High Flux Mixed Matrix Membranes for Separations
First Claim
1. A process for separating at least one gas from a mixture of gases, the process comprising:
- a) providing a mixed matrix gas separation membrane comprising a porous inorganic filler material dispersed in a continuous phase consisting essentially of an organic microporous polymer which is permeable to said at least one gas;
b) contacting the mixture on one side of the mixed matrix membrane to cause said at least one gas to permeate the mixed matrix membrane; and
c) removing from the opposite side of the membrane a permeate gas composition comprising a portion of said at least one gas which permeated said membrane.
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Abstract
The present invention discloses a new class of high flux mixed matrix membranes that are made by incorporating porous inorganic fillers (e.g. microporous and mesoporous molecular sieves, carbon molecular sieves, porous metal-organic frameworks) into a high flux high surface area microporous organic polymer matrix. These microporous organic polymers are referred to as “polymers of intrinsic microporosity” or PIMs. The high flux membranes are promising for a wide range of separations including liquid separations such as pervaporation of phenol/water and also gas separations in the petrochemical, refinery, and natural gas industries such as methane/carbon dioxide, olefin/paraffin and iso/normal paraffins separations.
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Citations
23 Claims
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1. A process for separating at least one gas from a mixture of gases, the process comprising:
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a) providing a mixed matrix gas separation membrane comprising a porous inorganic filler material dispersed in a continuous phase consisting essentially of an organic microporous polymer which is permeable to said at least one gas; b) contacting the mixture on one side of the mixed matrix membrane to cause said at least one gas to permeate the mixed matrix membrane; and c) removing from the opposite side of the membrane a permeate gas composition comprising a portion of said at least one gas which permeated said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. A mixed matrix membrane comprising a porous inorganic filler material dispersed in a continuous phase consisting essentially of an organic microporous polymer.
Specification