Catalytic cyclic distillation - A novel process intensification approach in reactive separations

Cǎtǎlin Pǎtruţ, Costin Sorin Bîldea, Anton A. Kiss

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Cyclic distillation uses a periodic operation mode that leads to key benefits, such as increased column throughput, lower energy requirements and much higher separation performance. By integrating chemical reactions with cyclic distillation, a novel process intensification approach is possible - catalytic cyclic distillation - which outperforms classic reactive distillation.This paper is the first to describe the catalytic cyclic distillation process and to develop a rigorous mathematical model. By means of a case study involving a simple reaction system, the model is used to demonstrate the key benefits of this operation mode. In addition, the synthesis of dimethyl ether by catalytic cyclic distillation is considered, for which a design algorithm is suggested. Investigation of the column behavior reveals the coexistence of two periodic states, one of them being unstable.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalChemical Engineering and Processing: Process Intensification
Volume81
DOIs
Publication statusPublished - Jul 2014

Keywords

  • Case studies
  • Dimethyl ether
  • Process design
  • Process intensification
  • Reactive separation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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