Gas separation: processes – Liquid contacting – And degasification of a liquid
Reexamination Certificate
2006-12-12
2006-12-12
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
Liquid contacting
And degasification of a liquid
C095S204000, C095S235000, C095S236000, C423S220000
Reexamination Certificate
active
07147691
ABSTRACT:
The arrangements described herein are based upon a theory of selective absorption of hydrogen sulphide over carbon dioxide from gas based on countercurrent contact between gas and tertiary or other amines which exhibit preferential affinity for H2S over CO2primarily because of differential rates of absorption of the two gases. The process of enhanced selective absorption is accomplished by performing the absorption in two steps. The first operation is to contact lean amine with sour gas which contains both H2S and CO2. The object of the first operation is to produce an overhead gas that meets an arbitrary standard for content of H2S and CO2. The second operation is to enhance the selectivity for H2S by contacting the rich amine leaving the first operation with a second gas which is a highly concentrated acid gas having a higher H2S/CO2ratio than the first acid gas.
REFERENCES:
patent: 3435590 (1969-04-01), Smith
patent: 3851041 (1974-11-01), Eickmeyer
patent: 4241032 (1980-12-01), Werner et al.
patent: 4406868 (1983-09-01), Carter et al.
patent: 4483834 (1984-11-01), Wood
patent: 4557911 (1985-12-01), Goddin et al.
patent: 4568364 (1986-02-01), Galstaun et al.
patent: 4591370 (1986-05-01), Gazzi et al.
patent: 4773921 (1988-09-01), Elgue et al.
patent: 4976935 (1990-12-01), Lynn
patent: 5556606 (1996-09-01), Khanmamedov
patent: 1551692 (1979-08-01), None
1058238 Alberta Ltd.
Battison Adrian D.
Dupuis Ryan W.
Lawrence Frank M.
Williams Michael R.
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