No.48 石炭からの燃料製造プロセスのEAGLE炉による高効率化(ガス化・燃焼・液化(6))

概要

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Oil prices will continue to rise though there will be some fluctuation. On the other hand, the price of coal is expected to continue to be low and alternative oil made from coal is expected to add to fuel price stability in the market. But reduction of CO_2 emissions from coal usage is needed to mitigate global warming. We applied the EAGLE gasifier to an alternative oil production process to improve thermal efficiency. The shift reaction is needed to adjust H_2/CO ratio and the steam used for the shift reaction is one of the big reasons for efficiency loss. We developed a method to reduce steam usage by supplying water to the outlet of the gasifier. Water is changed into steam and the shift reaction proceeds without a catalyst because of the high temperature downstream from gasifier. We estimated the steam reduction effect of this method was about 17〜20%.
一般社団法人日本エネルギー学会の論文
2009-11-26