Research On PIMS Supporting Intelligent Production Of Petroleum Refining And Chemical Equipment

The market of the petrochemical industry is changing rapidly.With the fluctuation of international crude oil and the change of domestic product demand,the benefits of refineries fluctuate accordingly.Enterprises are faced with huge risks and challenges,and the profitability of enterprises has declined.PIMS can aim at benefit maximization,timely provide production and operation plan optimization plan,improve enterprise efficiency,and do a good job in production and operation plan optimization,which is of great significance for petroleum refining and chemical enterprises to improve profitability and market competitiveness.This paper studies the theory of linear programming technology,pendulum cutting technology,distributed recursive technology,Delta-Base technology and MIP technology involved in PIMS,builds the refinery’s own model in combination with the actual situation of the refinery production equipment,and mainly introduces the normal reduction technology.Construction of pressure distillation and crude oil cutting models,catalytic cracking unit Delta-Base data model and carbon emission model.The reaction mechanism model of the catalytic cracking unit was built,and the influence of different operating parameters such as reaction temperature,raw material preheating temperature,and gasoline cutting temperature on the product yield and product properties were studied through the mechanism model.The influence of different feed properties such as nitrogen and metal on the product yield and product properties.Through the mechanism model research,it is found that the proportion of raw materials has the greatest impact on the product yield and product properties.Because there are many types of catalytic raw materials,it is necessary to accurately describe the reaction data of the device.Information,it is proposed to divide the proportion of raw materials into three intervals,set up three corresponding Base schemes,build a model structure of 3 Bases + 1Delta,and determine the reaction temperature,preheating temperature,and gasoline end boiling point as operating parameters The Delta variable,the specific gravity of the feed,sulfur content,basic nitrogen,residual carbon,and metals are the Delta variables of the properties.The cost of crude oil accounts for more than 90% of the cost of refining.Processing different types of crude oil will bring different economic benefits.Optimizing the procurement of crude oil is an important measure to improve the efficiency of refineries.With the liberalization of imported crude oil quotas,refineries can independently purchase crude oil in the international market.There are many complementary crude oils in the market.To solve the problem of how to optimize the procurement of three types of crude oil on the premise of meeting the requirements of the equipment and meeting the product standards,using the built PIMS model to successfully calculate the blending ratio of the three types of crude oil,and realize the mode of purchasing the three types of crude oil after blending overseas.The benefit of a single batch of140,000 tons of crude oil has increased by 2.71 million yuan,and a refinery has been developed.A new crude oil procurement model.Complex market changes are both opportunities and challenges.The faster the adjustment of the production and operation plan of the enterprise,the more the enterprise’s benefits will be improved.Under the changing market environment of sharp fluctuations in international crude oil and gasoline and diesel prices,the PIMS model is used to optimize the production and operation plan to ensure the best corporate benefits.Among them,in March 2022,the refinery benefit was increased by 30.13 million yuan through the optimization and adjustment of production load.In October 2022,through optimization and adjustment,the diesel output will be increased by 10,400 tons,and the benefit will be increased by 11.1 million yuan.Through the application of PIMS,the enterprise benefits have been effectively improved.The petrochemical industry is a key carbon emission industry,which will be gradually included in the national carbon market.Based on the carbon emission policies that refineries will face in the future,the calculation of carbon emission indicators will be integrated into PIMS,and the integration of carbon emission requirements and production and operation plan optimization will be realized.When the carbon emission quota is limited,PIMS can quickly calculate the processing load adjustment sequence plan of the unit,which can meet the requirements of the total carbon emission while taking into account the maximum benefit,ensure the high-quality development of the refinery,and expand the application scope of PIMS.