Separation of gases
This patent describes the method of separating a gas from a rich charge liquid containing an acid gas. It comprises: maintaining in a description unit a separating layer membrane selected from the group consisting of a membrane of cast vinyl alcohol which has been cross-linked with an aliphatic polyaldehyde containing at least three carbon atoms including those in the aldehyde groups and a membrane of silicone or of silicone-polycarbonate the membrane having a high pressure charge side and a low pressure discharge side; passing into contact with the high pressure charge side of the membrane a rich charge liquid containing gas; maintaining a pressure on the charge side of the membrane in excess of the pressure on the low pressure discharge side of the membrane; recovering from the low pressure discharge side of the membrane the permeate gas; and recovering from the high pressure charge side of the membrane the lean liquid retentate containing less gas than is present in the rich charge liquid.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- US 4889541; A
- Application Number:
- PPN: US 7-214985A
- OSTI ID:
- 6915795
- Resource Relation:
- Patent File Date: 5 Jul 1988
- Country of Publication:
- United States
- Language:
- English
Similar Records
Membrane process for separating gases from gas-liquid charge streams
Membrane process for treating a charge containing dewaxing solvent and dewaxed oil