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化学学报
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化学学报 ›› 1975, Vol. 33 ›› Issue (2): 113-124. 上一篇    下一篇

论文

络合活化催化作用 Ⅱ.乙炔气相水合制乙醛锌系催化剂的研究

  

  1. 1. 厦门冰醋酸厂;
    2. 厦门橡胶厂;
    3. 厦门大学化学系
  • 投稿日期:1975-05-25 发布日期:2013-06-03

CATALYSIS BY COORDINATION ACTIVATION Ⅱ.VAPOR-PHASE CATALYTIC HYDRATION OF ACETYLENE WITH A TYPE OF ZINC-COMPOUND CATALYST

AMOY GLACIAL ACETIc-AcID FACTORY, AMOY RUBBER PRODUCTS FACTORY, DEPARTMENT OF CHEMISTRY AMOY UNIVERSITY   

  1. 1. AMOY GLACIAL ACETIc-AcID FACTORY;
    2. AMOY RUBBER PRODUCTS FACTORY;
    3. DEPARTMENT OF CHEMISTRY, AMOY UNIVERSITY
  • Received:1975-05-25 Published:2013-06-03

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找出了用于乙炔气相水合制乙醛流化床工艺的Z-7锌系催化剂,考察了水蒸汽-乙炔比例、反应温度、原料气总空速对于乙炔单程转化率和产率的影响.在常压和390～400°,水蒸汽对乙炔比例为4:1,乙炔空速300小时-1,原料气线速～0.1米/秒的流化床反应条件下,乙炔单程转化率36～40%达200小时,乙醛的产率为80～82%,巴豆醛的产率为8～12%;催化剂失活之后可在500°左右通空气和水蒸汽再生,每10毫升催化剂的生产能力为每小时1.9克的乙醛和0.22克的巴豆醛.比较了Z-7锌系催化剂、磷酸镉钙催化剂和液相汞法的优缺点.结果表明Z-7锌系催化剂有明显的优越性.讨论了催化反应机理和催化剂的活性中心本质.

A type of zinc-compound catalyst,suitable for industrial production of acetaldehyde from acetylene by vapor-phase catalytic hydration by means of fluidized-bed technology,has been investigated.The mechanisms of the catalytic reactions and the nature of the active-centers of the oatalyst have been discussed.