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Design and analysis in modelling reactive separation processes.

机译:反应分离过程建模的设计和分析。

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摘要

This work presents the existence of multiple steady states in equilibrium multistage reactive distillation for methyl tert-butyl ether (MTBE) synthesis. The Rachford-Rice procedure is extended to reactive systems where a continuation analysis was applied using the Damkohler number for an isothermal reactive flash process involving both MTBE and tertiary amyl methyl ether (TAME) mixtures exhibiting Hopf bifurcations. The Extension of this analysis to nonequilibrium models shows the existence of limit points in the case of the TAME mixture and isolas with intersecting branches in the case of the MTBE mixture. New expressions to calculate the nonequilibrium residue composition maps for reactive separation processes incorporating mass transfer effects and design aspects were derived. For MTBE synthesis it was demonstrated that reactive saddle-point azeotrope calculated by equilibrium and nonequilibrium approaches are not the same and for TAME synthesis the nonequilibrium and equilibrium reactive composition curve maps in the limit of reaction equilibrium were obtained.
机译:这项工作提出了用于甲基叔丁基醚(MTBE)合成的平衡多级反应蒸馏中存在多个稳态。 Rachford-Rice程序扩展到反应系统,在该系统中,使用Damkohler数对包括MTBE和叔霍夫分叉的叔戊基甲基醚(TAME)混合物的等温反应闪蒸过程进行了连续分析。将此分析扩展到非平衡模型表明,对于TAME混合物,存在极限点;对于MTBE混合物,具有相交分支的isolas。推导了新的表达式,用于计算结合了传质效应和设计方面的反应分离过程的非平衡残基组成图。对于MTBE合成,证明了通过平衡和非平衡方法计算的反应性鞍点共沸物不相同,对于TAME合成,获得了在反应平衡极限内的非平衡和平衡反应性组成曲线图。

著录项

  • 作者

    Ruiz Mercado, Gerardo J.;

  • 作者单位

    University of Puerto Rico, Mayaguez (Puerto Rico).;

  • 授予单位 University of Puerto Rico, Mayaguez (Puerto Rico).;
  • 学科 Engineering Chemical.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 106 p.
  • 总页数 106
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化工过程(物理过程及物理化学过程);
  • 关键词

  • 入库时间 2022-08-17 11:38:26

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