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Studying the Effect of the Process Temperature on the Degree of Bio-Oil Hydrotreatment at Low Hydrogen Contents over NiCu–SiO 2 Catalyst with a High Metal Loading
Catalysis in Industry Pub Date : 2019-05-17 , DOI: 10.1134/s2070050419010094 A. A. Smirnov , M. V. Alekseeva , O. A. Bulavchenko , V. A. Yakovlev
中文翻译:
高金属负载NiCu-SiO 2催化剂上工艺温度对低氢含量生物油加氢程度的影响研究
更新日期:2019-05-17
Catalysis in Industry Pub Date : 2019-05-17 , DOI: 10.1134/s2070050419010094 A. A. Smirnov , M. V. Alekseeva , O. A. Bulavchenko , V. A. Yakovlev
Abstract
The hydrotreatment of pyrolysis bio-oil by hydrodeoxygenation at 6.0 MPa initial hydrogen pressure in the temperature range of 150–350°C and the presence of a NiCu–SiO2 catalyst synthesized using the sol-gel method is studied. The stability of the catalyst including the agglomeration of active component particles and the deposition of carbon on its surface is also investigated. It is shown that the content of oxygen in the products of the hydrotreatment of lignocellulose pyrolysis liquid decreases from 37 to 15 wt % upon an increase in the process temperature. Using a CHNS-O-analyzer, it is established that the amount of coke on the catalyst’s surfaces at a temperature of 350°C decreases by 4 times, compared with that formed at 150°C. X-ray diffraction shows that increasing the process temperature results in the gradual agglomeration of particles with a subsequent reduction in their size at high temperatures due to the dissolution of active catalyst components in the reaction medium.中文翻译:
高金属负载NiCu-SiO 2催化剂上工艺温度对低氢含量生物油加氢程度的影响研究