隔壁塔应用于戊烷发泡剂生产工艺的模拟与优化  

SIMULATION AND OPTIMIZATION OF DIVIDING WALL COLUMN APPLIED IN THE PRODUCTION OF PENTANE FOAMING AGENT

作　　者：张振宇 赵成义 潘奇 武宾魁 孙兰义[1] Zhang Zhenyu;Zhao Chengyi;Pan Qi;Wu Binkui;Sun Lanyi(State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao,Shandong 266580;SINOPEC Maoming Company)

机构地区：[1]中国石油大学(华东)重质油全国重点实验室,山东青岛266580 [2]中国石化茂名分公司

出　　处：《石油炼制与化工》2025年第4期167-176,共10页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金面上项目(22078361)。

摘　　要：以轻石脑油生产戊烷发泡剂(PFA)同时副产液化石油气(LPG)的装置为研究对象,设计了常规双塔(DC)工艺、上分隔壁塔(DWC-U)工艺、中分隔壁塔(DWC-M)工艺和进料预热的中分隔壁塔(FP-DWC-M)工艺。以年总费用(TAC)、CO_(2)排放量(E_(CO_(2)))和热力学效率(η)为目标,使用第二代非支配遗传算法(NSGA-Ⅱ)对工艺参数进行多目标优化,获取帕累托前沿解。结果表明:应用DWC和进料预热可以提高经济效益和环境效益,改善精馏塔内组分返混;FP-DWC-M工艺具有最佳的经济效益和环境效益,与DC工艺相比,其TAC和E CO_(2)分别减少14.3%和23.8%。Using the device unit produces pentane foaming agent from light naphtha and produces liquefied petroleum gas(LPG)as a byproduct as the research object,the conventional double column(DC)process,upper dividing wall column(DWC-U)process,middle dividing wall column(DWC-M)process,and feed preheated middle dividing wall column(FP-DWC-M)process were designed.Using total annual cost(TAC),CO_(2) emissions(E_(CO_(2))),and thermodynamic efficiency(η)as objectives,the second-generation non-dominated sorting genetic algorithm(NSGA-Ⅱ)was employed for multi-objective optimization of process parameters to obtain Pareto front solutions.The results indicate that the application of DWC and feed preheating can improve economic and environmental benefits and reduce component remixing within the distillation column.The FP-DWC-M process offers the best economic and environmental benefits,with TAC and E CO_(2) reductions by 14.3%and 23.8%,respectively,compared to the DC process.

关 键 词：戊烷发泡剂 隔壁塔 精馏 多目标优化 节能 

分 类 号：TQ2[化学工程—有机化工]