Methanol conversion from methane and water vapor by electric discharge (Effect of electric discharge process on methane conversion)

Kunio Hijikata, Kuniyasu Ogawa, Norimoto Miyakawa

Research output: Contribution to journalArticle

Abstract

The possibility of methanol conversion from a methane and water-vapor gas mixture was investigated for a new and highly efficient energy conversion system. Reforming process of methanol to hydrogen can be used for a low-temperature thermal energy utilization. Direct methanol production from methane and water-vapor mixture by spark or glowlike discharges has been achieved experimentally. High methanol production rate of 0.5% has been obtained by both discharges. The effects of reaction time, total pressure and ratio of gas mixture on the conversion efficiency have been clarified experimentally. The electric energy consumption for the methanol production by the spark discharge is 0.01 times smaller than that by the glow discharge. The methanol conversion process has also been analyzed theoretically by considering 104 elementary reactions. The result suggests that a very short period energy input such as a spark discharge can effectively produce methanol.

Original languageEnglish
Pages (from-to)3055-3062
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume63
Issue number613
Publication statusPublished - 1997 Sep
Externally publishedYes

Fingerprint

Electric discharges
electric discharges
Water vapor
water vapor
Methane
Methanol
methane
methyl alcohol
vapors
electric sparks
Electric sparks
Gas mixtures
gas mixtures
Energy utilization
energy conversion
Glow discharges
energy consumption
Reforming reactions
Thermal energy
Energy conversion

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "The possibility of methanol conversion from a methane and water-vapor gas mixture was investigated for a new and highly efficient energy conversion system. Reforming process of methanol to hydrogen can be used for a low-temperature thermal energy utilization. Direct methanol production from methane and water-vapor mixture by spark or glowlike discharges has been achieved experimentally. High methanol production rate of 0.5{\%} has been obtained by both discharges. The effects of reaction time, total pressure and ratio of gas mixture on the conversion efficiency have been clarified experimentally. The electric energy consumption for the methanol production by the spark discharge is 0.01 times smaller than that by the glow discharge. The methanol conversion process has also been analyzed theoretically by considering 104 elementary reactions. The result suggests that a very short period energy input such as a spark discharge can effectively produce methanol.",
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AU - Hijikata, Kunio

AU - Ogawa, Kuniyasu

AU - Miyakawa, Norimoto

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AB - The possibility of methanol conversion from a methane and water-vapor gas mixture was investigated for a new and highly efficient energy conversion system. Reforming process of methanol to hydrogen can be used for a low-temperature thermal energy utilization. Direct methanol production from methane and water-vapor mixture by spark or glowlike discharges has been achieved experimentally. High methanol production rate of 0.5% has been obtained by both discharges. The effects of reaction time, total pressure and ratio of gas mixture on the conversion efficiency have been clarified experimentally. The electric energy consumption for the methanol production by the spark discharge is 0.01 times smaller than that by the glow discharge. The methanol conversion process has also been analyzed theoretically by considering 104 elementary reactions. The result suggests that a very short period energy input such as a spark discharge can effectively produce methanol.

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