07699914 is referenced by 8 patents and cites 48 patents.

A method of using a triple-effect absorption system to recover methane from landfill gas contaminated with CO2 and trace contaminates such as chlorinated hydrocarbons and aromatics involves processing the landfill gas with three absorbers and a flash system. One absorber uses a solvent to absorb the trace contaminants from the landfill gas, the second absorber in conjunction with the flash system extracts CO2 from the gas, and just a first portion of that CO2 is used for stripping the trace contaminates from the solvent in the third absorber. The rest of the extracted CO2 is vented to atmosphere to prevent dampening the combustion of the trace contaminants absorbed by the first portion of CO2.

Title
Triple-effect absorption system for recovering methane gas
Application Number
11/299162
Publication Number
7699914 (B1)
Application Date
December 9, 2005
Publication Date
April 20, 2010
Inventor
David C Morrow
Midland, 79707
TX, US
Paul D Morrow
Midland, 79701
TX, US
Luke N Morrow
Midland, 79705
TX, US
Agent
Robert J Harter
IPC
B01D 53/14
View Original Source