Title:
021922 A Novel Energy-efficient Process of Converting CO2 to Dimethyl Ether with Techno-economic and Environmental Evaluation
021922 A Novel Energy-efficient Process of Converting CO2 to Dimethyl Ether with Techno-economic and Environmental Evaluation
Time:
02/19 (Sat.) 7:00 pm PST, 8:00 pm MST, 9:00 pm CST, 10:00 pm EST
02/20 (Sun.)4:00 am CET, 11:00 am Taiwan
Time zone conversion tool
02/19 (Sat.) 7:00 pm PST, 8:00 pm MST, 9:00 pm CST, 10:00 pm EST
02/20 (Sun.)4:00 am CET, 11:00 am Taiwan
Time zone conversion tool
Keywords:
chemical engineering, process systems engineering, Dimethyl Ether, CO2 Utilization, PTL, Alternative Fuel, Process Intensification
chemical engineering, process systems engineering, Dimethyl Ether, CO2 Utilization, PTL, Alternative Fuel, Process Intensification
Abstract:
This work aims at discovering the potential of CO2 reduction by implementing techniques of process intensification in the production processes of green alternative fuel, dimethyl ether (DME), from CO2 and renewable hydrogen (H2) with both one-step and two-step configurations. A novel intensified process using the two-step configuration (named as TSHI), which converts CO2 to methanol followed by the dehydration of methanol to DME, is proposed in this study. Developed based on the validated thermodynamic representation and the reaction kinetics expression, TSHI shows the greatest potential of CO2 reduction – 1.704 ton CO2 / ton DME – among the five discussed process scenarios. Though TSHI exhibits high capability of reducing CO2 amount in the atmosphere, the result of techno-economic analysis showed that there are still rooms for further improvements to produce green alternative fuel cost-effectively.
This work aims at discovering the potential of CO2 reduction by implementing techniques of process intensification in the production processes of green alternative fuel, dimethyl ether (DME), from CO2 and renewable hydrogen (H2) with both one-step and two-step configurations. A novel intensified process using the two-step configuration (named as TSHI), which converts CO2 to methanol followed by the dehydration of methanol to DME, is proposed in this study. Developed based on the validated thermodynamic representation and the reaction kinetics expression, TSHI shows the greatest potential of CO2 reduction – 1.704 ton CO2 / ton DME – among the five discussed process scenarios. Though TSHI exhibits high capability of reducing CO2 amount in the atmosphere, the result of techno-economic analysis showed that there are still rooms for further improvements to produce green alternative fuel cost-effectively.
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