Ni基催化剂上CO甲烷化反应性能研究  

Study on methanation of carbon monoxide over nickel-based catalysts

作　　者：朱秋军[1] 王海洋[1] 李振花[1] 

机构地区：[1]天津大学化工学院绿色合成与转化教育部重点实验室,天津300072

出　　处：《天然气化工—C1化学与化工》2012年第2期17-20,共4页Natural Gas Chemical Industry

摘　　要：采用等体积浸渍法制备了不同担载量的镍基催化剂,考察了催化剂Ni担载量、反应温度和空速对低H2/CO比下的CO甲烷化性能的影响。结果表明,Ni的最佳担载量质量分数为11%,最佳反应温度为550℃。在空速7500h-1～30000h-1范围内,催化剂活性随空速的增大先增大后减小,在15000h-1时达到最佳。Ni/Al2O3 catalysts with varied Ni contents from 8% to 18% by mass were prepared by incipient wet impregnation method and effects of Ni content,temperature and GHSV on the activity of the catalysts in methanation reaction of the syngas with low H2/CO ratio were investigated.The results showed that the optimum Ni loading was of 11% by mass,the optimum reaction temperature was of 550℃.The activity of the catalyst increased firstly and then decreased with the GHSV increasing from 7500h-1 to 30000h-1,and was the highest at 15000h-1.

关 键 词：一氧化碳 甲烷化 镍基催化剂 

分 类 号：O643[理学—物理化学]