公开(公告)号：US07316773B2

公开(公告)日：2008-01-08

申请号：US10800014

申请日：2004-03-15

申请人： Jianfang Zhang ,  An Ma ,  Honghong Shan ,  Chaohe Yang ,  Genlin Niu ,  Yongshan Tu ,  Feng Du ,  Yudong Sun ,  Zheng Li ,  Chunyi Li ,  Zhongxiang Han

发明人： Jianfang Zhang ,  An Ma ,  Honghong Shan ,  Chaohe Yang ,  Genlin Niu ,  Yongshan Tu ,  Feng Du ,  Yudong Sun ,  Zheng Li ,  Chunyi Li ,  Zhongxiang Han

IPC分类号： C10G51/02

CPC分类号： C10G51/026 ,  C10G11/18

摘要： The present invention relates to a catalytic cracking process and a device used in the process in particular, the present invention provides a catalytic cracking process, which comprises which comprises: 1) catalytic cracking a feedstock in the first riser for less than about 1.5 second and sending the resultant stream into the first separating device,; 2) catalytic cracking the recycle oil obtained from the first separating device in the second riser for less than about 1.5 second and sending the resultant stream into the first separating device; and 3) carrying out catalytic reaction of the crude gasoline stream and/or optionally the diesel oil stream obtained from first separating device in the third riser; wherein the reaction conditions and the catalysts used in the first to third risers are selected according to the requirement for the product of the catalytic cracking process, and the catalyst regeneration and recycle systems are formed respectively for the catalysts used in the first to third risers, so as to effectively improve the product distribution of the catalytic cracking process and the quality of the target product.

摘要翻译： 本发明涉及催化裂化方法和本方法中特别使用的装置，本发明提供催化裂化方法，其包括：1）在第一提升管中催化裂化少于约1.5秒的原料， 将所得流送入第一分离装置; 2）在第二提升管中从第一分离装置获得的再循环油催化裂化小于约1.5秒，并将所得流送入第一分离装置; 和3）在第三提升管中进行粗汽油流和/或任选的从第一分离装置获得的柴油流的催化反应; 其中根据对催化裂化过程的产物的要求选择在第一至第三提升管中使用的反应条件和催化剂，并且为第一至第三提升管中使用的催化剂分别形成催化剂再生和再循环系统， 有效提高催化裂化工艺的产品分布和目标产品的质量。