化工学报Issue(9)：3519-3526,8.DOI:10.3969/j.issn.0438-1157.2014.09.029
高效再生催化裂化装置多稳态分析：反应温度开/闭环控制条件对热反馈机制的影响
Multiple steady states of fluid catalytic cracking unit with high-efficiency regenerator:effect of reaction temperature control strategy on heat feedback
摘要
Abstract
Analyses of multiple steady states of a fluid catalytic cracking unit (FCCU) with high-efficiency regenerator with the riser reaction temperature under open loop and closed loop control were performed based on the theory of output multiplicity and input multiplicity. The multiple steady states under these two conditions were determined with respect to the amount of the added CO combustion promoter. The heat removal curve was found monotonously increasing with riser reaction temperature under open loop control, which resulted in the existence of three multiple steady states because of weak coupling between regenerator temperature and riser reaction temperature. On the other hand, the heat feedback of regenerator and riser reactor changed under closed loop control because regenerated catalyst flow rate could be used as an extra measure to compensate the difference between regenerator temperature and riser reaction temperature to enhance coupling between regerator temperature and riser reactor temperature. Multiple steady states would exist only when CO promoter was extremely insufficient. Otherwise, only one steady state existed under current operating condition which avoided multiple steady states with riser reaction temperature under open loop control.关键词
系统工程/过程系统/控制/催化裂化/多稳态Key words
systems engineering/process systems/control/FCCU/multiple steady states分类
能源科技引用本文复制引用
王锐,罗雄麟,许锋..高效再生催化裂化装置多稳态分析：反应温度开/闭环控制条件对热反馈机制的影响[J].化工学报,2014,(9):3519-3526,8.基金项目
国家自然科学基金项目（21006127）；国家重点基础研究发展计划项目（2012CB720500）。@@@@supported by the National Natural Science Foundation of China (21006127) and the National Basic Research Program of China (2012CB720500) （21006127）
