The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Jan. 09, 2007
Andrew Derek Turner, Abingdon, GB;
George Cutts, Kenilworth, GB;
Richard John Lilleystone, London, GB;
Andrew Derek Turner, Abingdon, GB;
George Cutts, Kenilworth, GB;
Richard John Lilleystone, London, GB;
Gasrec Limited, London, GB;
Abstract
A process is provided for recovering methane from landfill feed gas and other anaerobic digestors. The process comprising the following steps: firstly treating the feed gas to remove HS; subsequently compressing the gas; and then treating the gas to remove further impurities. Additionally, there is provided a chiller for reducing the temperature of a gas flow. The chiller comprising: a shell arranged to be chilled, a plurality of bores through the shell and through which the gas flows, in use, and forming, together with the shell, a heat exchanger, a tangential inlet to each bore for creating a spiral flow of the gas through the bore, in use. Furthermore, a process is provided for purifying a gas feed using a reversible gas absorber unit comprising two hollow fiber gas/liquid contactors, each of which is arranged to provide a counter-current flow. The process comprising: setting up a partial pressure gradient in the first contactor using a reversible absorber capable of forming an adduct with the gas to be removed, introducing feed gas to the first contactor, forming an adduct of the gas to be absorbed, feeding the adduct to the second contactor, supplying a flushing counter-current flow to the second contactor to liberate the gas, and re-circulating the reversible absorber to the first contactor.