METHANOL SYNTHESIS PROCESS
    1.
    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

    Abstract: 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.

    Abstract translation: 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。

    Absorbents
    2.
    发明授权
    Absorbents 失效
    吸收剂

    公开(公告)号:US5897845A

    公开(公告)日:1999-04-27

    申请号:US693202

    申请日:1996-10-08

    Abstract: Absorbent granules comprising an intimate mixture of particles of alumina trihydrate, 0.5 to 2 parts by weight of particles of a sodium component selected from the group consisting of sodium carbonate, sodium bicarbonate and mixtures thereof per part by weight of said alumina trihydrate and from 5 to 20% by weight of a binder, said alumina trihydrate, sodium component and binder being present in such proportions that, after ignition of a sample of the granules at 900.degree. C., the sample has a sodium oxide, Na.sub.2 O, content of at least 20% by weight. Processes for manufacturing such absorbent granules and for using such absorbent granules for the removal of acidic gases are also disclosed.

    Abstract translation: PCT No.PCT / GB95 / 00303 Sec。 371日期1996年10月8日第 102(e)日期1996年10月8日PCT提交1995年2月14日PCT公布。 WO95 / 22403 PCT出版物 日期1995年8月24日吸收剂颗粒包含三水合氧化铝颗粒的紧密混合物,0.5至2重量份选自碳酸钠,碳酸氢钠的钠组分的颗粒及其混合物,每重量份所述氧化铝 三水合物和5至20重量%的粘合剂,所述三水合氧化铝,钠组分和粘合剂以如下比例存在,使得在900℃下将颗粒样品点燃后,样品具有氧化钠,Na 2 O ,含量至少为20重量%。 还公开了制造这种吸收性颗粒和使用这种吸收性颗粒去除酸性气体的方法。

    Copper catalysts
    7.
    发明授权
    Copper catalysts 失效
    铜催化剂

    公开(公告)号:US5928985A

    公开(公告)日:1999-07-27

    申请号:US702581

    申请日:1996-09-03

    CPC classification number: B01J33/00 B01J23/72 B01J23/80 C23C8/16

    Abstract: Stabilization of a reduced copper catalyst by a) passivating the catalyst by passing a gas stream that is free of reducing gases and which contains 0.05 to 0.5% by volume of oxygen and an amount of carbon dioxide at least twice the amount of oxygen through a bed of the catalyst until the catalyst is passivated, the proportion of oxygen in said gas stream and the temperature at which it is fed to the bed being such that the temperature of the catalyst does not rise to above 100.degree. C. during said passivation step, and then b) increasing the oxygen content of the gas passing through the bed until the oxygen partial pressure corresponds to that of air at atmospheric pressure. The process may be applied to the stabilization of fresh reduced catalysts or to the stabilization of used, e.g. spent catalysts, before discharge thereof from a reactor.

    Abstract translation: PCT No.PCT / GB95 / 00416 Sec。 371日期1996年9月3日 102(e)日期1996年9月3日PCT提交1995年2月28日PCT公布。 公开号WO95 / 23644 日期1995年9月8日,a。还原铜催化剂的稳定化a)通过使不含还原气体的气流通过催化剂钝化,并且其含有0.05至0.5体积%的氧气和二氧化碳的量至少为数量的两倍 的氧气通过催化剂床直到催化剂被钝化,所述气流中的氧气比例和其进料到床的温度使得催化剂的温度不升高到100℃以上。 在所述钝化步骤期间,然后b)增加通过床的气体的氧含量,直到氧分压对应于在大气压下的空气的氧分压。 该方法可以应用于新鲜还原催化剂的稳定化或用于稳定所用的,例如, 废催化剂在从反应器排出之前。

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