文章基本信息

标题：Carbon Dioxide Conversion to Synthesis Gas when Combined with Methane using a New Designed of Non-thermal Plasma Reactor
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作者：Widiatmini Sih Winanti ; Setijo Bismo ; Widodo Wahyu Purwanto 等
期刊名称：Journal of Environmental Science and Technology
印刷版ISSN：1994-7887
电子版ISSN：2077-2181
出版年度：2014
卷号：7
期号：4
页码：226-235
DOI：10.3923/jest.2014.226.235
出版社：Asian Network for Scientific Information
摘要：The aim of this study in to investigate the performance of a three-pass flow configuration of a dielectric barrier discharge non-thermal plasma, as a new designed of non-thermal plasma reactor, to convert greenhouse gas emission, CO₂ and combined with CH₄ to produce synthesis gas, CO and H₂ in a CO₂ reforming process. This new designed reactor has a special configuration of its reactant gas flow that can provide several advantages, namely simultaneously cools the High Voltage Electrode (HVE) during the reaction process, extends the gas feed residence time and preheat the gas feed flow before entering the plasma zone, where the plasma reaction actually happens. The cooling process inside the reactor makes this reactor does not require a separate cooling device for its operation and the longer of residence time that can improve the feed gas conversion. Furthermore, the preheating of gas feed flow can improve the efficient use of energy for the process. Gases were converted in a 180 mA of 12.27 kV. The feed flow rates applied were 9.19, 19.45 and 85.43 cm³ min^-1 and the reaction was carried out for a time on stream of 140 min. Results showed that the highest CO₂ and CH₄ conversions were 36.73 and 35.52%, respectively, obtained at a feed flow rate of 9.19 cm³ min^-1. The reaction produced not only synthesis gas but also C₂H₆ and C₃ gas component with a proportions in terms of the molar flow rate were 28-53 and 0-26%, respectively. These gasses form were increased with an increasing feed flow rate. The most efficient Specific Energy (SE) was obtained at 2,333.5 kJ mole^-1 which was reached at a feed flow rate of 85.45 cm³ min^-1. This value was lower and more efficient than previous experiments by Wang (7,289 kJ mol^-1) but still higher comparing with the standard enthalpy needed for CO₂ reforming 61.75 kJ mol^-1.