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公开(公告)号:US06238460B1
公开(公告)日:2001-05-29
申请号:US09277306
申请日:1999-03-26
申请人: Shuguang Deng , Ravi Kumar , Martin Bülow , Frank R. Fitch , Adeola Florence Ojo , Craig S. Gittleman
发明人: Shuguang Deng , Ravi Kumar , Martin Bülow , Frank R. Fitch , Adeola Florence Ojo , Craig S. Gittleman
IPC分类号: B01D53049
CPC分类号: B01D53/02 , B01D53/047 , B01D53/261 , B01D2253/104 , B01D2253/108 , B01D2253/1085 , B01D2256/22 , B01D2259/40052 , B01D2259/416 , Y02C10/08
摘要: Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using a two layer adsorption system, wherein the first layer contains activated alumina and the second layer is a zeolite or a combination of zeolites having a silicon to aluminum atomic ratio of at least 1.5. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.
摘要翻译: 通过使用双层吸附系统对气体进行变压吸附过程,基本上所有的二氧化碳从含有高达约1体积%二氧化碳的气体中除去,其中第一层含有活性氧化铝,第二层为 硅铝原子比至少为1.5的沸石或沸石的组合。 该方法特别适用于在空气进行低温蒸馏之前基本上除去空气中所含的二氧化碳和水蒸气。