METAL PASSIVATION OF HEAT-EXCHANGER EXPOSED TO SYNTHESIS GAS
    1.
    发明申请
    METAL PASSIVATION OF HEAT-EXCHANGER EXPOSED TO SYNTHESIS GAS 失效
    接触合成气体的换热器的金属钝化

    公开(公告)号:US20130248770A1

    公开(公告)日:2013-09-26

    申请号:US13821882

    申请日:2011-08-19

    IPC分类号: C01B3/02

    摘要: A process for passivation of surfaces of heat exchange apparatus exposed to a synthesis gas containing carbon monoxide, includes the steps of: adding arsine to the synthesis gas to provide a total As concentration in the synthesis gas in range 0.001 to 10 ppmv, (ii) exposing the mixture of hot synthesis gas and arsine to the shell-side surfaces of said heat exchange apparatus to reduce the interaction between the carbon monoxide present in said gas and metals in said surfaces, (iii) recovering a cooled synthesis gas from the shell-side of said apparatus, and (iv) passing the cooled synthesis gas, optionally after further cooling, through a sorbent bed to remove arsenic compounds from the synthesis gas.

    摘要翻译: 一种暴露于含有一氧化碳的合成气体的热交换装置的表面的钝化方法包括以下步骤:向合成气中加入胂以提供合成气中的总As浓度范围为0.001至10ppmv,(ii) 将热合成气和胂的混合物暴露于所述热交换装置的壳侧表面,以减少所述气体中存在的一氧化碳和所述表面中的金属之间的相互作用,(iii)从壳层中回收冷却的合成气, (iv)任选地在进一步冷却之后将冷却的合成气通过吸附剂床以从合成气中除去砷化合物。

    Metal passivation
    2.
    发明授权
    Metal passivation 有权
    金属钝化

    公开(公告)号:US08470202B2

    公开(公告)日:2013-06-25

    申请号:US12091258

    申请日:2006-10-10

    IPC分类号: C01B3/26 C23C22/03

    摘要: A method for passivating low-alloy steel surfaces in apparatus operating in the temperature range 350 to 580° C. and exposed to a carbon monoxide containing gas mixture comprises adding a passivating compound containing at least one phosphorus (P) atom to the gas mixture. The gas mixture is preferably a reformed gas and also described is a process for producing a synthesis gas wherein, prior to cooling a reformed gas mixture to a temperature between 350 and 580° C. in apparatus having low-alloy steel surfaces downstream of one or more reforming steps, a passivating compound containing at least one phosphorus (P) atom is combined with the gas mixture.

    摘要翻译: 在350至580℃的温度范围内操作并暴露于含一氧化碳的气体混合物的设备中钝化低合金钢表面的方法包括向气体混合物中加入含有至少一个磷(P)原子的钝化化合物。 气体混合物优选是重整气体,并且还描述了一种生产合成气的方法,其中在将重整气体混合物冷却至350-580℃之间的温度之前,在具有低合金钢表面的装置中, 更多的重整步骤,含有至少一个磷(P)原子的钝化化合物与气体混合物组合。

    Desulphurisation
    4.
    发明授权
    Desulphurisation 失效
    脱硫

    公开(公告)号:US07445702B2

    公开(公告)日:2008-11-04

    申请号:US10532616

    申请日:2003-10-30

    CPC分类号: C10G27/04

    摘要: Propane and/or butanes are separated from a hydrocarbon feedstock contaminated with alkyl mercaptans by fractional distillation at such a pressure that the separated overheads stream containing said propane and/or butanes is at a temperature in the range 50 to 100° C. Sufficient oxygen is introduced into the hydrocarbon feedstock to oxidise the mercaptans therein and the resultant mixture is subjected to the fractional distillation in a column including at least one bed of a catalyst capable, under the prevailing conditions, of oxidising the mercaptans to higher boiling point sulphur compounds. These higher boiling point sulphur compounds are separated as part of the liquid phase from the distillation.

    摘要翻译: 将丙烷和/或丁烷与被烷基硫醇污染的原料烃分开,使得分离的含有丙烷和/或丁烷的塔顶馏出物流的温度为50-100℃。足够的氧是 引入烃原料以氧化其中的硫醇,并将所得混合物在包括至少一种催化剂床的塔中进行分馏,所述催化剂床在主要条件下能够将硫醇氧化成高沸点硫化合物。 这些较高沸点的硫化合物作为液相的一部分从蒸馏中分离出来。

    Exothermic catalytic chemical process
    5.
    发明授权
    Exothermic catalytic chemical process 失效
    放热催化化学工艺

    公开(公告)号:US06174927B1

    公开(公告)日:2001-01-16

    申请号:US09142092

    申请日:1999-04-06

    IPC分类号: C07C2700

    摘要: An exothermic catalytic process, particularly methanol synthesis, wherein reactants are passed through a fixed bed of a catalyst and heat evolved by the reaction is transferred to at least part of the reactants fed to the catalyst bed by heat exchange means to which said part of the reactants are fed, characterized by operation of the process under conditions whereby increasing the temperature at which said reactants are fed to the catalyst bed has the effect of increasing the temperature to which said reactants are heated in said heat exchange means, and vice versa, and controlling said process by monitoring the temperature of said reactants leaving said heat exchange means and/or entering said bed, decreasing the temperature at which the reactants are fed to said heat exchange means in response to any increase in said monitored temperature from a desired level, and increasing the temperature at which the reactants are fed to said heat exchange means in response to any decrease in said monitored temperature from said desired level.

    摘要翻译: 放热催化方法,特别是甲醇合成,其中反应物通过催化剂的固定床和通过反应放出的热量被转移到通过热交换装置供给到催化剂床的反应物的至少一部分, 反应物进料,其特征在于在使所述反应物进料到催化剂床的温度升高的条件下操作该方法具有增加所述反应物在所述热交换装置中被加热的温度的作用,反之亦然,以及 通过监测离开所述热交换装置和/或进入所述床的所述反应物的温度来控制所述方法,降低反应物响应于所述监测温度从期望水平的任何增加而被供给到所述热交换装置的温度, 并且响应于sai的任何减少而增加反应物被供给到所述热交换装置的温度 从所述期望的水平监测温度。

    SYNTHESIS GAS AND FISCHER TROPSCH INTEGRATED PROCESS
    6.
    发明申请
    SYNTHESIS GAS AND FISCHER TROPSCH INTEGRATED PROCESS 有权
    合成气和FISCHER TROPSCH综合工艺

    公开(公告)号:US20140357737A1

    公开(公告)日:2014-12-04

    申请号:US14345554

    申请日:2012-07-23

    IPC分类号: C07C1/04

    摘要: Process for synthesizing hydrocarbons includes: reforming a hydrocarbon feedstock containing inert gases in reforming stages to generate a synthesis gas including the inert gases, steam, hydrogen and carbon monoxide; cooling the synthesis gas below the dew point to obtain a dewatered synthesis gas; synthesizing hydrocarbons from the dewatered synthesis gas by the Fischer-Tropsch reaction and separating at least part of the synthesized hydrocarbons, to give a tail gas; subjecting a mixture of at least part of the tail gas and steam to the water-gas shift reaction, to form shifted tail gas having increased hydrogen and carbon dioxide contents; subjecting the shifted tail gas to one or more membrane separation stages thereby generating an inert gas-containing gas mixture and one or more of a hydrogen-, carbon dioxide- and a hydrocarbon-containing gas mixture; and using one or more of the hydrogen-, carbon dioxide- and hydrocarbon-containing gas mixture in a reformer feed stream.

    摘要翻译: 合成烃的方法包括:在重整阶段重整含有惰性气体的烃原料以产生包括惰性气体,蒸汽,氢气和一氧化碳的合成气; 冷却低于露点的合成气,得到脱水合成气; 通过费 - 托反应从脱水合成气中合成烃,并分离至少部分合成的烃,得到尾气; 使至少部分尾气和蒸汽的混合物进行水煤气变换反应,形成具有增加的氢和二氧化碳含量的转移尾气; 将转移的尾气经受一个或多个膜分离阶段,从而产生含惰性气体的气体混合物和一种或多种含氢气,二氧化碳和含烃气体混合物; 并在重整器进料流中使用一种或多种含氢气,二氧化碳和含烃气体混合物。

    Metal passivation of heat-exchanger exposed to synthesis gas
    8.
    发明授权
    Metal passivation of heat-exchanger exposed to synthesis gas 失效
    金属钝化热交换器暴露于合成气

    公开(公告)号:US08747734B2

    公开(公告)日:2014-06-10

    申请号:US13821882

    申请日:2011-08-19

    摘要: A process for passivation of surfaces of heat exchange apparatus exposed to a synthesis gas containing carbon monoxide, includes the steps of: (i) adding arsine to the synthesis gas to provide a total As concentration in the synthesis gas in range 0.001 to 10 ppmv, (ii) exposing the mixture of hot synthesis gas and arsine to the shell-side surfaces of said heat exchange apparatus to reduce the interaction between the carbon monoxide present in said gas and metals in said surfaces, (iii) recovering a cooled synthesis gas from the shell-side of said apparatus, and (iv) passing the cooled synthesis gas, optionally after further cooling, through a sorbent bed to remove arsenic compounds from the synthesis gas.

    摘要翻译: 一种暴露于含有一氧化碳的合成气体的热交换装置的表面的钝化处理方法,包括以下步骤:(i)向合成气中加入胂以提供合成气中的总As浓度范围为0.001至10ppmv, (ii)将热合成气和胂的混合物暴露于所述热交换装置的壳侧表面,以减少所述气体中存在的一氧化碳与所述表面中的金属之间的相互作用,(iii)从 所述装置的壳侧,以及(iv)任选地在冷却后通过吸附剂床将冷却的合成气通过以从合成气中除去砷化合物。

    Process for increasing hydrogen content of synthesis gas
    10.
    发明授权
    Process for increasing hydrogen content of synthesis gas 失效
    提高合成气氢含量的方法

    公开(公告)号:US08642667B2

    公开(公告)日:2014-02-04

    申请号:US13056765

    申请日:2009-07-10

    IPC分类号: C07C27/00 C01B3/26 C01B3/16

    摘要: A process for increasing the hydrogen content of a synthesis gas containing one or more sulphur compounds is described, comprising the steps of (i) heating the synthesis gas and (ii) passing at least part of the heated synthesis gas and steam through a reactor containing a sour shift catalyst, wherein the synthesis gas is heated by passing it through a plurality of tubes disposed within said catalyst in a direction co-current to the flow of said synthesis gas through the catalyst. The resulting synthesis gas may be passed to one or more additional reactors containing sour shift catalyst to maximize the yield of hydrogen production, or used for methanol production, for the Fischer-Tropsch synthesis of liquid hydrocarbons or for the production of synthetic natural gas.

    摘要翻译: 描述了一种用于增加含有一种或多种硫化合物的合成气的氢含量的方法,包括以下步骤:(i)加热合成气和(ii)将至少部分加热的合成气和蒸汽通过含有 酸转移催化剂,其中通过将合成气通过设置在所述催化剂内的多个管,通过催化剂与所述合成气流并流的方向加热合成气。 所得到的合成气可以通过一个或多个含有酸转移催化剂的另外的反应器,以使氢生产的产率最大化,或用于甲醇生产,用于液体烃的费 - 托合成或合成天然气的生产。