Simulation and analysis of reactive dividing-wall column for methylal production process

被引:0
|
作者
Yang J. [1 ]
Qi J. [1 ]
Sha Y. [1 ]
机构
[1] Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian
来源
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 03期
关键词
Methylal; Optimal design; Process analysis; Reactive distillation; Reactive dividing-wall column;
D O I
10.11949/j.issn.0438-1157.20180623
中图分类号
学科分类号
摘要
Methylal is an important raw material used for the production of chemical intermediates, solvents, paints and fuel additives, etc. At present, reactive distillation technology is the main method for preparing methylal from methanol and formaldehyde. In this work, the reactive distillation with a dividing-wall column for producing methylal was proposed and simulated. The results show that the preparation of methylal by such a process can avoid the back mixing effect of the middle component in the column and reduce the total cost by 8.09% annually, then significantly improve the economics of the process. © All Right Reserved.
引用
收藏
页码:960 / 968
页数:8
相关论文
共 28 条
  • [1] Masamoto J., Matsuzaki K., Development of methylal synthesis by reactive distillation, Journal of Chemical Engineering of Japan, 27, 1, pp. 1-5, (1994)
  • [2] Kolah A.K., Mahajani S.M., Sharma M.M., Acetalization of formaldehyde with methanol in batch and continuous reactive distillation columns, Industrial & Engineering Chemistry Research, 35, 10, pp. 3707-3720, (1996)
  • [3] Masamoto J., Ohtake J., Kawamura M., Process for producing formaldehyde and derivatives thereof, (1990)
  • [4] Sun J., Li H., Song H., Et al., Synthesis of methylal from methanol and formaldehyde catalyzed by Brønsted acid ionic liquids with different alkyl groups, RSC Advances, 5, 106, pp. 87200-87205, (2015)
  • [5] Yuan Y., Liu H., Imoto H., Et al., Selective synthesis of methylal from methanol on a new crystalline SbRe<sub>2</sub>O<sub>6</sub> catalyst, Chemistry Letters, 29, 6, pp. 674-675, (2000)
  • [6] Liu H., Iglesia E., Selective one-step synthesis of dimethoxymethane via methanol or dimethyl ether oxidation on H<sub>3+n</sub>V<sub>n</sub>Mo<sub>12-n</sub>PO<sub>40</sub> keggin structures, The Journal of Physical Chemistry B, 107, 39, pp. 10840-10847, (2003)
  • [7] Tanaka Y., Yamamoto S., Method of refining methylal, (1997)
  • [8] Wang Q., Yu B., Xu C., Design and control of distillation system for methylal/methanol separation(Ⅰ): Extractive distillation using DMF as an entrainer, Industrial & Engineering Chemistry Research, 51, 3, pp. 1281-1292, (2012)
  • [9] Xia M., Yu B., Wang Q., Et al., Design and control of extractive dividing-wall column for separating methylal-methanol mixture, Industrial & Engineering Chemistry Research, 51, 49, pp. 16016-16033, (2012)
  • [10] Hasse H., Drunsel J.O., Burger J., Et al., Process for the production of pure methylal, (2016)