fulltext.study @t Gmail

The effect of surface acidic and basic properties of highly loaded Co catalysts on the Fischer–Tropsch synthesis

Paper ID Volume ID Publish Year Pages File Format Full-Text
51251 46836 2012 4 PDF Available
Title
The effect of surface acidic and basic properties of highly loaded Co catalysts on the Fischer–Tropsch synthesis
Abstract

Highly loaded cobalt catalysts (80% by weight) with different supports (SiO2, Al2O3, ZrO2 and MgO) were prepared by the co-precipitation technique for Fischer–Tropsch synthesis (FTS). Microcalorimetric adsorptions of NH3, CO2, CO and H2 showed that the surface acidity/basicity significantly affected the surface properties of supported Co, as evidenced by the changes of strengths of adsorption of CO and H2 on Co, which in turn affected the FTS performance. The appropriate ratio (~ 1.2) of heats for the adsorption of CO and H2 on Co seemed important in determining the FTS activity.

Graphical abstractThe catalytic performances of FTS reactions on Co were found to be significantly affected by the surface acidic and basic properties of supports, which influenced the strengths of adsorption of CO and H2 on supported Co. The appropriate ratio of heats for the adsorption of CO and H2 seemed to be important for supported Co to exhibit the high FTS activities for the synthesis of heavy hydrocarbons.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Highly loaded cobalt catalysts were prepared for Fischer–Tropsch synthesis (FTS). ► The FTS activities on Co were significantly affected by supports. ► Surface acidity and basicity of supports affected the adsorption of CO and H2 on Co. ► Relative adsorption strengths of CO and H2 on Co affected FTS activity.

Keywords
Fischer–Tropsch synthesis; Highly loaded cobalt catalysts; Support effect; Surface acidity–basicity; Microcalorimetric adsorption
First Page Preview
The effect of surface acidic and basic properties of highly loaded Co catalysts on the Fischer–Tropsch synthesis
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: Catalysis Communications - Volume 28, 5 November 2012, Pages 155–158
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