Characteristics of solid super acid SO42-/TiO2-Al2O3-SnO2 during Conversion of Glucose to Levulinic Acid
- 能源院－会议论文 
The effects of catalyst amount on the yields of levulinic and hydroxymethyl furfural were investigated during conversion of glucose to levulinic acid catalyzed by solid super acid SO42-/ TiO2-Al2O3-SnO2. XRD and XPS were used to analyse the characteristics of solid super acid SO42-/ TiO2-Al2O3-SnO2before reaction and after reaction. The results showed that: solid super acid SO42-/ TiO2-Al2O3-SnO2exhibited good catalytic activity in the reaction of hydrolysis of glucose to produce levulinic acid. There were three obvious peaks in these XRD spectra. The peaks on 44.6掳 and 67.1掳 were the characteristic diffraction peaks of 纬-Al2O3. The anatase characteristic diffraction peak was on 37.4掳. The catalyst was steady in the process. The binding energy of S 2p was similar to the binding energy of standard S6+2p in the S 2p XPS spectrum of solid super acid. O 1s XPS was double-peaked spectrum. The increase of element C was the main reason of inactivation of catalyst. 漏 (2012) Trans Tech Publications Switzerland.