Non-isothermal simulation of cyclohexane dehydrogenation in an inert membrane reactor with catalytic pellets in the feed-side chamber

Hong Sung Yang, Cheng Tung Chou

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4 Scopus citations

Abstract

A mathematical model is presented to simulate the performance of a non-isothermal inert membrane reactor with catalytic pellets in the feed-side chamber (IMRCF). The simulation takes into account the various heat exchanges that take place inside the reactor. The model consists of the full set of partial difference equations that describe the conservation of mass, momentum, energy and chemical species, coupled with chemical kinetics and appropriate boundary conditions for the physical problem. The set of equations is solved by finite difference method. The model is applied to investigate the endothermic dehydrogenation of cyclohexane in the IMRCF, where a permselective Vycor glass membrane is used. The simulation results show that the conversion of cyclohexane for non-isothermal IMRCF at the temperature of 550 K and below is higher than the equilibrium conversion. On the contrary, when the temperature is 570 K and above, the conversion will be lower than the equilibrium conversion. The heat effects have a greater influence on the IMRCF.

Original languageEnglish
Pages (from-to)227-235
Number of pages9
JournalJournal of the Chinese Institute of Chemical Engineers
Volume39
Issue number3
DOIs
StatePublished - May 2008

Keywords

  • Cyclohexane dehydrogenation
  • Membrane reactor
  • Non-isothermal simulation
  • Vycor glass membrane

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