Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Patent
1998-06-22
2000-03-21
Spitzer, Robert H.
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
95 50, 95 52, 96 11, 55524, 55DIG5, B01D 5322
Patent
active
060397926
ABSTRACT:
The present invention relates to an improved method and apparatus for separating one or more condensable compounds from a mixture of two or more gases of differing volatilities by capillary fractionation in a membrane-type apparatus, and a method of forming porous structures therefor. More particularly, the invention includes methods of forming and using an apparatus consisting, at least in part, of a porous structure having capillary-type passages extending between a plurality of small openings on the first side and larger openings on a second side of the structure, the passages being adapted to permit a condensed liquid to flow therethrough substantially by capillary forces, whereby vapors from the mixture are condensed, at least in part, and substantially in and adjacent to the openings on the first side, and are caused to flow in a condensed liquid state, substantially in the absence of vapor, from the openings on the first side to the openings on the second side.
REFERENCES:
patent: 3022187 (1962-02-01), Eyraud et al.
patent: 3511031 (1970-05-01), Ketteringham et al.
patent: 3717525 (1973-02-01), Bultemann
patent: 4583996 (1986-04-01), Sakata et al.
patent: 4689150 (1987-08-01), Abe et al.
patent: 4746341 (1988-05-01), Komoda
patent: 4784880 (1988-11-01), Coplan et al.
patent: 4865630 (1989-09-01), Abe
patent: 4971696 (1990-11-01), Abe et al.
patent: 5057641 (1991-10-01), Valus
patent: 5104425 (1992-04-01), Rao et al.
patent: 5198006 (1993-03-01), Mimori et al.
patent: 5236474 (1993-08-01), Schofield et al.
patent: 5238569 (1993-08-01), Soria et al.
patent: 5250184 (1993-10-01), Maier
patent: 5256295 (1993-10-01), Baker et al.
patent: 5318688 (1994-06-01), Najjar et al.
patent: 5358553 (1994-10-01), Najjar et al.
patent: 5415891 (1995-05-01), Liu et al.
patent: 5487774 (1996-01-01), Peterson et al.
patent: 5582735 (1996-12-01), Mancusi, III et al.
patent: 5611842 (1997-03-01), Friesen et al.
patent: 5702503 (1997-12-01), Tang
patent: 5716527 (1998-02-01), Deckman et al.
patent: 5843209 (1998-12-01), Ray et al.
R. Ash et al--"Flow of Adsorbable Gases and Vapours in a Microporous Medium; I. Single Sorbates"; Proc. Roy. Soc.; vol. 271; Jan. 1, 1963, pp. 1-17.
R. Ash et al--"Flow of Adsorbable Gases and Vapours in a Microporous Medium; II. Binary Mixtures"; Proc. Roy. Soc.; vol. 271, Jan. 1, 1963, pp. 20-33.
H. Rhim et al--"Transport of Capillary Condensate"; Journal of Colloid and Interface Science, vol. 52, No. 1 Jul. 1975; pp. 174-181
M. Asaeda et al--"Separation of Alcohol/Water Gaseous Mixtures by Thin Ceramic Membrane"; Journal of Chemical Engineering of Japan; vol. 19. No. 1, 1986; pp. 72-77.
D. P. Sperry et al--"Methanol-Hydrogen Separation by Capillary Condensation in Inorganic Membranes"; Journal of Membrane Science, 60 (1991) pp. 185-193; Elsevier Science Publishers B.V., Amsterdam.
R. J. R. Uhlhorn et al--"Gas Transport and Separation With Ceramic Membranes; Part I. Multilayer Diffusion and Capillary Condensation"; Journal of Membrane Science, 66 (1992) pp. 259-269; Elsevier Science Publishers B.V., Amsterdam.
M. B. Rao et al--"Nanoporous Carbon Membranes for Separation of Gas Mixtures by Selective Surface Flow"; Journal of Membrane Science, 85 (1993) pp. 253-264; Elsevier Science Publishers B.V., Amsterdam.
D. J. Devlin et al--"Membrane Systems for Energy Efficient Separation of Light Gases"; Advanced Industrial Materials (AIM) Program; Annual Progress Report; FY 1996 Published Apr. 1997.
Archuleta Tom
Calamur Narasimhan
Carrera Martin E.
Devlin David J.
Jerome Frederick S.
Kanady Mary Jo
Oliver Wallace L.
Regents of the University of California and BP Amoco Corporation
Spitzer Robert H.
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