发明名称 |
Recovery of methane from land fill gas |
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 CO2 from methane. Regeneration of the impurity-laden adsorbent bed of the TSA section is carried out using part of the CO2 product gas recovered from the PSA section which gas is heated to thermal regeneration temperature.
|
申请公布号 |
US4770676(A) |
申请公布日期 |
1988.09.13 |
申请号 |
US19870092746 |
申请日期 |
1987.09.03 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
SIRCAR, SHIVAJI;KUMAR, RAVI;KOCH, WILLIAM R.;VANSLOUN, JOHN |
分类号 |
C10L3/10;B01D53/04;B01D53/047;C07C7/12;(IPC1-7):B01D53/04 |
主分类号 |
C10L3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|