Studying the Effect of the Process Temperature on the Degree of Bio-Oil Hydrotreatment at Low Hydrogen Contents over NiCu–SiO2 Catalyst with a High Metal Loading
- 9 Downloads
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.
Keywords:bio-oil hydrotreatment Ni–Cu catalyst catalyst with high metal loading hydrodeoxygenation
This work was conducted within the framework of the budget project no. АААА-А17-117041710075-0 for the Boreskov Institute of Catalysis.
- 1.Energy Scenarios of the Shell Group Corporation until 2050. http://www.kommersant.ru/docs/Shell/Energy.pdf. Cited January 14, 2019.Google Scholar
- 8.Oasmaa, A. and Peacocke, C., A Guide to Physical Property Characterization of Biomass-Derived Fast Pyrolysis Liquids, Espoo, Finland: VTT Publications, 2001. https://www.vtt.fi/Documents/P450.pdf. Cited January 14, 2019.Google Scholar
- 12.Yakovlev, V.A., Khromova, S.A., Sherstyuk, O.V., Dundich, V.O., Ermakov, D.Y., Novopashina, V.M., Lebedev, M.Y., Bulavchenko, O., and Parmon, V.N., Catal. Today, 2009, vol. 144, nos. 3–4, pp. 362–366.Google Scholar
- 16.Lee, J.-H., Lee, E.-G., Joo, O.-S., and Jung, K.-D., Appl. Catal., A, 2004, vol. 269, nos. 1–2, pp. 1–6.Google Scholar
- 18.Ermakova, M.A. and Ermakov, D.Y., Appl. Catal., A, 2003, vol. 245, no. 2, pp. 277–288.Google Scholar
- 21.Bykova, M.V., Ermakov, D.Y., Kaichev, V.V., Bulavchenko, O.A., Saraev, A.A., Lebedev, M.Y., and Yakovlev, V., Appl. Catal., B, 2012, vols. 113–114, pp. 296–307.Google Scholar
- 22.Bykova, M.V., Ermakov, D.Y., Khromova, S.A., Smirnov, A.A., Lebedev, M.Y., and Yakovlev, V., Catal. Today, 2014, vols. 220–222, pp. 21–31.Google Scholar
- 24.Khromova, S.A., Smirnov, A.A., Bulavchenko, O.A., Saraev, A.A., Kaichev, V.V., Reshetnikov, S.I., and Yakovlev, V.A., Appl. Catal., A, 2014, vol. 470, pp. 261–270.Google Scholar