发明授权
- 专利标题： Recovery of methane from land fill gas
- 专利标题（中）： 从填埋气中回收甲烷
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申请号： US92746申请日： 1987-09-03
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公开(公告)号： US4770676A公开(公告)日： 1988-09-13
- 发明人: Shivaji Sircar , Ravi Kumar , William R. Koch , John VanSloun
- 申请人： Shivaji Sircar , Ravi Kumar , William R. Koch , John VanSloun
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： C10L3/10
- IPC分类号： C10L3/10 ; B01D53/04 ; B01D53/047 ; C07C7/12
摘要：
High purity methane and carbon dioxide are recovered from landfill gas in an integrated multi-column adsorption system having a temperature swing adsorption section (TSA) for pretreatment of the crude landfill gas to remove trace impurities therefrom, the thus cleaned gas being fed to a pressure swing adsorption section (PSA) for bulk separation of CO.sub.2 from methane. Regeneration of the impurity-laden adsorbent bed of the TSA section is carried out using part of the CO.sub.2 product gas recovered from the PSA section which gas is heated to thermal regeneration temperature.
公开/授权文献
- USD427661S Wall-mount shower head with face plate 公开/授权日：2000-07-04
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