Recovering natural gas liquids from LNG using vacuum distillation
    44.
    发明申请
    Recovering natural gas liquids from LNG using vacuum distillation 失效
    使用真空蒸馏从LNG中回收天然气液体

    公开(公告)号:US20060065015A1

    公开(公告)日:2006-03-30

    申请号:US11211278

    申请日:2005-08-24

    申请人: Michael McCoy

    发明人: Michael McCoy

    IPC分类号: F25J3/00

    摘要: A process for recovering liquefied C3 compounds from a natural gas stream containing C3 compounds which comprises (a) chilling the natural gas stream under conditions sufficient to liquefy the natural gas, whereby a mixture comprising liquid natural gas (LNG) and liquid C3 compounds is formed; (b) fractionating the mixture comprising liquid natural gas (LNG) and liquid C3 compounds in a separation zone under sub-atmospheric pressure and under conditions predetermined to vaporize a significant portion of the natural gas present while retaining the C3 compounds as a liquid fraction; and (c) recovering separately from the separation zone natural gas and liquid C3 compounds.

    摘要翻译: 一种从含有C 3+化合物的天然气流中回收液化的C 3 H 3化合物的方法,其包括(a)在足以液化天然气的条件下冷却天然气流, 从而形成包含液体天然气(LNG)和液体C 3+化合物的混合物; (b)在亚大气压下和预定的条件下,在分离区中将包含液体天然气(LNG)和液体C 3 H 3化合物的混合物分馏以蒸发存在的大部分天然气,同时保持 作为液体馏分的C 3 H 3化合物; 和(c)与分离区分离天然气和液体C 3 N 3化合物。

    Method of purifying and recycling argon
    49.
    发明授权
    Method of purifying and recycling argon 有权
    氩气净化和回收方法

    公开(公告)号:US06685903B2

    公开(公告)日:2004-02-03

    申请号:US09725778

    申请日:2001-03-01

    IPC分类号: C01B2300

    摘要: This invention is directed to a method for purifying argon from an impure argon stream. If the oxygen concentration in the impure argon is less than about 10 mole percent of oxygen, the invention is proceeded in the sequential steps of a) removing chlorine from the impure argon stream; b) adding hydrogen to the impure argon stream; c) removing carbon dioxide and water from the impure argon stream; d) removing hydrogen from the impure argon stream; and e) removing nitrogen from the impure argon stream to form a purified argon stream. If the oxygen concentration in the impure argon is greater than about 10 mole percent of oxygen, the method comprises the sequential steps of a) removing chlorine from the impure argon stream; b) removing carbon dioxide and water from the impure argon stream; c) removing nitrogen and oxygen from the impure argon stream; d) adding hydrogen to the impure argon stream; e) removing water from the impure argon stream; f) removing hydrogen from the impure argon stream; and g) removing nitrogen from the impure argon stream to form a purified stream.

    摘要翻译: 本发明涉及一种从不纯的氩气流中纯化氩气的方法。 如果不纯的氩气中的氧气浓度小于约10摩尔%的氧气,则本发明按照以下顺序进行:a)从不纯的氩气流中除去氯气; b)向不纯的氩气流中加入氢气; c)从不纯的氩气流中除去二氧化碳和水; d)从不纯的氩气流中除去氢; 和e)从不纯的氩气流中除去氮气以形成纯化的氩气流。 如果不纯的氩气中的氧气浓度大于约10摩尔%的氧气,则该方法包括以下顺序步骤:a)从不纯的氩气流中除去氯气; b)从不纯的氩气流中除去二氧化碳和水; c)从不纯的氩气流中除去氮气和氧气; d)向不纯的氩气流中加入氢气; e)从不纯的氩气流中除去水; f)从不纯的氩气流中除去氢; 和g)从不纯的氩气流中除去氮气以形成纯化的物流。