摘要： A 2.2 Mt/a DCC-plus unit using patent technology developed by RIPP was built in Ningbo Daxie Petrochemical Limited Company and the dedicated catalyst was used. The plant was operated with atmospheric residue and hydrocracking tail oil as feedstocks to produce ethylene and propylene as main products and the cracking naphtha as by-product. The catalyst demonstrated good performance in ethylene and propylene yields, metal resistance, hydrothermal stability and fluidization. The yields of ethylene and propylene were steadily increased with the increasing the amount of dedicated catalyst, reaching as high as 4.56% and 20.08%, respectively, exceeding the design values. The yields of ethylene and propylene can increase by means of adjusting operating parameters.
中图分类号:
京公网安备 11010802027553号
