Abstract:Synthetic bio-oil was upgraded by solubilizing bio-oil in diesel by microemulsion technology. Diesel microemulsions were formed with rhamnolipid (RL) as surfactant and different kinds of normal alcohols with varying carbon chain length as cosurfactants. The effects of different microemulsion parameters on the solubilization capacity of bio-oil in diesel were investigated, which include initial bio-oil/diesel volume ratio (B/D ratio), surfactant concentration, cosurfactant type, and the mass ratio of cosurfactant/surfactant (C/R ratio). Meanwhile, fuel properties of bio-oil/diesel microemulsion were examined, which include elemental analysis, FT-IR analysis, thermogravimetric analysis, and other common fuel properties. Experimental results indicated that the proper bio-oil/diesel volume ratio was 3:7, the optimal concentration of RL was 15g/L, and the ideal cosurfactant was heptanol with C/R ratio of 2.0. Bio-oil/diesel microemulsion formed under the optimal solubilization conditions was proven to have fuel properties comparable to diesel.
李闪星, 袁兴中, 冷立健, 王雪丽, 朱仁. 柴油微乳体系对生物油增溶性能研究[J]. 中国环境科学, 2015, 35(3): 783-791.
LI Shan-Xing, YUAN Xing-Zhong, LENG Li-Jian, WANG Xue-Li, ZHU Ren. Study on the solubilization capacity of bio-oil in diesel by microemulsion technology.. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(3): 783-791.