Abstract：In order to enhance aromatization reaction to achieve the goal of reducing the olefin content of gasoline fractions and maintaining high octane number during the F-T wax catalytic cracking process, the equilibrium concentration of the reaction system was calculated according to the minimum Gibbs free energy method. And the competitive relationship of reactions which increased aromatics in gasoline fractions were analyzed. Meanwhile, the product analysis method was used to calculate the macroscopic thermal effects of the catalytic cracking reaction process, and the correlation between Fischer-Tropsch wax cracking performance and product distribution and thermodynamic reaction tendency was compared and analyzed. The calculation results showed that the conversion of the raw materials was not limited by thermodynamics and the tendency of secondary cracking could be reduced, which increased the hydrogen transfer reaction and achieved the purpose of the goal of "reducing olefin, increasing aromatization and improving yield". At the same time, the reaction heat decreased with the increase of hydrogen transfer reaction at 440 ℃. The reaction heat of the system can be reduced by 30% so that it is beneficial to achieve the heat balance of the reaction system and obtain the target product by coupling various reactions in a single reactor.
HAN Jiannian,WANG Gang,YANG Mei et al. Thermodynamics and Reaction Performance Analysis of Fischer-Tropsch Wax Catalytic Cracking to Clean Gasoline[J]. 化学反应工程与工艺, 2020, 36(4): 364-370.
