fulltext.study @t Gmail

K-promoted Mo/Co- and Mo/Ni-catalyzed Fischer–Tropsch synthesis of aromatic hydrocarbons with and without a Cu water gas shift catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
39637 45829 2014 7 PDF Available
Title
K-promoted Mo/Co- and Mo/Ni-catalyzed Fischer–Tropsch synthesis of aromatic hydrocarbons with and without a Cu water gas shift catalyst
Abstract

•Catalysts were developed for the conversion of H2/CO into aromatic hydrocarbons.•Mo/Ni or Mo/Co, both alone and used with a WGS catalyst, exhibited good activity.•Tetra- and penta-methylbenzene made up over 80% of the collected liquid products.•The catalyst recyclability was good through three cycles.•The WGS catalyst improves CO conversion and H2 use efficiency.

The catalyst systems Mo/Co/K/ZSM-5 and Mo/Ni/K/ZSM-5, alone and with the added copper-based water gas shift catalyst, were used for the conversion of two CO/H2 ratios in a batch reactor. GC analysis of the gas phase was used to determine CO conversion while GCMS and NMR studies were used to characterize the liquid products formed and liquid product selectivities. The liquids were hydrocarbons consisting mainly of alkyl substituted benzenes. Methyl substitution in the alkyl benzenes in the product liquid ranged from an average of 1.3 to 4.5 methyls per ring depending on reaction conditions and reactant gas mole ratios. The additional presence of the WGS catalyst significantly increased CO conversion in the reactions taking place at 280 °C from ∼25% to ∼90% while increasing selectivity toward higher average methyl substitution. Similar conversions and selectivities were observed with both a bio-syngas and a 50/50 mixture of H2 and CO.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (139 K)Download as PowerPoint slide

Keywords
Fischer–Tropsch; Biofuel; Synthesis gas conversion; Water gas shift; Molybdenum; Alkyl benzene synthesis
First Page Preview
K-promoted Mo/Co- and Mo/Ni-catalyzed Fischer–Tropsch synthesis of aromatic hydrocarbons with and without a Cu water gas shift catalyst
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 480, 20 June 2014, Pages 93–99
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