In this article,the FCC diesel fuel is chemically treated with GZ reagent.The existent gum,insolubles after oxidation,and iodine munber are greatly reduced after chermical treatment.This method has a good effect and i...In this article,the FCC diesel fuel is chemically treated with GZ reagent.The existent gum,insolubles after oxidation,and iodine munber are greatly reduced after chermical treatment.This method has a good effect and is simple.This method is characterized by high recovery rate of fuel(>99.7?and low cost.The property of the mixture of chemically treated diesel fuel with straight-run diesel fuel can meet the requirements of national standard GB252-2000.The color and oxidation stability of the mixed fuel after having been stored for three months were still lower than the values specified in the national standard.展开更多
This article refers to the commercial application assessment of the novel S-RHT catalysts.The application outcome has shown that the catalysts loading was reduced with its performance kept at the original level at the...This article refers to the commercial application assessment of the novel S-RHT catalysts.The application outcome has shown that the catalysts loading was reduced with its performance kept at the original level at the initial and middle stages of operation. The performance of catalysts at the end of operation was analyzed, and factors affecting the performance of the novel catalysts at the end of run were identified to facilitate further improvement of the said catalysts.展开更多
The 40kt/a sulfur recovery unit for tail gas treating applying the reduction-absorption-recycling (RAR) technology is aimed at regeneration of the rich amine solution and recovery of sulfur to operate in tandem with t...The 40kt/a sulfur recovery unit for tail gas treating applying the reduction-absorption-recycling (RAR) technology is aimed at regeneration of the rich amine solution and recovery of sulfur to operate in tandem with the 1.2Mt/a diesel hydrofining unit. The process unit calibration data have revealed that the recovery of total sulfur reaches 99.86%, which is 6.65 percentage points higher than that before application of the RAR technology. The SO2 content in vented tail gas is 0.27 t/d, which is much less than the latest emission standard prescribed by the State. The factors that can affect the unit operation have been analyzed and corresponding measures have been suggested including the necessity to improve the control over the reaction temperature in the tail gas hydrogenation unit.展开更多
文摘In this article,the FCC diesel fuel is chemically treated with GZ reagent.The existent gum,insolubles after oxidation,and iodine munber are greatly reduced after chermical treatment.This method has a good effect and is simple.This method is characterized by high recovery rate of fuel(>99.7?and low cost.The property of the mixture of chemically treated diesel fuel with straight-run diesel fuel can meet the requirements of national standard GB252-2000.The color and oxidation stability of the mixed fuel after having been stored for three months were still lower than the values specified in the national standard.
文摘This article refers to the commercial application assessment of the novel S-RHT catalysts.The application outcome has shown that the catalysts loading was reduced with its performance kept at the original level at the initial and middle stages of operation. The performance of catalysts at the end of operation was analyzed, and factors affecting the performance of the novel catalysts at the end of run were identified to facilitate further improvement of the said catalysts.
文摘The 40kt/a sulfur recovery unit for tail gas treating applying the reduction-absorption-recycling (RAR) technology is aimed at regeneration of the rich amine solution and recovery of sulfur to operate in tandem with the 1.2Mt/a diesel hydrofining unit. The process unit calibration data have revealed that the recovery of total sulfur reaches 99.86%, which is 6.65 percentage points higher than that before application of the RAR technology. The SO2 content in vented tail gas is 0.27 t/d, which is much less than the latest emission standard prescribed by the State. The factors that can affect the unit operation have been analyzed and corresponding measures have been suggested including the necessity to improve the control over the reaction temperature in the tail gas hydrogenation unit.
