Edward Borray, Geoff Smith, Gordon Deane: Process and apparatus for purification and compression of raw landfill gas for vehicle fuel. Genesis Energy Systems, Palmer Management Corporation, Thomas I Rozsa, Tony D Chen, March 17, 1998: US05727903 (41 worldwide citation)

A process and apparatus for purification and compression of raw landfill gas stream in a landfill to produce vehicle grade fuel. After the landfill gas stream is extracted and collected, all solids and significant moisture are removed in a pretreatment system prior to compression of the gas stream. ...

Ronald J Spiegel, Richard A Sederquist, John C Trocciola, Herbert C Healy, Roger R Lesieur, Gregory J Sandelli: Landfill gas treatment system. International Fuel Cells, William W Jones, September 19, 1995: US05451249 (38 worldwide citation)

The gas stream which emanates from landfills is treated to produce a purified gas which is essentially a hydrocarbon such as methane which can be used as the fuel source in a fuel cell power plant, or can be used in other power plants which use natural gas as a fuel. The landfill gas passes through ...

Tadeush Krushnevych, Olexander Piatnychko: CO2 separator method and apparatus. Consortium Services Management Group, Charles W Hanor P C, August 16, 2005: US06929680 (34 worldwide citation)

A process for concentrating and recovering methane and carbon dioxide from landfill gas includes absorption of commonly occurring pollutants using a carbon dioxide absorbent which itself may be in situ recoverable constituent. Separated methane is concentrated into a high heating value fuel, and a c ...

Lars Hall: Method of controlling the flow of landfill gas from sanitary landfills and apparatus for performing the method. RAGN SELLSFORETAGEN, Laff Whitesel Conte & Saret, January 2, 1990: US04890672 (28 worldwide citation)

A method of controlling the recovery of landfill gas from a sanitary landfill and apparatus for performing the method. Landfill gas, which mainly consists of methane and carbon dioxide, is formed by anaerobic decomposition of the organic content of the refuse. This process develops a very small amou ...

Sircar Shivaji, Koch William R: Adsorptive separation of gas mixtures.. Air Prod & Chem, March 2, 1988: EP0257493-A1 (28 worldwide citation)

A process is described for separating gas mixtures containing a primary gaseous component and a secondary gaseous component by selective adsorption of the secondary gaseous component in an adsorptive process including the steps of adsorption in at least one adsorbent bed, rinsing said bed with secon ...

Richard C Schmitz, Cris Lombardi, Andre A Simone: Method and apparatus for enhancing plant growth in greenhouses utilizing landfill gas. William C Crutcher, William C Crutcher, March 27, 2001: US06205704 (27 worldwide citation)

An environmentally controlled greenhouse is located near a landfill site and uses the landfill gas to both heat the greenhouse and furnish a clean carbon dioxide enriched product gas to enhance plant growth. The clean CO

William C Crutcher: Greenhouse system with co-generation power supply, heating and exhaust gas fertilization. William C Crutcher, September 10, 2002: US06446385 (27 worldwide citation)

A greenhouse is combined with a gas turbine generator set, wherein power, heat and fertilization products are all supplied to the greenhouse by the gas turbine and its exhaust gas in a balanced system for year-round continuous plant production. The system is preferably located at a landfill along wi ...

Sanjay S Singhvi: Method for treating landfill leachate. Green Environmental Services, Simmons Perrine Albright & Ellwood, August 24, 1993: US05238580 (24 worldwide citation)

An improved method for treating leachate from a sanitary landfill is provided. The method includes the steps of adding a pH adjuster to elevate the pH of the leachate, such that ammonia nitrogen compounds, COD compounds, and VOCs form volatiles and heavy metals form insoluble compounds; combusting l ...

Kevin M Bonzo: Landfill gas capping liner system. Oldham Oldham & Wilson Co, April 27, 1993: US05206067 (23 worldwide citation)

A gas capping liner system is described which encompasses a top channeled component and a bottom perforated layer component. The top channeled component has a plurality of alternating longitudinally extending channels. The channels are of two types, (1) structural for supporting the weight of overbu ...

Lawrence A Siwajek, W Jeffrey Cook, William R Brown: Landfill gas recovery. Acrion Technologies, Pearne Gordon McCoy & Granger, October 28, 1997: US05681360 (23 worldwide citation)

A process for concentrating and recovering methane and carbon dioxide from landfill gas includes absorption of commonly occurring pollutants using a reduced amount of carbon dioxide absorbent which itself may be an in situ derived and recoverable constituent. Separated methane may be concentrated in ...