Production control method for ethylene plant based on heuristic algorithm

A production control method and heuristic algorithm technology, applied in computing, special data processing applications, instruments, etc.

Inactive Publication Date: 2015-04-22
ZHEJIANG UNIV
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Problems solved by technology

[0010] Aiming at the deficiencies and defects of the existing ethylene plant scheduling optimization method, the present invention provides a heuristic algorithm-based ethylene plant production control method, which is used to solve the whole plant scheduling and optimization proposition of the ethylene plant and considers the microcosmic characteristics of the ethylene cracking unit Modeling and integrated production relationships of ethylene crackers and downstream production units

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  • Production control method for ethylene plant based on heuristic algorithm
  • Production control method for ethylene plant based on heuristic algorithm
  • Production control method for ethylene plant based on heuristic algorithm

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Embodiment Construction

[0069] The present invention will be further elaborated and illustrated below in conjunction with the accompanying drawings.

[0070] Such as figure 1 As shown, an ethylene plant scheduling optimization method based on a heuristic algorithm, which specifically includes the following steps:

[0071] (1) Divide the production system of the ethylene plant into raw material entry site, product delivery site, ethylene cracking unit and downstream production unit, and draw the corresponding production network topology diagram;

[0072] Firstly, the production system of the ethylene plant is divided into four components, namely: raw material incoming site, product outgoing site, ethylene cracking unit, and downstream production unit; at the same time, the type, ratio and physical property conditions of the raw material incoming site are determined ; To determine the product production site, it is necessary to clarify the type, yield and physical properties of the product; to determi...

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Abstract

The invention discloses a production control method for an ethylene plant based on a heuristic algorithm. The method includes the steps that a production network topological structure diagram of an ethylene plant production system is drawn; a plurality of sets of time allocation schemes and a plurality of sets of material allocation schemes of a parallel production cycle scheduling model of an ethylene cracking device and a continuous time production model of a downstream production device are established according to the production network topological structure diagram; a synchronization integration scheduling optimization model of the ethylene cracking device and the downstream production device is established according to the time allocation schemes and the material allocation schemes, a global optimization objective function and an optimal object of the synchronization integration scheduling optimization model are determined, the preset product demand quantity is used as a constraint condition, the heuristic algorithm is used for solving the global optimization objective function, and accordingly the optimal solution of the global optimization objective function is obtained to control the production process of the ethylene plant. A feasible solution is provided for the large-scale integrated optimization problem, and the method for solving the large-scale mixed integer nonlinear problem is provided.

Description

technical field [0001] The invention relates to the field of process industry system scheduling and optimization, in particular to a production control method of an ethylene plant based on a heuristic algorithm. Background technique [0002] In the petrochemical industry, the ethylene industry is a typical representative of the process industry, and ethylene is also one of the most important and widely used chemical products. The production capacity and output of a country's ethylene industry also directly reflect its industrial production capacity and comprehensive national strength. In recent years, with the growth of ethylene products and ethylene demand in various industries, people have also carried out a lot of research and practice on improving the production capacity of ethylene plants, among which the scheduling and optimization methods of production systems are the most prominent. [0003] Based on the background of refineries, Moro et al. proposed a nonlinear proc...

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Application Information

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IPC IPC(8): G06Q10/04G06F17/50
CPCG06Q10/04G06Q10/0631
Inventor 荣冈张鹏飞王子豪冯毅萍
Owner ZHEJIANG UNIV
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