MULTI-OBJECTIVE OPTIMIZATION OF MULTI-PRODUCT PLAN FOR FLUID CATALYTIC CRACKING SEPARATION SYSTEM

Abstract

Abstract:

Based on the simulation of a FCC separation system using Aspen Plus software, where the gasoline end point, diesel 95% point, C2 and C3 volume fraction in dry gas and LPG, respectively were used as the constrain conditions, a multi-objective model of maximizing the yield of product, minimizing the energy consumption of separation system is established in consideration of multi-product plan. Multi-objective line-up competition algorithm (MOLCA) was employed to solve the model, and the Pareto front obtained from the model reveals the influence rule of the energy consumption on the yield of product. The results indicate that the optimal compromise solutions of operation parameters are superior to that of real practice.

Key words: FCC separation system, process simulation, multi-product plan, MOLCA, multi-objective optimization

Hong-Jin DAI. MULTI-OBJECTIVE OPTIMIZATION OF MULTI-PRODUCT PLAN FOR FLUID CATALYTIC CRACKING SEPARATION SYSTEM[J]. Petroleum Processing and Petrochemicals, 2016, 47(2): 93-97.

References

[1] In-Su Han, Chang-Bock Chung. Dynamic modeling and simulation of a fluidized catalytic cracking process. PartⅠ：Process modeling[J]. Chemical Engineering Science, 2001, 56：1951-1971. [2] Jia Chunyang, Sohrab Rohani, Arthur Jutan. FCC unit modeling, identification and model predictive control, a simulation study[J]. Chemical Engineering and Processing, 2003, 42：311-325. [3] 许锋,翟炳鑫,罗雄麟. 催化裂化装置分离系统稳态优化及其动态实现[J]. 计算机与应用化学,2011,28(11)：1397-1403. [4] 熊俊文,吕翠英. 催化裂化分馏塔多目标遗传算法优化[J]. 计算机与应用化学, 2006, 23(5)：462-464. [5] 周晓静,吕翠英. 基于改进蚁群算法的催化裂化分馏塔在线多目标优化[J]. 计算机与应用化学, 2009, 26(4)：443-446. [6] 代广超,程明. 催化裂化吸收稳定系统流程模拟与优化[J]. 化学反应工程与工艺, 2012, 28(6)：488-492. [7] 雷杨,张冰剑,魏志强，等. 基于流程模拟的催化裂化吸收稳定系统分析与操作优化[J]. 石油炼制与化工, 2012, 43(1)：94-100. [8] 梁士锋. 催化吸收稳定系统的多目标优化[D]. 天津,天津大学, 2007. [9] 周文娟. 催化裂化主分馏塔和吸收稳定系统工艺模拟与改进研究[D]. 上海, 华东理工大学, 2005. [10] 詹雪兰. 催化裂化主分馏塔和吸收稳定系统的全流程模拟与优化[D]. 上海, 华东理工大学, 2014. [11] Lei Yang, Zhang Binjian, Hou Xiaoqiong et al. A novel strategy for simulating the main fractionator of delayed cokers by separating the desuper- heating process[J]. Chinese Journal of Chemical Engineering, 2013, 21(3)：285-294. [12] 鄢烈祥. 化工过程分析与综合[M]. 北京：化学工业出版社, 2010. 74-79. [13] Yan Liexiang, Ma Dexian. Global optimization of non-convex nonlinear programs using line-up competition algorithm[J]. Computers &Chemical Engineering, 2001, 25(11)：1601-1610. [14] Yan Liexiang, Kun Shen, Shenghua Hu. Solving mixed integer nonlinear programming problems with line-up competition algorithm. Computers and Chemical Engineering, 2004, 28：2647-2657. [15] 刘海燕,史彬,鄢烈祥，等. 基于LCA与NSGA-II的混合算法解多目标优化问题. 计算机与应用化学[J], 2014, 31(12)：1461-1466. [16] 黄冀卓,王湛. 基于遗传算法的抗震钢框架多目标优化设计[J]. 力学学报, 2007, 39(3)：389-397.