专利名称：PSA gas purifier and purification process发明人：Frederick Wells Leavitt申请号：US08/73申请日：19961212公开号：US05769928A公开日：19980623
摘要：The invention comprises a PSA gas prepurifier for the removal of contaminantspresent in a feed gas stream. The prepurifier of the invention has a bed of adsorbentmaterial which comprises at least two discrete layers of adsorbents, at least one of theadsorbents being comparatively strong and at least another of the adsorbents beingcomparatively weak.
申请人：PRAXAIR TECHNOLOGY, INC.
代理人：Robert J. Follett
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