Over the past decades SINOPEC has been uninterruptedly engaging in the development and upgrading of deep catalytic cracking （DCC） technology for manufacturing propylene from heavy oil. Recently SINOPEC after having ...Over the past decades SINOPEC has been uninterruptedly engaging in the development and upgrading of deep catalytic cracking （DCC） technology for manufacturing propylene from heavy oil. Recently SINOPEC after having made a lot of progress in the area of oil refining at the molecular level has developed a new generation DMMC-1 type catalyst designed for the DCC process. The laboratory evaluation tests have shown that compared to the existing MMC-2 type catalyst that features the best comprehensive performance, the DMMC-1 type catalyst has increased the propylene yield by 2.2% with the propylene selectivity increased by 10%. The said catalyst has improved its ability for heavy oil cracking and coke selectivity along with reduction of olefin content in gasoline to achieve a better product distribution and improve the product quality. The results of application of the said catalyst in a 650-kt/a commercial DCC unit at SINOPEC Anqing Branch Company have revealed that the DMMC- 1 catalyst demonstrated an enhanced capability for heavy oil cracking and could increase the total liquid yield to 84.56 m% from 83.92 m%, the LPG yield to 38.90 m % from 34.60 m %, the propylene yield to 17.80 m% from 15.37 m% and the propylene concentration to 45.91 m% from 44.91 m%, and reduce the coke yield from 7.61 m% to 7.05 m% and the olefin content in gasoline from 42.3 v% to 37.5 v%, resulting in an incremental profit amounting to 52.19 million RMB a year. This technology has further upgraded and developed the DCC technology which has been commanding a leading position among the industry peers.展开更多
Deep Catalytic Cracking （DCC） developed by RIPP （Research Institute of Petroleum Processing）, SINOPEC is a catalytic conversion process derived from the FCC process using heavy feedstocks for producing raw materia...Deep Catalytic Cracking （DCC） developed by RIPP （Research Institute of Petroleum Processing）, SINOPEC is a catalytic conversion process derived from the FCC process using heavy feedstocks for producing raw materials used in the petrochemical industry, such as ethylene and propylene. It was firstly demonstrated in 1990 and has been commercialized since 1994. Up to now, seven units have been put into production inside and outside China, and many other DCC units are under construction and in the phase of design now. Products ofpropylene and ethylene from DCCU have been used as feedstock for manufacturing high quality polypropylene, polyethylene and acrylonitrile. Many innovations on technological process, and preparation of catalytic materials used in the DCC process will be presented in this paper.展开更多
RIPP has developed the third generation novel DCC catalysts aimed at increasing the propylene yield, named as the MMC series catalysts. This catalyst is of the MFI structure composed of the ZSP zeolite as the main act...RIPP has developed the third generation novel DCC catalysts aimed at increasing the propylene yield, named as the MMC series catalysts. This catalyst is of the MFI structure composed of the ZSP zeolite as the main active component, which has higher capability for producing low-carbon olefins, in particular the propylene. The commercial application of this catalyst at SINOPEC Anqing Petrochemical Company has revealed that the adoption of the MMC-2 catalyst has resulted in a 1.6-4.0 percentages increase in propylene yield under basically similar conditions in terms of the feedstock property and process operating regime coupled with reduction in gasoline olefin COntent and increase in aromatic content to improve the gasoline quality.展开更多
文摘Over the past decades SINOPEC has been uninterruptedly engaging in the development and upgrading of deep catalytic cracking （DCC） technology for manufacturing propylene from heavy oil. Recently SINOPEC after having made a lot of progress in the area of oil refining at the molecular level has developed a new generation DMMC-1 type catalyst designed for the DCC process. The laboratory evaluation tests have shown that compared to the existing MMC-2 type catalyst that features the best comprehensive performance, the DMMC-1 type catalyst has increased the propylene yield by 2.2% with the propylene selectivity increased by 10%. The said catalyst has improved its ability for heavy oil cracking and coke selectivity along with reduction of olefin content in gasoline to achieve a better product distribution and improve the product quality. The results of application of the said catalyst in a 650-kt/a commercial DCC unit at SINOPEC Anqing Branch Company have revealed that the DMMC- 1 catalyst demonstrated an enhanced capability for heavy oil cracking and could increase the total liquid yield to 84.56 m% from 83.92 m%, the LPG yield to 38.90 m % from 34.60 m %, the propylene yield to 17.80 m% from 15.37 m% and the propylene concentration to 45.91 m% from 44.91 m%, and reduce the coke yield from 7.61 m% to 7.05 m% and the olefin content in gasoline from 42.3 v% to 37.5 v%, resulting in an incremental profit amounting to 52.19 million RMB a year. This technology has further upgraded and developed the DCC technology which has been commanding a leading position among the industry peers.
文摘Deep Catalytic Cracking （DCC） developed by RIPP （Research Institute of Petroleum Processing）, SINOPEC is a catalytic conversion process derived from the FCC process using heavy feedstocks for producing raw materials used in the petrochemical industry, such as ethylene and propylene. It was firstly demonstrated in 1990 and has been commercialized since 1994. Up to now, seven units have been put into production inside and outside China, and many other DCC units are under construction and in the phase of design now. Products ofpropylene and ethylene from DCCU have been used as feedstock for manufacturing high quality polypropylene, polyethylene and acrylonitrile. Many innovations on technological process, and preparation of catalytic materials used in the DCC process will be presented in this paper.
文摘RIPP has developed the third generation novel DCC catalysts aimed at increasing the propylene yield, named as the MMC series catalysts. This catalyst is of the MFI structure composed of the ZSP zeolite as the main active component, which has higher capability for producing low-carbon olefins, in particular the propylene. The commercial application of this catalyst at SINOPEC Anqing Petrochemical Company has revealed that the adoption of the MMC-2 catalyst has resulted in a 1.6-4.0 percentages increase in propylene yield under basically similar conditions in terms of the feedstock property and process operating regime coupled with reduction in gasoline olefin COntent and increase in aromatic content to improve the gasoline quality.
