Method of separating aliphatically unsaturated hydrocarbons by contacting said hydrocarbons with a solid water-insoluble, semi-permeable film membrane
Abstract
Abstract THERE IS DESCRIBED THE SEPARATION OF ALIPHATICALLY-UNSATURATED HYDROCARBONS FROM GASEOUS MIXTURES BY THE COMBINED USE OF FLOODED-CELL, LIQUID BARRIER PERMEATION AND METAL COMPLEXING TECHNIQUES. THE LIQUID BARRIER IS DISPOSED AS A CONTINUOUS, DISTINCT LIQUID PHASE IN CONTACT WITH A FILM MEMBRANE, AND THE BARRIER CONTAINS COMPLEXFORMING METAL IONS IN AQUEOUS SOLUTION. THE HYDROCARBON FEED GAS IS CONTACTED WITH THE LIQUID BARRIER CONTAINING A SURFACE-ACTIVE AGENT IN SOLUTION IN THE LIQUID BARRIER. THE SURFACE AGENT SERVES TO IMPROVE THE SELECTIVITY OF THE SEPARATION. THE METAL IONS IN THE LIQUID BARRIER MAY BE, FOR EXAMPLE, NOBLE METAL, NICKEL, MERCURIC, CUPROUS OR OTHER METAL IONS, AND MIXTURES OF THE METAL IONS, WITH OR WITHOUT OTHER CATIONS, MAY BE USED. THE SEPARATION OF ETHYLENE FROM ETHANE AND METHANE IS OF PARTICULAR INTEREST.
Inventors
- 👤 E Steigelmann
- 👤 R Hughes
Bibliographic Details
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