05059405 is referenced by 71 patents and cites 7 patents.

A process and apparatus for removing the impurities from a gas stream produced from a landfill such that essentially pure carbon dioxide and methane is recovered. After the landfill gas is mechanically dewatered, the gas is filtered of particulate solids and aerosols and purified by removing sulfur compounds using zinc oxide columns, removing halogens using activated alumina columns, removing hydrocarbons using activated charcoal columns, and oxidizing remaining impurities using potassium permanganate impregnated activated alumina columns. Lastly the gas is incinerated in a boiler/incinerator combustion furnace to produce an exit stream containing essentially pure carbon dioxide and air, which is further treated in a conventional carbon dioxide treatment process.

Title
Process and apparatus for purification of landfill gases
Application Number
7/282309
Publication Number
5059405
Application Date
December 9, 1988
Publication Date
October 22, 1991
Inventor
Beryl Koplin
Atlanta
GA, US
J Richard Watson
Atlanta
GA, US
Agent
Hurt Richardson Garner Todd & Cadenhead
Assignee
Bio Gas Development
GA, US
IPC
C01B 31/20
B01D 53/34
B01D 53/36
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