This article makes an analysis on the major technical difficulties encountered in the process of revamping and expanding the capacity of the continuous catalytic reforming （CCR） unit from 600 kt/a to 800 kt/a at Tia...This article makes an analysis on the major technical difficulties encountered in the process of revamping and expanding the capacity of the continuous catalytic reforming （CCR） unit from 600 kt/a to 800 kt/a at Tianjin Petrochemical Company. The requirements for expanding the CCR unit capacity to 800 kt/a have been met through adopting the low carbon-make PS-Ⅵ catalyst, properly lowering the RONC of the reformate, and appropriately retrofitting the towers and furnaces while keeping the reaction system, the catalyst regeneration system and the recycle hydrogen compressor intact. The calibration results have revealed that the liquid yield of reformate products, the octane rating of reformate, the pure hydrogen yield, the aromatics yield and the overall conversion rate all have met the revamp design targets.展开更多
FCC units are playing an important role at refineries, in particular at Chinese refineries. To cope with the current demand for better economic benefits, environmental protection and product slate adjustment, a host o...FCC units are playing an important role at refineries, in particular at Chinese refineries. To cope with the current demand for better economic benefits, environmental protection and product slate adjustment, a host of FCC units need to be technically revamped. This article describes the practical processes, technologies and equipment to serve different revamp targets with analysis of two examples on revamp of commercial units.展开更多
PetroChina Karamai Petrochemical Branch Company by means of the technology licensed by UOP has revamped the cyclone system, feed nozzles, and main air distribution pipe of the 500 kt/a FCC unit, resulting in reduced c...PetroChina Karamai Petrochemical Branch Company by means of the technology licensed by UOP has revamped the cyclone system, feed nozzles, and main air distribution pipe of the 500 kt/a FCC unit, resulting in reduced coke formation and decreased dry gas yield in this unit. On the basis of the existing equipment, the throughput of this unit has been increased to 800 kt/a from 500 kt/a, with the total liquid yield reaching 88.66%. In the meantime, the revamp has reduced the pressure drop in the regenerator system with apparent energy conservation effects and significant economic benefits.展开更多
John Njoroge hopes to be an astro naut when he grows up. The seven- year old Kenyan boy said that flying must be an exciting job. His influenee comes from watching movies and playing video games.
文摘This article makes an analysis on the major technical difficulties encountered in the process of revamping and expanding the capacity of the continuous catalytic reforming （CCR） unit from 600 kt/a to 800 kt/a at Tianjin Petrochemical Company. The requirements for expanding the CCR unit capacity to 800 kt/a have been met through adopting the low carbon-make PS-Ⅵ catalyst, properly lowering the RONC of the reformate, and appropriately retrofitting the towers and furnaces while keeping the reaction system, the catalyst regeneration system and the recycle hydrogen compressor intact. The calibration results have revealed that the liquid yield of reformate products, the octane rating of reformate, the pure hydrogen yield, the aromatics yield and the overall conversion rate all have met the revamp design targets.
文摘FCC units are playing an important role at refineries, in particular at Chinese refineries. To cope with the current demand for better economic benefits, environmental protection and product slate adjustment, a host of FCC units need to be technically revamped. This article describes the practical processes, technologies and equipment to serve different revamp targets with analysis of two examples on revamp of commercial units.
文摘PetroChina Karamai Petrochemical Branch Company by means of the technology licensed by UOP has revamped the cyclone system, feed nozzles, and main air distribution pipe of the 500 kt/a FCC unit, resulting in reduced coke formation and decreased dry gas yield in this unit. On the basis of the existing equipment, the throughput of this unit has been increased to 800 kt/a from 500 kt/a, with the total liquid yield reaching 88.66%. In the meantime, the revamp has reduced the pressure drop in the regenerator system with apparent energy conservation effects and significant economic benefits.
文摘John Njoroge hopes to be an astro naut when he grows up. The seven- year old Kenyan boy said that flying must be an exciting job. His influenee comes from watching movies and playing video games.
