Pressure swing reforming
    61.
    发明授权
    Pressure swing reforming 有权
    压力摆动重整

    公开(公告)号:US07491250B2

    公开(公告)日:2009-02-17

    申请号:US10458399

    申请日:2003-06-10

    摘要: Synthesis gas is produced though a cyclic method where the first step of the cycle includes reforming a hydrocarbon feed over a catalyst to synthesis gas in a first zone of a bed and the second step reheats this first zone. A hydrocarbon feed is introduced to a bed along with CO2 and optionally steam where it is reformed into synthesis gas. The synthesis gas is collected at a second zone of the bed and an oxygen-containing gas is then introduced to this second zone of the bed and combusted with a fuel, thereby reheating the first zone to sufficient reforming temperatures. Additionally, a non-combusting gas can also be introduced to the second zone to move heat from the second zone to the first zone.

    摘要翻译: 通过循环方法制备合成气体,其中循环的第一步骤包括将催化剂上的烃进料在床的第一区中重整为合成气,第二步重新加热该第一区。 将碳氢化合物进料与CO 2和任选的蒸汽一起引入床中,其中它被重整成合成气。 在床的第二区域收集合成气体,然后将含氧气体引入床的该第二区域并与燃料一起燃烧,从而将第一区域再加热至足够的重整温度。 此外,也可以将不燃烧的气体引入到第二区域,以将热量从第二区域移动到第一区域。

    Methanol manufacture using pressure swing reforming
    66.
    发明授权
    Methanol manufacture using pressure swing reforming 有权
    使用压力挥发重整的甲醇制造

    公开(公告)号:US07148261B2

    公开(公告)日:2006-12-12

    申请号:US11011984

    申请日:2004-12-14

    IPC分类号: C07C27/00 C07C1/00

    摘要: A process for producing methanol is described in which a hydrocarbon is steam reformed in a reforming zone, and during the reforming stage, of a cyclic steam reformer having a reforming stage and a regeneration stage, the steam reforming being conducted under conditions effective to produce a first effluent stream containing synthesis gas. Fuel and an oxygen-containing gas are combusted in the regeneration stage of the reformer so as to reheat the reforming zone to a temperature sufficient for the reforming stage and generate a flue gas. At least part of the first effluent stream is contacted with a methanol synthesis catalyst under conditions effective to convert synthesis gas to methanol and form a methanol-containing stream and a tail gas stream comprising unreacted carbon monoxide and hydrogen. At least part of the tail gas stream is recycled as fuel for the regeneration stage of the cyclic steam reformer.

    摘要翻译: 描述了一种生产甲醇的方法,其中烃在重整区中进行蒸汽重整,并且在重整阶段期间,在具有重整阶段和再生阶段的循环蒸汽重整器中,蒸汽重整在有效产生 含有合成气的第一流出物流。 燃料和含氧气体在重整器的再生阶段中燃烧,以便将重整区再加热到足以进行重整阶段的温度并产生烟道气。 在有效地将合成气转化成甲醇并形成含甲醇流和包含未反应的一氧化碳和氢气的尾气流的条件下,将至少部分第一流出物流与甲醇合成催化剂接触。 至少部分尾气流作为循环蒸汽重整器的再生阶段的燃料再循环。

    Methanol manufacture using pressure swing reforming
    67.
    发明申请
    Methanol manufacture using pressure swing reforming 有权
    使用压力挥发重整的甲醇制造

    公开(公告)号:US20050154068A1

    公开(公告)日:2005-07-14

    申请号:US11011984

    申请日:2004-12-14

    IPC分类号: C07C1/24 C07C29/151 C07C27/06

    摘要: A process for producing methanol is described in which a hydrocarbon is steam reformed in a reforming zone, and during the reforming stage, of a cyclic steam reformer having a reforming stage and a regeneration stage, the steam reforming being conducted under conditions effective to produce a first effluent stream containing synthesis gas. Fuel and an oxygen-containing gas are combusted in the regeneration stage of the reformer so as to reheat the reforming zone to a temperature sufficient for the reforming stage and generate a flue gas. At least part of the first effluent stream is contacted with a methanol synthesis catalyst under conditions effective to convert synthesis gas to methanol and form a methanol-containing stream and a tail gas stream comprising unreacted carbon monoxide and hydrogen. At least part of the tail gas stream is recycled as fuel for the regeneration stage of the cyclic steam reformer.

    摘要翻译: 描述了一种生产甲醇的方法,其中烃在重整区中进行蒸汽重整,并且在重整阶段期间,在具有重整阶段和再生阶段的循环蒸汽重整器中,蒸汽重整在有效产生 含有合成气的第一流出物流。 燃料和含氧气体在重整器的再生阶段中燃烧,以便将重整区再加热到足以进行重整阶段的温度并产生烟道气。 在有效地将合成气转化成甲醇并形成含甲醇流和包含未反应的一氧化碳和氢气的尾气流的条件下,将至少部分第一流出物流与甲醇合成催化剂接触。 至少部分尾气流作为循环蒸汽重整器的再生阶段的燃料再循环。

    Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gas
    69.
    发明授权
    Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gas 失效
    分布式注入催化部分氧化工艺和生产合成气的设备

    公开(公告)号:US06267912B1

    公开(公告)日:2001-07-31

    申请号:US08845700

    申请日:1997-04-25

    IPC分类号: C07C102

    摘要: A novel injector/reactor apparatus and an efficient process for the partial oxidation of light hydrocarbon gases, such as methane, to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Sources of a light hydrocarbon gas, such as methane, and oxygen or an oxygen-containing gas are preheated and pressurized and injected through an injector means at high velocity into admixture with each other in the desired relative proportions, at a plurality of mixing nozzles which are open to the catalytic partial oxidation reaction zone and are uniformly-spaced over the face of the injector means, to form a reactant gaseous premix having a pressure drop equal to at least about 3% of the lowest upstream pressure of either of said gases. The gaseous premix is injected in a time period which is less than its autoignition time, preferably less than 9 milliseconds, at a velocity between about 25 to 1000 feet/second, into a catalytic partial oxidation zone so that the gaseous premix reacts in the presence of the fixed catalyst to reduce the amounts of CO2, H2O and heat produced by the partial oxidation reaction, to form a useful syngas which is cooled and recovered.

    摘要翻译: 一种新颖的注射器/反应器装置以及用于部分氧化轻质烃气体(例如甲烷)的有效方法,以将这种气体转化成有用的合成气以用于回收和/或随后的烃合成。 来自诸如甲烷和氧气或含氧气体的轻质烃气体在多个混合喷嘴处被预热和加压并通过喷射器装置以高速度以所需的相对比例彼此混合, 对催化部分氧化反应区开放,并且在喷射器装置的表面上均匀间隔开,形成具有等于任一气体的最低上压压力的至少约3%的压降的反应物气态预混物。 将气体预混物在小于其自燃时间(优选小于9毫秒)的时间内以约25至1000英尺/秒的速度注入到催化部分氧化区中,使得气态预混物在存在下反应 的固定催化剂以减少CO 2,H 2 O的量和由部分氧化反应产生的热量,以形成冷却和回收的有用的合成气。