Patent CA1107659A successfully refreshed from Google Patents.
CA1107659A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Water removal from hydrocarbons by dialysis through cellulose ester membrane
Assignee: DELTA PROJECTS Ltd
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Filing: 1977-08-10
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Granted: 1981-08-25
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Expires: 1997-08-10
Abstract
Abstract ABSTRACT A method for the removal of dissolved water from a liquid hydrocarbon stream containing same involves the employment of a cellulose ester membrane.
Inventors
- 👤 Arthur B. Coady
- 👤 Thomas E. Cooley
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-27 17:19
CPC Classifications
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Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
72 words
A method for the removal of dissolved water from a light liquid hydrocarbon stream at a temperature less than 200°F comprising: exposing one side of a supported cellulose ester membrane with said light liquid hydrocarbon stream containing dissolved water; maintaining a positive differential pressure across said membrane from the feed side to the permeate side; separately removing the permeate stream and the residue of the feed stream from contact with said membrane.
Claim 2
Independent Claim
72 words
A method for the removal of dissolved water from a light liquid hydrocarbon stream at a temperature less than 200°F comprising: exposing one side of a supported cellulose ester membrane with said light liquid hydrocarbon stream containing dissolved water; maintaining a positive differential pressure across said membrane from the feed side to the permeate side; separately removing the permeate stream and the residue of the feed stream from contact with said membrane.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein said membranous material is selected from the group comprising cellulose acetate, cellulous diacetate, cellulose triacetate, cellulose propionate, cellulose butyrate, cellulose cyanoethylate, cellulose methacrylate and mixtures thereof.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said differential pressure is from about 5 psi to about 2475 psi.
Claim 5
Dependent Claim
21 words
The method of claim 3 wherein said cellulose ester membrane is a mixture of cellulose acetate, cellulose diacetate and cellulose triacetate.
References Cited (Backward Citations)
No citation records indexed.
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