Battelle Memorial Institute

Scot D Rassat

Ward E TeGrotenhuis

Robert S Wegeng

Victoria S Stenkamp

Dean W Matson

M Kevin Drost

Vilayanur Venkataraman Viswanathan

Kevin Drost

Vilayanur V Vishwanathan

The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. Advantages of the invention include the ability to use (typically) 30-100 times less adsorbent compared to conventional systems.

Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption

A microchannel contactor and methods of contacting substances in microchannel apparatus are described. Some preferred embodiments are combined with microchannel heat exchange.

Methods of contacting substances and microsystem contactors

The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. In another aspect, the apparatus or methods utilize heat exchange channels of varying lengths that have volumes controlled to provide equal heat fluxes. Methods of fuel cell startup are also described. Advantages of the invention include the ability to use (typically) 30-100 times less adsorbent compared to conventional systems.

Method and apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption

Method for thermal swing adsorption and thermally-enhanced pressure swing adsorption

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Benton City, WA, United States of America

Scot D Rassat