Methyl vinyl ketone （MVK） is a kind of high-value chemical which has been widely used in many fields. In this paper, it is formed from oxidation of levulinic acid--a hydrolysis product of biomass. Copper oxide suppo...Methyl vinyl ketone （MVK） is a kind of high-value chemical which has been widely used in many fields. In this paper, it is formed from oxidation of levulinic acid--a hydrolysis product of biomass. Copper oxide supported on cerium dioxide （CuO/CeO2） and alumina （CuO/AI203） were prepared and used for the oxidation of levulinic acid （LA）. The oxidants were characterized by means of X-ray diffraction （XRD）, H2-temperature programmed reduction （H2-TPR） and atomic force microscope （AFM） techniques. CuO/CeO2 and CuO/A1203 show a different behav- ior with respect to pure CuO. The experiments revealed that CuO/CeO2 and CuO/AI203 can oxidize LA and get methyl vinyl ketone [yield of 15.5% detected by head space-gas chromatograph-mass spectrometer （HS-GC-MS）] under mild reactive conditions, while pure CuO oxidizes LA to produce butanone （MEK）.展开更多
基金Project supported by the National Key Basic Research Program （No. 2010CB732201） from the Ministry of Science and Technology of China and the National Natural Science Foundation of China （Nos. U0733001, 50776035）.
文摘Methyl vinyl ketone （MVK） is a kind of high-value chemical which has been widely used in many fields. In this paper, it is formed from oxidation of levulinic acid--a hydrolysis product of biomass. Copper oxide supported on cerium dioxide （CuO/CeO2） and alumina （CuO/AI203） were prepared and used for the oxidation of levulinic acid （LA）. The oxidants were characterized by means of X-ray diffraction （XRD）, H2-temperature programmed reduction （H2-TPR） and atomic force microscope （AFM） techniques. CuO/CeO2 and CuO/A1203 show a different behav- ior with respect to pure CuO. The experiments revealed that CuO/CeO2 and CuO/AI203 can oxidize LA and get methyl vinyl ketone [yield of 15.5% detected by head space-gas chromatograph-mass spectrometer （HS-GC-MS）] under mild reactive conditions, while pure CuO oxidizes LA to produce butanone （MEK）.
