METHANOL SYNTHESIS PROCESS
    4.
    发明申请
    METHANOL SYNTHESIS PROCESS 有权
    甲醇合成方法

    公开(公告)号:US20120165418A1

    公开(公告)日:2012-06-28

    申请号:US13378595

    申请日:2010-05-24

    IPC分类号: C07C27/00

    摘要: A methanol synthesis process includes reacting a process gas containing hydrogen, carbon dioxide and carbon monoxide over a catalyst including shaped units formed from a reduced and passivated catalyst powder the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, to form a product gas, and condensing methanol, water and oxygenate by-products therefrom, wherein the total oxygenate by-product level in the condensate is below 500 ppm.

    摘要翻译: 甲醇合成方法包括使含有氢气,二氧化碳和一氧化碳的工艺气体在催化剂上反应,所述催化剂包括由还原和钝化的催化剂粉末形成的成形单元,该粉末包括10-80重量%的铜,范围为10-80重量%的氧化锌 20-90重量%,氧化铝在5-60重量%范围内,以及任选的一种或多种选自Mg,Cr,Mn,V,Ti,Zr,Ta,Mo,W,Si和稀有金属的氧化促进剂化合物 地球在0.01-10重量%的范围内,以形成产物气体,并从其中冷凝甲醇,水和含氧化合物副产物,其中冷凝物中的总含氧化合物副产物水平低于500ppm。

    Methanol process
    5.
    发明授权
    Methanol process 有权
    甲醇工艺

    公开(公告)号:US08536235B2

    公开(公告)日:2013-09-17

    申请号:US12602004

    申请日:2008-05-06

    IPC分类号: C07C27/00

    CPC分类号: C07C29/1516 C07C31/04

    摘要: A process for the synthesis of methanol comprises: (a) passing a synthesis gas mixture comprising a loop gas and a make-up gas through a first synthesis reactor containing a methanol synthesis catalyst, said reactor cooled by boiling water under pressure, to form a mixed gas containing methanol, (b) cooling the mixed gas containing methanol, (c) passing said cooled mixed gas containing methanol through a second synthesis reactor containing a methanol synthesis catalyst in which further methanol is synthesized to form a product gas stream, (d) cooling said product gas to condense methanol, (e) recovering said methanol and returning unreacted gas as the loop gas to said first synthesis reactor, wherein the mixed gas containing methanol from the first synthesis reactor is cooled in heat exchange with either said loop gas or said make up gas.

    摘要翻译: 合成甲醇的方法包括:(a)将包含环状气体和补充气体的合成气混合物通过含有甲醇合成催化剂的第一合成反应器,所述反应器在压力下由沸水冷却,形成 含有甲醇的混合气体,(b)冷却含有甲醇的混合气体,(c)将含有甲醇的冷却混合气体通过包含甲醇合成催化剂的第二合成反应器,其中合成另外的甲醇以形成产物气流(d )冷却所述产物气体以冷凝甲醇,(e)回收所述甲醇并将作为环路气体的未反应气体返回到所述第一合成反应器,其中将含有来自第一合成反应器的甲醇的混合气体与所述环路气体 或补充气体。

    METHANOL SYNTHESIS
    6.
    发明申请
    METHANOL SYNTHESIS 有权
    甲醇合成

    公开(公告)号:US20090018220A1

    公开(公告)日:2009-01-15

    申请号:US11915656

    申请日:2006-05-09

    IPC分类号: C07C27/06

    摘要: A process for synthesising methanol comprises the steps of: (i) reforming a hydrocarbon feedstock and separating water to generate a make-up gas comprising hydrogen and carbon oxides, the make-up gas mixture having a stoichiometric number, R, R=([H2]−[CO2])/([CO2]+[CO]) of less than 2.0, (ii) combining the make up gas with an unreacted synthesis gas to form a synthesis gas mixture, (iii) passing the synthesis gas through a bed of methanol synthesis catalyst to generate a product stream, (iv) cooling the product stream to recover a crude methanol stream from the unreacted synthesis gas, (v) removing a portion of the unreacted synthesis gas as a purge gas, and (vi) feeding the remaining unreacted synthesis gas to step (ii), wherein hydrogen is recovered from a portion of the purge gas and the make up gas, and the recovered hydrogen is included in the synthesis gas mixture.

    摘要翻译: 合成甲醇的方法包括以下步骤:(i)重整烃原料并分离水以产生包含氢和碳氧化物的补充气体,补充气体混合物具有化学计量数R,R =([ H 2] - [CO 2])/([CO 2] + [CO])小于2.0,(ii)将补充气与未反应的合成气组合以形成合成气混合物,(iii)使合成气通过 甲醇合成催化剂床以产生产物流,(iv)冷却产物流以从未反应的合成气中回收粗甲醇流,(v)除去作为吹扫气体的一部分未反应的合成气,和(vi )将剩余的未反应的合成气进料到步骤(ii),其中从清洗气体和补充气体的一部分回收氢气,并且回收的氢气被包括在合成气体混合物中。

    Methanol synthesis
    7.
    发明授权
    Methanol synthesis 有权
    甲醇合成

    公开(公告)号:US07144923B2

    公开(公告)日:2006-12-05

    申请号:US10542819

    申请日:2004-01-12

    IPC分类号: C07C27/00

    摘要: Methanol is synthesized from pre-heated methanol synthesis gas in one or more adiabatic synthesis stages with cooling of the resultant gas after each stage. Further methanol synthesis is then effected on the resultant partially reacted synthesis gas in a bed of synthesis catalyst cooled by means of a coolant flowing co-currently through tubes disposed in the catalyst bed. After cooling methanol is separated from the unreacted gas. Part of the unreacted gas is combined with make-up gas and used as the coolant fed to the aforesaid tubes, thus producing the pre-heated synthesis gas to be fed to the adiabatic synthesis stages.

    摘要翻译: 在一个或多个绝热合成阶段中,由预热甲醇合成气合成甲醇,在每个阶段之后冷却所得气体。 然后在合成床催化剂床上进行甲醇合成,然后通过同时流经管道的冷却剂冷却合成催化剂床。 冷却后,甲醇与未反应气体分离。 未反应气体的一部分与补充气体组合并用作供给上述管的冷却剂,从而产生待加热到绝热合成阶段的预热合成气。

    Methanol synthesis
    8.
    发明授权
    Methanol synthesis 有权
    甲醇合成

    公开(公告)号:US06433029B1

    公开(公告)日:2002-08-13

    申请号:US09714218

    申请日:2000-11-17

    IPC分类号: C07C2700

    CPC分类号: C07C29/1516 C07C31/04

    摘要: Methanol is synthesised in a synthesis loop wherein recycled unreacted gas, optionally together with part of the make-up gas, is passed through a bed of synthesis catalyst under methanol synthesis conditions, make-up gas is then added and the mixture passed through at least one further bed of synthesis catalyst under methanol synthesis conditions prior to separation of the synthesised methanol. Preferably the further bed of synthesis catalyst is located in a heat exchange reactor producing pressurised hot water which is employed to saturate a hydrocarbon feedstock from which the make-up gas is produced by steam reforming.

    摘要翻译: 在合成回路中合成甲醇,其中再循环的未反应气体,任选地与部分补充气体一起在甲醇合成条件下通过合成催化剂床,然后加入补充气体,混合物至少通过 在合成甲醇分离之前,在甲醇合成条件下再加入合成催化剂床。 优选地,合成催化剂的另一床位于产生加压热水的热交换反应器中,所述加热热水用于使通过蒸汽重整产生补充气体的烃原料饱和。

    Methanol synthesis
    9.
    发明授权
    Methanol synthesis 有权
    甲醇合成

    公开(公告)号:US07786180B2

    公开(公告)日:2010-08-31

    申请号:US11915656

    申请日:2006-05-09

    IPC分类号: C07C27/00

    摘要: A process for synthesising methanol comprises the steps of: (i) reforming a hydrocarbon feedstock and separating water to generate a make-up gas comprising hydrogen and carbon oxides, the make-up gas mixture having a stoichiometric number, R, R=([H2]−[CO2])/([CO2]+[CO]) of less than 2.0, (ii) combining the make up gas with an unreacted synthesis gas to form a synthesis gas mixture, (iii) passing the synthesis gas through a bed of methanol synthesis catalyst to generate a product stream, (iv) cooling the product stream to recover a crude methanol stream from the unreacted synthesis gas, (v) removing a portion of the unreacted synthesis gas as a purge gas, and (vi) feeding the remaining unreacted synthesis gas to step (ii), wherein hydrogen is recovered from a portion of the purge gas and the make up gas, and the recovered hydrogen is included in the synthesis gas mixture.

    摘要翻译: 合成甲醇的方法包括以下步骤:(i)重整烃原料并分离水以产生包含氢和碳氧化物的补充气体,补充气体混合物具有化学计量数R,R =([ H 2] - [CO 2])/([CO 2] + [CO])小于2.0,(ii)将补充气与未反应的合成气组合以形成合成气混合物,(iii)使合成气通过 甲醇合成催化剂床以产生产物流,(iv)冷却产物流以从未反应的合成气中回收粗甲醇流,(v)除去作为吹扫气体的一部分未反应的合成气,和(vi )将剩余的未反应的合成气进料到步骤(ii),其中从清洗气体和补充气体的一部分回收氢气,并且回收的氢气被包括在合成气体混合物中。

    METHANOL PROCESS
    10.
    发明申请
    METHANOL PROCESS 有权
    甲醇方法

    公开(公告)号:US20100160694A1

    公开(公告)日:2010-06-24

    申请号:US12602004

    申请日:2008-05-06

    IPC分类号: C07C29/74

    CPC分类号: C07C29/1516 C07C31/04

    摘要: A process for the synthesis of methanol comprises: (a) passing a synthesis gas mixture comprising a loop gas and a make-up gas through a first synthesis reactor containing a methanol synthesis catalyst, said reactor cooled by boiling water under pressure, to form a mixed gas containing methanol, (b) cooling the mixed gas containing methanol, (c) passing said cooled mixed gas containing methanol through a second synthesis reactor containing a methanol synthesis catalyst in which further methanol is synthesised to form a product gas stream, (d) cooling said product gas to condense methanol, (e) recovering said methanol and returning unreacted gas as the loop gas to said first synthesis reactor, wherein the mixed gas containing methanol from the first synthesis reactor is cooled in heat exchange with either said loop gas or said make up gas.

    摘要翻译: 合成甲醇的方法包括:(a)将包含环状气体和补充气体的合成气混合物通过含有甲醇合成催化剂的第一合成反应器,所述反应器在压力下由沸水冷却,形成 含有甲醇的混合气体,(b)冷却含有甲醇的混合气体,(c)将含有甲醇的冷却混合气体通过包含甲醇合成催化剂的第二合成反应器,其中合成另外的甲醇以形成产物气流(d )冷却所述产物气体以冷凝甲醇,(e)回收所述甲醇并将作为环路气体的未反应气体返回到所述第一合成反应器,其中将含有来自第一合成反应器的甲醇的混合气体与所述环路气体 或补充气体。