磷改性对γ-Al_2O_3酸性和催化活性的影响  

Effects of phosphorus modification on acid and catalytic activity of γ-Al_2O_3

作　　者：唐莉[1,2] 孙雪芹 刘丛华 丁伟 黄校亮 高雄厚 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070 [2]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《应用化工》2012年第10期1785-1787,共3页Applied Chemical Industry

摘　　要：采用溶胶-凝胶法制备磷改性的氧化铝,考察加入磷对氧化铝酸性、酸类型和活性的影响。研究表明,经过磷改性,氧化铝表面的酸类型不变,但在一定程度上改变了γ-Al2O3的酸量和活性,且随磷含量的增加,总酸量呈峰形,强酸量降低,催化活性也呈峰形,在磷含量为0.5%左右时总酸量和活性最高。Phosphorus modification of aluminum were prepared by sol-gel method.The effects of incorporation of phosphorus into aluminum on its acid,acid type and catalytic activity were investigated.Research showed that the surface acid type of aluminum was unchanged after P modification,but in some extent the acid amount and catalytic activity of γ-Al2O3 were changed.With increasing of P content,the total amount acid and catalytic activity were the peak shape while strong acid amount decreases.The total amount acid and catalytic activity is the highest when phosphorus content is 0.5%.

关 键 词：磷 Γ-AL2O3 酸性 酸类型 活性 

分 类 号：TE624.91[石油与天然气工程—油气加工工程] TE621