111003-03-3Relevant articles and documents
A biomass phenolic compound catalytic hydrogenation method of synthesizing cyclohexyl alcohol compound (by machine translation)
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Paragraph 0030; 0033, (2017/09/26)
The invention relates to a biomass phenolic compound catalytic hydrogenation method of synthesizing cyclohexyl alcohol compound. It in order to load the noble metal palladium titanium dioxide as catalyst, biomass phenolic compound by catalytic hydrogenation synthesis of cyclohexyl alcohol compound, the obtained cyclohexyl alcohol compound can be used as fuel additives or pharmaceutical chemical intermediate, improving the utilization rate of renewable sources of energy, to relieve the energy crisis and the increasing importance attached to the problem of environmental pollution, its catalyst has simple preparation process, green environmental protection, does not pollute the environment, suitable for popularization and application. (by machine translation)
Hydrogenation of lignin-derived phenolic compounds over step by step precipitated Ni/SiO2
Shu, Riyang,Zhang, Qi,Xu, Ying,Long, Jinxing,Ma, Longlong,Wang, Tiejun,Chen, Pengru,Wu, Qingyun
, p. 5214 - 5222 (2016/02/05)
The harsh reaction conditions for the valorization of lignin-derived phenolic compounds considerably limit the efficient utilization of the lignin derivatives. Here, we put forward a high efficient and selective hydrogenation process for phenolic compounds at a mild condition over step by step precipitated Ni/SiO2 catalyst. The properties of the Ni/SiO2 catalysts by different preparation methods were detailedly compared using various characterization measurements. Catalytic activity of the catalysts was tested by the hydrogenation of guaiacol, and the results showed that guaiacol could be completely converted into cyclohexanol with 99.9% selectivity at 120 °C, 2 MPa H2 atmosphere for 2 h. Other typical lignin-derived phenolic compounds also had excellent hydrogenation performance and great energy efficiency. Catalyst characterization results demonstrated that the high catalytic activity of the step by step precipitated Ni/SiO2 was mainly ascribed to its polyporous spherical structure, which led to the large specific surface area and high nickel dispersion. The appropriate acidity of the catalyst also promoted the catalytic performance significantly. Furthermore, the catalyst exhibited an excellent recyclability, where no significant loss of the catalytic activity was showed out after 3 runs.
An efficient cleavage of the aryl ether C-O bond in supercritical carbon dioxide-water
Chatterjee, Maya,Ishizaka, Takayuki,Suzuki, Akira,Kawanami, Hajime
supporting information, p. 4567 - 4569 (2013/06/04)
A simple and highly efficient Rh/C catalyzed route for the cleavage of the C-O bond of aromatic ether at 80 °C in the presence of 0.5 MPa of H 2 in the scCO2-water medium is reported; CO2 pressure and water play a key role under the tested conditions.
