Modeling of a Reaction-Distillation-Recycle System to Produce Dimethyl Ether through Methanol Dehydration

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Muharam, Y.^1 ; Zulkarnain, L.M.^1 ; Wirya, A.S.^1

Department of Chemical Engineering, University of Indonesia, Depok

16424, Indonesia^1

关键词: Dimethyl ethers;    Distillation systems;    Inlet pressures;    Inlet temperature;    Methanol conversion;    Methanol dehydration;    Phenomenological modeling;    Recycle systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012027/pdf
DOI  :  10.1088/1757-899X/316/1/012027

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The increase in the dimethyl ether yield through methanol dehydration due to a recycle integration to a reaction-distillation system was studied in this research. A one-dimensional phenomenological model of a methanol dehydration reactor and a shortcut model of distillation columns were used to achieve the aim. Simulation results show that 10.7 moles/s of dimethyl ether is produced in a reaction-distillation system with the reactor length being 4 m, the reactor inlet pressure being 18 atm, the reactor inlet temperature being 533 K, the reactor inlet velocity being 0.408 m/s, and the distillation pressure being 8 atm. The methanol conversion is 90% and the dimethyl ether yield is 48%. The integration of the recycle stream to the system increases the dimethyl ether yield by 8%.