CAJ | 학술논문

在常温、常压下,较系统地研究了CO2在脉冲电晕等离子体条件下的活化与转化,考察了反应器参数、脉冲成形电容、应用电压、气体流量、电晕极性对二氧化碳转化的影响.在本实验条件下,最佳反应器的有效长度为125*#mm,内径为22*#mm.二氧化碳转化率和一氧化碳产率随应用电压的增加而增加.另外,随着应用电压的增加,脉冲反应器的能量利用效率反而降低.随着气体流量的增大,二氧化碳的转化率及一氧化碳的产率下降.γ-Al2O3的存在大大促进了二氧化碳的转化, CO2的最高转化率达23%.由于γ-Al2O3在物化性质方面的特性,γ-Al2O3的存在对二氧化碳的转化有重要的作用.研究表明:脉冲电晕放电-催化转化CO2为CO是可行的.
재상온、상압하,교계통지연구료CO2재맥충전훈등리자체조건하적활화여전화,고찰료반응기삼수、맥충성형전용、응용전압、기체류량、전훈겁성대이양화탄전화적영향.재본실험조건하,최가반응기적유효장도위125*#mm,내경위22*#mm.이양화탄전화솔화일양화탄산솔수응용전압적증가이증가.령외,수착응용전압적증가,맥충반응기적능량이용효솔반이강저.수착기체류량적증대,이양화탄적전화솔급일양화탄적산솔하강.γ-Al2O3적존재대대촉진료이양화탄적전화, CO2적최고전화솔체23%.유우γ-Al2O3재물화성질방면적특성,γ-Al2O3적존재대이양화탄적전화유중요적작용.연구표명:맥충전훈방전-최화전화CO2위CO시가행적.
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.