Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1987-12-01
1989-08-01
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 68, 55158, 65 5, 65 31, B01D 5322
Patent
active
048530018
ABSTRACT:
A hollow, porous, silica-rich fiber and a process for separating at least one gas from a gaseous mixture utilizing the hollow, porous, silica-rich fiber result in gas separations with good permeability and good selectivity. The hollow, porous, silica-rich fiber is non-crystalline and has pore sizes having a range of 1 to around 50 Angstroms in diameter and a mean pore size of around 5 to 50 Angstroms in diameter and a filament diameter in the range of 1 to around 250 microns and wall thickness in the range of around 1 to 50 microns. The hollow, porous, silica-rich fibers with a fine pore structure and thin walls are produced by forming hollow glass fibers by attenuation from melt at speeds in the range of 500 ft/min to around 30,000 ft/min and having a non-phase-separated glass composition selected from: a non-phase separable fiberizable glass composition, a phase separable borosilicate having one or more oxides of a metal from Group IVB of the Periodic Table, a phase-separable glass composition with an amount of boron oxide of around 5 weight percent up to around 60 weight percent, and alkali metal oxide silicate glass compositions. The non-heat treated glass fibers are leached to extract acid and/or water soluble components. At least one hollow, porous, silica-rich fiber is used in a device suitable to contain a gaseous mixture and the permeate is withdrawn from the glass fiber from the opposite side from that at which the gaseous mixture contacts the hollow, porous fiber.
REFERENCES:
patent: 2106744 (1938-02-01), Hood et al.
patent: 2215039 (1940-09-01), Hood et al.
patent: 2221709 (1940-11-01), Hood et al.
patent: 2286275 (1942-06-01), Hood et al.
patent: 2461841 (1949-02-01), Nordberg
patent: 2491761 (1949-12-01), Parker et al.
patent: 2494259 (1950-01-01), Nordberg
patent: 2500092 (1950-03-01), Parker et al.
patent: 2635390 (1953-04-01), Parker
patent: 2843461 (1958-07-01), Labino
patent: 3019853 (1962-02-01), Kohman et al.
patent: 3022858 (1962-02-01), Tillyer et al.
patent: 3100868 (1963-08-01), McAfee, Jr.
patent: 3135591 (1984-06-01), Jones
patent: 3184899 (1965-05-01), Frazier
patent: 3258896 (1966-07-01), Muller
patent: 3262251 (1966-07-01), Hicks, Jr.
patent: 3269817 (1966-08-01), Bondley
patent: 3279902 (1966-10-01), Gardner
patent: 3294504 (1966-12-01), Hicks, Jr.
patent: 3416953 (1968-12-01), Gutzeit et al.
patent: 3511031 (1970-05-01), Ketteringham et al.
patent: 3549524 (1970-12-01), Haller
patent: 3567666 (1971-03-01), Berger
patent: 3570673 (1971-03-01), Dutz et al.
patent: 3650721 (1972-03-01), Hammel et al.
patent: 3817764 (1974-06-01), Wolf
patent: 3843341 (1974-10-01), Hammel et al.
patent: 3923533 (1975-12-01), Hammel et al.
patent: 3923688 (1975-12-01), Hammel et al.
patent: 3966481 (1976-06-01), Atkinson et al.
patent: 3972720 (1976-08-01), Hammel et al.
patent: 3972721 (1976-08-01), Hammel et al.
patent: 4042359 (1977-08-01), Schnabel et al.
patent: 4084977 (1978-04-01), Freedman
patent: 4482360 (1984-11-01), Taketomo et al.
patent: 4583996 (1986-04-01), Sakata et al.
Elmer, "Leaching of E-Glass", J. of American Ceramic Society, vol. 67, No. 12, Dec. 1984, pp. 778-782.
Kosting et al., "Gas Permeability of Microporous Glass Membranes", Stekio i Keramika, No. 7, Jul. 1982, pp. 14-15.
Bahat et al., "Hollow Fiber Glass Membrane", J. of Applied Polymer Science, Applied Polymer Symposium, 31, 1977, pp. 389-395.
Kameyama et al., "Differential Permeation of Hydrogen Sulfide through a Microporous Vycor-type Glass Membrane . . . ", Separation Sc. & Tech., 14 (10), 1979, pp. 953-957.
McMillan et al., "Microporous Glasses for Reverse Osmosis", J. of Materials Science 11 (1976) pp. 1187-1199.
Kammermeyer et al., "Effect of Adsorption in Barrier Separation", Industrial Engineering Chemistry, vol. 50, No. 9, Sep. 1958, pp. 1309-1310.
Huckins et al., "The Separation of Gases by Means of Porous Membranes", Chemical Engineering Progress, 49 (4) Apr. 1953, pp. 180-184.
Shindo et al., "Possibility of Adjustment of H.sub.2 /CO ratio in Synthesis Gas by Means of Porous Glass Membranes", Int. J. Hydrogen Energy, vol. 10, No. 1, 1985, pp. 27-30.
Shindo et al., "Gas Diffusion in Microporus Media in Knudsen's Regime", J. Chem. Eng. of Japan, vol. 16, No. 2, 1983, pp. 120-126.
Tsujikawa et al., "Separation of Benzene & Nitrogen by Permeation through Porous Vycor Glass", Kagaku Kogaku Ronbunshu, 11 (5), 1985, pp. 534-541.
Scherer et al., "Stressin Leached Phase-Separated Glass", J. of the American Ceramic Society, vol. 68, No. 8, Aug. 1985, pp. 419-426.
McAfee, Jr., "Helium and Diffusion Separation", Bell Laboratories Record, vol. 39, Oct. 1961, pp. 354-358.
Lee et al., "The Transport of Condensible Vapors Through a Microporous Vycor Glass Membrane", J. Colloid & Interface Science, vol. 110, No. 2, 4/1986, pp. 544-555.
Hwang et al., "Surface Diffusion in Microporous Media", The Canadian Journel of Chem. Eng., Apr. 1966, pp. 82-89.
Shindo et al., "Separation of Gases by means of a Porous Glass Membrane at High Temperatures", J. of Chem. Eng. of Japan, vol. 17, No. 6, 1984, pp. 650-652.
Bledzki et al., "Corrosion Phenomena in Glass Fibers and Glass Fiber Reinforced Thermosetting Resins", Composites Science & Technology 23 (1985) pp. 263-285.
"Porous, Melt-Molded Boric Silica Glass Filters", An Original Developement of the Government Industrial Research Institute, Osaka; p. 13.
"Research on Porous Glass Membranes for Reverse Osmosis", Stanford Research Institute Library, Irvine, CA 92644, Final Report, pp. 45-49 and 54.
Product Brochure entitled, "Fuji Porous Glass Filter" from Fuji Filter.
61-204006, 9/10/86, Japan, Abstract only-
PPG Industries Inc.
Spitzer Robert
Stachel Kenneth J.
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