Liquid purification or separation – Casing divided by membrane into sections having inlet – Each section having inlet
Patent
1992-07-29
1994-01-04
Sever, Frank
Liquid purification or separation
Casing divided by membrane into sections having inlet
Each section having inlet
24032178, 24032179, 24032183, 2404941, 2404971, B01D 6310
Patent
active
052757269
ABSTRACT:
An improved spiral wound element for separations is disclosed wherein the improvement comprises using as the feed/retentate space one or more layers of a material having an open cross-sectional area in the range 30 to 70% and as the permeate spacer material at least three layers of material two of which are fine and have an open cross-sectional area of about 10 to 50% surrounding a coarse layer having an open cross-sectional area of about 50 to 90%.
REFERENCES:
patent: 2947687 (1960-08-01), Lee
patent: 2985588 (1961-05-01), Binning et al.
patent: 3305595 (1967-02-01), Paulson
patent: 3367504 (1968-02-01), Westmoreland
patent: 3367505 (1968-02-01), Bray
patent: 3370102 (1968-02-01), Carpenter et al.
patent: 3386583 (1968-06-01), Merten
patent: 3417870 (1968-12-01), Bray
patent: 3489647 (1970-01-01), Kolobow
patent: 3557962 (1971-01-01), Kohl
patent: 3962096 (1976-06-01), Ishu et al.
patent: 4476022 (1984-10-01), Doll
patent: 4568456 (1986-02-01), van Zon
patent: 4650574 (1987-03-01), Hilgendorff et al.
patent: 4769263 (1988-09-01), Bitter
patent: 4814079 (1989-03-01), Schnedier
patent: 4837055 (1989-06-01), Bitter
patent: 4861487 (1989-08-01), Fulk, Jr.
patent: 4935139 (1990-06-01), Davidson et al.
patent: 5034126 (1991-07-01), Reddy et al.
patent: 5049167 (1991-09-01), Castro et al.
patent: 5069793 (1991-12-01), Kaschemakat et al.
"The Separation Potential of Pervaporation--Part 2. Process Design and Economics" Rautenbach et al, J. Memb. Sci 25 (2985) 25-54.
"Separation of Organic Binary Mixtures by Pervaporation" Rautenbach, et al. J. Memb. Sci 7 (1980) 203-223.
"Permeate Pressure Drop Characteristics of Hollow Fiber & Spiral Wound Pervaporation Modules" Gooding et al, Proceedings of 4th International Conf. on Pervap. Proc. In the Chemical Ind., Dec. 3-7, 1989, pp. 262-269.
"Pervaporation and Gas Permeation-Fundamentals of Process Design" Rautenbach et al, Int'l Chemical Engineering vol. 27, #1 (1987) 10-24.
"Novel Device and Process-Design Concepts For Large Scale Membrane Separation of Hydrocarbon Mixtures" Michaels, et al, 7th World Petroleum Congress, vol. IV 1967 21-29.
"Pervaporation in Hollow Fibers Bundles: Some Aspects of Heat & Mass Transfer" Aptel, J. Memb Sci 1 (1976) 283-305.
"Dependence of Diffusive Permeation Rates on Upstream and Downstream Pressures" Shelden, et al, J. Memb. Sci 4 91978) 115-127.
Bray Donald T.
Chen Tan-Jen
de la Cruz Deborah
Feimer Joseph L.
Smith, Jr. Dean L.
Allocca Joseph J.
Exxon Research & Engineering Co.
Sever Frank
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