Catalyst and the use thereof for the production of gas containing methane
    1.
    发明授权
    Catalyst and the use thereof for the production of gas containing methane 失效
    催化剂及其用于生产含甲烷气体的用途

    公开(公告)号:US3990866A

    公开(公告)日:1976-11-09

    申请号:US521881

    申请日:1974-11-07

    CPC分类号: B01J23/755

    摘要: The compound Ni.sub.5 MgAl.sub.2 (OH).sub.16.sup.. CO.sub.3.sup.. 4H.sub.2 O is precipitated from an aqueous solution containing salts of nickel, magnesium and aluminum with a carbonate or bicarbonate of an alkali metal. After this catalyst precursor has been dried, calcined and reduced with hydrogen a catalyst can be prepared which is suitable for the cracking of hydrocarbons in the presence of steam. In the steam cracking of hydrocarbons the hydrocarbon and the steam may be reacted to form a gas rich in methane in contact with this catalyst at a preheating temperature of less than 300.degree. C.

    摘要翻译: 化合物Ni5MgAl2(OH)16.CO3·4H2O从含有镍,镁和铝的盐的水溶液中与碱金属的碳酸盐或碳酸氢盐沉淀。 在该催化剂前体已经干燥,煅烧并用氢还原之后,可以制备适合于在蒸汽存在下裂解烃的催化剂。 在烃的蒸汽裂化中,烃和蒸汽可在低于300℃的预热温度下反应形成富含甲烷的气体与该催化剂接触。

    Expandable styrene polymers containing carbon dioxide as blowing agent
    5.
    发明授权
    Expandable styrene polymers containing carbon dioxide as blowing agent 失效
    含有二氧化碳作为发泡剂的可发性苯乙烯聚合物

    公开(公告)号:US5258415A

    公开(公告)日:1993-11-02

    申请号:US10316

    申请日:1993-01-28

    摘要: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    摘要翻译: 本发明涉及含有a)苯乙烯聚合物,b)和至少一种与上述混合或共聚的二氧化碳吸收剂的可发性苯乙烯聚合物,其量为0.01至50重量%,基于a) 和b),和c)发泡剂或发泡剂混合物的量为0.5至12重量%,其中发泡剂或发泡剂混合物包含c1)10至100重量%的二氧化碳和c2) 0至90重量%的至少一种其它发泡剂。 本发明还涉及含有二氧化碳吸收剂的苯乙烯聚合物,可从可发性苯乙烯聚合物获得的苯乙烯聚合物泡沫,以及用含二氧化碳的发泡剂或发泡剂混合物浸渍苯乙烯聚合物的改进方法。

    Expandable styrene polymers containing carbon dioxide as blowing agent
    7.
    发明授权
    Expandable styrene polymers containing carbon dioxide as blowing agent 失效
    含有二氧化碳作为发泡剂的可膨胀的苯乙烯聚合物

    公开(公告)号:US5229429A

    公开(公告)日:1993-07-20

    申请号:US973822

    申请日:1992-11-09

    摘要: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    摘要翻译: 本发明涉及含有a)苯乙烯聚合物,b)和至少一种与上述混合或共聚的二氧化碳吸收剂的可发性苯乙烯聚合物,其量为0.01至50重量%,基于a) 和b),和c)发泡剂或发泡剂混合物的量为0.5至12重量%,其中发泡剂或发泡剂混合物包含c1)10至100重量%的二氧化碳和c2) 0至90重量%的至少一种其它发泡剂。 本发明还涉及含有二氧化碳吸收剂的苯乙烯聚合物,可从可发性苯乙烯聚合物获得的苯乙烯聚合物泡沫,以及用含二氧化碳的发泡剂或发泡剂混合物浸渍苯乙烯聚合物的改进方法。

    Purification of gases containing CO and/or CO.sub.2
    9.
    发明授权
    Purification of gases containing CO and/or CO.sub.2 失效
    纯化含CO和/或CO2的气体

    公开(公告)号:US4521387A

    公开(公告)日:1985-06-04

    申请号:US552930

    申请日:1983-11-18

    摘要: Gases containing CO and/or CO.sub.2 are purified by removing sulfur compounds and other impurities by catalytic reaction at elevated temperatures by a process in which the gases to be purified are passed directly through a catalyst charge containing a Cu/ZnO catalyst prepared by thermal decomposition of a mixed crystalline compound of zinc hydroxide carbonate, and the space velocity is set at 500-5,000 m.sup.3 (S.T.P.) per m.sup.3 of catalyst per hour. Preferably, the catalyst used is a Cu/ZnO catalyst which is prepared by thermal decomposition of a catalyst precursor of the general formulaCu.sub.x Zn.sub.y (OH).sub.6 (CO.sub.3).sub.2.

    摘要翻译: 含有CO和/或CO2的气体通过在高温下通过催化反应除去硫化合物和其它杂质而被纯化,其中待纯化气体直接通过含有通过热分解制备的Cu / ZnO催化剂的催化剂装料 氢氧化锌碳酸盐的混合结晶化合物,空速为每小时每立方米催化剂500-5,000立方米(STP)。 优选地,所用的催化剂是通过热分解通式CuxZny(OH)6(CO 3)2的催化剂前体制备的Cu / ZnO催化剂。