Process for removing a target gas from a mixture of gases by swing adsorption
First Claim
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1. A process for removing a target gas component from a gas mixture containing said target gas component and a second gas component, which process comprises:
- a) conducting said gas mixture to a swing adsorption gas separation unit wherein the gas separation unit contains at least one adsorbent contactor comprising a gas inlet and a gas outlet, wherein the gas inlet and the gas outlet are in fluid connection by a plurality of open flow channels wherein the surfaces of the open flow channels are comprised of an adsorbent material that has a selectivity for said target gas component over said second gas component greater than 5, wherein the contactor has less than about 20% of its open pore volume in pores with diameters greater than about 20 angstroms and less than about 1 micron, and wherein at least a portion of said target gas component is adsorbed into said adsorbent material, thereby resulting in a product stream depleted of said target gas component;
b) collecting said the product stream;
c) desorbing the adsorbed gases from said adsorbent material, thereby resulting in a waste gas stream rich in said target gas component; and
d) collecting said waste gas stream.
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Abstract
The present invention relates the separation of a target gas from a mixture of gases through the use of engineered structured adsorbent contactors in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range.
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Citations
37 Claims
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1. A process for removing a target gas component from a gas mixture containing said target gas component and a second gas component, which process comprises:
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a) conducting said gas mixture to a swing adsorption gas separation unit wherein the gas separation unit contains at least one adsorbent contactor comprising a gas inlet and a gas outlet, wherein the gas inlet and the gas outlet are in fluid connection by a plurality of open flow channels wherein the surfaces of the open flow channels are comprised of an adsorbent material that has a selectivity for said target gas component over said second gas component greater than 5, wherein the contactor has less than about 20% of its open pore volume in pores with diameters greater than about 20 angstroms and less than about 1 micron, and wherein at least a portion of said target gas component is adsorbed into said adsorbent material, thereby resulting in a product stream depleted of said target gas component; b) collecting said the product stream; c) desorbing the adsorbed gases from said adsorbent material, thereby resulting in a waste gas stream rich in said target gas component; and d) collecting said waste gas stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification