Wei Ziku, Xu Chunli, Li Baoxin
Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, Xi'an 710062, PR China.
Bioresour Technol. 2009 Jun;100(11):2883-5. doi: 10.1016/j.biortech.2008.12.039. Epub 2009 Feb 7.
Waste eggshell was investigated in triglyceride transesterification with a view to determine its viability as a solid catalyst for use in biodiesel synthesis. Effect of calcination temperature on structure and activity of eggshell catalysts was investigated. Reusability of eggshell catalysts was also examined. It was found that high active, reusable solid catalyst was obtained by just calcining eggshell. Utilization of eggshell as a catalyst for biodiesel production not only provides a cost-effective and environmental friendly way of recycling this solid eggshell waste, significantly reducing its environmental effects, but also reduces the price of biodiesel to make biodiesel competitive with petroleum diesel.
对废弃蛋壳在甘油三酯酯交换反应中的应用进行了研究，以确定其作为生物柴油合成固体催化剂的可行性。考察了煅烧温度对蛋壳催化剂结构和活性的影响。还研究了蛋壳催化剂的可重复使用性。结果发现，仅通过煅烧蛋壳就能得到高活性、可重复使用的固体催化剂。将蛋壳用作生物柴油生产的催化剂，不仅提供了一种经济高效且环保的方式来回收这种固体蛋壳废料，显著降低其对环境的影响，还能降低生物柴油的价格，使生物柴油与石油柴油具有竞争力。
