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MULTISTAGE CRACKING AND STRIPPING PROCESS IN AN FCC UNIT

机译：FCC装置中的多级裂解和剥离过程

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摘要

The present invention relates to a multi staged cracking and stripping process that can be used in a fluidized-bed catalytic cracking process or FCC (fluidized catalytic cracking) process for maximizing the production of olefins, that is to say of C3 and C4 olefins, in particular propylene and distillates. One subject of the present invention is therefore a multi-staged process for cracking and stripping a fluidized mixture of hydrocarbons and of coked catalyst particles, integrated into a conventional fluidized-bed catalytic cracking process comprising at least one cracking step and one stripping step after separation of the particles of coked catalyst from the cracked effluent during the disengaging/stripping step, characterized in that it comprises at least two steps of cracking at least one hydrocarbonaceous fluid over the separated coked catalyst particles followed by at least two steps of stripping these particles, each cracking step preceding a stripping step. The present invention also relates to a separating and stripping device that implements this process.

机译：本发明涉及一种多级裂化和汽提方法，其可用于流化床催化裂化方法或FCC（流化催化裂化）方法中，以最大程度地生产烯烃，即C 3和C 4烯烃。特别是丙烯和馏出物。因此，本发明的一个主题是用于裂化和汽提烃和焦化催化剂颗粒的流化混合物的多阶段方法，其被集成到常规的流化床催化裂化方法中，该方法包括分离后的至少一个裂化步骤和一个汽提步骤。在分离/汽提步骤中来自裂化废水的焦化催化剂颗粒的特征在于，其包括至少两个步骤，即在分离的焦化催化剂颗粒上裂化至少一种含烃流体，然后进行至少两个汽提这些颗粒的步骤，在汽提步骤之前的每个裂化步骤。本发明还涉及实施该方法的分离和剥离装置。

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公开/公告号EP2627736B1

专利类型
公开/公告日2019-12-04

原文格式PDF
申请/专利权人 TOTAL RAFFINAGE FRANCE;
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申请/专利号EP20110832095
发明设计人 LEROY PATRICK;BORIES MARC;ECHARD MICHAËL;
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申请日2011-10-11
分类号C10G11/18;B01J8/24;B01J38/06;B01J38/56;C07C11/04;C07C11/06;B01J8/28;C07C11/02;B01J38/14;C07C4/06;C10G51/02;
国家 EP
入库时间 2022-08-21 11:41:29

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