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公开(公告)号:US4770676A
公开(公告)日:1988-09-13
申请号:US92746
申请日:1987-09-03
申请人: Shivaji Sircar , Ravi Kumar , William R. Koch , John VanSloun
发明人: Shivaji Sircar , Ravi Kumar , William R. Koch , John VanSloun
IPC分类号: C10L3/10 , B01D53/04 , B01D53/047 , C07C7/12
CPC分类号: B01D53/0462 , B01D53/047 , C07C7/12 , B01D2256/22 , B01D2256/24 , B01D2258/05 , B01D2259/40003 , B01D2259/40064 , B01D2259/40079 , B01D2259/40081 , B01D2259/4009 , B01D2259/402 , B01D2259/403 , B01D2259/404 , Y02C10/08 , Y02E50/346 , Y02P20/152
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.
摘要翻译: 在具有用于预处理粗填埋气体以从其中除去痕量杂质的变温吸附段(TSA)的综合多塔吸附系统中,从填埋气体回收高纯度甲烷和二氧化碳,将这样清洁的气体供给到压力 挥发吸附段(PSA),用于从甲烷中大量分离二氧化碳。 使用从PSA部分回收的部分CO 2产物气体再次将TSA部分的杂质负载吸附床再次加热至热再生温度。