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DEVICE AND METHOD FOR REMOVING WATER AND CARBON DIOXIDE FROM A GAS MIXTURE USING PRESSURE SWING ADSORPTION
DEVICE AND METHOD FOR REMOVING WATER AND CARBON DIOXIDE FROM A GAS MIXTURE USING PRESSURE SWING ADSORPTION
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机译:利用压力摆动吸附从气体混合物中去除水和二氧化碳的装置和方法
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摘要
A pressure swing adsorption (PSA) dryer for separating water and carbon dioxide from a gas stream includes two compound adsorbent columns [ 32, 42 ]. 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 [ 38, 48 ] sandwiched between a top layer [ 34, 44 ] and bottom layer [ 36, 46 ] of pure water adsorbent material in each of the columns [ 32, 42].
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