Method for scavenging sulfides

Details Method for scavenging sulfides Method for scavenging sulfides

1995-10-27

1997-11-18

Bos, Steven

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423229, 4232427, B01D 5348, B01D 5352, C10G 2920

Patent

active

056884788

ABSTRACT:
A method is provides for reducing the levels of hydrogen sulfide and organic sulfides present in gaseous hydrocarbon streams by contacting the streams with a composition comprising the reaction product of an alkanolamine with a C1 to C4 dialdehyde, especially ethanedial. The method involves delivery and storage of the reactants near the gas stream to be cleaned, forming the reaction product at a rate substantially equal to the consumption of scavenger by the sulfides, delivering the scavenger to a contacting vessel, contacting the sulfides in the gas stream with the scavenger to reduce the sulfide concentration below a given level, separating the gas stream from the spent scavenger and removing the spent scavenger from the vessel.

REFERENCES:
patent: 5462721 (1995-10-01), Pounds et al.

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