Effect of Different Metal Modified Dolomite Catalysts on Catalytic Glycerol Hydrogenolysis towards 1,2-Propanediol
نویسندگان
چکیده
A series of metal modified dolomite catalysts (10%Ni-20%Cu/Dol, 10%Co-20%Cu/Dol, 10%Fe-20%Cu/Dol, 10%Zn-20%Cu/DolNi) were synthesized via method impregnation, later calcined at 500 ℃ and reduced by 5%H2 600 ℃. Those formerly tested for their physico-chemical properties BET, BJH, XRD, H2-TPR, NH3–TPD, CO2-TPD SEM, followed evaluation in catalytic performance glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO). Among the examined catalysts, 10%Ni-20%Cu/Dol showed optimum activity owing good copper-nickel-dolomite interaction. The outcomes from characterizations disclosed that presence nickel-copper species which principally enriched on surface thereby enhanced catalyst terms reducibility along with adequate acidity. All features 10%Ni-20%Cu/Dolcatalyst added its high 83.5% conversion (GC) 75% 1,2-PDO low methanol as side reaction product under 200 ℃, 4 MPa H2 10 h duration test, 1 g dosage 20 wt% concentration.
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ژورنال
عنوان ژورنال: Sains Malaysiana
سال: 2022
ISSN: ['0126-6039', '2735-0118']
DOI: https://doi.org/10.17576/jsm-2022-5105-10