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公开(公告)号:US5647227A
公开(公告)日:1997-07-15
申请号:US608707
申请日:1996-02-29
申请人: Kaaeid Lokhandwala
发明人: Kaaeid Lokhandwala
CPC分类号: F25J3/0257 , B01D53/228 , B01D53/229 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J2205/40 , F25J2205/80 , F25J2220/60 , F25J2220/64 , F25J2220/66 , F25J2240/12 , Y10S62/927
摘要: A membrane separation process combined with a cryogenic separation process for treating a gas stream containing methane, nitrogen and at least one other component. The membrane separation process works by preferentially permeating methane and the other component and rejecting nitrogen. The process is particularly useful in removing components such as water, carbon dioxide or C.sub.3+ hydrocarbons that might otherwise freeze and plug the cryogenic equipment.
摘要翻译: 一种膜分离方法与用于处理含有甲烷,氮气和至少一种其它组分的气流的低温分离方法结合。 膜分离过程优先渗透甲烷和其他成分并排除氮气。 该方法特别可用于去除可能会冷冻和堵塞低温设备的组分,例如水,二氧化碳或C3 +烃。
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公开(公告)号:US20050217479A1
公开(公告)日:2005-10-06
申请号:US10817085
申请日:2004-04-02
申请人: Patrick Hale , Kaaeid Lokhandwala
发明人: Patrick Hale , Kaaeid Lokhandwala
CPC分类号: C01B23/0042 , B01D53/228 , B01D2257/11 , C01B2210/0031
摘要: Processes for recovering helium from reject gas streams of various types that arise during natural gas processing. The processes include a membrane gas separation step. The reject gas stream is treated in the membrane separation step to yield a helium-enriched permeate stream and a helium-depleted residue stream. The permeate stream is sent for further helium separation or purification in the gas plant or at another facility or sold as crude helium. The residue stream is discharged from the process to a vent line, fuel line, purge line or the like.
摘要翻译: 在天然气处理过程中产生的各种类型的废气流回收氦气的方法。 该方法包括膜气体分离步骤。 在膜分离步骤中处理废气流以产生富氦的渗透物流和氦贫的残余物流。 输送渗透物流进一步氦气分离或净化在气体工厂或在另一设施或出售为氦原子。 残渣流从过程排出到排气管线,燃油管路,净化管线等。
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公开(公告)号:US20070125537A1
公开(公告)日:2007-06-07
申请号:US11293356
申请日:2005-12-02
申请人: Kaaeid Lokhandwala , Ankur Jariwala
发明人: Kaaeid Lokhandwala , Ankur Jariwala
CPC分类号: B01D53/22 , B01D53/226 , B01D53/227 , B01D53/30 , B01D2257/102 , B01D2257/504 , C10L3/10 , C10L3/102 , Y02C10/10
摘要: A process and equipment for treating natural gas produced by a well that has recently been stimulated, and that contains an undesirably high concentration of the fracturing gas used to stimulate the well. The process involves treating the gas by membrane separation, and provides for control of treatment parameters to compensate for the changing concentration of fracturing gas in the produced gas, as well as changes in gas flow rate.
摘要翻译: 用于处理最近被刺激的井产生的天然气的方法和设备,并且其包含用于刺激井的压裂气体的不期望的高浓度。 该方法包括通过膜分离处理气体,并提供对处理参数的控制以补偿所产生的气体中压裂气体的变化浓度以及气体流速的变化。
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公开(公告)号:US5688307A
公开(公告)日:1997-11-18
申请号:US608706
申请日:1996-02-29
申请人: Ingo Pinnau , Kaaeid Lokhandwala , Phuong Nguyen , Scott Segelke
发明人: Ingo Pinnau , Kaaeid Lokhandwala , Phuong Nguyen , Scott Segelke
IPC分类号: B01D53/22
CPC分类号: B01D53/228 , B01D2257/7022 , Y02C20/20
摘要: A process for separating hydrocarbon gases of low boiling point, particularly methane, ethane and ethylene, from nitrogen. The process is performed using a membrane made from a super-glassy material. The gases to be separated are mixed with a condensable gas, such as a C.sub.3+ hydrocarbon. In the presence of the condensable gas, improved selectivity for the low-boiling-point hydrocarbon gas over nitrogen is achieved.
摘要翻译: 从氮气分离低沸点烃特别是甲烷,乙烷和乙烯的烃气体的方法。 该方法使用由超级玻璃状材料制成的膜进行。 待分离的气体与可冷凝气体如C3 +烃混合。 在可冷凝气体的存在下,实现了对低沸点烃气体对氮气的选择性的改善。
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