Issue 7, 2020

Catalytic conversion of methyl oleate to hydrocarbons: impact of cobalt oxide species integration in SiO2–Al2O3

Abstract

We report the effect of Co incorporation into a SiO2–Al2O3 supported catalytic system on the conversion, selectivity, and stability for the catalytic conversion of methyl oleate into diesel grade hydrocarbons with systematic changes in reaction parameters including temperature, time and hydrogen pressure. A series of cobalt loaded (4–12 wt%) SiO2–Al2O3 catalysts were prepared by a simple wet impregnation method. The formation of a Co3O4 active catalyst phase and its homogenous dispersion on the SiO2–Al2O3 surface is revealed successively by XRD and TEM. The results showed that the formation of a Co3O4 phase over CoO/Co, the amount of Co loading, reaction time, temperature and H2 pressure greatly determine the conversion and selectivity. Total ester conversions with more than 50% selectivity towards n-heptadecane/n-octadecene were achieved at a temperature as low as 280 °C and 15 bar H2 pressure within 10 h using a 6% cobalt loaded catalyst. Significant hydrocracking was observed at higher metal loading under similar reaction conditions.

Graphical abstract: Catalytic conversion of methyl oleate to hydrocarbons: impact of cobalt oxide species integration in SiO2–Al2O3

Supplementary files

Article information

Article type
Paper
Submitted
15 ربيع الثاني 1441
Accepted
21 رجب 1441
First published
22 رجب 1441

Sustainable Energy Fuels, 2020,4, 3308-3317

Catalytic conversion of methyl oleate to hydrocarbons: impact of cobalt oxide species integration in SiO2–Al2O3

R. Krishnapriya, U. Gupta, V. K. Soni and R. K. Sharma, Sustainable Energy Fuels, 2020, 4, 3308 DOI: 10.1039/C9SE01221D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements