燃料化学学报2018，Vol.46Issue(2)：211-218,8.
Pt/SAPO-11催化剂载体的改性对正十四烷临氢转化性能的影响
Study on the transformation rule of n-tetradecane hydroisomerization over modified Pt/SAPO-11 catalyst
摘要
Abstract
Pt/SAPO-11 bifunctional catalyst was modified with citric acid and carbon black.The effects of different modified methods on the catalytic activity of Pt/SAPO-11 catalysts were investigated using n-tetradecane as the probe reaction.Results indicated that the isomerization products were mainly composed of monomethyl isomer,the modification has not changed the acid strength of the catalyst,but the acid concentration has decreased.The citric acid significantly improved the low temperature catalytic activity of the catalysts,while carbon black effectively promoted the mass transfer performance and monomethyl isomer selectivity of the catalysts.The cracking products were mainly composed of C6 compounds,and modification did not change the shape selective effects of SAPO-11 molecular sieve.Carbon number distribution of cracking products was obvious asymmetric distribution.关键词
临氢转化/改性/传质效应/酸性Key words
hydrotransformation/modification/mass transfer effect/acidity分类
化学化工引用本文复制引用
杨娜,王海峰,柳云骐,刘晨光..Pt/SAPO-11催化剂载体的改性对正十四烷临氢转化性能的影响[J].燃料化学学报,2018,46(2):211-218,8.基金项目
The project was supported by the National Natural Science Foundation of China (21676300).国家自然科学基金(21676300)资助 （21676300）
