B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/331, 23/347
B01D 53/14 (2006.01) C01B 17/04 (2006.01) C01B 17/05 (2006.01)
Patent
CA 1042183
METHOD OF PREVENTION AND REMOVAL OF SULFUR DEPOSITS FROM H2S ABSORPTION EQUIPMENT ABSTRACT OF THE DISCLOSURE A commercially feasible method is provided for con- trolling depositions of solid sulfur within plant equipment utilized in absorptive-regenerative processes for the removal of H2S from sour gas streams which eliminates costly shut- downs and manual cleaning of the plant equipment and permits removal of solid sulfur therefrom in conjunction with that produced during the regular process itself. The method com- prises adding ammonia to such H2S removal systems during running thereof in order to solubilize any solid sulfur and remove the same with the sulfur produced by circulating alkali absorption solution employed. Ammonia may be added to either the sour gas stream or directly to the absorption solution, and more- over can be added intermittently to remove preexisting sulfur deposits or on a semi-continuous basis as needed to substan- tially prevent undesirable sulfur buildup. The present method finds application in connection with known desulfurization pro- cesses such as the Stretford, Ferrox and Takahax.
224916
Richardson Frank P.
Young David A.
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