反常辉光放电下CH_4-CO_2转化制合成气  

CO_2 REFORMING OF CH_4 TO SYNTHESIS GAS BY ABNORMAL GLOW PLASMA

作　　者：龙华丽[1] 余徽[1] 陈琦[1] 印永祥[1] 戴晓雁[1] 

机构地区：[1]四川大学化工学院

出　　处：《天然气工业》2006年第7期123-126,共4页Natural Gas Industry

基　　金：国家自然科学基金(编号:10475060)资助。

摘　　要：在常压下,利用一种新型的反常辉光放电反应器,使CO2重整CH4制取合成气。实验表明,反应体系输入功率、原料气配比和流量等对反应结果有着较大影响。在常压下,当输入功率为437W、n(CH4)∶n(CO2)=4∶6及流量为140mL/min时,CH4和CO2的转化率分别高达91.9%和83.2%,并且CO和H2的选择性分别为82.4%和62.1%。通过调配原料的配比,可以得到不同n(H2)∶n(CO)比值的合成气。A new type of plasma, abnormal glow discharge, was used to investigate synthesis gas production from reforming methane and carbon dioxide. It is shown through the lab test that CH_4, CO_2 conversion, H_2, CO selectivity, and ratio of H_2/CO varied with changing of discharging power, total flux, and the ratio of CH_4/CO_2. Under the constant pressure, when input power was 500 W,total flux of feeding gases was 140 mL/min and the ratio of nCH_4/nCO_2 was 4:6, the conversion of CH_4 and CO_2 was as high as 91.9% and 83.2% respectively, the selectivity of CO and H_2 were 82.4% and 62.1%. Through blending the feeding gases in different ratio, different values of synthesis gas (nH_2/nCO_2) can be obtained.

关 键 词：反常辉光放电 甲烷 二氧化碳 转化 制备 合成气 转化率 

分 类 号：TE665.3[石油与天然气工程—油气加工工程]