摘要
用沉淀法制备了涂覆在微通道内壁面的Ni/Al2O3催化剂,在自行搭建的实验系统上进行了微通道内甲烷/湿空气催化重整的实验研究,考察了催化壁面温度、空碳比及甲烷体积流量对甲烷/湿空气重整转化效率的影响,并与数值计算结果进行对比.结果表明,随着催化温度的升高,甲烷转化率不断升高;相同水碳比下,甲烷的催化转化率随着空碳比的增大而增大;随着甲烷体积流量的增大,甲烷转化效率呈现先增大后减小的变化规律.反应温度为1 023K,甲烷体积流量为20mL/min时,实验所得甲烷转化率达到最大值,为61.3%.
The Ni/Al2O3 catalyst coated in the inner wall of micro-channel prepared by precipitation method was employed to conduct experiments of methane-wet air catalytic reforming. The influence of catalytic temperature, air/CH4 mole rate of the raw gases and the CH4 volume flow rate on CH4 conversion were investigated and compared by the simulation results. The ex- periment results show that CH4 conversion was increasing by the catalytic temperature increased, and also increased by increasing the air/CH4 mole rate; but with the increase of CH4 volume flow rate of the reaction gases, CH4 conversion increased first and then decreased. When the temperature was 1023 K, CH4 volume flow rate was 20 mL/min, CH4 conversion got a maximum value 61.3Z.
出处
《煤炭转化》
CAS
CSCD
北大核心
2012年第1期82-85,共4页
Coal Conversion
基金
国家自然科学基金资助项目(50906103)
