| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide coal gasification power generation facility capable of preventing deposition of carbon in an impurity removing agent, piping, and the like in dry gas purification facility for a coal gasification gas. <P>SOLUTION: An exhaust gas after working in a gas turbine is added to piping 21 for sending to a desulfurizer 6 a coal gasification gas produced in a coal gasification furnace. Since the exhaust gas including water vapor and carbon dioxide is added to the coal gasification gas, deposition of carbon in the piping surface of a desulfurizing agent is prevented in the desulfurizer 6. By the exhaust gas addition, water shift reaction is promoted (1) so that the molar fraction x<SB POS="POST">CO2</SB>of CO<SB POS="POST">2</SB>is increased (2). The molar fraction x<SB POS="POST">CO2</SB>increase restrains the Boudouard reaction as a reaction from carbon monoxide to carbon dioxide and carbon so that carbon deposition is restrained (3). <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
