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1. 发明申请

WO2009058133A1 REGENERATION METHOD WITH EFFICIENT OXYGEN UTILIZATION 审中-公开
标题翻译：有效氧气再利用方法
公开(公告)号：WO2009058133A1
公开(公告)日：2009-05-07
申请号：PCT/US2007/083013
申请日：2007-10-30
申请人： UOP LLC , YUAN, Leon , BIXBY, James L. , AUSTIN, Kyle P. , NABOZNY, Brian D.
发明人： YUAN, Leon , BIXBY, James L. , AUSTIN, Kyle P. , NABOZNY, Brian D.
IPC分类号： B01J38/12
CPC分类号： B01J38/12 , B01J23/96 , C10G11/182
摘要： This invention relates to regeneration of coked catalyst by combustion so that the catalyst can be reused in a hydrocarbon conversion reaction. The completion of coke burn is generally measured with a combination of temperature or change in oxygen concentration. Dropping outlet temperatures require time to wait for increases in inlet temperature to correspondingly move down the regenerator. Faster response times might be expected from increasing oxygen concentration, but a small increase in concentration can lead to a significant increase in peak burn temperature which negatively impacts catalyst life. Controlled peak burning is difficult over the entire bed by merely controlling inlet and outlet oxygen concentrations. The invention accordingly combines a measured lag time for temperature travel with an inlet temperature ramping step to ensure complete coke combustion with high oxygen efficiency, thus providing a rapid regeneration that permits more time for operation at desired reaction conditions.
摘要翻译：本发明涉及通过燃烧再生焦化催化剂，使得催化剂可以在烃转化反应中再利用。焦炭燃烧的完成通常用温度或氧气浓度变化的组合来测量。出口温度下降需要时间才能等待入口温度的升高，以便相应地向下移动再生器。氧浓度增加可以预测响应时间更快，但是浓度的小幅度增加可能导致峰值燃烧温度显着增加，从而对催化剂寿命产生负面影响。通过仅控制入口和出口氧浓度，在整个床上控制峰值燃烧是困难的。因此，本发明将温度行程的测量滞后时间与入口温度升高步骤相结合，以确保具有高氧效率的完全焦炭燃烧，从而提供快速再生，其允许在所需反应条件下操作更多的时间。

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