Simulation and multi-objective optimization of the dimethyl carbonate production process

Ali Maleki; Fatemeh Bahadori

doi:10.1038/s41598-023-44100-y

Simulation and multi-objective optimization of the dimethyl carbonate production process

Sci Rep. 2023 Oct 6;13(1):16900. doi: 10.1038/s41598-023-44100-y.

Authors

Ali Maleki¹, Fatemeh Bahadori²

Affiliations

¹ Faculty of Chemical Engineering, Urmia University of Technology, P.O. Box 57166-17165, Urmia, Iran.
² Faculty of Chemical Engineering, Urmia University of Technology, P.O. Box 57166-17165, Urmia, Iran. F.bahadori@che.uut.ac.ir.

Abstract

Greenhouse gases such as CO₂ are considered effective materials in global warming due to their high absorptivity. So, lowering atmospheric CO₂ is one of the most practical strategies. Utilizing carbon dioxide in chemical processes is an applicable method. In this study, Aspen HYSYS 10 was used to investigate how carbon dioxide can be added to the process of dimethyl carbonate production, and the affective parameters of the process, including temperature, residence time, feed ratio, and recycle ratio, were evaluated. It was observed that the production of DMC grew as temperature rose. The simulation results also revealed that a maximum conversion of roughly 8% was attained in the MeOH/EC. Additionally, boosting the recycle ratio is detrimental, and the impact of temperature and MeOH/EC has been enhanced by increasing the residence time. The interactions of the above parameters have been studied by Design Expert 12. The optimum value of effective parameters for the production of dimethyl carbonate has been obtained as follows: temperature of 164.7° C, recycle ratio of 0.2, residence time of 139.45 min, and feed ratio of 5.9%, leading to the conversion of 70%.