Non-precipitating regulation of ammonia content in sour gas...

Details Non-precipitating regulation of ammonia content in sour gas... Non-precipitating regulation of ammonia content in sour gas...

F - Mech Eng,Light,Heat,Weapons

25

J

162/106

F25J 3/02 (2006.01) B01D 53/14 (2006.01) C10K 1/16 (2006.01)

Patent

CA 1221022

"NON-PRECIPITATING REGULATION OF AMMONIA CONTENT IN SOUR GAS SOLVENT SCRUBBING SYSTEMS" Abstract The NH3 content is regulated in methanol used in a process for scrubbing out sour gases from gaseous mixtures and/or for preventing ice formation prior to the scrubbing step. The methanol is freed, after the scrubbing step, respectively of absorbed gaseous components and/or water, and reused in the cycle as scrubbing liquid and/or for preventing ice formation. A strong acid is added to the methanol from water-soluble ammonium salts. Thereby, dissolved salts are formed which are removed together with water. Deleterious trace acids arc also removed by an analogous tratement with a basic compound. The acid/base treatments are conducted in succession.

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