Research On Modeling Optimization Of Efficient Utilization Of Ethylene Industry Resources

Energy provides the impetus for the development and progress of the world,and all aspects of human food,clothing,housing and transportation are inseparable from energy support.As the countries of the contemporary world are striving to develop their own economies,the problems between energy and the environment are increasingly concerned by human beings.Saving resources and protecting the environment have become national development strategies.The ethylene industry is one of the systematic projects with large energy consumption and serious environmental pollution in the complex process industry.Therefore,reasonable resource allocation and environmental benefit constraints for the ethylene industry are urgent problems to be solved.Finding a resource allocation method that satisfies the output of the product and guarantees the minimum disturbance of the environment is the key point to solve the energy saving and emission reduction targets faced in the ethylene industry.This is also an important direction for chemical engineering and technical research.The process graph theory has been widely used to solve process network synthesis problems in chemical processes,and has since evolved to deal with supply chain planning,reaction path identification,and carbon management planning.These applications are mainly focused on process combinations.The construction form of the model is also relatively simple.Therefore,based on the advantages of P-graph theory supporting logical constraints,graphical modeling and perfect algorithm,the P-graph model and mathematical model based on carbon emission constraints are constructed.In the model,the data relationship was constructed by constructing ethylene yield coefficient,ethylene carbon emission coefficient and raw material,product,carbon emission constraints and other conditions during ethylene cracking.By adding P-graph virtual nodes,resource reorganization and scheduling allocation based on carbon emission constraints in the ethylene industry is realized,and new ideas and methods for improving energy efficiency and energy saving in system engineering of other complex process industries are provided.It is worth mentioning that solving the model can obtain solutions such as optimal solutions and suboptimal solutions.These feasible structural solutions satisfy the constraints,and the decision makers can select the most favorable solution according to the actual production conditions.The method of this paper is beneficial to the rational use of resources and the purpose of environmental protection in the ethylene industry.The experimental data of this subject are based on the actual production data of China's classic ethylene cracking enterprises.Through the analysis of known cases,the correctness and effectiveness of the P-graph model based on carbon emission constraints are verified,and the actual problems of the ethylene industry are solved.Analytical research has been carried out to achieve a reduction in carbon emissions.At the same time,it provides suggestions for factories or enterprises to solve actual production problems,which is conducive to the factory to find the areas that need improvement and improvement in actual production,and to maximize the economic and environmental benefits of production.