文章摘要
马文,徐森元,董正鑫,牛明爽,马剑君,虞乐建,蒋荣立.硅源对高岭土合成ZSM-5分子筛的影响[J].精细化工,2019,36(5):
硅源对高岭土合成ZSM-5分子筛的影响
Influence of Silica Source on ZSM-5 Molecular Sieves Synthesized by Kaolin
投稿时间:2018-09-12  修订日期:2018-12-06
DOI:
中文关键词: 高岭土  ZSM-5分子筛  硅源  甲醇制汽油
英文关键词: kaolin  ZSM-5 molecular sieve  silica source  Methanol to Gasoline
基金项目:国家自然科学基金项目
作者单位E-mail
马文 中国矿业大学 mawen3@yeah.net 
徐森元 中国矿业大学  
董正鑫 中国矿业大学  
牛明爽 中国矿业大学  
马剑君 中国矿业大学  
虞乐建 中国矿业大学  
蒋荣立 中国矿业大学 ronglijcumt@163.com 
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中文摘要:
      本文以煤系高岭土为原料,水玻璃、气相SiO2、正硅酸四乙酯和硅酸为硅源,氢氧化钠为矿化剂,四丙基氢氧化铵为模板剂合成 ZSM-5分子筛。随后,在氯化铵氛围下离子交换合成HZSM-5分子筛。利用 XRD、SEM、FTIR、NH3-TPD、BET对HZSM-5进行了表征。最后,利用甲醇制汽油反应(MTG)测试HZSM-5的催化性能。结果表明,以硅酸合成的HZSM-5分子筛催化效果优异,在MTG反应43 h后开始失活,高碳烃类产物的选择性38.99%。
英文摘要:
      In this paper, the ZSM-5 zeolite was synthesized using coal-series kaolin as material, sodium silicate, fumed silica, silicon acetate and silicic acid as silicon sources, sodium hydroxide as mineralizer and tetrapropylammonium hydroxide as template. Then, HZSM-5 was synthesized by exchanging ion in ammonium chloride. The HZSM-5 samples were characterized by XRD, SEM,FTIR, NH3-TPD and BET. Finally, the catalytic performance of HZSM-5 samples were evaluated by Methanol to Gasoline(MTG) reaction. The results indicate that the HZSM-5 molecular sieve synthesized from silicic acid has an excellent catalytic performance, starting to deactivate at 43 h after MTG reaction, and the selectivity of higher hydrocarbons products was 38.99%.
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