A process for offgas absorption and purification of 1,2-butylene oxide

被引：0

作者：

Li M. ^{[1
]}

Hu S. ^{[1
]}

Shi D. ^{[1
]}

Zhao P. ^{[1
]}

Gao R. ^{[1
]}

Li J. ^{[2
]}

机构：

[1] State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai

[2] School of Petrochemical Engineering, Changzhou University, Jiangsu, Changzhou

来源：

Huagong Xuebao/CIESC Journal | 2023年 / 74卷 / 04期

关键词：

1,2-butylene oxide; absorption; ethylbenzene hydroperoxide process; extractive distillation;

D O I：

10.11949/0438-1157.20221564

中图分类号：

学科分类号：

摘要：

In view of the difficulty of recovering 1,2-butylene oxide (BO) contained in tail gas in ethylbenzene hydroperoxide 1,2-butylene oxide (EBHP) plant, a novel absorption process for BO recovery with extraction solvent and extractive distillation (as desorption column) was proposed in this work, in that the reaction of both BO non-catalyzed hydrolysis reaction was considered. Meanwhile, the separation efficiency affected from solvent was characterized and solved based on the characteristics of liquid-liquid split for 1,2-butylene glycol (12BDO) and extraction solvent mixture at certain condition. The simulation and design optimization for the full process using Aspen Plus package with NRTL thermodynamic model were carried out. The influence of the main technological parameters, such as solvent ratio, the number of theoretical plates and the feed temperature of solvent was discussed. The results show that the new process has a recovery rate of 99.99% (mass) for butylene oxide, which has practical application value for the production capacity improvement of butylene oxide industrial equipment, energy saving and consumption reduction, and volatile organic compounds (VOCs) treatment. © 2023 Materials China. All rights reserved.

引用

页码：1607 / 1618

页数：11

共 30 条

[1] Liu Y F, Huang K L, Peng D M, Et al., Characterization and terpolymerization of carbon dioxide/1, 2-butylene oxide/ε-caprolactone, Acta Polymerica Sinica, 9, pp. 816-821, (2007)
[2] Beshah K, Campbell R, Dan F, Et al., Insights into the behavior of ethylene oxide-1, 2-epoxybutane diblock copolymers in water as a function of temperature and the presence of colloidal silica, Journal of Colloid and Interface Science, 581, pp. 102-111, (2021)
[3] Liu C L, Liu Y J, Yi J, Et al., Selective hydrogenation of 1, 2-epoxybutane to n-butanol, Industrial Catalysis, 17, 11, pp. 31-33, (2009)
[4] Jin G J, Gao H X, Kang C J, Et al., Production method of epoxybutane
[5] Zhou L J, Wu M L, Chen W N, Et al., Method for preparing epoxybutane through butene epoxidation
[6] Wu M L, Zhou L J, Chen W N, Et al., Method for preparing epoxy butane
[7] Jin G J, Kang C J, Gao H X, Et al., Method for producing epoxybutane: 105218485B
[8] Huang D P, Xing Y H., Study on preparation of 1, 2-butylene oxide by oxidation of 1-butylene with ethylbenzene hydroperoxide, Chemical Propellants & Polymeric Materials, 18, 3, pp. 49-52, (2020)
[9] Yaws C L., The Yaws Handbook of Vapor Pressure: Antoine Coefficients, (2015)
[10] Steele W V, Chirico R D, Knipmeyer S E, Et al., Vapor pressure of acetophenone, (±)-1, 2-butanediol, (±)-1, 3-butanediol, diethylene glycol monopropyl ether, 1, 3-dimethyladamantane, 2-ethoxyethyl acetate, ethyl octyl sulfide, and pentyl acetate, Journal of Chemical & Engineering Data, 41, 6, pp. 1255-1268, (1996)

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