| Abstract: | Since April 1998 the coker gasoline hydrotreating unit at Daqing refinery has been using the do mestic advanced hydrotreating catalyst RN-10. In the past 1.5 years the RN-10 catalyst has given remark able high-quality naphtha as did the two batches of RN-1 catalyst during the eight-year period. With the same feedstock and at the same process regime, the RN-10 catalyst has shown its specifics featuring a lower initial reaction temperature, a lower rate of temperature rise, a lower mean reaction temperature, and higher operating flexibility. When processing shoddy gasoline or diesel fuel to produce the same product at identical process operating conditions, the capacity of unit using the RN-10 catalyst can be greatly increased. |
