Desulfurization of coke oven gases
First Claim
1. THE METHOD OF REMOVING HYDROGEN SULFIDE AND AMMONIA FROM COAL DISTILLATION GASES WHICH COMPRISES COOLING SAID GASES WHEREBY GAS LIQUOR IS OBTAINED, SCRUBBING SAID COOLED GASES IN A PRELIMINARY SCRUBBING OPERATION WITH DETARRED COLLECTING MAIN CONDENSATES WHILE MAINTAINING A GAS VELOCITY FROM ABOUT 1 TO ABOUT 5 METERS PER SECOND, COMPRESSING AND COOLING THE PRE-SCRUBBED GASES AND SCRUBBING THEM IN A SECOND PRESSURE SCRUBBING STAGE WITH THE LIQUID EFFLUENT OF THE FIRST SCRUBBING STAGE MAINTAINING THE SAME GAS VELOCITY, SUBJECTING THE GASES EMERGING FROM THE SECOND SCRUBBING STAGE TO A FRESH WATER TERMINAL AMMONIA SCRUBBING OPERATION TO REMOVE THE REMAINDER OF AMMONIA, CONTACTING CURDE GAS WITH THE LIQUID EFFLUENT OF SAID TERMINAL AMMONIA SCRUBBING OPERATION AND WITH THE GAS LIQUOR, WITHDRAWING AND COOLING THE COLLECTING MAIN CONDESNATE THUS OBTAINED, SAID COLLECTING MAIN CONDENSATE BEING UTILIZED IN SAID PRELIMINARY SCRUBBING OPERATION.
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1 Claim
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1. THE METHOD OF REMOVING HYDROGEN SULFIDE AND AMMONIA FROM COAL DISTILLATION GASES WHICH COMPRISES COOLING SAID GASES WHEREBY GAS LIQUOR IS OBTAINED, SCRUBBING SAID COOLED GASES IN A PRELIMINARY SCRUBBING OPERATION WITH DETARRED COLLECTING MAIN CONDENSATES WHILE MAINTAINING A GAS VELOCITY FROM ABOUT 1 TO ABOUT 5 METERS PER SECOND, COMPRESSING AND COOLING THE PRE-SCRUBBED GASES AND SCRUBBING THEM IN A SECOND PRESSURE SCRUBBING STAGE WITH THE LIQUID EFFLUENT OF THE FIRST SCRUBBING STAGE MAINTAINING THE SAME GAS VELOCITY, SUBJECTING THE GASES EMERGING FROM THE SECOND SCRUBBING STAGE TO A FRESH WATER TERMINAL AMMONIA SCRUBBING OPERATION TO REMOVE THE REMAINDER OF AMMONIA, CONTACTING CURDE GAS WITH THE LIQUID EFFLUENT OF SAID TERMINAL AMMONIA SCRUBBING OPERATION AND WITH THE GAS LIQUOR, WITHDRAWING AND COOLING THE COLLECTING MAIN CONDESNATE THUS OBTAINED, SAID COLLECTING MAIN CONDENSATE BEING UTILIZED IN SAID PRELIMINARY SCRUBBING OPERATION.
Specification
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Current AssigneeGeorg Huck, Otto Grosskinsky, Walter Klempt
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Original AssigneeGeorg Huck, Otto Grosskinsky, Walter Klempt
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InventorsOTTO GROSSKINSKY, GEORG HUCK, WALTER KLEMPT
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Application NumberUS03/623,955Time in Patent Office2,496 DaysField of SearchUS Class Current95/199CPC Class CodesC10K 1/10 with aqueous liquids alkali...
