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脈沖電暈放電-催化轉(zhuǎn)化CO2為CO
摘要: 在常溫、常壓下,較系統(tǒng)地研究了CO2在脈沖電暈等離子體條件下的活化與轉(zhuǎn)化,考察了反應(yīng)器參數(shù)、脈沖成形電容、應(yīng)用電壓、氣體流量、電暈極性對二氧化碳轉(zhuǎn)化的影響.在本實(shí)驗(yàn)條件下,最佳反應(yīng)器的有效長度為125*#mm,內(nèi)徑為22*#mm.二氧化碳轉(zhuǎn)化率和一氧化碳產(chǎn)率隨應(yīng)用電壓的增加而增加.另外,隨著應(yīng)用電壓的增加,脈沖反應(yīng)器的能量利用效率反而降低.隨著氣體流量的增大,二氧化碳的轉(zhuǎn)化率及一氧化碳的產(chǎn)率下降.γ-Al2O3的存在大大促進(jìn)了二氧化碳的轉(zhuǎn)化, CO2的最高轉(zhuǎn)化率達(dá)23%.由于γ-Al2O3在物化性質(zhì)方面的特性,γ-Al2O3的存在對二氧化碳的轉(zhuǎn)化有重要的作用.研究表明:脈沖電暈放電-催化轉(zhuǎn)化CO2為CO是可行的. Abstract: The combination of pulsed corona discharges and catalyst was examined for conversion of pure carbon dioxide in a corona reactor packed with porous γ-Al2O3 pellets. The conversion of CO2 was enhanced by addition of γ-Al2O3. In the presence of γ-Al2O3, the conversion of CO2, yield of CO and selectivity of CO reach 23%, 15% and 70.8%. Corresponding conversion in the absence of γ-Al2O3, 3% for CO2 conversion, 2.4% for yield of CO and 66 % for selectivity of CO. The CO2 conversion increases with increasing applied voltage and decreasing gas flow rate. The optimum reactor length and diameter based on the maximum conversion of CO2 and yield of CO exist at L=125mm and 2R=26mm in the present range of experiment. The maximum energy efficiency of CO2 reaches 318.7g/kWh. 作 者: 文岳中 姜玄珍 劉維屏 作者單位: 文岳中,劉維屏(浙江大學(xué),環(huán)境科學(xué)研究所,浙江,杭州,310027)姜玄珍(浙江大學(xué),化學(xué)系,浙江,杭州,310027)
期 刊: 燃料化學(xué)學(xué)報(bào) ISTICEIPKU Journal: JOURNAL OF FUEL CHEMISTRY AND TECHNOLOGY 年,卷(期): 2002, 30(3) 分類號(hào): X701 關(guān)鍵詞: 脈沖電暈放電 非平衡等離子 催化 轉(zhuǎn)化 二氧化碳,一氧化碳 Keywords: carbon dioxide carbon monoxide conversion corona discharges non-thermal plasma catalyst【脈沖電暈放電-催化轉(zhuǎn)化CO2為CO】相關(guān)文章:
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