Comparison of a monolith and a confined Taylor flow (CTF) reactor for propene epoxidation
File(s)
Accepted version
Author(s)
Shin, Sang Baek
Chadwick, David
Type
Journal Article
Abstract
Heterogeneous catalytic epoxidation of propene to propene oxide with hydrogen peroxide was investigated in a monolith and a confined Taylor flow (CTF) reactor in which titanium silicalite (TS-1) catalyst was coated on the walls. The influence of gas and liquid superficial velocity on the hydrodynamic characteristics of the monolith and CTF reactor was also investigated under Taylor flow regime at atmospheric and high pressure. The reactors showed distinctly different hydrodynamic properties which in turn led to different performance for propene epoxidation. The production rate of propene oxide was higher in the monolith reactor due to its larger catalyst coating area, larger mass-transfer surface area and more frequent recycling of liquid flow. A variation of reactor column structures confirmed that the propene oxide production was highly dependent on the catalyst coating area and cross-sectional area of the reactor column. High operating pressure made a significant impact on the length of Taylor bubbles and the propene oxide production rate was found to increase in proportion to the operating pressure.
Date Issued
2018-02-12
Date Acceptance
2018-02-07
Citation
Chemical Engineering and Processing: Process Intensification, 2018, 125, pp.173-182
ISSN
0255-2701
Publisher
Elsevier
Start Page
173
End Page
182
Journal / Book Title
Chemical Engineering and Processing: Process Intensification
Volume
125
Copyright Statement
© 2018 Elsevier B.V. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000429890900019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/E009999/1
Subjects
Science & Technology
Technology
Energy & Fuels
Engineering, Chemical
Engineering
Propene oxide
Hydrogen peroxide
Titanium silicalite (TS-1)
Epoxidation
Confined Taylor flow (CIF) reactor
Monolith reactor
PEROXIDE HPPO PROCESS
LIQUID 2-PHASE FLOW
HYDROGEN-PEROXIDE
VERTICAL TUBES
TITANIUM SILICALITE
PATTERN TRANSITIONS
PROPYLENE-OXIDE
MASS-TRANSFER
TS-1 ZEOLITE
SLUG FLOW
Publication Status
Published
Date Publish Online
2018-02-12