Multi-objective optimization method and device for catalytic cracking process

Abstract

The invention provides a multi-objective optimization method and device for a catalytic cracking process, and a computer readable storage medium. The multi-objective optimization method comprises the following steps: determining a plurality of optimization objectives, a plurality of process decision variables corresponding to the plurality of optimization objectives, and a constraint range of each process decision variable; determining an objective function according to the plurality of optimization objectives and the plurality of process decision variables; an SPEA2 algorithm of an offspring evolution process is improved through a path-based regeneration operator, and the value of each process decision variable is adjusted within the constraint range so as to determine operation data of the target function about each process decision variable; determining an optimization target value of each optimization target according to each operation data; and determining guidance values of a plurality of process decision variables corresponding to the plurality of optimization targets according to the optimal optimization target value solution set.

Description

technical field [0001] The invention belongs to the field of petrochemical technology, and in particular relates to a multi-objective optimization method for a catalytic cracking process, a multi-objective optimization device for a catalytic cracking process, and a computer-readable storage medium. Background technique [0002] The oil refining industry is a pillar industry in my country, among which the catalytic cracking process is one of the important means of lightening heavy oil in the oil refining industry. Gasoline, diesel and other catalytic cracking products obtained through the catalytic cracking (FCC) process are important fuel sources for transportation, and other products produced through the catalytic cracking process are also the main raw materials for the chemical industry. For oil refining enterprises, how to give full play to the capacity of refining units, maximize economic benefits and reduce environmental pollution is the top priority related to the nati...

AI Technical Summary

Problems solved by technology

However, the existing catalytic cracking optimization technologies in the field of petrochemical industry mainly focus on single-objective optimization operations, which cannot meet the actual needs of multi-objective optimization.

Even if there are multi-objective optimization related technologies in other technical fields such as information science and technology, the phenomenon of ignoring the useful information generated in the process of individual evolution is common, so a large number of iterations are required, and there are problems such as long optimization time, poor quality of optimization results, and optimization problems. Defects with unstable results

Images