Multi-objective optimization of two-stage-riser catalytic pyrolysis for optimal trade-off in product distribution

doi:10.11949/j.issn.0438-1157.20161595

CIESC Journal ›› 2017, Vol. 68 ›› Issue (3): 941-946.DOI: 10.11949/j.issn.0438-1157.20161595

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Multi-objective optimization of two-stage-riser catalytic pyrolysis for optimal trade-off in product distribution

WANG Ping^1,2, YANG Chaohe², TIAN Xuemin¹

1 College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, Shandong, China;
2 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China

Received:2016-11-10 Revised:2016-11-17 Online:2017-03-05 Published:2017-03-05
Contact: 10.11949/j.issn.0438-1157.20161595
Supported by:
supported by the National Natural Science Foundation of China (21606256),the Natural Science Foundation of Shandong Province (ZR2016BQ14) and the Research Program of Application Foundation of Qingdao (16-5-1-10-jch).

面向产品分布协调的两段提升管催化裂解多目标优化

王平^1,2, 杨朝合², 田学民¹

1 中国石油大学(华东)信息与控制工程学院, 山东青岛 266580;
2 中国石油大学(华东)重质油国家重点实验室, 山东青岛 266580

通讯作者: 田学民,tianxm@upc.edu.cn
基金资助:
国家自然科学基金项目（21606256）；山东省自然科学基金项目（ZR2016BQ14）；青岛市应用基础研究计划项目（16-5-1-10-jch）。

Abstract

Abstract:

Based on process characteristics and operation economic demands of heavy oil catalytic pyrolysis in two-stage riser, a multi-objective optimization model, which attempted to maximize yields of propylene and gasoline as well as to minimize yield of dry gas simultaneously, was developed with consideration of process principle model and various constraints. The model was solved by a standardized normal constraint method to formulate a complete set of uniformly distributed Pareto-optimal solutions. Numerical simulations show that the multi-objective optimization could comprehensively and quantitatively describe optimal trade-off among yields of propylene, gasoline and dry gas, as well as influence of operation variables and constraints on product distribution, which could offer guidelines for optimal operation of TMP process.

Key words: optimization, multi-objective, optimal operation, model, process systems

摘要：

根据两段提升管重油催化裂解过程工艺特点和经济运行要求，基于过程机理模型，考虑多种约束条件，构造了同时最大化丙烯、汽油产量以及最小化干气产量的多目标操作优化问题，并采用标准化法向约束方法求解获得了完整、均匀分布的Pareto最优解。仿真结果表明，多目标优化结果可以定量地描述出丙烯、汽油和干气收率间的最优折中，以及操作变量、约束条件对产品分布的影响，可以为过程优化操作提供指导。

关键词: 优化, 多目标, 操作优化, 模型, 过程系统

CLC Number:

TE624

WANG Ping, YANG Chaohe, TIAN Xuemin. Multi-objective optimization of two-stage-riser catalytic pyrolysis for optimal trade-off in product distribution[J]. CIESC Journal, 2017, 68(3): 941-946.

王平, 杨朝合, 田学民. 面向产品分布协调的两段提升管催化裂解多目标优化[J]. 化工学报, 2017, 68(3): 941-946.

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Multi-objective optimization of two-stage-riser catalytic pyrolysis for optimal trade-off in product distribution

面向产品分布协调的两段提升管催化裂解多目标优化

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