RFCC过程干气和焦炭的生成规律及减少其产率的研究  

STUDY ON THE FORMATION AND REDUCTION OF DRY GAS AND COKE IN RFCC PROCESS

作　　者：凌逸群[1,2] 王刚[1] 曹东学[2] 徐春明[1] 高金森[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,北京102249 [2]中国石油化工股份有限公司,北京100728

出　　处：《石油学报（石油加工）》2009年第5期614-618,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家杰出青年科学基金项目(20725620)资助

摘　　要：采用连续反应-再生催化裂化中型实验装置研究了重油催化裂化提升管反应器内干气与焦炭的生成规律。结果表明,干气和焦炭的生成主要发生在提升管反应器底部的油-剂混合段,而提升管反应器后半段的催化剂整体活性状况及高温反应环境对干气和焦炭的生成也存在一定的影响;降低再生剂温度减少再生剂与原料油接触温差、提高剂/油质量比有利于降低干气与焦炭产率,在相同转化率下可以获得更高的轻质油收率和液收率。The formation of dry gas and coke in riser reactor for RFCC process was investigated in a riser pilot plant. The experimental results showed that dry gas and coke chiefly generated at the bottom of riser where hot catalysts initially contacted oil droplets, and the situation of low-activity coked catalyst and high temperature at the back half of the riser also influenced the formation of dry gas and coke to some extent. However, lowering the temperature of regenerated catalyst and enhancing catalyst-to-oil mass ratio could be beneficial to reducing the yields of dry gas and coke and increasing the yields of light oil and total liquid products as the feed conversion kept unchanged.

关 键 词：催化裂化 干气 焦炭 油剂混合 液收率 

分 类 号：TE624[石油与天然气工程—油气加工工程]