B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/14 (2006.01) B01D 53/18 (2006.01) B01D 53/52 (2006.01) B01D 53/62 (2006.01) B01D 61/42 (2006.01) B01D 61/46 (2006.01)
Patent
CA 2592926
A method for selectively removing hydrogen sulfide and carbon dioxide from sour gas by reacting the hydrogen sulfide and carbon dioxide in the sour gas with sodium hydroxide is disclosed. Also disclosed is a process for the production of a salt product from a sour gas stream. The reaction with sodium hydroxide creates a scrubber solution comprising water, hydrocarbons, contaminants and salts. The scrubber solution may be oxidized, filtered and can then be subjected to electrodialysis. Ammonia is introduced into the acid compartments of the cell. Sodium hydroxide and a salt product comprising ammonium sulfate or ammonium thiosulfate with ammonium bicarbonate, ammonium carbonate, ammonium carbamate may be produced. The regenerated sodium hydroxide may be used to sweeten further sour gas. The salt product may be used as a fertilizer.
Aristos Energy Inc.
Bennett Jones Llp
LandOfFree
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