【摘要】 通过变化浸渍液的ｐＨ 值、焙烧温度及还原温度制备了几种Ｍｏ－Ｎｉ／γ－Ａｌ２Ｏ３ 甲烷化催化剂，用Ｘ 射线粉末衍射（ＸＲＤ）、透射电子显微镜（ＴＥＭ）法对催化剂的结构和性能进行了考察，用脉冲气相色谱法测定了催化剂的ＣＯ 甲烷化活性及抗硫性．结果表明，Ｍｏ－Ｎｉ催化剂经还原处理后有ＭｏＮｉ４ 合金生成，ＭｏＮｉ４ 合金是主要的抗硫活性相，提高了甲烷化反应的抗硫性更多还原

【Abstract】 Several Mo Ni/γ Al 2O 3 methanation catalysts were prepared by changing the pH value of impregnation solution,calcination temperature and reduction temperature.The structures and properties were investigated by X ray powder diffraction and Transmission electron microscopy methods.Methanation activity from carbon monoxide and resistivity to sulfur poisoning were examined by impulse chromatography.Studies showed:A MoNi 4 alloy was detected by reducing the catalysts.It was the active sulfur resistant phase principally and enhanced strongly the sulfur resistance of the solid during methanation reaction.更多还原