Thermo-Economic Analysis of Integrated Hydrogen, Methanol and Dimethyl Ether Production Using Water Electrolyzed Hydrogen

Yusra Muazzam, Muhammad Yousaf, Muhammad Zaman, Ali Elkamel (), Asif Mahmood, Muhammad Rizwan and Muhammad Adnan
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Yusra Muazzam: Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad 45650, Pakistan
Muhammad Yousaf: Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad 45650, Pakistan
Muhammad Zaman: Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad 45650, Pakistan
Ali Elkamel: Chemical Engineering Department, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Asif Mahmood: Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad 45650, Pakistan
Muhammad Rizwan: Department of Chemical Engineering, College of Engineering, University of Bahrain, Isa Town Campus, Isa Town P.O. Box 32038, Bahrain
Muhammad Adnan: Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad 45650, Pakistan

Resources, 2022, vol. 11, issue 10, 1-27

Abstract: Carbon capture and utilization is an attractive technique to mitigate the damage to the environment. The aim of this study was to techno-economically investigate the hydrogenation of CO 2 to methanol and then conversion of methanol to dimethyl ether using Aspen Plus ® (V.11, Aspen Technology, Inc., Bedford, Massachusetts 01730, USA). Hydrogen was obtained from alkaline water electrolysis, proton exchange membrane and solid oxide electrolysis processes for methanol production. The major cost contributing factor in the methanol production was the cost of hydrogen production; therefore, the cost per ton of methanol was highest for alkaline water electrolysis and lowest for solid oxide electrolysis. The specific cost of methanol for solid oxide electrolysis, proton exchange membrane and alkaline water electrolysis was estimated to be 701 $/ton, 760 $/ton and 920 $/ton, respectively. Similarly, the specific cost of dimethyl ether was estimated to be 1141 $/ton, 1230 $/ton and 1471 $/ton, using solid oxide electrolysis, proton exchange membrane and alkaline water electrolysis based hydrogen production, respectively. The cost for methanol and dimethyl ether production by proton exchange membrane was slightly higher than for the solid oxide electrolysis process. However, the proton exchange membrane operates at a lower temperature, consequently leading to less operational issues.

Keywords: thermo-economic analysis; hydrogen production; alkaline water electrolysis; proton exchange membrane; solid oxide electrolysis; methanol; dimethyl ether (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2022
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