| 摘要 |
<p>PURPOSE:To prepare the title gas rich in CO through easy and accurate regulation of H2/CO ratio, by incomplete combustion of a hydrocarbon fuel contg. CO2 and steam added thereto within a gas generator. CONSTITUTION:A mixed gas prepd. by feeding steam from a supply pipe 30 into CO2 contained in a supply pipe 28 is added to a hydrocarbon fuel (e.g., C6H6) contained in a supply pipe 29, thereby preparing a mixed fuel. The fuel thus prepd. is introduced into the inside 7 of a gas generator 1 through an inner pipe 12 while O2 is introduced thereinto as a combustion improver through an outer pipe 13, where the fuel is burned, thereby preparing a mixed gas mainly composed of H2 and CO. The mixed gas is discharged from an exhaust passage 5, and the heat is removed therefrom in a waste heat boiler 20. Then, the moisture is removed therefrom in a scrubber 21, and dust is removed therefrom with a dust collector 23. The pressure of the treated gas is raised with a compressor 24, and CO2 is separated in a CO2 absorber 26, thereby preparing a gas product. On the other hand, CO2 separated in the absorber 26 is purified in a CO2 stripper 27 and then circulated in a supply pipe 28.</p> |
