Ma Guixia, Hu Wenrong, Pei Haiyan, Jiang Liqun, Ji Yan, Mu Ruimin
a School of Environmental Science and Engineering , Shandong University , Jinan 250100 , People's Republic of China.
Environ Technol. 2015 Mar-Apr;36(5-8):622-7. doi: 10.1080/09593330.2014.954629. Epub 2014 Sep 15.
Heterogeneous KOH/Al2O3 catalysts, synthesized by the wet impregnation method with different KOH loadings (20-40 wt%) and calcination temperatures from 400°C to 800°C, were used to produce biodiesel from Chlorella vulgaris biomass by in situ transesterification. The highest yield of biodiesel of 89.53±1.58% was achieved at calcination temperature of 700°C for 2 h and 35 wt% loading of KOH, and at the optimal reaction condition of 10 wt% of catalyst content, 8 mL/g of methanol to biomass ratio and at 60°C for 5 h. The characteristics of the catalysts were analysed by X-ray diffraction, scanning electron microscopy and Brunauer-Emmett-Teller.
通过湿浸渍法合成了具有不同KOH负载量（20-40 wt%）且煅烧温度在400°C至800°C之间的非均相KOH/Al₂O₃催化剂，用于通过原位酯交换反应从普通小球藻生物质中生产生物柴油。在700°C煅烧2小时、KOH负载量为35 wt%的条件下，以及在催化剂含量为10 wt%、甲醇与生物质比例为8 mL/g且在60°C反应5小时的最佳反应条件下，生物柴油的最高产率达到了89.53±1.58%。通过X射线衍射、扫描电子显微镜和布鲁诺尔-埃米特-泰勒方法对催化剂的特性进行了分析。
