用热分析技术和反应色谱等手段及催速老化法对加氢裂化催化剂的积炭行为进行了研究 .结果发现 :对所涉及的几种不饱和烯烃反应物而言 ,随着碳链长度的增长 ,催化剂积炭量略有降低 ;对直链烷烃反应物 ,碳链越长则催化剂积炭量越多 ,且分布于催化剂所有的孔内 ;在碳数相同的情况下 ,烯烃的不饱和度越大越容易积炭 . The carbon deposition behavior of hydrocracking catalyst was studied by means of thermal analysis and reaction chromatography, and the method of accelerated aging.It was found that for several unsaturated olefin reactants involved, with the increase of carbon chain length The catalyst carbon deposition slightly decreased; for linear alkane reactant, the longer the carbon chain, the more the catalyst coke, and distributed in all the pores of the catalyst; in the case of the same number of carbons, the unsaturated olefin The greater the degree of coke more easily.