Separation of acid gases from coal carbonization gases
阅读：865发布：2023-05-15
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1. IN A PROCESS FOR TREATING ACTIFIER GASES FROM A HOT-VACUUM-ACTIFICATION PROCESS FOR THE RECOVERY OF HYDROGEN SULPHIDE AND HYDROGEN CYANIDE FROM COKE-OVEN GAS WHICH HAS BEEN PROCESSED TO REMOVE THEREFROM MOST OF THE AMMONIA AND PART OF THE VAPORS OF NAPHTHALENE AND SIMILAR COMPOUNDS ORIGINALLY PRESENT THEREIN, SAID ACTIFICATION PROCESS COMPRISING THE STEPS OF RECIRCULATING AN AQUEOUS ALKALINE ABSORBENT SOLUTION IN A CLOSED CYCLE BETWEEN A SCRUBBER IN WHICH THE GAS IS SCRUBBED BY THE AQUEOUS ABSORBENT SOLUTION AND AN ACTIFIER IN WHICH THE AQUEOUS ABSORBENT SOLUTION IS REGENERATED BY HEATING AT SUBATMOSPHERIC PRESSURE TOGETHER WITH THE STEPS OF PASSING THE VAPORS DISCHARGED FROM SAID ACTIFIER THROUGH A PLURALITY OF CONDENSERS IN SERIES IN EACH OF WHICH THE VAPORS ARE COOLED AND ALSO PASSING SAID VAPORS THROUGH A VACUUM PUMP LO-
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