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重油催化裂化反应工艺技术创新
高金森,王刚,卢春喜,徐春明
0
(中国石油大学重质油加工国家重点实验室,北京 102249)
摘要:
重油催化裂化(FCC)工艺中,反应器内多相流动规律和精细数学描述是关键。基于湍流气固两相流理论和裂化反应集总动力学基础研究,详细描述和刻画FCC提升管反应器内流动传热过程及裂化反应历程,并创新性地提出以最大限度提高轻质油收率和生产清洁汽油为目标的催化裂化工艺的发展方向,应按照平行—顺序反应历程要求实现反应和转化过程的“分区调控”,并根据烃分子“竞争吸附”和反应特性的差异匹配催化环境。
关键词:  重油催化裂化  提升管反应器  集成创新  多区协控  分区转化
DOI:10.3969/j.issn.1673-5005.2013.05.026
投稿时间:2013-06-08
基金项目:国家自然科学基金项目(21176252);国家科技支撑计划项目(2012BAE05B02)
Technical innovation of fluid catalytic cracking for heavy oil processing
GAO Jin-sen,WANG Gang,LU Chun-xi,XU Chun-ming
(State Key Laboratory of Heavy Oil Processing in China University of Petroleum, Beijing 102249, China)
Abstract:
Facing the challenge of heavy oil processing, the chemical engineering details of flow characteristics, heat transfer in fluid catalytic cracking (FCC) riser reactor and the mechanism of cracking reaction, were particularly described, which were based on the fundamental research of turbulent gas-solid two-phase flow and lumped kinetics theories. In order to maximize the light oil yield and obtain clean gasoline, a new idea of "zoning-regulation" was proposed according to the parallel-sequential reaction mechanism and competing-adsorption between different hydrocarbons. Then the reaction performances of feedstocks with different properties were met by their optimal catalytic conditions. In view of the above works, a series of processing or new technologies matched by the novel structures or special equipments were successfully developed.
Key words:  heavy oil catalytic cracking  riser reactor  integrated innovation  multi-zone cascade-control  partition transformation
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