| With Jatropha curcas oil as raw material, biological aviation kerosene was prepared by one-step hydrogenation with Pt/SAPO-11 as catalyst. The effects of reaction temperature, hourly speed, pressure and ratio of hydrogen to oil on deoxidation rate, C8-C16 ratio and C8-C16 hydrocarbon isomerization rate of the product were studied. The results showed that the high temperature and high pressure could promote the occurrence of secondary cracking reaction, so C8-C16 ratio decreased. The increase of hourly speed led to the reduction of average residence time, resulting in the decrease of deoxidation rate. Considering the deoxidation rate, C8-C16 ratio and C8-C16 hydrocarbon isomerization rate, the optimal preparation conditions were obtained as follows: reaction temperature 670 K, hourly speed 1.2 h-1, pressure 5 MPa and ratio of hydrogen to oil 1 000∶?1. Under these conditions, the deoxidation rate, C8-C16 ratio and C8-C16 hydrocarbon isomerization rate were 99.24%, 71.16% and 37.92% respectively. It provided a theoretical basis for the development of new energy sources and its application in the field of aviation. |
