The development history and major technological innovations of the ultra-low pressure naphtha reforming technology with continuous catalyst regeneration in China were introduced.This technology had been adopted by the...The development history and major technological innovations of the ultra-low pressure naphtha reforming technology with continuous catalyst regeneration in China were introduced.This technology had been adopted by the 1.0 Mt/a CCR unit at the Guangzhou Company.The appropriate catalyst was selected to meet the demand of the unit capacity,the feedstock,and the product slate.The design parameters,including the reaction pressure,the octane number of C5+liquid product,the reaction temperature,the space velocity,the hydrogen/oil molar ratio,and the catalyst circulating rate,were chosen based on the study of process conditions and parameters.The commercial test results showed that the research octane number of C5+product reached 104 when the capacity of the CCR unit was 100%and 115%of the design value.The other technical targets attained or exceeded the expected value.展开更多
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
A new continuous catalytic reforming model was configured by using a molecule-based reactor module. Themodel was based on the Sinopec Research Institute of Petroleum Processing Co., Ltd. continuous catalytic reformer ...A new continuous catalytic reforming model was configured by using a molecule-based reactor module. Themodel was based on the Sinopec Research Institute of Petroleum Processing Co., Ltd. continuous catalytic reformer fullmodel, and was reduced to a size of 157 naphtha molecules (C1−C12) that underwent 764 reactions. The new model inheritedthe advantages of the original model, and had better solving performance and flexibility owing to support by the AspenHYSYS environment. Typical commercial plant data were selected for model validation, which showed advantages in theaccuracy of detailed predictions and the range of its application. In addition, the solving time was reduced from minutes toseconds. Therefore, the simplified model proved to be feasible for industrial application.展开更多
By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing...By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing its specific surface area has been successfully developed. This catalyst PS-Ⅶ was evaluated in a 100-mL pilot test unit. Study results showed that under the same reaction conditions the newly developed catalyst PS-Ⅶ achieved a 26% reduction in coke deposition as compared to the existing high-platinum CCR catalyst. This catalyst upon its first commercial application in a 1.39 Mt/a CCR unit had exhibited good anti-attrition performance and good stability in terms of its specific surface area. Compared to the original CCR catalyst this PS-Ⅶ type catalyst could reduce the coke deposition by 27.32% when operating on feedstock with low potential aromatic content, along with apparent increase in C6^＋ liquid yield, hydrogen yield and aromatics yield, which could grapple with the problem associated with the catalyst regeneration constraints after CCR capacity expansion to ensure the longcycle high-load operation of the CCR unit.展开更多
基金Financial support form the SINOPEC Research Program(No.107025)
文摘The development history and major technological innovations of the ultra-low pressure naphtha reforming technology with continuous catalyst regeneration in China were introduced.This technology had been adopted by the 1.0 Mt/a CCR unit at the Guangzhou Company.The appropriate catalyst was selected to meet the demand of the unit capacity,the feedstock,and the product slate.The design parameters,including the reaction pressure,the octane number of C5+liquid product,the reaction temperature,the space velocity,the hydrogen/oil molar ratio,and the catalyst circulating rate,were chosen based on the study of process conditions and parameters.The commercial test results showed that the research octane number of C5+product reached 104 when the capacity of the CCR unit was 100%and 115%of the design value.The other technical targets attained or exceeded the expected value.
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.
基金The authors acknowledge collaboration with and support from AspenTech via the National Key R&D Program of China(2021YFA1501201).
文摘A new continuous catalytic reforming model was configured by using a molecule-based reactor module. Themodel was based on the Sinopec Research Institute of Petroleum Processing Co., Ltd. continuous catalytic reformer fullmodel, and was reduced to a size of 157 naphtha molecules (C1−C12) that underwent 764 reactions. The new model inheritedthe advantages of the original model, and had better solving performance and flexibility owing to support by the AspenHYSYS environment. Typical commercial plant data were selected for model validation, which showed advantages in theaccuracy of detailed predictions and the range of its application. In addition, the solving time was reduced from minutes toseconds. Therefore, the simplified model proved to be feasible for industrial application.
文摘By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing its specific surface area has been successfully developed. This catalyst PS-Ⅶ was evaluated in a 100-mL pilot test unit. Study results showed that under the same reaction conditions the newly developed catalyst PS-Ⅶ achieved a 26% reduction in coke deposition as compared to the existing high-platinum CCR catalyst. This catalyst upon its first commercial application in a 1.39 Mt/a CCR unit had exhibited good anti-attrition performance and good stability in terms of its specific surface area. Compared to the original CCR catalyst this PS-Ⅶ type catalyst could reduce the coke deposition by 27.32% when operating on feedstock with low potential aromatic content, along with apparent increase in C6^＋ liquid yield, hydrogen yield and aromatics yield, which could grapple with the problem associated with the catalyst regeneration constraints after CCR capacity expansion to ensure the longcycle high-load operation of the CCR unit.
