公开(公告)号：US20010049328A1

公开(公告)日：2001-12-06

申请号：US09837788

申请日：2001-04-18

申请人： China Petrochemical Corporation

发明人： Rendian Zhao ,  Zhihai Zhao ,  Jin Wang ,  Lanxin Zhang ,  Feng Shi ,  Jinhui Fu

IPC分类号： B01J038/04 ,  B01J038/44

CPC分类号： C10G35/12 ,  B01J8/125 ,  B01J8/1836 ,  B01J38/20 ,  B01J38/30 ,  B01J38/32 ,  B01J38/44 ,  B01J2208/00327 ,  B01J2219/185 ,  B01J2219/1942

摘要： A process for continuously regenerating catalyst particles comprising: passing deactivated catalyst particles downwards in sequence through the first coke-burning zone, second coke-burning zone, oxychlorination zone, and calcination zone in the regenerator, wherein the catalyst particles are contacted with the regeneration gas from the second coke-burning zone, the supplemented dry air, and an inert gas in the first coke-burning zone; introducing an oxygen-containing regeneration gas from the second coke-burning zone into the regenerator, wherein said gas is contacted with the catalyst particles from the first coke burning zone; withdrawing the regeneration gas from the regenerator through the first coke-burning zone and, after the recovery system, recycling it to the second coke-burning zone. The regeneration gas may pass the catalyst bed in either a centrifugal or centripetal way. This process prevents the regeneration gas with a high water content from contacting the catalyst at a high temperature as in the conventional continuous coke-burning processes for regenerating catalyst particles and thereby reduces the decreasing rate of the specific surface area of the catalyst and prolongs its service life.

摘要翻译： 一种用于连续再生催化剂颗粒的方法，包括：使失活的催化剂颗粒依次通过再生器中的第一焦炭燃烧区域，第二焦炭燃烧区域，氧氯化区域和煅烧区域，其中催化剂颗粒与再生气体接触 来自第二焦炭燃烧区，补充的干燥空气和第一焦炭燃烧区中的惰性气体; 将来自所述第二焦炭燃烧区域的含氧再生气体引入所述再生器中，其中所述气体与来自所述第一焦炭燃烧区域的所述催化剂颗粒接触; 从再生器通过第一焦炭燃烧区域抽出再生气体，并且在回收系统之后将其再循环到第二焦炭燃烧区域。 再生气体可以以离心式或向心式方式通过催化剂床。 该方法防止高含水量的再生气体在高温下与催化剂接触，如常规连续焦化燃烧方法中再生催化剂颗粒，从而降低催化剂比表面积的降低速率并延长其使用寿命 生活。