Demarcating And Optimization Of The 40×10~4 T/a CCR Unit In Sudan Refinery

The paper aims at discussing the process and development of catalytic reforming both in China and abroad while emphasizing on the significance of the catalytic reforming process when producing clean fuels.It also introduces the designing background and the working pattern of the 400,000 tons/year CCR unit of Sudan Refinery.The ultra low pressure continuous reforming reaction technology of Axens',France and the third-generation continuous catalyst regeneration technology have improved all products.As a result,the poor naphtha feed from DCU can be processed for the first time,which provides more experiences for future construction and designing of the unit in relevant fields.The CCR unit operates stably since its first commissioning.The commissioning also provides comprehensive calibration for the performance of catalyst and the operation as well as the rationality of the unit.The calibration data helps to set parameters and eliminate bottlenecks.Simultaneously,it identifies the energy consumption level within Chinese refinery and provides a future direction for energy-saving and technical progress.During the first year of the 400,000 tons/year CCR unit,some faults had been detected,such as low design value of octane gasoline product,salt crystallization problems and gas dechlorination.With the help of domestic research institutions and production practices,we insist on practicing,evaluating and technical innovation while optimizing parameters and management of production and equipment,through which all problems mentioned above had been solved.Thanks to efforts of all staff,the unit has successfully run 1319 days from April,2011 to October,2014,when the national average record is 1095 days.