Abstract: In order to process Fischer-Tropsch (F-T) synthetic oil, on the basis of optimizing the acidic component of the catalyst to improve the temperature sensitivity of the catalyst and selectingthe suitable mesoporous silica-aluminum components, catalyst RCF-1 for isomerization-hydrocracking of F-T wax was developed,which had low temperature sensitivity and high selectivity of middle-distillate. Based on this catalyst, the low-temperature F-T hydrotreating and hydrofinishing CFH^L technology was employed. The commercial application of the catalyst RCF-1 showed that the cetane number and freezing point of the diesel distillate produced by the isomerization-hydrocracking unit were 76 and -33 ℃, respectively,using the low-temperature process for the hydrogenation of F-T synthetic CFH^L.The stabilization-hydrogenation and isomerization-hydrocracking naphtha fractions are particularly suitable as steam cracking feed.

Key words: hydrocracking, Fischer-Tropsch synthetic oil, diesel, middle distillate, catalyst