Renewable energy is an energy source from natural processes that are continuously replenished, and the resources are inexhaustible. The use of renewable energy is promising compared to fossil fuels for the reason of its sustainability. Biomass is one of the renewable resources consisting of carbon polymers such as cellulose, hemicellulose, and lignin. Hydrolysis of cellulose gives ethylene glycol as an important intermediate product for bioethanol production by one-step catalytic hydrogenation. In this research, the catalytic hydrogenation of ethylene glycol was carried out using Ni-Cu-based catalysts. The reaction was conducted in an autoclave batch reactor using 2 MPa H2 gas at 300oC for 2-4 hours. Analysis of the products using gas chromatography gave 29.26% ethanol using 2%Ni-20%Cu/SiO2 after 4 h. The other products detected are aliphatic hydrocarbons, such as 2-butanone and 3-hydroxy-2-butanone. The cyclic hydrocarbons, such as 1,4-dioxane, 1,3-dioxolane, and cyclohexane also observed. From this result, it is suggested that the combination of Ni-Cu catalyst is important to promote hydrogenation and/or hydrogenolysis reactions of ethylene glycol into ethanol. Further experiments are proposed to increase the ethanol yield and clarify the mechanism of the reaction.

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