化工学报2016，Vol.67Issue(12)：5024-5030,7.DOI:10.11949/j.issn.0438-1157.20160895
正构烷烃在Pt/SAPO-11催化剂上加氢异构反应性能
Performance ofn-alkane isomerization over Pt/SAPO-11 catalyst
摘要
Abstract
A Pt/SAPO-11 dual functional catalyst was prepared from hydrothermally synthesized SAPO-11 molecular sieve and used to study hydroisomerization ofn-C8,n-C12andn-C16alkanes. Results indicated that this catalyst had good isomerization activity and high selectivity as a result of appropriate acid center and hierarchical pore distribution. Yields for monomethyl-branched isomers and total branched isomers, ideal components for low freezing point diesel and high-grade lubricant, were above 60% and 75% respectively. The distribution of isomerization products was almost the same forn-alkanes of different chain lengths, which monomethyl-branched isomers were about 75% of total isomerization products and 40% were monomethyl-branched isomers with methyl group at middle chain. Isomerization and hydrocracking reactions were more likely to occur on longer chainn-alkanes. Under the same conversion, long-chainn-alkanes showed increase in hydrocracking but decrease in isomerization selectivity.关键词
分子筛/催化剂/加氢异构/正构烷烃/选择性/产物分布Key words
molecular sieves/catalyst/hydroisomerization/n-alkanes/selectivity/product distribution分类
化学化工引用本文复制引用
高善彬,迟克彬,杨晓东,赵震,胡胜,段爱军,于春梅,孙发民..正构烷烃在Pt/SAPO-11催化剂上加氢异构反应性能[J].化工学报,2016,67(12):5024-5030,7.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目（2014B-2508）。@@@@supported by the Scientific Research and Technology Development Foundation of PetroChina(2014B-2508) （2014B-2508）
