Dithiolene functionalized polymer membrane for olefin/paraffin separation
First Claim
1. A fluid separation membrane for separating one or more components from a fluid, the fluid comprising two or more components, wherein the fluid separation membrane comprises at least one polymer and at least one dithiolene having the structure:
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Accused Products
Abstract
A polymeric composite may be used for forming fluid separation membranes. The membranes may be formed from polyimide, polyamide or poly (pyrrolone-imide) materials. Polyamides may be formed by the condensation of a tetraamine, a tetraacid, and a diamine. Polyimides and poly (pyrrolone-imides) may be formed by the cyclization of a polymer precursor. A polymeric composite may include a dithiolene or a mixture of dithiolenes. A polymer matrix incorporating dithiolenes may exhibit an olefin/paraffin solubility selectivity. A solubility selectivity may be between about 1.1 and about 2.0.
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Citations
82 Claims
- 1. A fluid separation membrane for separating one or more components from a fluid, the fluid comprising two or more components, wherein the fluid separation membrane comprises at least one polymer and at least one dithiolene having the structure:
- 23. A fluid separation membrane for separating one or more components from a fluid, the fluid comprising two or more components, wherein the fluid separation membrane comprises at least one polymer and at least one dithiolene having the structure:
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39. A method of preparing a fluid separation membrane for separating one or more components from a fluid, the fluid comprising two or more components, comprising adding at least one dithiolene to at least one polymer, the dithiolene having the structure:
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40-59. -59. (Cancelled)
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60. A method of separating one or more components from a fluid, the fluid comprising two or more components, comprising bringing the fluid stream into contact with a face of a fluid separation membrane, the fluid separation membrane comprising at least one polymer and at least one dithiolene having the structure:
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61-80. -80. (Cancelled)
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81. An apparatus for separating one or more components from a fluid, the fluid comprising two or more components, comprising:
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a body;
a fluid separation membrane disposed within the body, the fluid separation membrane comprising at least one polymer and at least one dithiolene having the structure;
where M is a metal, wherein R1, R2, R3, and R4 are each independently alkyl, CH3, CF3, C6H4OCH3, CN, or where R1 and R2 and/or R3 and R4 combine to form at least one ring;
a fluid stream inlet coupled to the body downstream from the fluid separation membrane;
a first fluid stream outlet positioned upstream from the fluid stream inlet and down stream from the fluid separation membrane; and
a second fluid stream outlet positioned downstream from the fluid separation membrane.
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82-101. -101. (Cancelled)
Specification