| With the lessening of oil and strict environmental protection, the exploitation and using of natural gas are becoming more and more important in the world, because natural gas is the quality, effective, clean chemical material. At present, there are a lot of researches about methane converse to oxy-hydrocarbon. CH4 is a major constituent of natural gas, O2 and H2O are the abundant and cheap natural resource. Study on the synthesis of CH4, O2 and H2O have application value.This paper studies on the conversion of methane by the strong ionized discharge at atmospheric condition without catalyst. An electric field is formed by strong ionized discharge in the plasma reactor with reduced electric field intensity exceeding 400Td, average electron energy higher than 12eV and electron density more than 1015/cm3. Methane, oxygen and H2O molecules are activated, ionized and dissociated into active particles such as CH3+, O-, H2O+, CH3, CH2, CH, H,OH and O, by nonelastic collision with high energy electrons. The particles react with each other in the reactor to synthesize chemically products including gaseous oxy-hydrocarbons.We study the rule of reaction by changing electrical parameter, gas flow etc. Study the conversion of methane, selectivity of gaseous hydrocarbons and yield of methanol under different reaction condition. The methane conversion attains 72.3 percent. The methanol yield attains 5.78 percent. The conversion of methane is higher under synthesis of CH4, O2 and H2O than other condition. The same to the methanol yield. Gas chromatograph is used to detect the productions in the experiments.The experiments use CH4, O2 and H2O as stuff, which is abundant in nature, realize plasma synthesis at atmospheric condition without catalyst. Synthesize the high value chemical material and the clean substitute energy. Create a new technology for the development of methane chemical industry and new energy. It has very important science research and economy meaning. |
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