Memory, refining process full-flow simulation method, device and equipment

Abstract

The invention discloses a memory, a refining process full-process simulation method, device and equipment, and the method comprises the steps: obtaining a raw material nuclear magnetic spectrum of a raw material oil product; generating raw material physical property data corresponding to the raw material oil product; respectively generating a mass transfer-reaction equation corresponding to each device according to the device type and the process parameter of each device in the refining process; taking the nuclear magnetic spectrum of the raw material as a feature vector of oil product properties, taking the feature vector and the mass transfer-reaction equation of each device as input, and generating a simulation result in a nuclear magnetic spectrum form through a mass transfer-reaction solver; carrying out physical property calculation according to the simulation result, and analyzing the simulation result in the nuclear magnetic spectrum form into product physical property data; by means of the method, the link of error introduction can be effectively reduced, and then the accuracy of flow simulation of the refining process can be effectively improved.

Description

technical field [0001] The invention relates to the field of chemical production, in particular to a method, device and equipment for simulating the whole process of storage and refining process. Background technique [0002] In the field of oil refining and chemical technology, the process simulation method is the theoretical basis to realize the application of process design, device optimization selection, production optimization and so on. [0003] Existing process simulation software adopts a unified architecture model, that is, physical property package-PFD modeling-iterative calculation. The physical property package is the basis of process simulation software. Existing software uses physical property equations based on pure components. PR equations are usually used in the calculation of refining processes, and the molar composition is used as the calculation basis. In each calculation process of process simulation, the components of the physical property package need...

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Problems solved by technology

However, for the refining process, the complex oil hydrocarbon mixture cannot be divided by pure components, and it is also difficult to determine the molecular weight to calculate the molar composition, and the error is large when switching the molar composition

[0004] The inventor found through research that in the prior art refining and chemical process simulation scheme, in order to keep the data of the oil product stream in the actual production calibration, detection and online analysis in the industrial device consistent with the physical property package in the process simulation software, It is necessary to convert the actual detected data into a virtual narrow fraction physical property package component, which will introduce the first error; then, it is also necessary to fit the narrow fraction physical property package to other properties according to the empirical formula of the simulation system, and then introduce the The second error; then, because the empirical reaction kinetic model that ignores the influence of mass transfer factors is used for calculation in the process simulation environment, the third error will be introduced; finally, if the calculated results are to be applied to industrial devices , it is necessary to reconvert the process simulation software and logistics parameters in the system into macroscopic and continuous production analysis data, so the fourth error will also be introduced

[0005] It can be seen from the above that multiple errors have been introduced in the existing refining and chemical process simulation scheme, so the accuracy of the results is poor, which in turn will lead to poor results when used for process optimization.

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