Hydrodeoxygenation kinetics of syringol, guaiacol and phenol over H-ZSM-5
Kavimonica Venkatesan, J.V. Jayarama Krishna, S. S. Anjana, Parasuraman Selvam, R. Vinu
Abstract
This study is focused on understanding the hydrodeoxygenation (HDO) kinetics of pyrolysates from lignin such as phenol, guaiacol and syringol over H-ZSM-5 catalyst. The major products from syringol were guaiacol, phenol, anisole, cresol, benzene, and toluene. A reaction network was proposed to capture the transformations of syringol in which the transformations of guaiacol and phenol were included. A kinetic model comprising nine reactions of seven species was developed. The simulated yields of a majority of the HDO products matched well with experiments in the temperature range of 350-500 °C, substantiating that the obtained rate parameters reasonably represent the HDO kinetics.