Absorption and scattering of laser radiation by the diffusion flame of aviation kerosene S V Gvozdev, A F Glova, V Yu Dubrovskii et al. Abstract. Biological aviation kerosene was produced by one-step catalytic hydrotreatment of waste lard oil over Pt/SAPO-11 in a high-pressure fixed bed micro reactor. The influence of reaction conditions such as temperature, pressure, hydrogen oil ratio, and space velocity on the deoxygenation rate, the selectivity of C 8 -C 16 hydrocarbons and the isomerization rate of C 8 -C 16 hydrocarbons have been investigated. The experimental results showed that the temperature of 400℃, pressure of 5 MPa, hydrogen oil ratio of 1000 and space velocity of 1.2 h -1 were the best experimental reaction conditions. Under these conditions, the conversion rate is 96.62%, the selectivity of C 8 -C 16 hydrocarbons is 50.25%, and the isomerization rate of C 8 -C 16 hydrocarbons is 35.68%.