LAPSE:2023.28034
Published Article
LAPSE:2023.28034
Conceptual Design Development of Coal-to-Methanol Process with Carbon Capture and Utilization
Siddig S. Khalafalla, Umer Zahid, Abdul Gani Abdul Jameel, Usama Ahmed, Feraih S. Alenazey, Chul-Jin Lee
April 11, 2023
Methanol is a clean fuel and an important feedstock for the petrochemical industry. Conventionally, the coal-to-methanol process generates a substantial amount of CO2 emissions with a low yield of methanol. In this study, we propose the conceptual design development of coal-to-methanol process using captured CO2 from the gasification plant by implying process intensification. The base case and three alternative designs have been developed using the Aspen Plus to analyze the process performance. The four designs have been compared in terms of their energy consumption, economics, methanol production rate, and carbon emissions while maintaining the gasifier operation conditions, sulfur content in the syngas, and stoichiometric number at the methanol synthesis reactor. Among the developed designs, the most feasible design requires an energy requirement and product cost of 21.9 GJ and $142.5 per ton of methanol product. The study also showed that the coal-to-methanol process assisted with external hydrogen from electrolysis plant for achieving higher production rates and low CO2 emissions is currently not economical due to the high H2 cost.
Keywords
carbon capture and utilization, coal gasification, economic analysis, Methanol, process simulation
Suggested Citation
Khalafalla SS, Zahid U, Abdul Jameel AG, Ahmed U, Alenazey FS, Lee CJ. Conceptual Design Development of Coal-to-Methanol Process with Carbon Capture and Utilization. (2023). LAPSE:2023.28034
Author Affiliations
Khalafalla SS: Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Zahid U: Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia [ORCID]
Abdul Jameel AG: Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia [ORCID]
Ahmed U: Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Alenazey FS: King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
Lee CJ: School of Chemical Engineering and Materials Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea [ORCID]
Journal Name
Energies
Volume
13
Issue
23
Article Number
E6421
Year
2020
Publication Date
2020-12-04
Published Version
ISSN
1996-1073
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Original Submission
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PII: en13236421, Publication Type: Journal Article
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LAPSE:2023.28034
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doi:10.3390/en13236421
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Apr 11, 2023
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CC BY 4.0
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