石油化工2017，Vol.46Issue(7)：869-873,5.DOI:10.3969/j.issn.1000-8144.2017.07.006
抗铁污染催化裂化催化剂
Research on anti-iron contamination catalytic cracking catalyst
摘要
Abstract
Traditional kaolin was modified by alkali extraction method and it was used as matrix material for preparation of catalytic cracking catalyst.The structure and properties of modified kaolin were characterized by N2 adsorption-desorption,FTIR and element analysis.The anti-iron contamination performance of the prepared catalyst was studied by heavy oil catalytic cracking.The results indicate that,compared with traditional kaolin,modified kaolin possesse much bigger specific surface area of 158 rn2/g and pore volume of 0.40 m2/g with Al2O3 content increasing to 65.23％(w),which improve the anti-iron contamination performance of the catalyst by increasing the surface acid sites accessibility of the catalyst.In same iron contamination conditions,in contrast with the catalyst using traditional kaolin,the heavy oil conversion,gasoline yield,total liquid yield and light oil yield of catalyst using modified kaolin are increased by 1.94,2.01,2.09,1.24 percent points respectively,dry gas,coke and bottom yields are decreased by 0.17,0.73 and 1.17 percent points respectively.关键词
高岭土/改性/铁污染/催化裂化/催化剂Key words
kaolin/modification/iron contamination/catalytic cracking/catalyst分类
化学化工引用本文复制引用
袁程远,潘志爽,谭争国,张海涛..抗铁污染催化裂化催化剂[J].石油化工,2017,46(7):869-873,5.基金项目
中国石油天然气股份有限公司科技管理部资助项目(2016B-2005). （2016B-2005）
