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Showing posts with label Bio Fuel. Show all posts
Showing posts with label Bio Fuel. Show all posts

14 August 2010

Fourth Generation Biofuels

Fourth generation biofuels is a term that I’ve seen presented as various different technologies so it’s hard to really define exactly what these fuels are. One definition of a fourth generation biofuel is crops that are genetically engineered to consume more CO2 from the atmosphere than they’ll produce during combustion later as a fuel. Another definition is genetically engineered crops similar to the ones just mentioned but combined with synthesized microbes that will convert the biofuels produced into even more efficient fuel. For example a plant could be grown then converted into a fuel which is then exposed to a microbe that changes it directly into gasoline. Yet another definition is genetically modified or synthesized microbes that convert CO2 in the atmosphere directly into usable fuels.
With all these different definitions of what a fourth generation biofuel is its no wonder that it can be so hard to find a solid explaination. The answer is that no one really knows what a fourth generation biofuel is yet except everyone seems to agree it involves genetic modifications.
However, even though it involves genetic modifications that can’t be the sole definition. Let me recap the different biofuel generations for you. First generation biofuels are the fuels currently in use such as biodiesel. Second generation biofuels are similar fuels but produced from non-food crops. Third generation biofuels are genetically modified crops that capture more CO2 from the atmosphere resulting in a carbon neutral fuel. This third generation is why fourth generation has to be more than simply genetically modified crops. So, what is a fourth generation biofuel then? I would define a fourth generation biofuel as biofuels that result in a negative carbon impact when combusted.
Since third generation biofuels result in a carbon neutral impact and many examples of a fourth generation biofuel mention more carbon being consumed than is released during use this seems like a suitable definition.
The idea of a carbon negative biofuel is an extremely good one if you’re concerned about the effects of global warming due to CO2 levels in our atmosphere. Not only would it allow us to have a renewable non-food crop based biofuel for various uses but also cut down on global warming so it’s a sort of double whammy. I’m personally not convinced global warming is due to increased CO2 levels but it’s good to know there are viable solutions already reaching laboratory enviornments and not just stuck in theory.

18 July 2010

Coconut Oil As Diesel Fuel Substitute


Utilization of Palm Oil as a Source of New Energy Departure from the concerns of the fishermen will have difficulty in accessing remote areas for diesel fuel, Central Library Desrial, M. Eng, Chairman, Department of Agricultural Technique, Bogor Agricultural University (IPB) developed an innovative converter fuel oil into diesel fuel equivalent. Fishermen living in coastal areas, will certainly younger than the solar access of coconut oil. Coconut is grown in many coastal areas can be used for various things, one of which is to transform the flesh into coconut milk and coconut oil, and separates between fat and water. Fat is then to be coconut oil. Meanwhile, to make one liter of coconut oil, it takes twenty coconuts.
In addition to these efforts, coconut oil can also be obtained from copra. Copra is dried coconut flesh and oil contain as much as 34.7 percent. After drying, copra cut into small pieces. Then by pressing the discount will produce palm oil. Coconut oil was precipitated and filtered. Screening results are given alkali potassium hydroxide (KOH) or sodium hydroxide (NaOH) to remove free fatty acids. Then clarified by absorbing the color of charcoal (carbon) is active. Sorting the coconut that will be made when the dried copra. Copra is later to be sold to a dealer to be used as cooking oil Filing coconut Basically, coconut oil has a viscosity of 50-60 degrees centi-Stokes (cSt). But with heating oil at a temperature of 80-90 degrees Celsius, the degree of viscosity of palm oil was going to match the degree of solar is 5 cSt viscosity. Coconut oil is heated by using the coil in the exhaust shaft. After reaching the temperature of 80-90 degrees centigrade, dikabutkan coconut oil to diesel engine combustion chamber. Coconut oil Here are experiencing the same process as diesel fuel, palm oil burned to produce energy of motion machine. To purchase a cooling coil and modify diesel engine exhaust into palm oil converter will cost around Rp. 100 000. Even so, the cost is still cheaper than the cost incurred by the fishermen to buy diesel fuel continuously. In addition to efforts undertaken by IPB lecturer, actually has a lot of work done by the other parties to create new energy sources, including by young people. Various efforts, it is hoped will inspire young children to continue to innovate and develop technology-technology that seeks to preserve the environment and fight climate change.
Adapted from Kompas, May 21, 2010, pp. 14.

Minyak Kelapa Sebagai Pengganti Solar

Pemanfaatan Minyak Kelapa sebagai Sumber Energi Baru
Berangkat dari keprihatinan akan kesulitan nelayan di daerah terpencil untuk mengakses solar, Dr.Ir. Desrial, M.Eng, Ketua Departemen Tekhnik Pertanian Institut Pertanian Bogor (IPB) mengembangkan sebuah inovasi pengubah minyak kelapa menjadi bahaan bakar setara solar.
Nelayan yang tinggal di daerah pantai, tentunya akan lebih muda mengakses minyak kelapa dibandingkan solar. Kelapa yang banyak tumbuh di daerah pantai bisa dimanfaatkan untuk berbagai macam hal, salah satunya adalah mengubah daging minyak kelapa menjadi santan, lalu memisahkan antara lemak dan airnya. Lemak inilah yang kemudian menjadi minyak kelapa. Sedangkan untuk membuat satu liter minyak kelapa, dibutuhkan dua puluh butir kelapa.

Selain usaha ini, minyak kelapa juga bisa didapat dari kopra. Kopra adalah daging kelapa yang dikeringkan dan mengandung minyak sebanyak 34,7 persen. Setelah proses pengeringan, kopra dipotong kecil-kecil. Kemudian dengan pengepresan potongan tersebut akan menghasilkan minyak kelapa. Minyak kelapa ini diendapkan dan disaring. Hasil penyaringan diberi alkali kalium hidroksida (KOH) atau natrium hidroksida (NaOH) untuk menghilangkan asam lemak bebas. Kemudian dijernihkan dengan penyerap warna berupa arang (karbon) aktif.
Pada dasarnya minyak kelapa memiliki derajat kekentalan 50-60 centi-Stokes (cSt). Namun dengan memanaskan minyak kelapa pada suhu 80-90 derajat Celsius, derajat kekentalan minyak kelapa tadi akan menyamai derajat kekentalan solar yaitu 5 cSt. Minyak kelapa dipanaskan dengan menggunakan koil pada batang knalpot. Setelah mencapai suhu 80-90 derajat celcius, minyak kelapa dikabutkan ke ruang pembakaran mesin diesel. Disini minyak kelapa tersebut mengalami proses yang sama seperti solar, minyak kelapa dibakar hingga menghasilkan energi gerak mesin. Untuk membeli koil pendingin dan memodifikasi knalpot mesin diesel menjadi konverter minyak kelapa dibutuhkan biaya sekitar Rp. 100.000. Walaupun begitu, biaya yang dikeluarkan ini masih lebih murah dibanding biaya yang dikeluarkan nelayan untuk membeli bahan bakar solar secara terus menerus.
Selain usaha yang dilakukan oleh dosen IPB ini, sebenarnya telah banyak usaha yang dilakukan oleh pihak-pihak lain untuk menciptakan berbagai sumber energi baru, termasuk oleh anak muda. Berbagai usaha ini, diharapkan akan menginspirasi anak muda untuk terus berinovasi dan mengembangkan tekhnologi-tekhnologi yang berupaya untuk melestarikan lingkungan dan melawan perubahan iklim.

Disadur dari Kompas, 21 Mei 2010, hal. 14.

16 July 2010

Should Ethanol Subsidies be Renewed?

Jeff Coombe

The Ethanol industry has only responded tepidly to the Volumetric Ethanol Excise Tax Credit in the past, so why should it be renewed?

The U.S. ethanol industry is nearing a major deadline. The industry's primary subsidy mechanism, the Volumetric Ethanol Excise Tax Credit (VEETC), is set to expire on December 31, 2010. Federal ethanol subsidies were worth roughly $5 billion in 2009, a figure large enough to create vigorous debate over their renewal. Some call the credits a boondoggle, others a vitally important lifeline for an industry still in its formative years.

Whichever it is, one has to wonder whether we as a country and as taxpayers are getting our money's worth for it. All subsidies are intrinsically positive for the industries they support, of course. But how much of an impact is really felt by the industry, especially as compared to the cost to the taxpayer, is much harder to quantify.

This article will look at the history of subsidies and other government support mechanisms for the ethanol industry, and how they result in increased production, plant construction, and stock pricing. By lining up the dates of landmark legislation with several industry performance metrics, we are able to view the industry response in terms of production and growth, rather than rhetoric. Only pure-play ethanol company stocks are reviewed, represented here by Andersons, Inc. (ANDE), Pacific Ethanol (PEIX), BioFuel Energy Corp. (BIOF), and the now-defunct VeraSun Energy (VSE).

The data below is a limited snapshot, and cannot account for the myriad of variables that affect the ethanol industry. Supply-and-demand market conditions, economic climate, and even public perception impact businesses and investment decisions. While keeping this in mind, it is still striking how little of an effect the VEETC, by far the largest biofuel subsidy, has on the industry as a whole. Almost no metrics responded positively to key dates in the VEETC history, instead seeming to respond much more to direct producer incentives and production / use mandates.

History of Ethanol Incentives

The VEETC was enacted on October 22, 2004 with the American Jobs Creation Act, and set a $0.51/gallon credit for any blender of ethanol into the petroleum gasoline stream. It replaced a convoluted set of subsidies begun in 1979, with a partial federal tax exemption of gasoline blended with at least 10% ethanol (gasohol) by the Energy Tax Act. Fuel blender's tax credits and a pure alcohol tax credit were subsequently added, achieving roughly the same goals, but available to smaller fuel blenders that were unable to receive the excise tax exemption. The VEETC streamlined this system and provided a single mechanism for subsidizing ethanol use. The 2008 Farm Bill reduced the VEETC credit to $0.45/gallon.

One other federal tax credit applied to ethanol, the Small Ethanol Producer Tax Credit. Enacted in 1990, this credit allowed plants producing less than 30 million gallon per year to receive a $0.10/gallon credit for the first 15 million gallons of fuel produced annually. The size of plants that can receive the tax credit was subsequently raised to 60 million gallons per year, though it still only applied to the first 15 million gallons of annual production. The Small Ethanol Producer Tax Credit also expires at the end of 2010. In addition, some 30 states have enacted their own biofuel incentive measures.

The federal government also uses non-monetary support mechanisms to assist the ethanol industry. Foremost amongst those is the Renewable Fuel Standard (RFS), enacted with the August 8, 2005 Energy Policy Act, and amended with the Energy Independence and Security Act, signed into law on December 19, 2007. RFS1 was the 2005 version, and mandated that specific minimum volumes of ethanol be blended with gasoline in the national fuel pool. Starting at 4 billion gallons in 2006, the RFS ramped up the minimum volume of ethanol that had to be blended with gasoline to 7.5 billion gallons by 2012. The industry grew much faster than expected, though, and in 2007 the RFS was amended (RFS2). This raised the minimum volume of corn ethanol blending to 15 billion gallons per year, and adds another 20 billion gallons of cellulosic ethanol, biodiesel, and other advanced renewable fuels by 2022.

Early Years of the Ethanol Industry

Ethanol production as a large-scale industry began in the 1970's. Over 150 ethanol plants, mostly small on-farm distilleries, were built in response to the OPEC oil crisis and fuel prices spikes. However, many plants were going out of business by the end of the decade, and the first ethanol subsidy was installed in 1979 to support the flagging industry. While the volume of production steadily rose in the 1980's and 1990's, the excise taxes failed to stem the drop in plant numbers. By the mid-1980's, there were less than 40 ethanol plants in the U.S. Figure 1 shows numbers of U.S. ethanol plants and production numbers from 1960-2000. Reliable ethanol production volumes were not tracked until 1980.


*Source: RFA 2010 Ethanol Industry Outlook
**Source: BBI International

While the total number of plants barely changed in the 1980's and early 1990's, larger scale plants were being constructed and the ethanol production volume increased steadily over that time period. The Small Ethanol Producer Tax Credit was installed in 1990, and likely contributed to an increase in total production from 900 million gallons in 1990 to 1.4 billion gallons in 1995. How this credit was set up is in itself an indicator of its impact on the ethanol industry. The Small Ethanol Producer Tax Credit is the only credit that is paid directly to the companies that make ethanol. The VEETC and its predecessor excise credits are paid to fuel blenders, which are often petroleum refineries or bulk distributors, and not the ethanol producers themselves. While the majority of the excise credit finds its way back to producers in the form of better prices for their product, the subsidy effectively incentivizes oil companies to use ethanol.

Boom Times

Everyone knows the ethanol industry experienced a boom cycle in the mid-2000's. What is less agreed upon is what set of market forces really caused this boom. Contrary to popular belief, the data shows that the VEETC, enacted in 2004, did not immediately result in a change of ethanol plant construction. Between 2002 and 2005, the number of new plants or plant expansions announced held relatively static in the neighborhood of 15 plants per year. Total production capacity of plants grew slightly during that time. The real growth in the ethanol industry came in 2006 and 2007, which more closely corresponds to the RFS implementation. Figure 2 shows the relative inactivity between 2004 and 2005, and the large increase in construction projects from 2006-2008.

It is important to take into account the lag time between when a project is conceived and construction begins. This lag allows for the requisite capital to be raised, construction firms contracted, and other aspects of the project to be developed to the point that construction can be announced. In the ethanol industry, and especially in the boom years, the project development period is usually on the order of 12-18 months. If the VEETC was a major difference maker in the decision to build an ethanol plant, at least some early adopters would have been able to capitalize in 2005, and would have registered an uptick in construction. As it worked out, though, the bulk of industry growth came 2-3 years later.


Source: Renewable Fuels Association

A measure of a company's health, and the most immediate indicator of positive and negative changes affecting a company, are shown in its stock price. In today's investing world, stock prices respond instantly to the slightest news, and it is here that the indifference towards the VEETC is most apparent.

If financial experts had agreed it was vital for the industry, stock prices should have jumped after signing of the VEETC. On the contrary, Figure 3 shows that there was almost no change in ethanol company stock pricing in 2004 and most of 2005. It was late-2005 and 2006 before the pure-play ethanol company stocks began their meteoric rise, immediately after signing of RFS1. Later, the increase in mandated volumes of ethanol production, through RFS2 in 2007, lines up with minor spikes in all four stock prices. This data indicates that investors were more responsive to RFS legislation than the VEETC. (Stocks are shown as a percentage of their highest point within the time period, in order to show the wide range of share values on one graph.)



The other end of the boom (late 2008 and 2009) saw the bankruptcy of VeraSun, sharp drops in ethanol stocks and almost instant halting of all ethanol plant building, including some projects in mid-construction. All of this occurred while the VEETC was in the middle of its 6-year effective term, and the RFS was being increased to its 36 billion gallon goal.

The reduction of the VEETC in 2008 does correspond with reductions in the numbers of plants constructed and stock values. A change of $0.06/gallon in the credit reduces profit to a 100 million gallon plant by $6 million annually, so this change was definitely felt by producers. By that time, however, corn feedstock prices had hit an all-time high, oil prices had crashed, and a recession was hitting the U.S. economy. These forces impacted the industry much more than changes to the federal incentives packages could help. On the other hand, the fact that the industry is still alive today is probably due in part to those support mechanisms.

Going Forward

Does this show that ethanol companies and the investors who fund plant construction were more interested in the guaranteed market for their product resulting from the RFS, rather than increases in profit from the tax credit? Or are subsidies, while easy to point to, insignificant in the face of the much larger economic forces that really determine the health of the industry (general economic and investment climate, crush spread, etc)?

It is impossible to argue that the VEETC did not help spur investment into the ethanol area, and equally as difficult to argue that it isn't helping the industry through the bad times. It is not a perfect incentive, however. The purpose of the VEETC was to equalize the cost of ethanol with gasoline, but at times it has not been enough to help the producers, and at other times bonus profit on top of an already profitable product. Creating a guaranteed market for ethanol through mandated volumes of use, via RFS1 and RFS2, seems have a much greater effect on the industry at a much lower cost. Mandated use stabilizes the market, and still allows for the most efficient, low-cost producers to rise to the top.

A bill for renewing the VEETC and Small Ethanol Producer Tax Credit has been proposed in the House and Senate. Cattle and dairy groups have raised opposition to the measure, not interested in supporting their competition for corn any longer. Many groups feel the ethanol industry, at least the corn-based subset of the industry, has matured and should not need further subsidization in the form of tax credits.

With the biofuels industry mired in a worse rut than the overall U.S. economy, government efforts to help the industry should not be cut. However, alternative incentive schemes need to be devised that provide more bang for the taxpayer buck. Systems including grants and loan guarantees for the construction of plants using second-generation feedstocks, a blending equalization scheme recently proposed in Biofuels Digest, and a new tax-and-tariff system proposed by researchers at Iowa State University and the USDA are all being discussed. With the current subsidy set to expire, now is the best time to explore better and more effective support schemes for the U.S. biofuels industry.

Jeff Coombe has been in the renewable energy and environmental science field for 7 years, including experience developing ethanol and biodiesel production facilities, project management for end use vehicle fleet conversions to alternative fuels, and environmental protection management. He is an active member of the Colorado Governor’s Biofuels Coalition steering committee, and has presented research findings at conferences including the International Algae Congress (Amsterdam, Netherlands), the Advanced Biofuels Workshop (Portland, Oregon), and the Colorado Renewable Energy Conference (Pueblo, Colorado). Strengths include data acquisition and analysis, emerging feedstock and production technologies, and inter-industry relations. Mr. Coombe is currently seeking a project development position with a company local to the Denver, CO area. Click here to view his resume and biography.

11 March 2010

CERA Week: Natural Gas Industry Looks To Shore Up Demand

By Jason Womack 
   Of DOW JONES NEWSWIRES 
 
HOUSTON (Dow Jones)--The natural gas industry is grappling with a big problem: trying to find an outlet for vast new supplies of the fuel.
The boom in domestic natural-gas production from onshore natural-gas fields known as shales has dominated much of the discussion at the IHS Cambridge Energy Research Associates conference. And while many industry executives and experts agree that a global economic recovery will eventually lead to the long-term demand growth needed to absorb excess supply, near-term demand remains stunted.
"We need to be better about the facts and hopefully, over time, that will build more support for gas," said Helge Lund, president and chief executive of Statoil ASA (STO), which is investing billions in U.S. shale-gas development.
Over the course of the conference, executives have promoted the fuel as a secure and robust domestic energy source that provides a low-carbon alternative to other fossil fuels, and they encouraged attendees to do the same.
"It's a no-brainer," Steven Farris, chief executive of Apache Corp. (APA), said during a panel discussion at which he advocated wider use of natural gas as a transportation fuel. "I truly believe that we are going to use more natural gas in this country."
The pressure to peddle the commodity comes after the economic downturn undermined demand - particularly among industrial users, which account for about a third of domestic consumption. Prices have plunged more than 65% from their 2008 summer highs above $13 a million British thermal units.
However, some see price volatility falling away as producers continue to tap new fields and secure low-cost supplies that will compete more effectively against coal, a staple fuel source for electricity generation in the U.S.
"We should expect relatively low prices for the long term," Chad Deaton, chief executive of oilfield-services provider Baker Hughes Inc. (BHI).
Still, Deaton said during a panel discussion that industry participants--from those developing technology to producers, to utilities--need to agree on a pricing framework to make the economics of the business work.
-By Jason Womack, Dow Jones Newswires; 713-547-9201 jason.womack@dowjones.com

11 February 2010

Liquid Coal as Fuel

by Dian Shofinita

In the U.S., the coal industry is touting a plan to transform millions of tons of coal into diesel or other liquid fuels. Some parties considered that this plan is a process that is expensive and inefficient. The reason is simple: environmental issues. Liquid coal is produced when coal is converted into liquid fuels that can be used for transportation. There are two methods to convert coal into liquid fuels: - Direct Liquefaction In this method, coal is dissolved at high temperature and pressure. This process is very efficient, but the liquid products require further refining to produce the characteristics of good fuel. - Indirect Liquefaction In this method, coal digasifikasi to form syngas (a mixture of hydrogen and carbon monoxide). Syngas is then condensed by using a catalyst (Fischer-Tropsch stage) to produce high quality products.

Derived liquid fuels coal has a sulfur-free nature, low-yield particulates and nitrogen oxides yield low. Another advantage of using liquid coal is the coal available in the entire world, thus increasing the energy security of a region. However, some parties refused pengguanaan liquid coal as an alternative fuel. In use, liquid coal as an alternative fuel can be judged: 1. Increasing the negative impacts of coal mining 2. Effects of global warming almost twice the fuel per gallon

The spread of large-scale liquid coal plant can cause a significant increase of coal mining. Coal mining will have a negative effect harmful. These mines can cause a toxic waste and is acid and will contaminate the ground water. Besides increasing harmful effects on the environment, increased coal production could also have negative impacts on the people who live and work around the mining area. Liquid coal production requires coal and energy in large quantities. This process is also considered inefficient. In fact, only 1 ton of coal can be converted into 2 barrels of gasoline. Conversion process is inefficient, dirty coal properties, and energy needs of large quantities of liquid coal causes produce almost twice the global warming causing emissions than regular gasoline. Although carbon is released during the production captured and stored, liquid coal would still release 4 to 8 percent of global warming pollution more than ordinary gasoline.


Some experts claim that the use of liquid coal, including categories of "clean" because it is free of sulfur, but the coal converted into transportation fuels, two streams of carbon dioxide are formed: one from liquid coal production plants and one of the exhaust pipes of vehicles that burn the fuel. Emissions from liquid coal plants producing more than factories producing and refining crude oil to produce gasoline, diesel, and other transportation fuels. Besides the negative impact on global warming, liquid coal also has other negative impacts on the environment. More than 4 gallons of water needed for each gallon of fuel produced. This will threaten the water supply is limited. The effects of the above explains that the use of coal as an alternative fuel and harmful to the environment is inconsistent with the pursuit of global warming solutions. Some of the rate compared with using liquid coal as an alternative fuel, better to invest for the energy industry more environmentally friendly and help us solve global warming problems. Liquid coal, seen from the negative impact of the above, is not the right answer for the future of world energy.


Source:




BatubaraCoal

In the U.S., the coal industry is touting a plan to transform millions of tons of coal into diesel or other liquid fuels. Some parties considered that this plan is a process that is expensive and inefficient. The reason is simple: environmental issues. Liquid coal is produced when coal is converted into liquid fuels that can be used for transportation. There are two methods to convert coal into liquid fuels: - Direct Liquefaction In this method, coal is dissolved at high temperature and pressure. This process is very efficient, but the liquid products require further refining to produce the characteristics of good fuel. - Indirect Liquefaction In this method, coal digasifikasi to form syngas (a mixture of hydrogen and carbon monoxide). Syngas is then condensed by using a catalyst (Fischer-Tropsch stage) to produce high quality products.
Proses Pembuatan Coal to LiquidLiquid Coal Processing

Derived liquid fuels coal has a sulfur-free nature, low-yield particulates and nitrogen oxides yield low. Another advantage of using liquid coal is the coal available in the entire world, thus increasing the energy security of a region. However, some parties refused pengguanaan liquid coal as an alternative fuel. In use, liquid coal as an alternative fuel can be judged:

  1. Increasing the negative impacts of coal mining
  2. Effects of global warming almost twice the fuel per gallon
Emisi CO2 CTL

CO2 Emission

Penyebaran skala besar pabrik batubara cair dapat menyebabkan peningkatan yang signifikan dari penambangan batubara. Penambangan batubara akan memberikan dampak negatif yang berbahaya. Penambangan ini dapat menyebabkan limbah yang beracun dan bersifat asam serta akan mengkontaminasi air tanah. Selain dapat meningkatkan efek berbahaya terhadap lingkungan, peningkatan produksi batubara juga dapat menimbulkan dampak negatif pada orang-orang yang tinggal dan bekerja di sekitar daerah penambangan. Produksi batubara cair membutuhkan batubara dan energi dalam jumlah yang besar. Proses ini juga dinilai tidak efisien. Faktanya, 1 ton batubara hanya dapat dikonversi menjadi 2 barel bensin. Proses konversi yang tidak efisien, sifat batubara yang kotor, dan kebutuhan energi dalam jumlah yang besar tersebut menyebabkan batubara cair menghasilkan hampir dua kali lipat emisi penyebab global warming dibandingkan dengan bensin biasa. Walaupun karbon yang terlepas selama produksi ditangkap dan disimpan, batubara cair tetap akan melepaskan 4 hingga 8 persen polusi global warming lebih banyak dibandingkan dengan bensin biasa.

Emisi Berbagai Bahan Bakar

Emisi Berbagai Bahan Bakar

Beberapa ahli menyatakan bahwa penggunaan batubara cair termasuk kategori “bersih” karena bebas sulfur, namun saat batubara diubah menjadi bahan bakar transportasi, dua aliran karbon dioksida terbentuk: satu dari pabrik produksi batubara cair dan satu dari pipa pembuangan kendaraan yang membakar bahan bakar tersebut. Emisi dari pabrik produsen batubara cair lebih besar daripada pabrik produsen dan pemurnian minyak mentah untuk memproduksi bensin, diesel, dan bahan bakar transportasi lainnya. Selain berdampak negatif pada global warming, batubara cair juga memiliki dampak negatif lain terhadap lingkungan. Lebih dari 4 gallon air dibutuhkan untuk setiap gallon bahan bakar yang diproduksi. Hal ini akan mengancam persediaan air yang terbatas. Dampak-dampak di atas menjelaskan bahwa penggunaan batubara sebagai bahan bakar alternatif berbahaya bagi lingkungan dan tidak sejalan dengan pencarian solusi masalah global warming. Beberapa pihak menilai dibandingkan dengan menggunakan batubara cair sebagai bahan bakar alternatif, lebih baik berinvestasi untuk industri energi yang lebih ramah lingkungan dan membantu kita menyelesaikan permasalahan global warming. Batubara cair, dilihat dari dampak negatif di atas, bukanlah jawaban yang tepat untuk masa depan energi dunia.

Sumber:

http://www.worldcoal.org/pages/content/index.asp?PageID=423
http://www.nrdc.org/globalWarming/coal/liquids.pdf
http://www.sierraclub.org/coal/liquidcoal/
http://maine.sierraclub.org/Liquid%20coal%20fact%20sheet.pdf

Gambar: http://www.energyandoil.com/the-coal-to-liquid-debate-part-i http://www.greencar.com/articles/five-fuels-driving-future.php

29 December 2009

Bio Fuel from Nyamplung (Calophyllum Inophyllum L.)


Nyamplung (Calophyllum inophyllum L.) included in the clan who have Callophylum of knowledgeable enough in the world, namely Madagascar, East Africa, South and Southeast Asia, Pacific Islands, West Indies, and South America. In Indonesia, nyamplung spread from West Sumatra, Riau, Jambi, South Sumatra, Lampung, Java, West Kalimantan, Central Kalimantan, Sulawesi, Maluku and East Nusa Tenggara and Papua. To date, the potential natural nyamplung in Indonesia is not yet known exactly, Results of nappe area of Satellite Imagery Landsat7 ETM + in 2003 shows that the standing nyamplung all natural beaches in Indonesia to reach broad total 480,000 ha, and most (? 60%) are in the area forest.
Excess nyamplung as a raw material for biofuel is bijinya rendemen have a high, can reach 74%, and in the utilization does not compete with the interests of food. Some of the benefits of nyamplung reviewed the prospects of the development and utilization of others, are nyamplung plants grow and spread evenly naturally in Indonesia; easy regeneration and bear fruit throughout the year showed a high survival power of the environment; plants relatively easy budidayakan good plant type (monoculture) or forest mix (mixed-forest); match in a dry area, permudaan more natural, and bear fruit throughout the year, almost all the plants nyamplung berdayaguna and produce various products that have economic value; Nyamplung standing forest functions as a wind breaker (wind breaker) to agricultural crops and border coastal conservation and utilization of biofuel nyamplung can press the rate of forest trees as firewood; higher seed productivity than other types (Distance fence 5 tons / ha; palm 6 tons / ha; nyamplung 20 tons / ha).
Some of the benefits of biodiesel produced from oil nyamplung is rendemen nyamplung quite high compared to other types of plants (40-60% distance of the fence, Sawit 46-54%; Nyamplung and 40-73%), some parameters have met the quality standard of biodiesel Indonesia, oil seeds nyamplung have power fuel twice longer than oil. In the test to boil water, oil is 0.9 ml, while oil seed nyamplung only 0.4 ml; have a competitive advantage in the future, among other biodiesel nyamplung blender can be used as diesel fuel composition with a certain, even when used 100% appropriate processing technology, better quality of emissions from diesel fuel, can be used as a substitute for petroleum biokerosen.
Another benefit of the plant timber that is nyamplung including commercial timber, can be used for making boats, beam, pillar, floor boards and planks on the building and housing materials kontruksi light; getahnya can disadap to get the oil indicated that nutritious for the growth of HIV virus . Leaves the compound costatolide-A, saponin and hidrocyanic acid as the nutritious oles drugs for rheumatism pain, cosmetic ingredients for skin care, to heal wounds such as burns and wounds cut. Interest rates can be used as a mixture of oil to scent the hair. Bijinya after oil processed into useful to pelitur, oil and hair oil series, also nutritious for the cathartic and rheumatism. Nyamplung cultivation does not require a large investment.
The availability of land for potential development nyamplung plants also spread across the country. When all of the needs of nyamplung supplied biodiesel, biodiesel will be required as many as 720,000 kilo liters, equivalent to 5.1 million tons of seed nyamplung, with the assumption that 2.5 kg of seeds nyamplung akan produce 1 liter of oil nyamplung; thus akan area required to harvest crops nyamplung at least 254,000 hectares in the year 2025. With a similar pattern with the economic analysis of the study on development of Plantation Forest Rakyat (HTR), which states that in 1 ha 1 person required labor, plant nyamplung area of 254 thousand hectares will be able to absorb 254 thousand workers. With many potential advantages nyamplung plant is a plant that provides multifunctional and benefits to humans and the environment. Multifunctional and benefits include the potential nyamplung plants as forest and land rehabilitation, as an alternative biofuel, and to increase community empowerment (comdev). ant / kp
* * * * *

RESEARCH AND DEVELOPMENT CENTER FOREST PRODUCT (P3HH)
Has conducted RESEARCH DEVELOPMENT Biodiesel
FROM NYAMPLUNG seeds (Calophyllum inophyllum L.)
(Year 2005-2008)

History
R & D Center of forestry research has started producing biodiesel from the seeds of nyamplung intensively since 2005, and in 2008 obtained the results as follows:
  • Biodiesel from the seeds have been tested nyamplung nature fisiko-kimianya by R & D Center for Oil and Gas (2008) and all-is (as much as 17) have met national standards indonesia (SNI) for biodiesel, No: 04-7182-2006 .
  • Biodiesel has been tested nyamplung try on the road (road-rally test) three times, total distance reaches 370 km. From all trials conducted, the results obtained are satisfactory without some technical machinery. Vehicle speed is reached is 120 km / hour.
  • Tests with the engine performance of biodiesel fuel nyamplung still held by the Puspitek LIPI Serpong. Once completed, the result will be submitted for certification in the BSN (National Board of Certification).

12 August 2009

Teknologi Produksi Biodiesel

Terdapat beberapa teknologi proses biodiesel di pasaran dunia. Teknologi proses yang digunakan pada kajian ini dikembangkan oleh perusahaan LURGI di Jerman yang disebut Proses Pengolahan langsung Transesterifikasi. Asumsi penggunaan bahan baku adalah dari minyak sawit (CPO) atau turunnya seperti RPO (Refind Palm Oil), CPS (Crude Palm Stearin), RPS (Refind Palm Stearin). Untuk memudahkan CPO termasuk CPS dan RPO termasuk RPS. Biodiesel kepala sawit atau palm oil metilester berarti adalah produk transesterifikasi yang berasal dari CPO atau RPO.

Kelapa sawit dalam bentuk minyak mentah mengandung 93% minyak biodiesel, 4% Asam lemak bebas atau FFA (Free Fatty Acid) dan sejumlah kecil campuran lainnya seperti impurities atau kotoran dan gum. Bahan baku CPO harus dicampur dengan senyawa asam phospat untuk menghilangkan kotoran seperti gum dan logam dll. Kemudian dibersihkan dengan menggunakan zat bleaching earth diikuti dengan filtralisasi. Minyak yang telah dihilangkan asamnya adalah RPO (kandungan asam lemak bebas <>


Kesimpulan

  • Biodiesel adalah bahan bakar alternatif masa depan yang ramah lingkungan dan bersifat renewable
  • Pengembangan biodiesel dalam negeri terutama ditujukan untuk mengatasi polusi yang diakibatkan oleh emisi yang dikeluarkan oleh bahan bakar petroleum/bensin.
  • Terlaksananya pengembangan biodiesel sangat ditentukan oleh komitmen dan dukungan pemerintah, melalui kewenangannya dalam regulasi
  • Pengurangan pemborosan devisa negara karena pengurangan impor minyak mentah.
  • Menyediakan lapangan kerja baru
  • Meningkatkan permintaan dalam negeri untuk CPO, perbaikan harga CPO, yang pada akhirnya diharapkan berdampak pada perbaikan pendapatan petani kelapa sawit
  • Penurunan anggaran pemerintah untuk subsidi kesehatan golongan masyarakat ekonomi lemah (mayoritas korban emisi tinggi petrodiesel)

Bio Fuel from Nyamplung (Calophyllum Inophyllum L.)


Nyamplung (Calophyllum inophyllum L.) included in the clan who have Callophylum of knowledgeable enough in the world, namely Madagascar, East Africa, South and Southeast Asia, Pacific Islands, West Indies, and South America. In Indonesia, nyamplung spread from West Sumatra, Riau, Jambi, South Sumatra, Lampung, Java, West Kalimantan, Central Kalimantan, Sulawesi, Maluku and East Nusa Tenggara and Papua. To date, the potential natural nyamplung in Indonesia is not yet known exactly, Results of nappe area of Satellite Imagery Landsat7 ETM + in 2003 shows that the standing nyamplung all natural beaches in Indonesia to reach broad total 480,000 ha, and most (? 60%) are in the area forest.
Excess nyamplung as a raw material for biofuel is bijinya rendemen have a high, can reach 74%, and in the utilization does not compete with the interests of food. Some of the benefits of nyamplung reviewed the prospects of the development and utilization of others, are nyamplung plants grow and spread evenly naturally in Indonesia; easy regeneration and bear fruit throughout the year showed a high survival power of the environment; plants relatively easy budidayakan good plant type (monoculture) or forest mix (mixed-forest); match in a dry area, permudaan more natural, and bear fruit throughout the year, almost all the plants nyamplung berdayaguna and produce various products that have economic value; Nyamplung standing forest functions as a wind breaker (wind breaker) to agricultural crops and border coastal conservation and utilization of biofuel nyamplung can press the rate of forest trees as firewood; higher seed productivity than other types (Distance fence 5 tons / ha; palm 6 tons / ha; nyamplung 20 tons / ha).
Some of the benefits of biodiesel produced from oil nyamplung is rendemen nyamplung quite high compared to other types of plants (40-60% distance of the fence, Sawit 46-54%; Nyamplung and 40-73%), some parameters have met the quality standard of biodiesel Indonesia, oil seeds nyamplung have power fuel twice longer than oil. In the test to boil water, oil is 0.9 ml, while oil seed nyamplung only 0.4 ml; have a competitive advantage in the future, among other biodiesel nyamplung blender can be used as diesel fuel composition with a certain, even when used 100% appropriate processing technology, better quality of emissions from diesel fuel, can be used as a substitute for petroleum biokerosen.
Another benefit of the plant timber that is nyamplung including commercial timber, can be used for making boats, beam, pillar, floor boards and planks on the building and housing materials kontruksi light; getahnya can disadap to get the oil indicated that nutritious for the growth of HIV virus . Leaves the compound costatolide-A, saponin and hidrocyanic acid as the nutritious oles drugs for rheumatism pain, cosmetic ingredients for skin care, to heal wounds such as burns and wounds cut. Interest rates can be used as a mixture of oil to scent the hair. Bijinya after oil processed into useful to pelitur, oil and hair oil series, also nutritious for the cathartic and rheumatism. Nyamplung cultivation does not require a large investment.
The availability of land for potential development nyamplung plants also spread across the country. When all of the needs of nyamplung supplied biodiesel, biodiesel will be required as many as 720,000 kilo liters, equivalent to 5.1 million tons of seed nyamplung, with the assumption that 2.5 kg of seeds nyamplung akan produce 1 liter of oil nyamplung; thus akan area required to harvest crops nyamplung at least 254,000 hectares in the year 2025. With a similar pattern with the economic analysis of the study on development of Plantation Forest Rakyat (HTR), which states that in 1 ha 1 person required labor, plant nyamplung area of 254 thousand hectares will be able to absorb 254 thousand workers. With many potential advantages nyamplung plant is a plant that provides multifunctional and benefits to humans and the environment. Multifunctional and benefits include the potential nyamplung plants as forest and land rehabilitation, as an alternative biofuel, and to increase community empowerment (comdev). ant / kp
* * * * *

RESEARCH AND DEVELOPMENT CENTER FOREST PRODUCT (P3HH)
Has conducted RESEARCH DEVELOPMENT Biodiesel
FROM NYAMPLUNG seeds (Calophyllum inophyllum L.)
(Year 2005-2008)

History
R & D Center of forestry research has started producing biodiesel from the seeds of nyamplung intensively since 2005, and in 2008 obtained the results as follows:
  • Biodiesel from the seeds have been tested nyamplung nature fisiko-kimianya by R & D Center for Oil and Gas (2008) and all-is (as much as 17) have met national standards indonesia (SNI) for biodiesel, No: 04-7182-2006 .
  • Biodiesel has been tested nyamplung try on the road (road-rally test) three times, total distance reaches 370 km. From all trials conducted, the results obtained are satisfactory without some technical machinery. Vehicle speed is reached is 120 km / hour.
  • Tests with the engine performance of biodiesel fuel nyamplung still held by the Puspitek LIPI Serpong. Once completed, the result will be submitted for certification in the BSN (National Board of Certification).