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With the increasingly large-scale, centralized and continuous production processes in the petrochemical industry, higher demands are placed on the production process. How to achieve the optimal operation of the production process and maximize the production efficiency, this issue that needs to be solved in the petrochemical industry has been included in the national "863" and national science and technology support plan.
The large-scale ethylene plant optimization project co-developed by East China University of Science and Technology and Yangzi Petrochemical Co., Ltd. starts from the demand for high-quality production, energy saving and consumption reduction of the device, and through integrated innovation, digestion and absorption, and re-innovation, research and optimization of pyrolysis process and simulation of reaction process have been developed. The key technologies of 11 subprojects, such as optimization and 100,000-ton cracking furnace temperature control and advanced load optimization, applied for six national invention patents and a series of proprietary technologies related to the optimal operation of the ethylene production process. The project team also extended these technologies to the optimization of other complex production processes through theoretical and applied research.
Among them, the intelligent control method for ethylene cracking furnace of the 9th China Patent Invention Excellence Award, starting from the real-time application of the production equipment, the developed control system realizes the average furnace tube outlet temperature of the cracking furnace, the outlet temperature of each group of tubes and production The advanced control of the load makes the average outlet temperature fluctuation of the furnace tube within ±1°C. After the cracking furnace is put into operation, all indicators are in the best process state. This achievement is greatly improved and innovated compared with some control technologies currently being promoted by foreign engineering companies to China. The automatic control level of domestic cracking furnaces has reached the advanced level of similar foreign devices at present and has formed China’s independent intellectual property rights. Patented technology, an annual profit of 30 million yuan.
The large-scale ethylene plant optimization operation project has been continuously applied to the Yangzi Petrochemical ethylene plant since March 2002. It has effectively solved the bottleneck problem of a number of control devices with full-load, high-efficiency and safe operation, making the main technical and economic indicators of production equipment reach or exceed. The international advanced level of similar devices.
These days, Sinopec Yangzi Petrochemical Company can be said to have a happy event: First, the newly-developed ethylene cracker has been successfully put into use, followed by their joint research and development with East China University of Science and Technology. Awards. Since the application of this project in the ethylene plant of Yangzi Petrochemical, it has accumulatively increased profits by several hundred million yuan. Among them, advanced control and optimization technologies for cracking furnaces, ethylene and propylene distillation towers have been widely applied in Sinopec ethylene plants, and have promoted technological advancement in China's ethylene and even the entire petrochemical industry.
July 31, 2024