NDLI: Gold modified cobalt-based Fischer-Tropsch catalysts for conversion of synthesis gas to liquid fuels

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Frontiers of Chemical Engineering in China : Volume 7, Issue 2, June 2013

Frontiers of Chemical Engineering in China : Volume 7, Issue 1, March 2013

Frontiers of Chemical Engineering in China : Volume 6

Frontiers of Chemical Engineering in China : Volume 5

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Frontiers of Chemical Engineering in China : Volume 2

Frontiers of Chemical Engineering in China : Volume 1

Gold modified cobalt-based Fischer-Tropsch catalysts for conversion of synthesis gas to liquid fuels

Content Provider	Springer Nature Link
Author	McCue, Alan J. Aponaviciute, Jura Wells, Richard P. K. Anderson, James A.
Copyright Year	2013
Abstract	The addition of Au as a promoter/modifier for alumina supported Co catalyst has been studied by combined in-situ high temperature, high pressure Fourier transform infrared (FTIR) and on-line gas chromatography. The combination of these tools permitted the state of the active catalyst surface to be monitored while following the elution of reaction products during the first 5–7 h on stream of the catalyst. The catalysts under study were a 10%Co/Al$_{2}$O$_{3}$ and a 2.5%Au/10%Co/Al$_{2}$O$_{3}$. Samples were characterised before use using Raman and temperature programmed reduction (TPR). During the initial stages of reaction, hydrocarbons were built up on the surface of the catalyst as monitored by FTIR and the nature and amount of these species were assessed in terms of CH$_{2}$/CH$_{3}$ ratio and the density of these alkyl fragments by employing absorption coefficients for the individual components. The nature and reducibility of the Co particles were modified by the presence of Au while the later also shifted the CO/H$_{2}$ balance by acting as an effective water-gas shift catalyst during the early stages of reaction. This characteristic was lost during reaction as a consequence of redistribution of the two metallic phases.
Starting Page	262
Ending Page	269
Page Count	8
File Format	PDF
ISSN	20950179
Journal	Frontiers of Chemical Engineering in China
Volume Number	7
Issue Number	3
e-ISSN	20950187
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-07-02
Publisher Institution	Chinese Universities
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	gold modified catalyst conversion of synthesis gas Industrial Chemistry/Chemical Engineering Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering

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