Selectivity engineering with hybrid reactive distillation column: Mixtures containing inerts and multi-azeotropes

被引：0
作者：
Singh D. [1 ]
Dutta A. [1 ]
Gaur A. [1 ]
Ul Hasan S. [1 ]
机构：
[1] Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad
来源：
Ul Hasan, Shabih (shasan@mnnit.ac.in) | 2018年 / Italian Association of Chemical Engineering - AIDIC卷 / 69期
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D O I：
10.3303/CET1869104
中图分类号：
学科分类号：
摘要：
Reactive Distillation (RD) which combines reaction and distillation can be effectively used to get desired selectivities in multi-reaction systems. In case of azeotropic systems, nonideal vapor-liquid equilibrium and distillation boundaries are responsible for the contraction of the feasible reactive stage composition region required for the design of hybrid RD column. In the present study, we show that if the mixture contains inert as well then this feasible reactive stage composition region reduced further and thereby decreases the feasible design options of desired selectivity in multireaction systems. Therefore, an attempt is made here, to developed a conceptual design algorithm which is based on combined graphical-simulation approach and attainable region concepts. The developed methodology successfully finds at least one feasible design of hybrid RD column to give desired selectivity. Method gives excellent starting values for rigorous simulations suited to industrial applications. © Copyright 2018, AIDIC Servizi S.r.l.
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页码：619 / 624
页数：5
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  • [1] Agarwal V., Thotla S., Mahajani S.M., Attainable regions of reactive distillation. Part I. Single reactant non-azeotropic systems, Chem. Eng. Sci., 63, 11, pp. 2946-2965, (2008)
  • [2] Agarwal V., Thotla S., Mahajani S.M., Attainable regions of reactive distillation. Part II. Single reactant azeotropic systems, Chem. Eng. Sci., 63, 11, pp. 2928-2945, (2008)
  • [3] Amte V., Sriharsha N., Malik R.K., Mahajani S., Attainable regions of reactive distillation - Part III. Complex reaction scheme: Van de vusse reaction, Chem. Eng. Sci., 66, 11, pp. 2285-2297, (2011)
  • [4] Amte V., Gaikwad R., Malik R.K., Mahajani S., Attainable regions of reactive distillation - Part IV. Inclusion of multistage units for complex reaction schemes, Chem. Eng. Sci., 68, pp. 166-183, (2012)
  • [5] Gadewar S.B., Malone M.F., Doherty M.F., Feasible region for a countercurrent cascade of vapor-liquid CSTRs, AIChE J., 48, pp. 800-814, (2002)
  • [6] Glasser D., Hildebrandt D., Crowe C., A geometric approach to steady flow reactors: The attainable region and optimization in concentration space, Ind. Eng. Chem. Res., 26, pp. 1803-1810, (1987)
  • [7] Hasan S.U., Malik R.K., Mahajani S., Selectivity engineering with single-feed hybrid reactive distillation columns, Chemical Engineering Science, 99, pp. 324-334, (2013)
  • [8] Hasan S.U., Mahajani S., Malik R.K., A conceptual design algorithm for single-feed hybrid reactive distillation column involving azeotropic systems, Computer Aided Chemical Engineering, 32, pp. 313-318, (2013)
  • [9] Hasan S.U., Mahajani S., Malik R.K., Selectivity engineering with simple and complex hybrid reactive distillation columns, Industrial and Engineering Chemistry Research, 53, pp. 18526-18538, (2014)
  • [10] Hasan S.U., Mahajani S., Malik R.K., Selectivity engineering with single feed multi-side draw hybrid reactive distillation columns, Chemical Engineering Journal, 278, pp. 479-491, (2015)
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