摘要
为了达到劣质重油催化裂化多产汽油和低碳烯烃的目的,基于拟全浓相、拟均温、拟匀速反应概念,提出使用快速流化床反应器对劣质重油原料进行催化裂化的思路。以中国石化济南分公司2号催化裂化装置原料油为原料,进行了快速流化床反应器催化裂化反应研究,开发了劣质重油原料高选择性催化裂化(RTC-G)技术。研究结果表明:相比于提升管反应器,使用快速流化床反应器催化裂化时的液化气产率和汽油产率分别高2.33百分点和0.35百分点,干气产率低0.34百分点,产品转化率和高价值产品选择性均有一定优势。在快速流化床反应器内选用适当的催化剂,可使劣质重油催化裂化的液化气产率达25.52%,丙烯产率达11.84%。
In order to produce more gasoline and light olefins from the catalytic cracking of inferior heavy oil,based on the concept of high catalyst concentration,pseudo uniform reaction temperature and pseudo constant gas phase velocity,a method which use a fast fluidized bed reactor has been proposed to crack inferior heavy oil.Research of catalytic cracking reaction in a fast fluidized bed reactor had been carried out by using the feed of No.2 FCC unit of SINOPEC Jinan Company,from which the residuum high-selectivity catalytic cracking technology(RTC-G)had been formed.The research indicated that in comparison with the riser reactor,the yield of LPG and gasoline is 2.33 percentage points and 0.35 percentage point higher,the yield of dry gas is 0.34 percentage point lower by using the fast fluidized bed reactor.Meanwhile,both product conversion and selectivity of high-valued product have competitive advantages.The yield of LPG and propylene from inferior heavy oil could respectively reach 25.52%and 11.84%when appropriate catalyst is used.
作者
白风宇
张执刚
龚剑洪
Bai Fengyu;Zhang Zhigang;Gong Jianhong(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2022年第8期11-15,共5页
Petroleum Processing and Petrochemicals
关键词
催化裂化
快速流化床
汽油
液化气
丙烯
catalytic cracking
fast fluidized bed
gasoline
liquefied petroleum gas
propylene
