Global analysis of combined reaction distillation processes
Global analysis of combined reaction distillation processes
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组合反应精馏过程的全局分析
DOI:
10.1016/j.compchemeng.2007.04.015
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Robert Weismantel
中科院分区:
文献类型:
--
作者:
Jignesh Gangadwala;Utz–Uwe Haus;Matthias Jach;Achim Kienle;Dennis Michaels;Robert Weismantel
Polyhedral relaxation is a powerful tool for determining global bounds on optimal solutions in chemical process synthesis. Combined reaction distillation processes are considered as a challenging application example. To reduce complexity of the resulting mixed integer linear optimization problems, model reduction by means of wave functions is proposed, and polyhedral relaxations of sigmoidal wave functions in two variables are derived. It is shown that these relaxations provide better approximation quality than approximating the composed functions individually. Further, the concave envelope of such functions is characterized and (nonlinear) convex underestimators are derived. The approximation results are employed in the computation of lower bounds on the vapor flow of a combined reaction distillation process with a metathesis reaction 2B⇋A+C. We restrict computations to a domain around a known local optimum, trading computation time for some of the globality. This still proves a bound on the vapor flow, but for restricted operating conditions of the column.
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影响因子:
4.2
作者:
Jignesh Gangadwala;Achim Kienle;Utz–Uwe Haus;Dennis Michaels;Robert Weismantel
通讯作者:
Robert Weismantel
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
E. Stein;A. Kienle;E. Gilles
通讯作者:
E. Gilles
DOI:
10.1016/j.compchemeng.2007.01.001
发表时间:
2007
期刊:
Comput. Chem. Eng.
影响因子:
--
作者:
Haus U.-U;Michaels D;Seidel-Morgenstern A;Weismantel R.
通讯作者:
Weismantel R.
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
M. Duran;I. Grossmann
通讯作者:
I. Grossmann
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
Fengrong Chen;Robert S. Huss;M. F. Malone;M. Doherty
通讯作者:
M. Doherty