This article refers to the application of DOCO olefin-reducing catalyst developed by RIPP and manufactured by the Catalyst Factory of Changling Refining and Chemical Company in the 1.4 Mt/a RFCCU at Daqing Petrochemic...This article refers to the application of DOCO olefin-reducing catalyst developed by RIPP and manufactured by the Catalyst Factory of Changling Refining and Chemical Company in the 1.4 Mt/a RFCCU at Daqing Petrochemical Company. Results of operation over two months had revealed that this catalyst had good olefin-reducing ability and heavy oil converting ability adapted to paraffinic feedstock. The gasoline olefin yield had been reduced to 36.1 v% from 54.2 v% with gasoline RON rating decreased by 1.4 units. The induction period of gasoline had significantly increased to 952 mm, while the coke yield was increased by 0.05 percentage point with light oil yield dropping by only 0.02 percentage point. The FCC product distribution is favorable.展开更多
The product distribution and gasoline quality of FCC process, especially the olefin content,heavily depends on the catalyst performance in terms of selective/non-selective hydrogen transfer reaction selectivity. A rel...The product distribution and gasoline quality of FCC process, especially the olefin content,heavily depends on the catalyst performance in terms of selective/non-selective hydrogen transfer reaction selectivity. A reliable experimental protocol has been established by using n-dodecane as a probe molecule to characterize the selective hydrogen transfer ability of catalytic materials. The results obtained have been correlated with the performance of the practical catalysts.展开更多
文摘This article refers to the application of DOCO olefin-reducing catalyst developed by RIPP and manufactured by the Catalyst Factory of Changling Refining and Chemical Company in the 1.4 Mt/a RFCCU at Daqing Petrochemical Company. Results of operation over two months had revealed that this catalyst had good olefin-reducing ability and heavy oil converting ability adapted to paraffinic feedstock. The gasoline olefin yield had been reduced to 36.1 v% from 54.2 v% with gasoline RON rating decreased by 1.4 units. The induction period of gasoline had significantly increased to 952 mm, while the coke yield was increased by 0.05 percentage point with light oil yield dropping by only 0.02 percentage point. The FCC product distribution is favorable.
文摘The product distribution and gasoline quality of FCC process, especially the olefin content,heavily depends on the catalyst performance in terms of selective/non-selective hydrogen transfer reaction selectivity. A reliable experimental protocol has been established by using n-dodecane as a probe molecule to characterize the selective hydrogen transfer ability of catalytic materials. The results obtained have been correlated with the performance of the practical catalysts.
