Removal of H.sub.2 S from gas streams

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

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423224, 423243, 423573R, 423575, 422193, 55 73, C01B 1716

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active

047584165

ABSTRACT:
A process for the removal of H.sub.2 S from sour gaseous streams is disclosed in which the sour gaseous stream is contacted with a solution containing solubilized iron chelates of nitrilotriacetic acid. The contacting is carried out in first and second contacting zones, the first being a gas-solution mixture formation zone and the second comprising a plurality of contacting sections adapted to provide reaction of the H.sub.2 S in the sour gaseous stream with the iron in the contacting solution without plugging due to deposition of sulfur.

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Chemical Engineering, May 13, 1985, pp. 18-21.
Chemical Processing, Mar. 1983, (Wallace & Bacchetti), 1 page.

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