Commercial application of LDO-75 FCC catalyst processing heavy feedstocks

The commercial application of LDO-75 FCC catalyst for heavy feedstocks in the 1st FCCU of PetroChina Dushanzi Petrochemical Company was presented. The results of performance test showed that when LDO-75 catalyst occupied over 80% of the catalyst inventory, in comparison with reference catalyst the yields of slurry oil and dry gas reduced 0.17 and 0.49 percentage points, respectively; the yields of total liquid products and light oils increased 0.54 and 1.37 percentage points, respectively; the RON and MON of FCC gasoline increased 1.9 and 1.6 units, respectively. LDO-75 catalyst possesses the characteristics of increase heavy oil conversion, good product slates, high gasoline octane number, enhanced yields of liquid products and light oils, which could meet the requirements of producing high octane gasoline.