Durable adsorbent material and adsorbent packs and method of making same
First Claim
1. A system for pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA), comprising a parallel passage contactor structure comprising one or more self-supported adsorbent sheets arranged in multiple, overlapping layers mechanically spaced to allow gas flow between said layers from one end of the structure to the other, wherein said one or more adsorbent sheets are formed by a thermally induced phase separation process from a mixture comprising adsorbent particles selected from molecular sieves, activated alumina, zeolites, and activated carbon;
- and a polymer binder;
wherein the adsorbent particles in said sheet are of one or more types and each type of adsorbent particles have a mean particle size of greater than 200 nm;
wherein said binder comprises 0.5% to 5% by weight of the sheet.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided herein are a parallel passage contractors, which may be useful in pressure swing adsorption (PSA), pressure and temperature swing adsorption (PTSA), or vacuum pressure swing adsorption (VPSA) systems, having one or more self-supported adsorbent sheets arranged in multiple, overlapping layers mechanically spaced to allow gas flow. Also provided are systems utilizing such parallel passage contactors and methods for preparing the contactors.
-
Citations
24 Claims
-
1. A system for pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA), comprising a parallel passage contactor structure comprising one or more self-supported adsorbent sheets arranged in multiple, overlapping layers mechanically spaced to allow gas flow between said layers from one end of the structure to the other, wherein said one or more adsorbent sheets are formed by a thermally induced phase separation process from a mixture comprising adsorbent particles selected from molecular sieves, activated alumina, zeolites, and activated carbon;
- and a polymer binder;
wherein the adsorbent particles in said sheet are of one or more types and each type of adsorbent particles have a mean particle size of greater than 200 nm;
wherein said binder comprises 0.5% to 5% by weight of the sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- and a polymer binder;
-
13. A parallel passage contactor structure configured for use in pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA), comprising one or more self-supported adsorbent sheets arranged in multiple, overlapping layers mechanically spaced to allow gas flow between said layers from one end of the structure to the other, wherein said one or more adsorbent sheets are formed by a thermally induced phase separation process from a mixture comprising adsorbent particles selected from molecular sieves, activated alumina, zeolites, and activated carbon, a polymer binder, and aramid or carbon reinforcement fibers, which have a mean length of no more than 500 um on their longest side;
- wherein said binder comprises 0.5% to 5% by weight of the sheet and said reinforcement fibers comprise 0.1% to 10% by weight of the sheet.
- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification