Abstract
Exploration compound p-menthan-3-ol has been carried out using Cu/ZnBr 2 /γ-Al 2 O 3 as a catalyst in N2 and H2 atmospheric gases. This research was done in several stages that is Cu/ZnBr 2 /γ-Al 2 O 3 catalyst preparation, catalyst characterization, and catalytic reactions toward citronellal. Impregnation of Cu (NO 3 ) 2 .3H 2 O in ZnBr 2 /γ-Al 2 O 3 wasperformed in methanol as a solvent for Cu/ZnBr 2 /γ-Al 2 O 3 catalyst preparation. Stage was followed by a catalytic reaction to citronellal that performed in a glass reactor modification with atmospheric gases H 2 ; N 2 and H 2 at 90 O C temperature variations and 120 O C. Catalyst characterizations was performed using XRD and SEM - EDX, so it could be seen with either Cu was impregnated on ZnBr 2 /γ-Al 2 O 3 . Gas chromatography (GC) and gas chromatography - mass spectrum (GC-MS) was used to determine the activity of the catalyst through a catalytic reaction product analysis. Isopulegol was obtained from the product p- menthan-3-ol with a selectivity of 37.75 % in H 2 gas atmosphere at a temperature of 120 O C for 4 hours, and isopulegol selectivity was obtained in atmospheric gases N 2 : H 2 = 3:2 at a temperature of 120 O C with reaction time of 4 hours was equal to 25.82 % .
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