In-line injection of alkaline absorbant to remove H.sub.2 S

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

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423224, 423228, 423234, 423573R, 423DIG9, C01B 1705, B01D 5334

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active

044990596

ABSTRACT:
Hydrogen sulfide is removed from a gas stream by injecting an alkaline solution into the gas stream. The velocity of the gas stream is such that it has a Reynolds number of at least 50,000 and the Weber number for the injected alkaline solution is at least about 16. Alkali metal hydroxides and polyvalent metal chelates are useful alkaline solutions.

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patent: 2161663 (1939-06-01), Baehr et al.
patent: 2747962 (1956-05-01), Heitz et al.
patent: 3286992 (1966-11-01), Armeniades et al.
patent: 4009251 (1977-02-01), Meuly
patent: 4085192 (1978-04-01), Van Scoy
patent: 4293531 (1981-10-01), Field et al.
patent: 4325923 (1982-04-01), Botton et al.
R. W. Hohlfeld, "Selective Absorption of H.sub.2 S From Sour Gas", Apr. 1979, SPE 7972, pp. 1-8.
Ronald W. Hohlfeld, "New H.sub.2 S Scrubber Cleans Small or Large Gas Streams", Oil & Gas Journal-Oct. 15, 1979, pp. 129-130.

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