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Microwave plasma torches used for hydrogen production
A microwave plasma torch operating at 2.45 GHz and atmospheric pressure has been used as a medium and a tool for decomposition of alcohol in order to produce molecular hydrogen. Plasma in a gas mixture of argon and ethanol/methanol, with or without water, has been created using a waveguide surfatron...
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Published in: | Journal of physics. Conference series 2014-01, Vol.516 (1), p.12002-10 |
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creator | Dias, F M Bundaleska, N Henriques, J Tatarova, E Ferreira, C M |
description | A microwave plasma torch operating at 2.45 GHz and atmospheric pressure has been used as a medium and a tool for decomposition of alcohol in order to produce molecular hydrogen. Plasma in a gas mixture of argon and ethanol/methanol, with or without water, has been created using a waveguide surfatron launcher and a microwave generator delivering a power in the range 0.2-2.0 kW. Mass, Fourier Transform Infrared, and optical emission spectrometry have been applied as diagnostic tools. The decomposition yield of methanol was nearly 100 % with H2, CO, CO2, H2O, and solid carbon as the main reaction products. The influence of the fraction of Ar flow through the liquid ethanol/methanol on H2, CO, and CO2 partial pressures has been investigated, as well as the dependence of the produced H2 flow on the total flow and power. The optical emission spectrum in the range 250–700 nm has also been detected. There is a decrease of the OH(A-X) band intensity with the increase of methanol in the mixture. The emission of carbon atoms in the near UV range (240–300 nm) exhibits a significant increase as the amount of alcohol in the mixture grows. The obtained results clearly show that this microwave plasma torch at atmospheric pressure provides an efficient plasma environment for hydrogen production. |
doi_str_mv | 10.1088/1742-6596/516/1/012002 |
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Plasma in a gas mixture of argon and ethanol/methanol, with or without water, has been created using a waveguide surfatron launcher and a microwave generator delivering a power in the range 0.2-2.0 kW. Mass, Fourier Transform Infrared, and optical emission spectrometry have been applied as diagnostic tools. The decomposition yield of methanol was nearly 100 % with H2, CO, CO2, H2O, and solid carbon as the main reaction products. The influence of the fraction of Ar flow through the liquid ethanol/methanol on H2, CO, and CO2 partial pressures has been investigated, as well as the dependence of the produced H2 flow on the total flow and power. The optical emission spectrum in the range 250–700 nm has also been detected. There is a decrease of the OH(A-X) band intensity with the increase of methanol in the mixture. The emission of carbon atoms in the near UV range (240–300 nm) exhibits a significant increase as the amount of alcohol in the mixture grows. 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Conference series</title><description>A microwave plasma torch operating at 2.45 GHz and atmospheric pressure has been used as a medium and a tool for decomposition of alcohol in order to produce molecular hydrogen. Plasma in a gas mixture of argon and ethanol/methanol, with or without water, has been created using a waveguide surfatron launcher and a microwave generator delivering a power in the range 0.2-2.0 kW. Mass, Fourier Transform Infrared, and optical emission spectrometry have been applied as diagnostic tools. The decomposition yield of methanol was nearly 100 % with H2, CO, CO2, H2O, and solid carbon as the main reaction products. The influence of the fraction of Ar flow through the liquid ethanol/methanol on H2, CO, and CO2 partial pressures has been investigated, as well as the dependence of the produced H2 flow on the total flow and power. The optical emission spectrum in the range 250–700 nm has also been detected. There is a decrease of the OH(A-X) band intensity with the increase of methanol in the mixture. The emission of carbon atoms in the near UV range (240–300 nm) exhibits a significant increase as the amount of alcohol in the mixture grows. The obtained results clearly show that this microwave plasma torch at atmospheric pressure provides an efficient plasma environment for hydrogen production.</description><subject>Argon</subject><subject>Atmospheric pressure</subject><subject>Carbon</subject><subject>Carbon dioxide</subject><subject>Decomposition</subject><subject>Emission</subject><subject>Ethanol</subject><subject>Ethyl alcohol</subject><subject>Fourier transforms</subject><subject>Gas mixtures</subject><subject>Hydrogen production</subject><subject>Methanol</subject><subject>Methyl alcohol</subject><subject>Microwave plasmas</subject><subject>Optical emission spectroscopy</subject><subject>Physics</subject><subject>Plasma</subject><subject>Plasma torches</subject><subject>Reaction products</subject><subject>Waveguides</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNpdkEtLxDAQgIMouK7-BSl48VKbSdJkepTFF6x40XPIpqnbpW3WpFX235tlZQ_OZQbmYx4fIddA74AiFqAEy2VZyaIEWUBBgVHKTsjs2Dg91ojn5CLGDaU8hZqR8rW1wf-Yb5dtOxN7k40-2LWL2RRdnTU-ZOtdHfynG7Jt8PVkx9YPl-SsMV10V395Tj4eH94Xz_ny7ellcb_MraAw5txIaSyouhG1bRwqRGEQGsMrKgFYVRsjmV2JFUpnJRcWgYsKOVJGS0X5nNwe5qbVX5OLo-7baF3XmcH5KWpQgBUTrIKE3vxDN34KQ7pOs1JJKZEqnih5oNLTMQbX6G1oexN2Gqje29R7UXovTSebGvTBJv8FEyZmFw</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Dias, F M</creator><creator>Bundaleska, N</creator><creator>Henriques, J</creator><creator>Tatarova, E</creator><creator>Ferreira, C M</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7U5</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20140101</creationdate><title>Microwave plasma torches used for hydrogen production</title><author>Dias, F M ; Bundaleska, N ; Henriques, J ; Tatarova, E ; Ferreira, C M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c401t-3a66ac17df4dcfe87884a81fa39061129daa62cb4b86ec634c813498380205703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Argon</topic><topic>Atmospheric pressure</topic><topic>Carbon</topic><topic>Carbon dioxide</topic><topic>Decomposition</topic><topic>Emission</topic><topic>Ethanol</topic><topic>Ethyl alcohol</topic><topic>Fourier transforms</topic><topic>Gas mixtures</topic><topic>Hydrogen production</topic><topic>Methanol</topic><topic>Methyl alcohol</topic><topic>Microwave plasmas</topic><topic>Optical emission spectroscopy</topic><topic>Physics</topic><topic>Plasma</topic><topic>Plasma torches</topic><topic>Reaction products</topic><topic>Waveguides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dias, F M</creatorcontrib><creatorcontrib>Bundaleska, N</creatorcontrib><creatorcontrib>Henriques, J</creatorcontrib><creatorcontrib>Tatarova, E</creatorcontrib><creatorcontrib>Ferreira, C M</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies & Aerospace Database (1962 - current)</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ProQuest advanced technologies & aerospace journals</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dias, F M</au><au>Bundaleska, N</au><au>Henriques, J</au><au>Tatarova, E</au><au>Ferreira, C M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microwave plasma torches used for hydrogen production</atitle><jtitle>Journal of physics. Conference series</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>516</volume><issue>1</issue><spage>12002</spage><epage>10</epage><pages>12002-10</pages><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>A microwave plasma torch operating at 2.45 GHz and atmospheric pressure has been used as a medium and a tool for decomposition of alcohol in order to produce molecular hydrogen. Plasma in a gas mixture of argon and ethanol/methanol, with or without water, has been created using a waveguide surfatron launcher and a microwave generator delivering a power in the range 0.2-2.0 kW. Mass, Fourier Transform Infrared, and optical emission spectrometry have been applied as diagnostic tools. The decomposition yield of methanol was nearly 100 % with H2, CO, CO2, H2O, and solid carbon as the main reaction products. The influence of the fraction of Ar flow through the liquid ethanol/methanol on H2, CO, and CO2 partial pressures has been investigated, as well as the dependence of the produced H2 flow on the total flow and power. The optical emission spectrum in the range 250–700 nm has also been detected. There is a decrease of the OH(A-X) band intensity with the increase of methanol in the mixture. The emission of carbon atoms in the near UV range (240–300 nm) exhibits a significant increase as the amount of alcohol in the mixture grows. The obtained results clearly show that this microwave plasma torch at atmospheric pressure provides an efficient plasma environment for hydrogen production.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/516/1/012002</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Argon Atmospheric pressure Carbon Carbon dioxide Decomposition Emission Ethanol Ethyl alcohol Fourier transforms Gas mixtures Hydrogen production Methanol Methyl alcohol Microwave plasmas Optical emission spectroscopy Physics Plasma Plasma torches Reaction products Waveguides |
title | Microwave plasma torches used for hydrogen production |
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