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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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酸碱改性hzsm-5分子筛上甲醇制取均四甲苯的研究
, PP. 102-109
Keywords: hzsm-5,甲醇,均四甲苯,碱处理,酸处理
Abstract:
？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。
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