Mmr Technologies Inc.

Sam Spektor

William A Little

A pressure swing adsorption (PSA) dryer for separating water and carbon dioxide from a gas stream includes two compound adsorbent columns []. Each column comprises a primary adsorption material for adsorbing water and a secondary adsorbent that adsorbs carbon dioxide. The secondary adsorbent comprises a solid amine. The secondary adsorbent may be, for example, a highly porous polystyrene matrix with amine groups bonded to the porous resin structure. Preferably, a mixture of the primary and secondary adsorbent materials forms an intermediate layer [] sandwiched between a top layer [] and bottom layer [] of pure water adsorbent material in each of the columns [

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Campbell, CA, United States of America

Sam Spektor