Enhanced hydrogen production from methanol by liquid-phase array electrode plasma discharge

Junjie Zhang; Wei Zhang; Junfeng Wang; Tianyi Wu; Jiale Wang; Shuyan Shuang; Yadong Zhang; Mingdong Dong

doi:10.1016/j.enconman.2024.118544

Enhanced hydrogen production from methanol by liquid-phase array electrode plasma discharge

Junjie Zhang, Wei Zhang, Junfeng Wang^*, Tianyi Wu, Jiale Wang, Shuyan Shuang, Yadong Zhang, Mingdong Dong

^*Corresponding author af dette arbejde

Interdisciplinary Nanoscience Center

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

Abstract

Methanol emerges as a promising candidate for on-board hydrogen production, owing to its sustainability and safety attributes. This study focuses on optimizing hydrogen production from methanol decomposition utilizing a liquid-phase array electrode plasma discharge reactor featuring gliding arc discharge. Various factors affecting hydrogen production, such as discharge parameters, electrode structure, and the conductivity of methanol–water solutions, are systematically examined. Comparative analysis revealed that, under identical discharge power, the array high-voltage electrode outperforms a single electrode in terms of hydrogen yield, with the maximum hydrogen flow rate significantly increased by 118.3 % to 1188.54 mL/min. Furthermore, the array-needle ring electrode configuration is proven to be more favorable for liquid-phase gliding arc discharge, demonstrating superior hydrogen production and energy efficiency compared to the array-needle hole-plate configuration, with a best H₂ selectivity of 65 % and a prime energy conversion efficiency of 71.12 %. Additionally, a higher conductivity of methanol–water solution leads to a lower hydrogen flow rate, failing to trigger reforming reactions to enhance hydrogen concentration in the syngas. Generally, optimization efforts result in an impressive 33.8 % reduction in energy consumption for hydrogen production, achieving an optimal energy consumption of 1.28 kWh/Nm³H₂ in the array electrode setup. This study provides valuable insights into the intricacies of liquid-phase gliding arc discharge for methanol-based hydrogen production, offering a foundation for optimizing reactor configurations and operational parameters to maximize efficiency and minimize energy consumption.

Originalsprog	Engelsk
Artikelnummer	118544
Tidsskrift	Energy Conversion and Management
Vol/bind	312
ISSN	0196-8904
DOI	https://doi.org/10.1016/j.enconman.2024.118544
Status	Udgivet - jul. 2024

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10.1016/j.enconman.2024.118544

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title = "Enhanced hydrogen production from methanol by liquid-phase array electrode plasma discharge",

abstract = "Methanol emerges as a promising candidate for on-board hydrogen production, owing to its sustainability and safety attributes. This study focuses on optimizing hydrogen production from methanol decomposition utilizing a liquid-phase array electrode plasma discharge reactor featuring gliding arc discharge. Various factors affecting hydrogen production, such as discharge parameters, electrode structure, and the conductivity of methanol–water solutions, are systematically examined. Comparative analysis revealed that, under identical discharge power, the array high-voltage electrode outperforms a single electrode in terms of hydrogen yield, with the maximum hydrogen flow rate significantly increased by 118.3 % to 1188.54 mL/min. Furthermore, the array-needle ring electrode configuration is proven to be more favorable for liquid-phase gliding arc discharge, demonstrating superior hydrogen production and energy efficiency compared to the array-needle hole-plate configuration, with a best H2 selectivity of 65 % and a prime energy conversion efficiency of 71.12 %. Additionally, a higher conductivity of methanol–water solution leads to a lower hydrogen flow rate, failing to trigger reforming reactions to enhance hydrogen concentration in the syngas. Generally, optimization efforts result in an impressive 33.8 % reduction in energy consumption for hydrogen production, achieving an optimal energy consumption of 1.28 kWh/Nm3H2 in the array electrode setup. This study provides valuable insights into the intricacies of liquid-phase gliding arc discharge for methanol-based hydrogen production, offering a foundation for optimizing reactor configurations and operational parameters to maximize efficiency and minimize energy consumption.",

keywords = "Array electrode, Hydrogen production, Liquid-phase plasma discharge, Methanol",

author = "Junjie Zhang and Wei Zhang and Junfeng Wang and Tianyi Wu and Jiale Wang and Shuyan Shuang and Yadong Zhang and Mingdong Dong",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = jul,

doi = "10.1016/j.enconman.2024.118544",

language = "English",

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journal = "Energy Conversion and Management",

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TY - JOUR

T1 - Enhanced hydrogen production from methanol by liquid-phase array electrode plasma discharge

AU - Zhang, Junjie

AU - Zhang, Wei

AU - Wang, Junfeng

AU - Wu, Tianyi

AU - Wang, Jiale

AU - Shuang, Shuyan

AU - Zhang, Yadong

AU - Dong, Mingdong

PY - 2024/7

Y1 - 2024/7

N2 - Methanol emerges as a promising candidate for on-board hydrogen production, owing to its sustainability and safety attributes. This study focuses on optimizing hydrogen production from methanol decomposition utilizing a liquid-phase array electrode plasma discharge reactor featuring gliding arc discharge. Various factors affecting hydrogen production, such as discharge parameters, electrode structure, and the conductivity of methanol–water solutions, are systematically examined. Comparative analysis revealed that, under identical discharge power, the array high-voltage electrode outperforms a single electrode in terms of hydrogen yield, with the maximum hydrogen flow rate significantly increased by 118.3 % to 1188.54 mL/min. Furthermore, the array-needle ring electrode configuration is proven to be more favorable for liquid-phase gliding arc discharge, demonstrating superior hydrogen production and energy efficiency compared to the array-needle hole-plate configuration, with a best H2 selectivity of 65 % and a prime energy conversion efficiency of 71.12 %. Additionally, a higher conductivity of methanol–water solution leads to a lower hydrogen flow rate, failing to trigger reforming reactions to enhance hydrogen concentration in the syngas. Generally, optimization efforts result in an impressive 33.8 % reduction in energy consumption for hydrogen production, achieving an optimal energy consumption of 1.28 kWh/Nm3H2 in the array electrode setup. This study provides valuable insights into the intricacies of liquid-phase gliding arc discharge for methanol-based hydrogen production, offering a foundation for optimizing reactor configurations and operational parameters to maximize efficiency and minimize energy consumption.

AB - Methanol emerges as a promising candidate for on-board hydrogen production, owing to its sustainability and safety attributes. This study focuses on optimizing hydrogen production from methanol decomposition utilizing a liquid-phase array electrode plasma discharge reactor featuring gliding arc discharge. Various factors affecting hydrogen production, such as discharge parameters, electrode structure, and the conductivity of methanol–water solutions, are systematically examined. Comparative analysis revealed that, under identical discharge power, the array high-voltage electrode outperforms a single electrode in terms of hydrogen yield, with the maximum hydrogen flow rate significantly increased by 118.3 % to 1188.54 mL/min. Furthermore, the array-needle ring electrode configuration is proven to be more favorable for liquid-phase gliding arc discharge, demonstrating superior hydrogen production and energy efficiency compared to the array-needle hole-plate configuration, with a best H2 selectivity of 65 % and a prime energy conversion efficiency of 71.12 %. Additionally, a higher conductivity of methanol–water solution leads to a lower hydrogen flow rate, failing to trigger reforming reactions to enhance hydrogen concentration in the syngas. Generally, optimization efforts result in an impressive 33.8 % reduction in energy consumption for hydrogen production, achieving an optimal energy consumption of 1.28 kWh/Nm3H2 in the array electrode setup. This study provides valuable insights into the intricacies of liquid-phase gliding arc discharge for methanol-based hydrogen production, offering a foundation for optimizing reactor configurations and operational parameters to maximize efficiency and minimize energy consumption.

KW - Array electrode

KW - Hydrogen production

KW - Liquid-phase plasma discharge

KW - Methanol

U2 - 10.1016/j.enconman.2024.118544

DO - 10.1016/j.enconman.2024.118544

M3 - Journal article

AN - SCOPUS:85193725299

SN - 0196-8904

VL - 312

JO - Energy Conversion and Management

JF - Energy Conversion and Management

M1 - 118544

ER -

Enhanced hydrogen production from methanol by liquid-phase array electrode plasma discharge

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