Process for the activation of a supported chromium oxide based catalyst
    4.
    发明授权
    Process for the activation of a supported chromium oxide based catalyst 有权
    活化负载的氧化铬基催化剂的方法

    公开(公告)号:US09006363B2

    公开(公告)日:2015-04-14

    申请号:US13879681

    申请日:2011-10-05

    摘要: Process for the activation of a supported chromium oxide based catalyst in a fluidized bed activation reactor which has a catalyst bed being fluidized by a fluidization gas. The activation includes treatment at temperatures above 500° C., in which in an initial stage, where there is an initial temperature increase, the fluidization velocity (Vf1) of the fluidization gas is maintained below 6.5 centimeters per second (cm/sec) until the temperature inside the activation reactor reaches at least 200° C., and the fluidization gas is then brought to a value (Vf2) which is at least 1 cm/sec higher than Vf1.

    摘要翻译: 在流化床活化反应器中活化负载的氧化铬基催化剂的方法,其中催化剂床被流化气体流化。 激活包括在高于500℃的温度下的处理,其中在初始阶段,在初始温度升高的情况下,流化气体的流化速度(Vf1)保持在6.5厘米/秒以下(cm /秒),直到 活化反应器内的温度达到至少200℃,然后使流化气体达到比Vf1高至少1cm / sec的值(Vf2)。