51
Cary V Sorensen, Jeffrey R Bailey: Landfill gas purification method and system. Manufactured Methane Corporation, Luedeka Neely Group P C, July 9, 2013: US08480789 (4 worldwide citation)

The present disclosure provides a method for separating and purifying a landfill gas stream. In one embodiment, the method includes a step of collecting a crude landfill gas stream which includes at least methane, carbon dioxide, oxygen, and nitrogen gases. The method also includes a step of separat ...


52
David Vonasek: Method and apparatus for disposal of landfill gas condensate. Emcon, Paul L Griffiths, January 16, 1996: US05484279 (4 worldwide citation)

A method and apparatus for the on-site disposal of landfill gas (LFG) condensate is disclosed. Any contaminants in the condensate are incinerated in an LFG flare. The LFG condensate is first pressurized and then injected, in an atomized state, into a combustion zone of the LFG flare. The LFG condens ...


53
Nazim Z Muradov, Franklyn Smith, Ali Tabatabaie Raissi: Process for hydrogen production via integrated processing of landfill gas and biomass. University of Central Florida Research Foundation, Brian S Steinberger, Joyce Morlin, Law Offices of Brian S Steinberger P A, April 6, 2010: US07691182 (4 worldwide citation)

Hydrogen production is provided via integrated closed-loop processing of landfill gas (LFG) and solid biomass feedstocks such as various agricultural wastes with minimal environmental impact. LFG is purified of harmful contaminants over a bed of activated charcoal (AC) and is catalytically reformed ...


54
Cunping Huang, Nazim Muradov, Ali T Raissi: Method for zero emission liquid hydrogen production from methane and landfill gas. Research Foundation of the University of Central Florida, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, February 19, 2008: US07332146 (4 worldwide citation)

Processes, methods, systems and devices for zero emission liquid hydrogen production directly from a variety of methane sources, such as natural gas and landfill gas, are disclosed. Five embodiments of plant designs for liquid hydrogen production are presented. The embodiments combine hydrogen produ ...


55
Ronald L Brookshire, Travis Brookshire: Flow metering device for landfill gas extraction well. EFG & E International, John L Rogitz, July 15, 2003: US06591695 (4 worldwide citation)

A coupling having an integral orifice plate engages upstream and downstream segments of a landfill piping system. Upstream and downstream ports are respectively formed through the walls of the coupling adjacent the orifice plate. The difference in pressure at the ports is correlated to a flow rate t ...


56
Charles D Elkins: Portable gas monitor. Elkins Earthworks, Fay Sharpe, Brian E Turung, May 1, 2012: US08168121 (3 worldwide citation)

A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communication wirelessly with one another. The control unit and/or measuring unit can includes a heating arrangement to increase the temperature of ...


57
Douglas R Casella: Systems and methods for treating landfill gas using landfill leachate. Casella Waste Systems, Wilmer Cutler Pickering Hale and Dorr, October 16, 2012: US08287625 (3 worldwide citation)

Embodiments of the present invention are directed to systems and methods for treating landfill gas using landfill leachate. In one embodiment of the present invention, a method includes receiving landfill leachate from at least one of a plurality of sources, and pretreating the landfill leachate to ...


58
Stefan Stamoulis: Tool for enhancing the extraction of landfill gas. Boulware & Valoir, November 1, 2011: US08047276 (3 worldwide citation)

An apparatus and method to internally provide apertures inside polyvinyl chloride (PVC), high density polyethylene (HDPE), or any polymeric pie, plastic pipe-riser (blank casing) in existing landfill gas recovery wells (extraction wells) that have been installed at Municipal Solid Waste Facilities a ...


59
Stefan Stamoulis: Method for extracting landfill gas. Boulware & Valoir, March 19, 2013: US08398335 (3 worldwide citation)

An apparatus and method to internally provide apertures inside polyvinyl chloride (PVC), high density polyethylene (HDPE), or any polymeric pie, plastic pipe-riser (blank casing) in existing landfill gas recovery wells (extraction wells) that have been installed at Municipal Solid Waste Facilities a ...


60
Raymond Seegers, Steve Meyer: In-situ landfill gas well perforation method and apparatus. Waste Management, McDonnell Boehnen Hulbert & Berhgoff, June 17, 2008: US07387163 (3 worldwide citation)

The present invention relates to a method and apparatus for perforating a landfill gas well in situ. The invention allows for improved recovery of gas from a gas well without the danger of explosion.



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