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发明申请
US20090020454A1 Reduced elevation catalyst return line for a fluid catalytic cracking unit 有权
用于流化催化裂化装置的降低催化剂返回管路

Reduced elevation catalyst return line for a fluid catalytic cracking unit
摘要：
The present invention is an improved regenerated catalyst bend assembly for a fluid catalytic cracking unit. In a preferred embodiment, the reduced elevation (“RE-bend” or “REL-bend”) regenerated catalyst return line assembly of the present invention has an outlet elevation that is lower than the inlet elevation of the RE-bend or REL-bend regenerated catalyst return line assembly, and a process for utilizing the assembly in a fluid catalytic cracking unit. The present invention is especially useful in the modification of existing fluid catalytic cracking units to lower the elevation of the outlet of the regenerated catalyst return line assembly, thereby providing needed space to increase the fluid catalytic cracking reactor riser length.
摘要（中）：

本发明是用于流化催化裂化装置的改进的再生催化剂弯曲组件。 在优选实施例中，本发明的再生催化剂返回管线组件的缩小的高度（“RE-弯曲”或“REL-弯曲”）具有低于RE弯头或REL-弯头的入口高度的出口高度 再生催化剂返回管路组件，以及在流化催化裂化装置中利用该组件的方法。 本发明特别可用于改进现有的流化催化裂化装置以降低再生催化剂返回管线组件的出口的高度，从而提供所需的空间以增加流化催化裂化反应器提升管的长度。

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