| 摘要 |
<p>PURPOSE:To provide a constant absorbing and regenerating performance by passing a high temperature reducing gas through four processes of absorbing, preliminarily regenerating, regenerating and reducing, thence removing sulfur compound absorbed by absorbent. CONSTITUTION:A dust removing gas in a line 1 is fed to a reactor 16 by a passage switching valve 4 for removal by absorption of sulfur compound therefrom by an absorbent 20 and the gas so refined is sent from a line 42 to a gas turbine by a passage switching valve 29. After completion of absorbing process, a reactor 19 is transferred to a regeneration process, air or oxygen- containing gas is supplied from a line 47 to a line 50 and, through a line 49, a heat exchanger 48 and a line 41, introduced in the reactors 18 and 19 by passage switching valves 27 and 28, the gas which has previously been used for regeneration of the absorbent, through passage switching valves 13 and 15, the heat exchanger 48, a line 52, SO2 reducing and sulfur recovering device 53, a heat exchanger 54, a line 55 and a heat exchanger 56, is led to a sulfur separator 57 and the sulfur is recovered from a line 64.</p> |
