2011•Xiandai huagongRequires access
Study on separating and purifying landfill gas
Haibin Li
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Abstract
Amine solution can be used as reagent for recovery of CO2 from landfill gas.This study focuses on ethanolamine(MEA),diethanolamine(DEA),triethanolamine(TEA) which are used in removal of CO2 from landfill gas by the adsorpsion and the regeneration of solvent for recycling CO2.The effects of influencing factors on both the absorption and regeneration properties are investigated by evaluating experimental curves and characteristic index.It is found that absorbent concentration and operating conditions such as temperature,gas-liquid contacting way,heat transfer efficiency,have different effect on performance of absorption and regeneration.The amine solution adsorbs CO2 in the following order:MEADEATEA.However,the regeneration presents the opposition under the same conditions,