Synthesized high-silica hierarchical porous ZSM-5 and optimization of its reaction conditions in benzene alkylation with methanol
Synthesized high-silica hierarchical porous ZSM-5 and optimization of its reaction conditions in benzene alkylation with methanol
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高硅分级多孔ZSM-5的合成及其苯甲醇烷基化反应条件优化
DOI:
10.1016/j.cclet.2018.09.016
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发表时间:
2019-03
影响因子:
9.1
通讯作者:
李小年
中科院分区:
文献类型:
--
作者:
芮佳瑶;吕井辉;胡华雷;张群峰;王清涛;李小年
In our present work, the high-silica hierarchical porous ZSM-5 with appropriate Brönsted acidity and hierarchical porous structure was synthesized by sol-gel method for continuously catalytic conversion of benzene alkylation with methanol to xylene. The effects of temperature, pressure, benzene/methanol molar ratio and weight hour space velocity (WHSV) on the catalytic performance of the catalyst were investigated as well. As a result, the high-silica hierarchical porous ZSM-5 showed great performance as the yield of xylene was up to 41.1% under the optimum reaction conditions (500 °C, 0.1 MPa, Mbenzene/Mmethanol= 1:1.5 and WHSV = 4 h−1), while the selectivity to by-product, ethylbenzene, was well suppressed (below 0.1%). In addition, the catalyst structure and properties were characterized by the means of XRD, IR, TPD, SEM, TEM and N2physical adsorption technologies.
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影响因子:
3.8
作者:
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通讯作者:
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通讯作者:
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15.1
作者:
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通讯作者:
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影响因子:
2.8
作者:
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