Abstract: In order to convert low-quality heavy raw materials into high-quality clean oil products and chemicals with high selectivity and low energy consumption, the highly selective catalytic cracking (RTC-G) technology was developed by SINOPEC Research Institute of Petroleum Processing Co.,Ltd.and applied in SINOPEC Jinan Company for the first time. Compared with blank calibration, under the same conversion rate, the yield of LPG increased by 1.96 percentage points, the yield of gasoline decreased by 0.51 percentage point, the yields of dry gas and coke reduced by 0.49 percentage point and 0.80 percentage point,respectively, the yield of slurry decreased by 2.18 percentage points, and the product distribution was significantly improved. By appropriately increasing the conversion rate, the yield of liquefied gas was basically unchanged, the yield of gasoline increased by 3.73 percentage points, the yield of slurry decreased by 3.21 percentage points, and the selectivity of coke decreased by 0.78 percentage point. After using RTC-G technology, the selectivity of high-value products was improved, and the product structure was further improved. RTC-G technology has become an effective means for enterprises to reduce carbon emission and to increase benefits under the background of “Double Carbon” target.

Key words: catalytic cracking, high selectivity, fast fluidized bed, gasoline, coke