纤维素航油缩合-加氢工艺能耗分析

With the increasing maturity of technology for preparing furfural, 5-hydroxymethylfurfural, levulinic acid from lignocellulose biomass, platform compounds reuse technology has become an international hot spot. By studying the characteristics of the self-condensation and cross-condensation processes of platform compounds, as well as the feasible paths for subsequent hydrogenation to prepare synthetic jet fuel alkanes, two processes for preparing jet fuel with the full component use of lignocellulose biomass derived platform compounds were designed. Through energy consumption analysis and evaluation, the main energy consumption units and main input energy consumption materials in each process route were determined. Furfural-levulinic acid cross-condensation hydrogenation process compared with furfural self-condensation hydrogenation process and 5-hydroxymethyl furfural self-condensation hydrogenation process has obvious advantages in terms of heat consumption and hydrogen consumption. In order to realize the full-component utilization of straw, furfural-levulinic acid cross-condensation hydrogenation is combined with 5-hydroxymethylfurfural self-condensation hydrogenation process, and according to the current process technology, the jet fuel yield can reach 19.6%.