Apparatus & process for heat exchange with fluid beds
    2.
    发明公开
    Apparatus & process for heat exchange with fluid beds 有权
    Apparat und Verfahren zumWärmeaustauschmit Fliessbetten

    公开(公告)号:EP1202017A2

    公开(公告)日:2002-05-02

    申请号:EP01308291.2

    申请日:2001-09-28

    IPC分类号: F28D13/00 B01J8/24

    摘要: Apparatus (1) and process for heat exchange with fluid beds comprises heat-exchange tubes (10) located longitudinally with respect to the axis of a fluidisation zone with a rectangular pitch, one side of which having a length (x) at least one and a half times the length (y) of the other side and/or with a triangular pitch, having two sides each at least one and a half times the length of the shortest side reduces the impact of the heat-exchange tubes (10) on the fluidisation characteristics of the fluid bed. The invention is particularly suitable for oxidation reactions using molecular oxygen-containing gas in the presence of a fluid bed of fluidisable catalyst, such as (a) the acetoxylation of olefins, (b) the oxidation of ethylene to acetic acid and/or the oxidation of ethane to ethylene and/or acetic acid, (c) the ammoxidation of propylene and/or propane to acrylonitrile and (d) the oxidation of C4's to maleic anhydride.

    摘要翻译: 装置(1)和与流体床进行热交换的方法包括热交换管(10),其相对于流化区的轴线纵向定位,其具有矩形间距,其一侧的长度(x)至少为一个, 另一侧的长度(y)和/或三角形间距的一半,其两侧各自为最短边长度的至少一倍,减少了热交换管(10)的冲击 流化床的流化特性。 本发明特别适用于在可流化催化剂的流化床存在下使用含分子氧气体的氧化反应,例如(a)烯烃的乙酰氧基化,(b)将乙烯氧化成乙酸和/或氧化 的乙烷与乙烯和/或乙酸反应,(c)丙烯和/或丙烷对丙烯腈的氨氧化和(d)将C4氧化成马来酸酐。