Higher Acetone Conversion Obtained Over a TiO2-Pd Bifunctional Catalyst for Liquid-Phase Synthesis of Methyl Isobutyl Ketone: The Role of Al2O3 Support
Higher Acetone Conversion Obtained Over a TiO2-Pd Bifunctional Catalyst for Liquid-Phase Synthesis of Methyl Isobutyl Ketone: The Role of Al2O3 Support
复制标题
液相合成甲基异丁基酮的 TiO2-Pd 双功能催化剂获得了更高的丙酮转化率：Al2O3 载体的作用
DOI：
10.1007/s10562-019-02861-0
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发表时间：
2019
影响因子：
2.8
通讯作者：
Zhou Yonghua
中科院分区：
文献类型：
--
作者：
Zhu Qianling;Duan Hui;Lin Baining;Zhu Yifan;Hu Yingjie;Zhou Yonghua
AbstractWe reported a bifunctional catalyst TiO2/Al2O3and Pd/Cor for one-pot liquid-phase synthesis of MIBK from acetone in this paper. The characterizations of FT-IR, Raman spectra, TEM, XPS, CO2-TPD, NH3-TPD, Py-IR and TGA spectra revealed that the TiO2/Al2O3could possess more acid sites and especially Lewis acid sites due to the coexistence of TiO2and Al2O3. So a higher acetone conversion 35–45% at 150 °C and 2.0 MPa pressure was achieved than ever reported for MIBK liquid-phase synthesis. In addition, the catalyst could keep active for at least 90 h on stream at 80–90% MIBK selectivity. The phenomenon of carbonaceous accumulation on TiO2/Al2O leaded to the deactivation of catalyst.Graphic AbstractBecause of the coexistence of TiO2and Al2O3. TiO2/Al2O3could have more acid sites and especially Lewis acid sites. For liquid-phase synthesis of methyl isobutyl ketone, bifunctional catalyst TiO2/Al2O3&Pd/Cor showed higher acetone conversion.
