Published on April 2020 | Chemical Reaction Engineering, Catalyst development

Palladium supported on nano-hybrid Zr–Al–La catalyst for hydrogenation of 2-ethylanthraquinone

Hydrogenation catalyst is of major importance in the production of eco-friendly oxidant hydrogen peroxide. Herein, in this work co-precipitation and an incipient wetness-impregnation method are used for the synthesis of Nano-hybrid (Zr–Al–La (ZAL)) supported Pd catalyst for the hydrogenation of 2-Ethylanthraquinone. The performance test of the developed catalyst was carried out in high-pressure autoclave reactor at 75°C and 0.3 MPa. It was found that the catalyst not only improved conversion of 2-ethylanthraquinone (93%) but also showed higher hydrogenation efficiency of 9.15gH2O2/L with much lower concentration of the catalyst (0.5 g) at 75°C and 0.3 MPa compared to conventional catalysts Pd/PSC and Pd/PAC, which gave 4 g/L and 5 g/L respectively with 500 g of catalyst. Furthermore, the kinetic study indicated that the hydrogenation of 2-ethylanthraquinone found to be a zero and first order kinetics with respect to a 2-ethylanthraquinone concentration and H2 concentration respectively. The activation energy was found to be 56.156 J/mol.