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5' Rentech (U.S.) - coal or coke asfeedstock <br />6. ChorenIndustres (Gammanv) - <br />7' Byntro|munl (U.S.) - used natural gas as feedstock in a demonstration for the <br />U.S. Air Force. <br />In addition, there are a number ofresearch projects funded by the U.S. Department <br />of Energy to use organic materials as feedstocks. These include the Renewable <br />Energy Laboratory and Louisiana State University. <br />The Fischer-Tropsch process is an established technology that has been applied on a <br />large scale in some industrial sectors' Large-scale commercialization is impeded by <br />high capital costs, high operation and maintenance costs, the uncertain and volatile <br />price of crude oil, andenvironmental concerns. <br />As mentioned in Appendix B, Section 1.3.2, biogas production from wastes is a <br />mature technology with both large- and small-scale units in production worldwide. <br />In India alone, there are over 2 million farm units that produce biogas from animal <br />manures and other wastes. As of 2006, there were thousands of plants in Europe; <br />BernnenY alone had 3,500 that produced a total of 1,100 ;4VV. The newest of these <br />plants range between 400 and 800 KW, using crops and manure for feedstock. In <br />southern Europe, the production of biogas is primarily from landfills. In 2007, a <br />report on the potential of biogas in Europa by the bkoInsUtuta and the InatitutfOr <br />Energebkin Leipzig concluded that Germany alone can produce more biogas by 2020 <br />than all of the European Union's (EU) current natural gas imports from Russia. <br />Table 3-3 shows the production of biogas in Europe by country with the production <br />broken into three categories of feedstock: landfill gas, sewage sludge and other. <br />Summarized by feedstock, results in 64 percent landfill gas, 18.8 from sewage <br />s|udge and 17.2 ' other. The largest producer ofbiogas is the United Kingdom, closely <br />followed by Germany. The biogas ia approximately 5O percent methane, mixed with <br />carbon dioxide and other gases. <br />GBBkCO8027-01 9 August 15,2OO8 <br />