Acid gas fractionation process

Details Acid gas fractionation process Acid gas fractionation process

1995-03-27

1996-09-24

Spitzer, Robert

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

95 51, 423229, 423232, B01D 5322, B01D 5314

Patent

active

055586988

ABSTRACT:
Improved processes for treating gas streams containing hydrogen sulfide and carbon dioxide, particularly natural gas streams. The processes rely on the availability of a membrane that maintains high hydrogen sulfide/methane selectivity and adequate hydrogen sulfide/carbon dioxide selectivity when measured with multicomponent gas mixtures at high pressure. The processes have three steps: an acid gas removal step, to remove both hydrogen sulfide and carbon dioxide from the primary gas stream; a membrane fractionation step, to separate hydrogen sulfide from carbon dioxide and create a highly hydrogen-sulfide-concentrated fraction; and a sulfur-fixing step.

REFERENCES:
patent: 3534528 (1970-10-01), Porter
patent: 3911080 (1975-10-01), Mehl et al.
patent: 4117079 (1978-09-01), Bellows
patent: 4130403 (1978-12-01), Cooley et al.
patent: 4147754 (1979-04-01), Ward, III
patent: 4370150 (1983-01-01), Fenstermaker
patent: 4374657 (1983-02-01), Schendel et al.
patent: 4466946 (1984-08-01), Goddin, Jr. et al.
patent: 4493716 (1985-01-01), Swick
patent: 4561864 (1985-12-01), Klass et al.
patent: 4589896 (1986-05-01), Chen et al.
patent: 4597777 (1986-07-01), Graham
patent: 4606740 (1986-08-01), Kulprathipanja
patent: 4608060 (1986-08-01), Kulprathipanja
patent: 4659343 (1987-04-01), Kelly
patent: 4737166 (1988-04-01), Matson
patent: 4750918 (1988-06-01), Sirkar
patent: 4781733 (1988-11-01), Babcock et al.
patent: 4824443 (1989-04-01), Matson et al.
patent: 4857078 (1989-08-01), Walter
patent: 4963165 (1990-10-01), Blume et al.
patent: 5096592 (1992-03-01), Schucker
patent: 5281254 (1994-01-01), Birbara et al.
patent: 5306476 (1994-04-01), Jalan et al.
patent: 5326385 (1994-07-01), Rajani et al.
patent: 5332424 (1994-07-01), Rao et al.
patent: 5401300 (1995-03-01), Lokhandwala et al.
patent: 5407466 (1995-04-01), Lokhandwala et al.
patent: 5407467 (1995-04-01), Lokhandwala et al.
W. J. Schell et al., "Separation of Co2 from Mixtures by Membrane Permeation", Gas Cond. Conf, Univ of Oklahoma, Mar. 1983.
W. J. Schell et al., "Spiral-Wound Permeators for Purification and Recovery", Chem Eng. Progress, Oct. 1982, pp. 33-37.
N. N.-Li et al., "Membrane Sparation Process in the Petrochemical Industry", Phase II Report Dept of Energy, Sep. 1987, pp. 1-12, 17-22.
E. W. Funk et al., "Effect of Impurities on Cellulose Acetate Membrane Performance", Recent Adv. in Separation Tech. AIChE Symposium Series, 250, vol. 82, 1986.
A. B Coady et al., "CO2 Recovery by Gas permeation", Chem Eng. Progress Oct. 1982, pp. 44-49.
F. G. Russell, "Applications of the DELSEP Membrane System", Chem Engineering Progress, Oct. 1984, pp. 48-52.
D. Parro, "Membrane CO2 Separation", Energy Progress, vol. 5, No. 1, Mar. 1985, pp. 51-54.
G. Cutler et al., "Large Scale CO2 Recovery with Membranes", Gas Cond. Conference, 1985.
T. E. Cooley et al., "Field Tests Show Membrane Processing Attractive" Chem. Engineering Progress, Oct. 1985, pp. 45-50.
G. Markiewicz, "Separex Membrane Systems: The Economical Solution to Gas Treating Problems", Gas Processor's Assoc Mtg, Jan. 1988.
D. J. Stookey et al., "Natural Gas Processing with PRISM Separators", Environmental Progress, vol. 3, No. 3, Aug. 1984, pp. 212-214.
W. H. Mazur et al., "Membranes for Natural Gas Sweetening CO2 Enrichment", Chem Eng. Progress, Oct. 1982, pp. 38-43.
M. D. Donahue et al., "Permeation behavior of carbon dioxide-methane Mixtures in cellulose acetate membranes", Journal Membrane Science No. 42, 1989 pp. 197-214.
A. Deschamps et al., "Development of Gaseous Permeation Membranes adapted to the Purification of Hydrocarbons", IIF-IIR Comm A3, Paris, 1989.
D. L. Ellig et al., "Concentration of Methane from Mixtures with Carbon Dioxide by Permeation through Polymeric Films", Journal of Membrane Science, 6, 1980 pp. 259-263.
B. D. Bhide et al., "Membrane processes for the removal of acid gases from natural gas. Process configurations and optimization of operating conditions." Journal Memb. Science, 81, 1993 pp. 209-237.
B. D. Bhide et al., "Membrane processes for the removal of acid gases from natural gas. Effects of operating conditions, economic parameters and membrane properties" Journal Memb Sc., 81, 1993, pp. 239-252.
H. E. Johnson et al., "Assessment of the Potential for Refinery Applications of Inorganic Membrane Technology" Final Report to Dept of Energy, May, 1993, pp. 2-1, 5-9, 5-10, 5-12, appx. B, p. 7.

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