Evaporation of Methanol Solution for a Methanol Steam Reforming System

Ngoc Van Trinh, Younghyeon Kim, Hongjip Kim and Sangseok Yu
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Ngoc Van Trinh: Graduate School, Chungnam National University, Daejeon 34134, Korea
Younghyeon Kim: Graduate School, Chungnam National University, Daejeon 34134, Korea
Hongjip Kim: Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, Korea
Sangseok Yu: Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, Korea

Energies, 2021, vol. 14, issue 16, 1-15

Abstract: In a methanol-reforming system, because the mixture of methanol and water must be evaporated before reaching the reforming reaction zone, having an appropriate evaporator design is a fundamental requirement for completing the reforming reaction. This study investigates the effect of the evaporator design for the stable reforming of methanol–water mixtures. Four types of evaporator are compared at the same heat duty of the methanol-reforming system. The four evaporators are planar heat exchangers containing a microchannel structure, cylindrical shell-and-tube evaporators, zirconia balls for internal evaporation, and combinations of cylindrical shell-tubes and zirconia balls. The results show that the evaporator configuration is critical in performing stable reform reactions, especially for the flow-field mode of the evaporator. Additionally, the combination of both internal and external evaporation methods generates the highest performance for the methanol-reforming system, with the methanol conversion reaching almost 98%.

Keywords: shell-and-tube; internal evaporation; microchannel structure; methanol-reforming reaction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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