Abstract:

High pressure hydrocracking unit of Sinopec Yanshan Beijing Co first production cycle by RN-32/RHC-1 composite catalyst, steam jet fuel collection filter.19.35%,to change the production of jet fuel cycle second as RN-32V/RHC-3 composite catalyst, steam jet fuel collection filter.29.71%, An increase of percentage points, with the yield of 31.97% differern design, Sinopec Yanshan Beijing branch through the catalyst performance and equipment calibration data analysis, Main reason for after replacement of high activity catalyst cracking depth conversion improved significantly, caused by lack of device for high and low pressure separation system and product separation system capacity, can not guarantee the device with high conversion operation depth and jet fuel are completely separated. In view of the above problems, through the preliminary design calculation and feasibility analysis to determine the high and low pressure separation system of supporting instrumentation and fractionation system tray in the corresponding transformation and through the maintenance of it will problems may be eliminated.after the transformation of jet fuel,the average yield was 30.67%,Close to the design requireements, the yield of jet fuel aim.

Key words: hydrocracking, jet fuel, technical revamping, implementation effect