Process for the removal of h2s from gas streams and for the...

Details Process for the removal of h2s from gas streams and for the... Process for the removal of h2s from gas streams and for the...

B - Operations, Transporting

01

D

B01D 53/52 (2006.01)

Patent

CA 2144585

A process for removing H2S from an H2S-containing gas stream including the steps of passing the H2S-containing gas stream so as to contact an alkaline liquid for a period of time of no more than 0.03 seconds, reacting the alkaline liquid with the H2S-containing gas stream so as to form a NaSH-containing liquid solution, and removing the NaSH-containing liquid solution from the gas stream. The alkaline liquid is sodium hydroxide. The NaSH-containing liquid solution is passed to an evaporator so as to form a solution having a NaSH concentration of no less than twenty percent. The H2S-containing gas stream is passed to an inlet of an eductor. The alkaline liquid is also passed to another inlet to the eductor. The alkaline liquid and the H2S-containing gas stream are mixed within the eductor. A centrifugal separator is used so as to separate the NaSH-containing liquid solution from the reacted gas stream.

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