Method for removal of hydrogen sulfide from gaseous streams

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component

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423226, 423228, B01D 5356

Patent

active

061362824

ABSTRACT:
A method for removal of H.sub.2 S from an H.sub.2 S-containing natural gas stream in which a high surface area contactor is inserted into the natural gas stream and at least one H.sub.2 S scavenging agent is injected into the natural gas stream upstream of the contactor, the result of which is the distribution of the H.sub.2 S scavenging agent on at least a portion of at least one surface of the contactor. The distributed H.sub.2 S scavenging agent is contacted with the natural gas stream resulting in absorption of the H.sub.2 S into the H.sub.2 S scavenging agent and reaction therewith, forming at least one byproduct. Thereafter, the byproduct is removed from the natural gas stream.

REFERENCES:
patent: 5128049 (1992-07-01), Gatlin
patent: 5462721 (1995-10-01), Pounds
Kevin Fisher: Initial Results from GRI's 30 MMscf/Day Direct-Injection H.sub.2 S Scavenging Test Facility, presented at The Third Gas Research Institute Sulfur Recovery Conference, Austin, Texas, Oct. 12-15, 1997.
Isom, C., et al. "Sour Gas Treatment . . . ", Chemical Eng. (NY), vol. 101, issue #7, pp 147-148, Jul. 1994.

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