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1. 发明申请

US20100292524A1 METHANE RECOVERY FROM A LANDFILL GAS 失效
标题翻译：甲烷从天然气回收
公开(公告)号：US20100292524A1
公开(公告)日：2010-11-18
申请号：US12160812
申请日：2007-01-09
申请人： Andrew Derek Turner , Richard John Lileystone , George Cutts
发明人： Andrew Derek Turner , Richard John Lileystone , George Cutts
IPC分类号： C07C7/11 , C07C7/00 , C07C7/144 , B01D53/02
CPC分类号： F28D7/16 , B01D2258/05 , C10L3/08 , C10L3/10 , C10L3/102 , F28F9/0275 , F28F13/06 , Y02E50/346
摘要： 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 H2S; 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 fibre 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.
摘要翻译：提供了一种从垃圾填埋气和其他厌氧消化器回收甲烷的方法。该方法包括以下步骤：首先处理进料气体以除去H 2 S; 随后压缩气体; 然后处理气体以除去进一步的杂质。另外，提供了一种用于降低气流温度的冷却器。冷却器包括：布置成被冷却的壳体，穿过壳体的多个孔，气体在使用中流动并与壳体一起形成热交换器，每个孔的切向入口用于产生螺旋在使用中通过孔的气体流动。此外，提供了使用包括两个中空纤维气体/液体接触器的可逆气体吸收器单元来净化气体进料的方法，每个中空纤维气体/液体接触器被布置成提供逆流。该方法包括：使用能够与要除去的气体形成加合物的可逆吸收器在第一接触器中建立分压梯度，将进料气体引入第一接触器，形成待吸收气体的加合物，加压到第二接触器，向第二接触器提供冲洗逆流以释放气体，并将可逆吸收体重新循环到第一接触器。

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