| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to simplify the equipment, to reduce cost and to simplify the control by using the high-temperature fluid inside the existing equipment in position upstream or downstream of the dry-process desulfurizer as a heating source for a gas for regenerating the dusulfurizing agent in a dry-process desulfurizer for a combustible gas. SOLUTION: A combustible gas from a first pipe 17 is passed through a desufurization tower 5 packed with a desulfurizing agent, and the desulfurized combustible gas is fed into a fuel battery apparatus 3 in position downstream of a dry-process desulfurizer 2. A regeneration gas from a third pipe 25 is passed through a heat exchanger 13 and a line heater 15 into a tower 5 containing the desulfurizing agent saturated with the adsorbed sulfur component, heated and then fed to remove the sulfur component from the desulfurizing agent. In order to heat the generation gas, the anode gas inside the fuel battery apparatus 3 is fed through a transfer line 28 into the heater 15. The regenerated gas containing the sulfur component is discharged through a discharge pipe 33 and the exchanger 13 out of the system. |
