Simulation of Coal Gasification in Texaco Gasifier: Kinetics-Based Aspen Plus Model
Publication: Journal of Energy Engineering
Volume 148, Issue 3
Abstract
A kinetic model of coal gasification in a Texaco gasifier was developed using the software Aspen Plus, and the model was validated using experimental data from previously reported research. The effects of the gasification temperature, use of steam () or carbon dioxide () as the gasification agent (GA), and the gasification agent/carbon molar ratio (GA/C) on the composition, net emissions, and molar ratio of the resulting syngas were evaluated. The results showed that for both and , CO was preferentially generated at high temperatures, whereas and were dominant at low temperatures, although the carbon conversion was higher and the net emissions lower at high temperatures. On the other hand, the concentration of was higher when was employed as the GA, reaching 49% when the ratio was 2.0, but the concentration of CO was higher with as the GA, reaching 72% at a ratio of 2.0. The net emissions and the ratio were lower with and higher with as the GA. The concentration of CO in the syngas was the highest (72%) when the temperature was 1,600 K and the ratio was 0.4, making it suitable as a raw material for the production of formic acid. The results of this study offer guidelines for the optimization of the operating parameters for entrained flow gasification and the application of and gasification technology.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This work was not financially supported.
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Published In
Journal of Energy Engineering
Volume 148 • Issue 3 • June 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Oct 6, 2021
Accepted: Dec 14, 2021
Published online: Feb 22, 2022
Published in print: Jun 1, 2022
Discussion open until: Jul 22, 2022
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