Catalyst for producing aliphatic ketones from fermented product of biomass, and method for producing same
AssigneeIndustry-University Cooperation Foundation Hanyang University
InventorsYoung Woong Suh, Min Seok Kim, Jong Ha Park
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Abstract
The present disclosure discloses: a bifunctional Cu/Ce—Zr-based catalyst suitable for reacting a ketone and alcohol which are contained in a fermented product of biomass and have a low molecular weight, and converting same into an aliphatic ketone having an increased carbon number; a method for producing the catalyst; and a method for producing a fuel-range aliphatic ketone, such as gasoline and air fuel, by using the catalyst.
Claims18
A method of producing a Cu/Ce—Zr-based catalyst for aldol condensation, the method comprising:
- a) preparing a mixed support represented by a general formula CexZr1-xO2 (x is 0.5-0.95);
- b) loading a Cu2+ precursor on the mixed support;
- c) converting the Cu2+ precursor-loaded mixed support into its oxide form via calcination, and
- d) reducing the oxide obtained in step c) to produce a catalyst represented by Cu/CexZr1-xO2, whereby CuO in the oxide is converted into its reduced form (Cu0),
- wherein (i) the Cu content is 0.5 to 20 wt % on the element basis, (ii) the oxygen storage capacity is 500 to 1000 μmol/g, (iii) the specific Cu surface area is 1 to 60 m2/g, and (iv) the amount of CO2-TPD in the Cu/CexZr1-xO2 catalyst is in a range of 100 to 600 μmol/g.
A Cu/Ce—Zr-based catalyst for aldol condensation in which Cu particles or clusters are supported on a mixed support represented by CexZr1-xO2 (x is 0.5-0.95), the Cu particles or clusters being a reduced form thereof (Cu0),
- wherein (i) the Cu content is 0.5 to 20 wt % on the element basis, (ii) the oxygen storage capacity is 500 to 1000 μmol/g, (iii) the specific Cu surface area is 1 to 60 m2/g, and (iv) the amount of CO2-TPD in the Cu/CexZr1-xO2, catalyst is in a range of 100 to 600 μmol/g.
A method for producing aliphatic ketones from a fermented product of biomass, the method comprising:
- A) obtaining a fermented product of biomass containing acetone and butanol;
- B) converting a reactant derived from the fermented product of biomass into aliphatic ketones via a condensation reaction using a Cu/Ce—Zr-based catalyst;
- and
- C) separating and recovering the aliphatic ketones from the reaction product,
- wherein in the Cu/Ce—Zr-based catalyst, Cu particles or clusters are supported on a mixed support represented by CexZr1-xO2 (x is 0.5-0.95), the Cu particles or clusters are the reduced form thereof (Cu0), and the Cu/Ce—Zr-based catalyst satisfies the following requirements (i) to (iv):
- wherein (i) the Cu content is 0.5 to 20 wt % on the element basis, (ii) the oxygen storage capacity is 500 to 1000 μmol/g, (iii) the specific Cu surface area is 1 to 60 m2/g, and (iv) the amount of CO2-TPD in the Cu/CexZr1-xO2, catalyst is in a range of 100 to 600 μmol/g.
Dependencies are inferred from the claim text.