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    Catalyst For Preparing Acrolein And Acrylic Acid By Dehydration Of Glycerin, And Its Production Process
    1.
    发明申请
    Catalyst For Preparing Acrolein And Acrylic Acid By Dehydration Of Glycerin, And Its Production Process 审中-公开
    通过甘油脱水制备丙烯醛和丙烯酸的催化剂及其制备方法

    公开(公告)号：US20140206527A1

    公开(公告)日：2014-07-24

    申请号：US14235460

    申请日：2012-07-30

    申请人： Kimito Okumura ,  Yasushi Kobayashi ,  Ryota Hiraoka ,  Jean-Luc Dubois

    发明人： Kimito Okumura ,  Yasushi Kobayashi ,  Ryota Hiraoka ,  Jean-Luc Dubois

    IPC分类号： B01J27/188 ,  B01J23/30

    CPC分类号： B01J27/188 ,  B01J23/30 ,  B01J35/1038 ,  B01J35/108 ,  C07C45/52 ,  C07C51/235 ,  C07C51/25 ,  C07C57/04 ,  C07C47/22

    摘要： An object of the present invention is to provide a catalyst for glycerin dehydration reaction for producing unsaturated aldehyde and unsaturated carboxylic acid at higher yield by a dehydration reaction of glycerin, and that can reduce a decrease in time of the conversion ratio of glycerin and the yields of unsaturated aldehyde and of unsaturated carboxylic acid. Another object of the present invention is to provide a catalyst for glycerin dehydration reaction that can produce acrolein and acrylic acid at higher yield by the dehydration reaction of glycerin, and the catalyst has a longer life. Still another object of the present invention is to provide a method for preparing the catalysts above. A catalyst for glycerin dehydration comprising a carrier, wherein the carrier includes at least one metal oxide selected from the group consisting TiO2, SiO2, Al2O3, ZrO2, and Nb2O5, wherein the carrier includes a bimodal porous structure in which the volume ratio between a pore volume of mesopores having a pore size of more than 2 nm to less than 50 nm to a pore volume of macropores having a pore size of 50 nm or more is equal to or more than 0.5, and wherein the carrier configures to support a W-containing metal oxide thereon or a metal oxide containing at least one element selected from the group consisting of P, Si, Mo, and V, in addition to the W-containing metal oxide thereon, and to cause a catalytic dehydrogenation reaction with glycerin to produce acrolein and acrylic acid.

    摘要翻译： 本发明的目的是提供一种用于甘油脱水反应的催化剂，其通过甘油的脱水反应以更高的产率生产不饱和醛和不饱和羧酸，并且可以减少甘油的转化率和产率的时间的减少 的不饱和醛和不饱和羧酸。 本发明的另一个目的是提供一种用于甘油脱水反应的催化剂，其可以通过甘油的脱水反应以更高的产率生产丙烯醛和丙烯酸，并且催化剂具有更长的使用寿命。 本发明的另一个目的是提供一种制备上述催化剂的方法。 一种用于甘油脱水的催化剂，其包含载体，其中所述载体包括选自TiO 2，SiO 2，Al 2 O 3，ZrO 2和Nb 2 O 5中的至少一种金属氧化物，其中载体包括双峰多孔结构，其中孔 孔径为50nm以上的大孔的细孔容积大于2nm〜小于50nm的介孔的体积为0.5以上，并且其中载体配置为支持W- 含有金属氧化物的金属氧化物或含有选自P，Si，Mo和V中的至少一种元素的金属氧化物，并且与其上的含W金属氧化物一起，并且与甘油进行催化脱氢反应以产生 丙烯醛和丙烯酸。