College of Physics and Chemistry, Department of Applied Chemistry, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China; Opening Laboratory of Alternative Energy Technologies, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China.
College of Physics and Chemistry, Department of Applied Chemistry, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China; Opening Laboratory of Alternative Energy Technologies, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China.
Bioresour Technol. 2014 Jun;162:341-9. doi: 10.1016/j.biortech.2014.03.157. Epub 2014 Apr 5.
The activities of several Lewis acid catalysts such SnCl2, FeCl3, ZnCl2, AlCl3, and NbCl5 for the in situ transesterification/esterification of lipid contained within a microalga (Chlorella pyrenoidosa) in ethanol at 350°C were examined to identify the most suitable catalyst in term of crude biodiesel (CBD) yield. Of those catalysts tested, ZnCl2 showed the highest performance toward the CBD production. Using ZnCl2 as catalyst, effects of reaction temperature (200-370 °C), time (0-120 min), ethanol to microalga ratio (EtOH:MA) (5/5-40/5), catalyst loading (0-30 wt.%), and algae moisture (0-80 wt.%) on the yields of product fractions and the properties of CBD were studied. The presence of ZnCl2 not only promoted the production of CBD but also showed activities toward the deoxygenation and denitrogenation of CBD. The moisture content in the starting material is the most influential factor affecting the yield and properties of CBD.
研究了几种路易斯酸催化剂（如 SnCl2、FeCl3、ZnCl2、AlCl3 和 NbCl5）在 350°C 下乙醇中对微藻（Chlorella pyrenoidosa）内所含油脂的原位酯交换/酯化反应的活性，以确定最适合粗生物柴油（CBD）产率的催化剂。在所测试的催化剂中，ZnCl2 对 CBD 的生产表现出最高的性能。使用 ZnCl2 作为催化剂，研究了反应温度（200-370°C）、时间（0-120 分钟）、乙醇与微藻的比例（EtOH:MA）（5/5-40/5）、催化剂负载量（0-30wt.%）和藻类水分含量（0-80wt.%）对产物馏分产率和 CBD 性质的影响。ZnCl2 的存在不仅促进了 CBD 的生产，而且对 CBD 的脱氧和脱氮也表现出活性。起始原料中的水分含量是影响 CBD 产率和性质的最主要因素。
