Reactive Distillation for the Production of Cyclohexanol

IF 1.6 4区生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Chemical and Biochemical Engineering Quarterly Pub Date : 2021-01-01 DOI:10.15255/CABEQ.2020.1863

Dahai Sun, Hui Tian, J. Sun, W. Xu

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引用次数: 1

Abstract

Cyclohexanol is an organic chemical intermediate product widely used in chemical industry and commonly produced by cyclohexene hydration. Because of the low mutual solubility of cyclohexene and water, the reaction is limited by chemical equilibrium, which has the disadvantage of low conversion of cyclohexene. In this paper, the hydration reaction of cyclohexene catalysed by A-36 cation exchange resin catalyst was analysed by Aspen Plus V8.6 simulation software in the presence of isophorone as cosolvent. The process model of synthesising cyclohexanol by catalytic distillation was verified by process experiments. The simulation experiments were carried out using the process model, and suitable operating conditions of the catalytic distillation column were obtained. These are: ketene feed ratio 1.5, alkene/water ratio 0.5, distillation stage trays 5, reaction stage trays 12, stripping stage trays 6, cyclohexene feed at the 18th tray, water and isophorone feed at the 5th tray, reflux ratio 3, feed ratio (D/F) 0.25. Under these operating conditions, the conversion of cyclohexene can reach 40.63 %.

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反应精馏法生产环己醇

环己醇是一种广泛应用于化工行业的有机化工中间体产品，通常采用环己烯水化法生产。由于环己烯与水的相互溶解度低，反应受到化学平衡的限制，具有环己烯转化率低的缺点。本文采用Aspen Plus V8.6模拟软件，对A-36阳离子交换树脂催化剂催化环己烯在异佛尔酮为助溶剂下的水化反应进行了分析。通过工艺实验验证了催化精馏法合成环己醇的工艺模型。利用该工艺模型进行了模拟实验，得到了适宜的催化精馏塔操作条件。这些是:烯酮进料比1.5，烯烃/水比0.5，蒸馏级塔板5，反应级塔板12，汽提级塔板6，环己烯进料在第18塔板，水和异佛尔酮进料在第5塔板，回流比3，进料比(D/F) 0.25。在此操作条件下，环己烯的转化率可达40.63%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical and Biochemical Engineering Quarterly 工程技术-工程：化工

CiteScore

2.70

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： The journal provides an international forum for presentation of original papers, reviews and discussions on the latest developments in chemical and biochemical engineering. The scope of the journal is wide and no limitation except relevance to chemical and biochemical engineering is required. The criteria for the acceptance of papers are originality, quality of work and clarity of style. All papers are subject to reviewing by at least two international experts (blind peer review). The language of the journal is English. Final versions of the manuscripts are subject to metric (SI units and IUPAC recommendations) and English language reviewing. Editor and Editorial board make the final decision about acceptance of a manuscript. Page charges are excluded.