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Study on Carbon Dioxide Reforming of Methane to Syngas via Non-equilibrium Plasma

Author: ZhuWeiNa
Tutor: LiZhenHua
School: Tianjin University
Course: Chemical processes
Keywords: Non-equilibrium plasmas Methane Carbon dioxide Syngas
CLC: TE665.3
Type: Master's thesis
Year: 2008
Downloads: 174
Quote: 1
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Abstract


In recent years, the issue of global warming has become more and more serious, the most important greenhouse gas carbon dioxide as transformed the use of the method has been more and more attention, at the same time, with the shortage of petroleum resources increasingly, natural gas The development and utilization of more and more attention has been paid. The conventional method of carbon dioxide reforming of methane exist high activation temperature, catalyst inactivation, cold plasma due to its unbalanced widely used in the process of carbon dioxide reforming of methane, and gradually become a hot research. In this paper, two types of non-equilibrium plasma reforming reaction of methane, carbon dioxide, the rotation of the blade-like electrode reactor and tubular quartz dielectric barrier discharge study the impact of different parameters on the reactor reforming reaction of methane, carbon dioxide, and both simple contrast. Rotation in the blade-shaped electrode reactor, the effects of different ratio of the feed gas, the feed gas flow, power parameters, the parameters of the reactor and add gas reactions studied. The study showed that: with increasing raw material of methane and carbon dioxide in the molar ratio of the methane conversion rate and the carbon monoxide selectivity reduces the CO2 conversion rate and the increase in hydrogen selectivity; reaction conversion rate with the reaction to the raw material gas flow rate increases; power parameters on Reaction eventually can be attributed to the current effect on the reaction; reactor electrode discharge gap have a greater impact on reaction conversion rate and selectivity; different additive gas only has a great influence on the selectivity of the product. Investigated within the electrode material in the dielectric barrier discharge reactor discharge spacing, medium thickness and add gas reaction. The results show, add gas and discharge spacing greater influence on the reaction within the electrode material has little effect, the thickness of the media reaction conversion can be reflected only in high traffic. Dielectric barrier discharge methane plasma conditions the reaction of carbon dioxide with glow discharge compared low conversion rate of the former than the latter product and product complex, the selectivity of the target product syngas is much lower than that of the latter, while the latter product the synthesis gas H 2 / CO molar ratio closer to 1, in addition to using the dielectric barrier discharge reactor generating unit mole synthesis gas the energy required to be much greater than the blade-shaped rotating electrode reactor.

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CLC: > Industrial Technology > Oil and gas industry > Oil, natural gas processing industry > Synthetic oil > Synthetic oil > Preparation and purification of synthesis gas
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