Process for scavenging hydrogen sulfide using glyoxal

Details Process for scavenging hydrogen sulfide using glyoxal Process for scavenging hydrogen sulfide using glyoxal

B - Operations, Transporting

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B01D 53/34 (2006.01) B01D 53/14 (2006.01) C10G 70/00 (2006.01) C10L 3/10 (2006.01) C23F 11/18 (2006.01)

Patent

CA 2034895

HOE 90/F 026 ABSTRACT OF THE DISCLOSURE Process for scavenging hydrogen sulfide using glyoxal A process for scavenging hydrogen sulfide from gases, in which the hydrogen sulfide-containing gas is introduced into an aqueous glyoxal solution of at least 15 % by weight strength at a pH of a solution of 5 to 11 until the molar ratio of glyoxal to hydrogen sulfide is 3 to 2. The solid reaction product obtained in this way, which contains the hydrogen sulfide in bound form, is separated off. Owing to its stability and insolubility in acids and bases, it can be disposed of without problems.

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