fulltext.study @t Gmail

Catalytic vapour phase epoxidation of propene with nitrous oxide as an oxidant: I. Reaction network and product distribution

Paper ID Volume ID Publish Year Pages File Format Full-Text
44079 46002 2007 10 PDF Available
Title
Catalytic vapour phase epoxidation of propene with nitrous oxide as an oxidant: I. Reaction network and product distribution
Abstract

The vapour phase epoxidation of propene with nitrous oxide (N2O) was experimentally investigated in a fixed bed reactor using a CsOx/FeOy/SiO2 catalyst in a broad range of residence times. A complex reaction network was derived from the trends of product selectivities as function of the conversion. For the determination of the reaction paths, not only propene but also its oxidation products, propylene oxide (PO) and propionaldehyde (PA), were used as reactants. The selectivity to PO was found to be limited due to fast side reactions, like PO isomerisation reactions and, in particular, the formation of higher molecular weight products (HMP) mainly present as carbonaceous deposits (coke) on the catalyst. The amount of HMP and coke was quantified through several methods and both were identified as the major byproducts. Although PO is formed with more than 60% selectivity among the directly identified vapour phase products, the maximum selectivity is only about 30% when taking the HMP into account.

Graphical abstractA complex reaction network was derived from experiments using propene, propylene oxide (PO), and propionaldehyde as reactants. Fast side reactions, especially to higher molecular weight products (HMP) limit the selectivity to PO. Although PO is formed with more than 60% selectivity among the directly identified vapour phase products, the maximum selectivity is only about 30% when taking the HMP into account.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Reaction engineering; Partial oxidation; Propylene oxide; Propionaldehyde; Iron oxide; Silica gel; Reaction network; Carbon balance; Coke
First Page Preview
Catalytic vapour phase epoxidation of propene with nitrous oxide as an oxidant: I. Reaction network and product distribution
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 318, 20 February 2007, Pages 160–169
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us