In this study, zeolite Beta was chosen as the active component in the FCC additive. The influence of several parameters on the FCC reactions, such as the matrix activity, surface acidity and the Si/Al ratio of the zeolite Beta, was carefully explored. It is found that, with the decrease of the surface acidic sites amount, the yield of the LPG and coke would decrease, the total liquid yield would increase, and the products distributions could be improved. When some active Alumina was added into the inert matrix, the conversion of the heavy oil could be increased with controlled coking. Based on this knowledge, zeolite Beta with a suitable Si/Al ratio was chosen to make a new type of FCC additive with high heavy oil conversion, high yield of gasoline with high Octane number. Compared with conventional ZSM-5 based additives, this new catalyst has better activity and higher heavy oil conversion ability. This additive could help to increase the octane number of the gasoline and control the LPG yield simultaneously.

Study on the zeolite beta based octane promoter and its application in heavy oil catalytic cracking

245th National Meeting (2013)

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