LAPSE:2023.36045
Published Article
LAPSE:2023.36045
Product Yields Dependency on the Carbide Phase Presence in Cobalt and Iron SBA-15 Catalysts Structure in the Fischer−Tropsch Synthesis
Nikita Sharkov, Zahra Gholami, Ivana Hradecká, Zdeněk Tišler, Josef Šimek
June 9, 2023
The use of carbide catalysts in Fischer−Tropsch synthesis (FTS) is an active area of research, as carbide phases have been shown to improve the stability and performance of catalysts in this reaction. This study compared the catalytic activity and product selectivity of cobalt and iron catalysts supported on SBA-15, with and without a carbide phase and reduction treatment before the reaction. Results showed that the presence of the carbide phase had a noticeable influence on the catalytic behavior of the catalysts, and the reduction of the catalyst with hydrogen also affected the product selectivity. The presence of the carbide phase in non-reduced cobalt catalysts resulted in increased selectivity to liquid phase products, as evidenced by a CO conversion of 37% with 68% selectivity to the products in the liquid phase. The catalytic activity of the iron carbide catalyst for CO dissociation was found to be 38% after reducing the catalyst with hydrogen, leading to the formation of more active sites. The presence of metal carbides and formation of metallic cobalt and iron during the FT reaction and reduction step was found to have a significant effect on the catalytic performance and product selectivity. The findings of this research provide new insights into the role of carbide in the performance of cobalt and iron catalysts in Fischer−Tropsch synthesis.
Keywords
carbide catalyst, CoCx/SBA-15, FeCx/SBA-15, Fischer–Tropsch synthesis
Suggested Citation
Sharkov N, Gholami Z, Hradecká I, Tišler Z, Šimek J. Product Yields Dependency on the Carbide Phase Presence in Cobalt and Iron SBA-15 Catalysts Structure in the Fischer−Tropsch Synthesis. (2023). LAPSE:2023.36045
Author Affiliations
Sharkov N: ORLEN UniCRE, a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic [ORCID]
Gholami Z: ORLEN UniCRE, a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic [ORCID]
Hradecká I: ORLEN UniCRE, a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic; Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
Tišler Z: ORLEN UniCRE, a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic [ORCID]
Šimek J: ORLEN UniCRE, a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic
Journal Name
Processes
Volume
11
Issue
5
First Page
1391
Year
2023
Publication Date
2023-05-04
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr11051391, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2023.36045
This Record
External Link

https://doi.org/10.3390/pr11051391
Publisher Version
Download
Files
[Download 1v1.pdf] (4.5 MB)
Jun 9, 2023
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
172
Version History
[v1] (Original Submission)
Jun 9, 2023
 
Verified by curator on
Jun 9, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.36045
 
Record Owner
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version