Hydrodeoxygenation and hydrocracking of oxygenated compounds over CuPd/γ-Al2O3–ZSM-5 catalyst

• DOI: 10.1007/s11144-021-02029-1
• Publication Date: 2021-07-23T13:02:53Z
• Authors: Mihai Marinescu; Daniela Roxana Po...; Dorin Bombos; Gabriel Vasilievici; Paul Rosca; Elena-Emilia Oprescu; Ion Bolocan
• Keywords: 13. Climate action; 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Biomass is one of the most important renewable energy resources to produce sustainable liquid fuel. This study presents the process of hydrodeoxygenation/hydrocracking on a model of oxygenated compounds such as fatty acid methyl esters using a bifunctional catalyst that contains a metallic function based on copper and palladium and an acid function type ZMS-5. Hydrocracking of methyl esters on the bifunctional catalyst CuPd/γ-Al2O3–ZSM-5 realized on a fix bed reactor led to obtaining of n-alkanes, iso-alkanes, saturated and aromatic cyclic hydrocarbons with 9 to 18 carbon atoms. The conversion reach 100% value at temperature higher than 350 °C. The yield in n-alkanes varies with a maximum at temperature of 325 °C, meanwhile, the yield in iso-alkanes remains approx. constant. The cyclization and aromatization reactions are favored at temperatures higher than 350 °C.