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Article
Development of membrane reactor for epoxidation of propylene to propylene oxide in a single step
Journal-The Institution of Engineers, Malaysia (2006)
  • Sugeng Triwahyono, University Technology Malaysia
  • Aishah Abdul Jalil, University Technology Malaysia
  • Hadi Nur, University Technology Malaysia
  • Halimaton Hamdan, University Technology Malaysia
  • Masayoshi Kobayashi
Abstract

The epoxidation of propylene to propylene oxide in a heterogeneous system was studied by using a Micro Porous Glass (MPG) membrane reactor immobilised with cesium-silver (Cs-Ag) catalysts. For a quantitative evaluation of the membrane reactor efficiency to produce a propylene oxide, three different reactor systems were compared by using a diffusion flow reactor (DFR), convection flow reactor (CFR) and plug flow reactor (PFR). The selectivity of propylene oxide for DFR, CFR, and PFR were evaluated as 1-18 %, 12-14 %, and 1.5-4 % respectively at 423-523 K, and the CFR was observed to be the most suitable reactor for epoxidation of propylene to propylene oxide because of a reaction stability. The steady state rate analysis of CFR consistently proposed the Langmuir-Hinshelwood model equation based on two different active sites adsorption for the synthesis of propylene oxide and a competitive adsorption on a single active site for the synthesis of carbon dioxide. At 503 K, the selectivity of p ropylene oxide was widely shifted from 11.2-17.5 % depending on the total reactant flow rate in the membrane pores, as flow rate is 50-150 cm3/min, indicating the convection flow in the pore to contribute to a selective growth of propylene oxide.

Keywords
  • CFR,
  • Cs-Ag/MPG Membrane Reactor,
  • Epoxidation of Propylene
Disciplines
Publication Date
September, 2006
Citation Information
Sugeng Triwahyono, Aishah Abdul Jalil, Hadi Nur, Halimaton Hamdan, et al.. "Development of membrane reactor for epoxidation of propylene to propylene oxide in a single step" Journal-The Institution of Engineers, Malaysia Vol. 67 Iss. 3 (2006)
Available at: http://works.bepress.com/hadi_nur/26/