顺酐溶剂吸收装置工艺参数模拟优化与分析

摘要采用Aspen Plus化工模拟软件10.0版本对顺酐吸收塔的吸收过程进行了模拟计算，考察了反应气进料温度、反应气中顺酐含量、循环吸收剂用量和循环吸收剂中水含量变化对塔顶尾气中顺酐含量和塔釜富顺酐吸收剂中水含量的影响规律。模拟计算结果和装置运行数据对比表明，在相同条件下，模拟值与装置运行值误差小于1%，说明该模拟方法可靠。为确保塔顶尾气中顺酐含量不高于0.02%（质量分数，下同），塔釜富顺酐吸收剂中水含量不高于0.2%，同时降低后续装置操作负荷，模拟优化分析得到吸收塔适宜的工艺参数：反应气的进料温度为108℃，反应气中顺酐含量为2.36%，循环吸收剂的用量为反应气中顺酐质量的3.12倍。

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	黄益平
	孙玉玉
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	岳昌海
	李凭力

关键词：顺酐吸收装置溶剂吸收邻苯二甲酸二丁酯模拟优化

Abstract： Aspen Plus 10.0 has been used to simulate the absorption process of the maleic anhydride absorption column. The influence of the feed temperature of the reactant gas, the maleic anhydride content in the reactant gas, the amount of circulating absorbent, and the water content in the circulating absorbent on the maleic anhydride content in the tail gas of the column and the water content of the maleic anhydride-rich absorbent in the bottom of the column were investigated. The comparison between the simulated calculation results and the device operating data show that under the same conditions, the error between the simulated value and the device operating value is less than 1%, indicating that the simulation method is reliable. In order to ensure that the maleic anhydride content in the tail gas at the top of the column is not higher than 0.02%, the water content in the column bottom rich maleic anhydride absorbent is not higher than 0.2%, and the operation load of subsequent devices is reduced, the process parameters of the absorption column are optimized:the feed temperature of the reaction gas is 108℃, the content of maleic anhydride in the reaction gas is 2.36%, and the amount of circulating absorbent is 3.12 times of maleic anhydride in the reaction gas.

Keywords： maleic anhydride absorption column solvent absorption dibutyl phthalate simulation optimization

Received 2020-11-16;

Corresponding Authors: 孙玉玉,E-mail:sunyuyu028@126.com。 Email: sunyuyu028@126.com

About author: 黄益平(1985-),男,博士,主要从事有机化工装置过程强化相关工作。

引用本文:

黄益平, 孙玉玉, 吴丹, 岳昌海, 李凭力.顺酐溶剂吸收装置工艺参数模拟优化与分析[J]. 化学工业与工程, 2021,38(5): 88-95

Huang Yiping, Sun Yuyu, Wu Dan, Yue Changhai, Li Pingli.Simulation and Optimization of Maleic Anhydride Absorption Column[J]. Chemcial Industry and Engineering, 2021,38(5): 88-95

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