Co-deoxy-liquefaction of biomass and vegetable oil to hydrocarbon oil: Influence of temperature, residence time, and catalyst.
Co-deoxy-liquefaction of biomass and vegetable oil was investigated under the conditions of different temperatures (350-500 °C) and residence time as well as catalyst using HZSM-5. Results suggested low temperature was favorable for the formation of diesel-like products, while high temperature caused more gasoline-like products. By the addition of HZSM-5, at 450 °C alkanes content of the obtained oil with low oxygen content of 2.28%, reached a maximum of 56.27%, resulting in the highest HHV of 43.8 MJ kg(-1). High temperature favored cracking activity of HZSM-5 which reduced the char formation and contributed to the removal of carbonyl. Compared to temperature, the effect of residence time on products was relatively less; experiments indicated the optimum residence time was 15 min at which obtained oil with the highest yield of 17.78%, had better properties. Preliminary analysis of mechanisms showed biomass provided hydrogen for vegetable oil, facilitating hydrogenation of CC bonds of vegetable oil.
Chen
Yigang
Y
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Yang
Fan
F
Wu
Libin
L
Wang
Chao
C
Yang
Zhengyu
Z
D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D002384:Catalysis; D005740:Gases / Q000032:analysis; D006838:Hydrocarbons / Q000138:chemical synthesis*; D010938:Plant Oils / Q000737:chemistry*; D013025:Glycine max / Q000737:chemistry; D000074242:Sunflower Oil; D013696:Temperature; D013997:Time Factors
D005740:Gases; D006838:Hydrocarbons; D010938:Plant Oils; D000074242:Sunflower Oil