Abstract
Abstract.A series of mesoporous silica KIT-6 supported Ni catalysts were prepared by wet impregnation method and evaluated for the lignin-derived diphenyl ether hydrogenolysis under atmospheric pressure in the continuous process. All the catalysts were characterized by powder XRD, \(\hbox {N}_{2}\)-physisorption, SEM, TEM, \(\hbox {H}_{2}\)-TPR analysis \(\hbox {H}_{2}\)-pulse chemisorption studies. Among the catalysts, 20-wt%-Ni/KIT-6 exhibited better activity and selectivity due to the well dispersion of Ni particles through uniform pore channel of KIT-6. 20Ni/KIT-6 shows consistent selectivity to aromatics with a decrease in conversion of diphenyl ether during the time on stream studies. Graphical Abstract SynopsisNi/KIT-6 catalysts are active in cleavage of \(\hbox {C}_{\mathrm{aryl}}\)-O-\(\hbox {C}_{\mathrm{aryl}}\) bond of Diphenyl ether, a lignin model compound, in a continuous process at atmospheric pressure
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