| 摘要 |
<p>1306911 Sulphur recovery AMOCO PRODUCTION CO 12 Jan 1971 [22 May 1970] 1533/71 Heading C1A Elemental sulphur is produced from hydrogen sulphide and sulphur dioxide contained in an effluent gas stream by (1) passing the latter through a reactor 2 containing a catalyst bed 6 via lines 4 and 5 at a temperature of 250‹ to 400‹ F. whereby sulphur is deposited on the catalyst, continuing step (1) until the hydrogen sulphide and sulphur dioxide content of the effluent therefrom increases to a level indicating the deactivation of the catalyst, (2) closing lines 5 and 8 and opening lines 12 and 44 so that reactor 14 becomes the operative reactor of step (1), (3) regenerating the catalyst bed 6 of reactor 2 by vaporizing the sulphur deposit using a gas at 450‹ to 700‹ F. introduced via lines 16 and 18, (4) recovering the vaporized sulphur via lines 20 and 22 in the condenser 24 and continuing step (3) until the catalyst 6 has been reactivated, (5) separating the liquid sulphur via line 26 and removing gas from the condenser at 450‹ to 700‹ F. via line 28, blower 30, heater 34 and line 38 to form the regenerating gas of step (3) and then (6) cooling catalyst bed 6 after regeneration by passing the recycled gas of step (5) at 250‹ to 400‹ F. around heater 34 via lines 32, 36 and 38 and into hot bed 6. This cycle is repeated with each reactor in turn and while reactor 14 is being used to remove the H 2 S and SO 2 from the effluent gas stream, reactor 2 is being regenerated and cooled so as to be available for the gas removal process when 14 has been deactivated.</p> |
