A method, device and storage medium for optimizing light oil yield of catalytic cracking unit

Abstract

The invention discloses a method for optimizing the light oil yield of a catalytic cracking unit, comprising the steps of: obtaining historical data of parameters participating in the optimization of catalytic cracking yield, and actual yield values ​​corresponding to the parameters, and analyzing the obtained The historical data of the above parameters and the actual value of the yield are carried out outlier removal and normalization operations to form sample data; the GRNN model is trained using the sample data to obtain a GRNN model that predicts the yield according to the parameters; a genetic algorithm is used Optimizing the model prediction results of the parameter prediction yield to optimize the light oil yield of the catalytic cracking unit. In this way, the method for optimizing the light oil yield of the catalytic cracking unit of the present invention can greatly increase the light oil yield, and can accurately describe the reaction process from the mechanism, and improve the accuracy of data.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method, device and storage medium for optimizing the light oil yield of a catalytic cracking unit. Background technique [0002] Catalytic cracking (FCC) is a process in which heavy oil undergoes a cracking reaction under the action of heat and a catalyst, and is transformed into cracked gas, gasoline and diesel. Catalytic cracking occupies an important position in my country's oil refining industry. Compared with thermal cracking, its light oil yield is higher, gasoline octane number is higher, diesel oil stability is better, and liquefied petroleum gas rich in olefins is produced as a by-product. An important means of economic benefits, and for the catalytic cracking unit itself, the yield of light oil is its most important economic indicator. The core of the accurate yield model lies in the accurate reaction mechanism kinetics, but the catalytic cracking process involve...

AI Technical Summary

Problems solved by technology

However, the centralized dynamics method requires high data accuracy, and the current data accuracy of enterprises often cannot meet the accuracy requirements of this method.

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