Graduation Semester and Year
2021
Language
English
Document Type
Dissertation
Degree Name
Doctor of Philosophy in Chemistry
Department
Chemistry and Biochemistry
First Advisor
Frederick M MacDonnell
Second Advisor
Brian H Dennis
Third Advisor
Peter Kroll
Abstract
The research in this dissertation consists of a novel catalyst design which is aimed at helping manage the temperature instabilities and heat-transfer within a catalyst particle and maintaining an isothermal temperature distribution throughout the catalyst bed, with the goal of improving control on the rate of reactions and tuning the chain propagation that leads to having high yields of desired products (liquid alkanes C5-C22) while suppressing undesirable competitive reactions (WGS, Boudouard) and consecutive byproduct formation (alpha-Olefin, Oxygenates, and tail gas C1-C4) during the Fischer-Tropsch synthesis (FTS). Comparing FTS performance of the thermally modified catalysts and core-shell (CS) composite structure catalyst with a conventional catalysts and egg-shell (ES) catalyst resulted in higher productivity with a maximized oil selectivity in thermally modified and core-shell catalysts with tither product distribution due to the better thermal management of the catalyst bed in such a highly exothermic reaction.
Keywords
Gas to liquid process, Fischer-Tropsch synthesis, Thermal management, Catalyst, Clean fuel
Disciplines
Chemistry | Physical Sciences and Mathematics
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Jafari Ghoreshi, Seyed Amir, "IMPROVED FISCHER-TROPSCH SYNTHESIS BY THERMAL MANAGEMENT OF THE CATALYST" (2021). Chemistry & Biochemistry Dissertations. 268.
https://mavmatrix.uta.edu/chemistry_dissertations/268
Comments
Degree granted by The University of Texas at Arlington