Next Article in Journal / Special Issue
Microflow Photochemistry—Photodecarboxylations in Microformats
Previous Article in Journal
Reduced Models in Chemical Kinetics via Nonlinear Data-Mining
Previous Article in Special Issue
Scale-up of the Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization Using Continuous Flow Processing
Article Menu

Export Article

Open AccessArticle
Processes 2014, 2(1), 141-157; doi:10.3390/pr2010141

Enhanced Performance of Oxidation of Rosalva (9-decen-1-ol) to Costenal (9-decenal) on Porous Silicon-Supported Silver Catalyst in a Microstructured Reactor

1
Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
2
Department of Mechanical and Industrial Design Engineering, T.E.I. of Western Macedonia, Kozani 50100, Greece
3
Department of Chemical and Petroleum Engineering, United Arab Emirates University, Al Ain, P.O.Box: 15551, UAE
*
Author to whom correspondence should be addressed.
Received: 24 November 2013 / Revised: 9 January 2014 / Accepted: 16 January 2014 / Published: 29 January 2014
View Full-Text   |   Download PDF [1036 KB, uploaded 29 January 2014]   |  

Abstract

The use of metal-assisted HF chemical etching as a convenient technique to produce a few microns thick porous layer in silicon microchannels was demonstrated. Gas phase selective oxidation of rosalva to its aldehyde (costenal) was performed in glass/silicon microstructured reactors at temperatures of 375–475 °C on silver catalyst which was deposited on both porous and flat silicon surface by sputter-coating. The effects of temperature (375–475 °C), rosalva concentration (1.17%–3.43%), O2 to rosalva ratio (0.5–20) and residence time on the reaction were investigated. The reactivity of rosalva on the porous silicon supported silver was 5.7–6.4 times higher than on the thin film silver catalyst at 450 °C. Furthermore, activation energy for the porous silicon supported silver was lower. Isothermal conditions in the microreactors allowed high conversion and selectivity to be achieved in a wide range of temperature and oxygen concentration. At typical reaction conditions (1.75% rosalva, O2/rosalva = 3, residence time 18 ms and 450 °C), conversion of 97% and selectivity of 95% to costenal was achieved, corresponding to a turnover frequency of 268 h−1.
Keywords: microreactor; porous silicon; oxidation; rosalva; silver catalyst microreactor; porous silicon; oxidation; rosalva; silver catalyst
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Cao, E.; Zuburtikudis, I.; Al-Rifai, N.; Roydhouse, M.; Gavriilidis, A. Enhanced Performance of Oxidation of Rosalva (9-decen-1-ol) to Costenal (9-decenal) on Porous Silicon-Supported Silver Catalyst in a Microstructured Reactor. Processes 2014, 2, 141-157.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Processes EISSN 2227-9717 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top