B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/344
B01D 53/14 (2006.01) C01B 17/04 (2006.01) C01B 17/16 (2006.01)
Patent
CA 1101639
K 6938 A B S T R A C T A method for increasing the hydrogen sulphide concen- tration in an acid gas, the acid gas being supplied to a selective absorber, in which the gas is contacted with an absorbent, which is subsequently supplied to a regenerator, in which gas is liberated from the absorbent, characterized in that a value is determined for the magnitude of the gas stream passing to the absorber; that, if this value is smaller than a predetermined value, a proportion of the liberated gas is passed to a second selective absorber, in which it is contacted with a proportion of the regenerated absorbent originating from the regenerator, which, likewise loaded, is subsequently supplied to the regenerator and that if this value again exceeds a second predetermined value the gas stream to the second absorber is stopped.
293724
Braam Johannes W.t.m.
Verloop Jan
Shell Canada Limited
Smart & Biggar
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