| 酸碱改性HZSM-5分子筛上甲醇制取均四甲苯的研究 |
| |
| 引用本文： | 肖何,高俊华,胡津仙,章斌,刘平,张侃.酸碱改性HZSM-5分子筛上甲醇制取均四甲苯的研究[J].燃料化学学报,2013,41(1):102-109. |
| |
| 作者姓名： | 肖何 高俊华 胡津仙 章斌 刘平 张侃 |
| |
| 作者单位： | 1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China |
| |
| 摘 要： | 对HZSM-5分子筛进行"酸碱两步改性",制备得到了H(0.2)-Na-ZSM-5、H(0.5)-Na-ZSM-5、H(0.2)-K-ZSM-5和H(0.5)-K-ZSM-5四种催化剂。通过XRD、NH3-TPD、ICP、FT-IR与Py-IR方法对催化剂进行表征,并在连续流动固定床反应装置上对催化剂进行评价。实验结果表明,H(0.2)-K-ZSM-5催化剂由于其孔径变大、弱的B酸量增多,从而提高了均四甲苯的选择性。
|
| 关 键 词： | HZSM-5 甲醇 均四甲苯 碱处理 酸处理 |
| 收稿时间： | 2012-07-17 |
Synthesis of durene from methanol over alkali and acid modified HZSM-5 |
| |
| XIAO He,GAO Jun-hua,HU Jin-xian,ZHANG Bin,LIU Ping,ZHANG Kan.Synthesis of durene from methanol over alkali and acid modified HZSM-5[J].Journal of Fuel Chemistry and Technology,2013,41(1):102-109. |
| |
| Authors: | XIAO He GAO Jun-hua HU Jin-xian ZHANG Bin LIU Ping ZHANG Kan |
| |
| Institution: | 1(1.State Key Laboratory of Coal Conversion,Institute of Coal Chemistry, Chinese Academy of Sciences,Taiyuan 030001,China; 2.University of Chinese Academy of Sciences,Beijing 100049,China) |
| |
| Abstract: | Alkali and acid modified HZSM-5 molecular sieves were prepared through treating with different alkali solutions together with nitric acid of different concentrations; four catalysts, i.e. H(0.2)-Na-ZSM-5, H(0.5)-Na-ZSM-5, H(0.2)-K-ZSM-5 and H(0.5)-K-ZSM-5 were obtained. These catalysts were characterized by means of XRD, NH3-TPD, ICP, FT-IR and Py-IR; their performance in the synthesis of durene from methanol was investigated in a fixed-bed down-flow reactor. The results showed that the highest selectivity to durene for methanol aromatization is achieved over the H(0.2)-K-ZSM-5 catalyst, which should be ascribed to its large pore size and abundant weak B acid sites arising from the alkali and acid modification. |
| |
| Keywords: | HZSM-5 methanol durene alkaline treatment acid treatment |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《燃料化学学报》浏览原始摘要信息 |
| 点击此处可从《燃料化学学报》下载免费的PDF全文 |
|
