Department of Biosystems Engineering, School of Biosystems Engineering and Food Science, Zijingang Campus, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
Bioresour Technol. 2012 Jan;104:783-7. doi: 10.1016/j.biortech.2011.09.126. Epub 2011 Oct 29.
The reaction pathways of co-liquefaction of swine manure and crude glycerol to bio-oil (ester compounds) were investigated. Swine manure was hydrothermal treated (340 °C, 27.5 MPa, 15 min) with a number of model compounds in a high pressure batch reactor under inert atmosphere. The compounds were methanol, pure glycerol, mixture of pure glycerol, pure methanol and H(2)O, and commercial fatty acids (linoleic acid). The chemical composition of the bio-oil was analyzed by GC/MS. Glycerol, methanol and water showed synergistic effects on manure liquefaction, increasing the oil yield as high as 65%. A maximum oil yield of 79.96% was obtained when linoleic acid reacted with swine manure. Based on the results, the reaction pathways were proposed. Esterification reactions occurred not only because the crude glycerol have methanol, but also because methanol can be produced from hydrothermal reactions of glycerol.
研究了猪粪与粗甘油共液化制备生物油（酯类化合物）的反应途径。在惰性气氛下，使用高压间歇式反应器，将猪粪与一些模型化合物（甲醇、纯甘油、纯甘油与甲醇和 H2O 的混合物、以及商业脂肪酸（亚油酸））在 340°C 和 27.5 MPa 下进行水热处理 15 分钟。采用 GC/MS 对生物油的化学成分进行了分析。甘油、甲醇和水对粪便液化具有协同作用，使油收率高达 65%。当亚油酸与猪粪反应时，油收率最高可达 79.96%。基于这些结果，提出了反应途径。酯化反应不仅发生在粗甘油中含有甲醇的情况下，而且还因为甲醇可以通过甘油的水热反应生成。
