| 摘要 |
FIELD: petroleum processing. SUBSTANCE: method includes hydropurification and hydroaromatization conducted at elevated temperature and pressure wherein purified raw material, prior to be directed into hydroaromatization stage, is subjected to hydrocracking process, this process, as well as hydroaromatization process, being conducted at pressure 2.5-4.5 MPa. Ratio of catalyst loadings in the two processes is from 1:9 to 1:1. Temperature in all three stages is 320-380 C, hydrogen to raw material ratio 300-1000 normal cu. m/cu. m, and raw material feeding rate 1.0-10 h. Method increases resources for production of diesel fuel, including that having improved environmental characteristics: less than 0.5-0.2 wt % sulfur and less than 20 wt % aromatic hydrocarbons. EFFECT: enhanced efficiency of process. |
