期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 49, 页码 25284-25293出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.05.032
关键词
Methanol steam reformer; Hydrogen; Thermal efficiency; Evaporator; Heat recovery unit
资金
- National Research Foundation of Korea (NRF) - Korea government [NRF-2019R1A2C1087784, NRF-2020M1A2A2080860]
Three different system configurations of methanol steam reforming systems were compared in this study, and it was found that the internally evaporated methanol steam reformer efficiently converts methanol into a hydrogen-rich mixture.
The thermal energy of a methanol steam reforming system is balanced with heat-up by a methanol burner, heat absorption by an evaporator, and an endothermic reforming reactor. As the thermal energy of a methanol steam reformer is delicately controlled, its thermal efficiency is significantly improved. In this study, three different system configurations are compared, namely, (1) a reference methanol steam reformer with an external evaporator, (2) a methanol steam reformer with an internal evaporator and type-1 auxiliary heat recovery unit (AHRU) with a heat source gas, and (3) a methanol steam reformer with an internal evaporator and type-2 AHRU with a heat source gas and reformed gas. These three configurations are analyzed, and the two heat recovery units are investigated. Results show that the internally evaporated methanol steam reformer efficiently converts the methanol to a hydrogen-rich mixture as exit gases are utilized to heat up the inlet methanol/water mixture. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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