START-UP METHOD FOR REACTION-REGENERATION UNIT USED TO PREPARE LIGHT OLEFINS FROM METHANOL
    2.
    发明申请
    START-UP METHOD FOR REACTION-REGENERATION UNIT USED TO PREPARE LIGHT OLEFINS FROM METHANOL 有权
    用于从甲醇制备轻质烯烃的反应再生单元的启动方法

    公开(公告)号:US20130178681A1

    公开(公告)日:2013-07-11

    申请号:US13736892

    申请日:2013-01-08

    IPC分类号: B01J8/00

    CPC分类号: B01J8/008 B01J8/1872 B01J8/26

    摘要: The invention provides a start-up method for a reaction-regeneration unit for preparing light olefins from methanol, which comprises: (a) heating a regenerator with an auxiliary combustion chamber and a reactor with a start-up furnace; (b) charging a catalyst into the regenerator and reactor; (c) closing a spent catalyst slide valve and a regenerated catalyst slide valve after the reactor reaches about 350° C. or more; (d) feeding methanol to the reactor after the dense phase stage of the regenerator reaches about 350° C. or more; (e) opening the spent catalyst slide valve and introducing a carbon deposited catalyst from the reactor to the regenerator after the dense phase stage reaches about 400° C. or more and the average amount of carbon deposits on the catalyst in the reactor reaches about 2.5% or more; (f) raising the regenerator to above about 580° C.; and (g) stopping the start-up furnace and auxiliary combustion chamber.

    摘要翻译: 本发明提供了一种用于从甲醇制备轻质烯烃的反应 - 再生单元的启动方法,其包括:(a)用辅助燃烧室加热再生器和具有启动炉的反应器; (b)将催化剂装入再生器和反应器; (c)在反应器达到约350℃或更高之后关闭废催化剂滑阀和再生催化剂滑阀; (d)在再生器的致密相达到约350℃以上之后,将甲醇进料到反应器中; (e)在致密相达到约400℃或更高之后,打开废催化剂滑阀并将碳沉积催化剂从反应器引入再生器,并且反应器中催化剂上的平均碳沉积量达到约2.5 % 或者更多; (f)将再生器升高至约580℃以上; 和(g)停止起动炉和辅助燃烧室。