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正己烷在ZnNi/HZSM-5上芳构化反应的研究
引用本文:桂建舟,张晓彤,胡之德,孙兆林.正己烷在ZnNi/HZSM-5上芳构化反应的研究[J].兰州大学学报(自然科学版),2003,39(5):61-65.
作者姓名:桂建舟  张晓彤  胡之德  孙兆林
作者单位:1. 兰州大学,化学化工学院,甘肃,兰州,730000
2. 辽宁石油化工大学,石油化工学院,辽宁,抚顺,113001
3. 辽宁石油化工大学,石油化工学院,辽宁,抚顺,113001;兰州大学,化学化工学院,甘肃,兰州,730000
基金项目:国家自然科学基金 ( 2 0 0 760 0 8),辽宁省自然科学基金 ( 2 0 0 1 1 0 1 0 68),辽宁省教育厅攀登计划 ( 2 0 0 5 1 0 1 6)资助项目 .
摘    要:研究了HZSM-5负载型芳构化催化剂中的硅铝比,锌、镍金属质量分数等对正己烷芳构化反应的影响.结果表明:催化剂的硅铝比越大,其稳定性越好,但芳构化能力弱,造成芳烃和BTX收率低;催化剂镍质量分数为1.0%,锌质量分数达到3.0%时,芳烃和BTX收率最高,分别为31.45%6和30.24%,再增大锌的质量分数芳烃和BTX产率保持不变;锌质量分数为3.0%,镍质量分数高于1.0%的情况下芳烃和BTX收率反而下降.因而催化剂中锌、镍的最佳质量分数分别为3.0%和1.0%.此外,还对催化剂的酸性变化对正己烷芳构化的过程进行了初步探讨.

关 键 词:ZnNi/HZSM-5催化剂  芳构化  正己烷  分子筛
文章编号:0455-2059(2003)05-0061-05
修稿时间:2002年10月30

A study of n-hexane aromatization on the ZnNi/HZSM-5 catalyst
GUI Jian-zhou,ZHANG Xiao-tong,HU Zhi-de,SUN Zhao-lin.A study of n-hexane aromatization on the ZnNi/HZSM-5 catalyst[J].Journal of Lanzhou University(Natural Science),2003,39(5):61-65.
Authors:GUI Jian-zhou  ZHANG Xiao-tong  HU Zhi-de  SUN Zhao-lin
Institution:GUI Jian-zhou1,ZHANG Xiao-tong2,HU Zhi-de1,SUN Zhao-lin 2,1
Abstract:The effects of different Si/Al ratio,zinc and nickel content on the n-hexane aromatization performance were investigated.Evaluated results showed:1) The higher the Si/Al ratio,the more stability did the catalyst acquire,while the aromatic ability of the catalyst was lower and the yields of aromatics and BTX were smaller. 2) On the condition of 1.0% as nickel content,the catalytic activity of the catalyst with 3.0% as zinc content was the best and the yields of aromatics and BTX were 31.45% and 30.24%,respectively.When the zinc content was higher than 3.0%,overmuch zinc couldn't improve the yields of aromatics and BTX. 3) The optimal zinc and nickel content were 3.0% and 1.0%,respectively.Overmuch nickel decreased the yields of aromatics and BTX. Furthermore,the procedure of n-hexane aromatiztion reaction was discussed.
Keywords:ZnNi/HZSM-5 catalyst  aromatization  n-hexane
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