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Title: | Development of membrane reactor for epoxidation of propylene to propylene oxide in a single step process |
Authors: | Sugeng, Triwahyono Aishah, A. Jalil Hadi, Nur Halimaton, Hamdan Kobayashi, Masayoshi sugeng@ibnusina.utm.my |
Keywords: | CFR Cs-Ag/MPG membrane reactor Epoxidation of propylene |
Issue Date: | Sep-2006 |
Publisher: | The Institution of Engineers, Malaysia |
Citation: | The Journal of the Institution of Engineers, Malaysia, vol. 67(3), 2006, pages 7-12 |
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 re a c t o r 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 re a c t o r for epoxidation of propylene to propylene oxide because of a reaction stability. The steady state rate analysis of CFR consistently p roposed the Langmuir-Hinshelwood model equation based on two different active sites adsorption for the synthesis of pro p y l e n e 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. |
Description: | Link to publisher's homepage at http://www.myiem.org.my/ |
URI: | http://www.myiem.org.my/content/iem_journal_2006-177.aspx http://dspace.unimap.edu.my/123456789/13742 |
ISSN: | 0126-513X |
Appears in Collections: | IEM Journal |
Files in This Item:
File | Description | Size | Format | |
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007-012_membrane reactor.pdf | 607.69 kB | Adobe PDF | View/Open |
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