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    • 1. 发明授权
    • Oxide-based catalyst, production thereof, and catalytic hydrogenation of
CO.sub.2 using said catalyst
    • 使用所述催化剂的氧化物基催化剂,其生产和CO 2的催化氢化
    • US5393793A
    • 1995-02-28
    • US39229
    • 1993-04-19
    • Tomoyuki Inui
    • Tomoyuki Inui
    • B01J23/80B01J23/83B01J23/86B01J37/04C07B61/00C07C29/154C07C31/04C07C27/06B01J23/10
    • C07C29/154B01J23/80B01J23/83B01J23/868B01J37/04Y02P20/52
    • A compound oxide X.sub.1 having the oxide composition CuO-ZnO-Cr.sub.2 O.sub.3 -Al.sub.2 O.sub.3 is physically admixed with a compound oxide X.sub.2 prepared by impregnating .gamma.-Al.sub.2 O.sub.3 with La(NO.sub.3).sub.3 and firing the same, to give a CuO-ZnO-Cr.sub.2 O.sub.3 -Al.sub.2 O.sub.3 -La.sub.2 O.sub.3 -based compound oxide with an La.sub.2 O.sub.3 addition level of 4% by weight. This compound oxide is reduced and packed into a reactor and a mixed gas composed of CO.sub.2 and H.sub.2 in a mole ratio of 1:3 is fed to the reactor, whereby methanol is obtained in high yield. The total conversion of CO.sub.2 amounts to 31.0%, the conversion to methanol being 22.9% (selectivity toward methanol 73.9%). When the pressure is 80 atmospheres, the conversion of CO.sub.2 amounts to 39%, the conversion to methanol being 29%.
    • PCT No.PCT / JP92 / 01039 Sec。 371日期:1993年4月19日 102(e)日期1993年4月19日PCT提交1992年8月17日PCT公布。 出版物WO93 / 03837 日期为1993年3月4日。具有氧化物组成为CuO-ZnO-Cr2O3-Al2O3的复合氧化物X1与通过用La(NO 3)3浸渍γ-Al 2 O 3并制备的复合氧化物X2物理混合, CuO-ZnO-Cr2O3-Al2O3-La2O3基复合氧化物,La2O3添加量为4重量%。 将该复合氧化物还原并填充到反应器中,将由CO 2和H 2组成的摩尔比为1:3的混合气体进料到反应器中,从而以高产率获得甲醇。 CO 2的总转化率为31.0%,转化为甲醇为22.9%(对甲醇的选择性为73.9%)。 当压力为80个大气压时,CO 2的转化率为39%,甲醇的转化率为29%。