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Lumping kinetics method for random function preprocessing simplex post-processing distribution inheritance

A random function and kinetic equation technology, which is applied in the research field of distillate oil hydrocracking process, can solve the problems of increased calculation time overhead, and achieve the effects of reducing errors, enhancing flexibility, and high coincidence

Inactive Publication Date: 2017-05-24
CHINA PETROLEUM & CHEM CORP +1
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  • Application Information

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Problems solved by technology

Rapid increase in computing storage overhead and computing time overhead

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  • Lumping kinetics method for random function preprocessing simplex post-processing distribution inheritance
  • Lumping kinetics method for random function preprocessing simplex post-processing distribution inheritance
  • Lumping kinetics method for random function preprocessing simplex post-processing distribution inheritance

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Embodiment Construction

[0066] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0067] The lumped kinetic method is just one of the relatively effective and feasible mathematical models applied to the hydrocracking or catalytic cracking process. The basic idea of ​​this method is to simplify and divide various oil products involved in the reaction into specific virtual lumped components according to a certain principle, and the division method can be divided according to the boiling point and boiling range of the distillate oil. It can also be divided according to the components of distillate oils (especially four components are more common). The division scheme itself has greater flexibility. Then establish the virtual reaction network of the lumped c...

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Abstract

The invention discloses a lumping kinetics method for random function preprocessing simplex post-processing distribution inheritance. Through a random choice mechanism, distillate oil mass fraction data and a lumping kinetics equation are obtained, and the matrix metadata of a hydrogenation reaction rate matrix is determined; then, through a random function preprocessing method, a genetic algorithm and a simplex algorithm in sequence, the determined matrix metadata is subjected to preprocessing, genetic algorithm processing and high-precision finishing processing to obtain final optimized matrix metadata; and according to the final optimized matrix metadata, a model of the lumping kinetics equation is determined. By use of the method, a plurality of lumping components are divided, the flexibility requirement of industrial production product cutting is met, and the distribution curve, which is calculated through the lumping kinetics model, of the distillate oil mass fraction data has a high matching degree with an experiment result. While an error between distillate oil cutting results which adopt different cutting schemes and a calculation result is reduced, model operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of distillate oil hydrocracking process research, in particular to a random function pretreatment simplex type posttreatment distribution genetic lumped dynamics method and system. Background technique [0002] One of the important tasks of the petrochemical industry is to process low-quality, high-impurity, high-dry-point macromolecular crude oil or its pretreated fractions through hydrogenation to produce high-quality, low-impurity, high-value-added Raw materials for various distillate oil products and downstream petrochemical products. Due to the huge fluctuations in the world crude oil price, refined oil price, and the price and demand of downstream petroleum and petrochemical products, oil refining companies must be able to adjust the process parameters of the petroleum refining process in real time and effectively to adapt to crude oil, refined oil and Prices of downstream petrochemical products and c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/12
CPCG06F30/367G06N3/126
Inventor 王阔
Owner CHINA PETROLEUM & CHEM CORP