CN115472235A - Petrochemical process flow simulation method and design optimization method - Google Patents
Petrochemical process flow simulation method and design optimization method Download PDFInfo
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- CN115472235A CN115472235A CN202211139635.0A CN202211139635A CN115472235A CN 115472235 A CN115472235 A CN 115472235A CN 202211139635 A CN202211139635 A CN 202211139635A CN 115472235 A CN115472235 A CN 115472235A
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/10—Analysis or design of chemical reactions, syntheses or processes
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/80—Data visualisation
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/90—Programming languages; Computing architectures; Database systems; Data warehousing
Abstract
The invention discloses a petrochemical engineering process flow simulation method, which comprises the following steps: s1, obtaining material information of reactants and products; s2, calling a physical property database to analyze the material information and judging the reaction type of the material information; s3, searching the modeled process flow by inquiring a thermodynamic method library and a chemical unit process library; the method comprises the steps of firstly establishing a database of the process flow, inputting material information of reactants and products by a user, judging the reaction type by using the material database, then calculating the state and thermodynamic equation of the reaction process by using a thermodynamic method library, and generating an analog simulation process flow by synthesizing a chemical unit process library, so that the method can rapidly build a model, and obtaining simulation data by adjusting control variables.
Description
Technical Field
The invention relates to the technical field of petrochemical engineering process flow simulation methods, in particular to a petrochemical engineering process flow simulation method.
Background
Because of the particularity of the chemical industry, such as flammability, explosiveness, toxicity, harmfulness, high temperature and high pressure, the chemical engineering device needs to be simulated during the design process. The process simulation is an important content and basis of process system engineering, and takes process flow level information as input, and uses computer to assist and make analysis useful for process flow development, design and operation, such as energy and material balance calculation, equipment size calculation, cost accounting and economic evaluation, etc. the process flow simulation system refers to computer-aided process design software, and said software can receive input information related to chemical process flow and make system analysis calculation useful for process development, design or operation, and the users of existent most process flow simulation systems are required to possess enough professional related knowledge, so that it is very unfriendly for those trying to make study by means of simulation and make early-stage information collection, so that it has need of simple and convenient process flow simulation method for learning and early-stage information collection.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the petrochemical process flow simulation method provided by the invention has the advantages of simplicity in operation, high safety coefficient, high reliability and the like, and solves the problem that the reliable learning simulation operation cannot be provided for learners due to overhigh requirements of the existing process flow simulation system on users.
(II) technical scheme
In order to achieve the purpose of reducing the requirements of the existing process flow simulation system on users and providing reliable learning simulation for learners, the invention provides the following technical scheme: the petrochemical engineering process flow simulation method comprises the following steps:
s1, obtaining material information of reactants and products;
s2, calling a physical property database to analyze the material information and judging the reaction type of the material information;
s3, searching the modeled process flow by inquiring a thermodynamic method library and a chemical unit process library;
s4, calling a common module library to generate process flow information and material information, outputting the process flow information and the material information to an output platform, and selecting one process flow;
s5, generating a corresponding process flow according to the selected process flow to generate a corresponding simulation process flow chart;
and S6, entering an information simulation program, and adjusting corresponding control variables to obtain corresponding simulation data.
Preferably, in the step S1, the material information includes a material code, a material type, a material classification, and a material name, and the retrieval time of the system is reduced by retrieving different classification information of the material.
Preferably, in step S2, the physical property database includes material molecular weight, density, critical pressure, critical temperature, standard boiling point, and eccentricity factor, and the reaction type includes synthesis reaction, neutralization reaction, polymerization reaction, hydrolysis reaction, and esterification reaction.
Preferably, in the step S3, the thermodynamic method library includes a state equation, a correlation for calculating a liquid phase activity coefficient, a correlation for calculating enthalpy and free energy, and the like, and mainly improves data calculation of material balance and heat balance in the process flow.
Preferably, in step S5, the simulation process flow diagram is created by building a common module library based on commercial process simulation software, and a general database is used to facilitate analysis of the simulation process flow, and the commercial process simulation software is Aspen Plus, which has strong database information and can provide networking information retrieval.
Preferably, in step S6, the information simulation program is an Aspen Plus visual operation platform, the visual platform is convenient for a user to operate and control each control variable in the simulation process flow, and the simulation data includes material molecular weight, density, critical pressure, critical temperature, standard boiling point, eccentricity factor, reaction condition, reaction rate, reaction equilibrium data, and the like in the reaction product.
The petrochemical process flow simulation design optimization method comprises the following steps:
s1, providing a networking information base, and searching reactants according to a product and a reaction type;
s2, calling a convergence method library and an economic evaluation library to generate corresponding price lists, and outputting the price lists to an output platform;
and S3, providing a matched operation table for performing module operation of the chemical units.
Preferably, in the step S2, the method convergence library includes accelerated iterative computation convergence and other general mathematical methods, and the economic evaluation library is searched and modeled by the Aspen Plus networked information base to perform cost estimation and economic evaluation, thereby improving the practicability of the process flow simulation method.
(III) advantageous effects
Compared with the prior art, the petrochemical process flow simulation method and the design optimization method provided by the invention have the following beneficial effects:
1. the petrochemical engineering process flow simulation method and the design optimization method firstly establish a process flow database, a practical person inputs material information of reactants and products, the material database is used for judging reaction types, then a thermodynamic method library is used for carrying out state and thermodynamic equation calculation on the reaction process, and a chemical unit process library is synthesized to generate a simulation process flow, so that the petrochemical engineering process flow simulation method can be rapidly modeled, and simulation data is obtained by adjusting control variables.
2. According to the petrochemical process flow simulation method and the design optimization method, the convergence method library and the economic evaluation library are improved to calculate the simulation cost in the simulation process flow, so that the practicability of the process flow simulation method is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a petrochemical engineering process flow simulation method, which comprises the following steps: s1, material information of reactants and products is obtained, the material information comprises material codes, material types, material classifications and material names, and retrieval is carried out on different classification information of materials, so that retrieval time of a system is reduced;
s2, a physical property database is called to analyze material information and judge the reaction type of the material information, wherein the physical property database comprises material molecular weight, density, critical pressure, critical temperature, standard boiling point, eccentric factor and the like, comprehensive judgment is carried out through different material information, and the reaction type comprises synthesis reaction, neutralization reaction, polymerization reaction, hydrolysis reaction and esterification reaction;
s3, searching the modeled process flow by inquiring a thermodynamic method library and a chemical unit process library, wherein the thermodynamic method library comprises a state equation, a correlation for calculating a liquid phase activity coefficient, a correlation for calculating enthalpy and free energy and the like, and mainly improves data calculation of material balance heat balance in the process flow;
s4, calling a common module library to generate process flow information and material information, outputting the process flow information and the material information to an output platform, and selecting one process flow;
s5, generating a corresponding process flow according to the selected process flow to generate a corresponding simulation process flow diagram, wherein the simulation process flow diagram is established by a common module library based on commercial process simulation software, a general database is used to facilitate analysis of the simulation process flow, the commercial process simulation software is Aspen Plus, the database has strong information, and networking information retrieval can be provided;
and S6, entering an information simulation program, wherein the information simulation program is an Aspen Plus visual operation platform, the visual platform is convenient for a user to operate and control each control variable in the simulation process flow, and adjust the corresponding control variable to obtain corresponding simulation data, and the simulation data comprises the molecular weight, the density, the critical pressure, the critical temperature, the standard boiling point, the eccentric factor, the reaction condition, the reaction rate, the reaction balance data and the like of the material in the reaction product.
The petrochemical process flow simulation design optimization method comprises the following steps:
s1, providing a networking information base, and searching reactants according to a product and a reaction type to accelerate a modeling process of an analog simulation process flow;
s2, calling a convergence method library and an economic evaluation library to generate corresponding price lists, wherein the method convergence library comprises accelerated iterative computation convergence and other general mathematical methods, the economic evaluation library is searched and modeled by an Aspen Plus networking information base to carry out cost estimation and economic evaluation, the practicability of the simulation process flow method is improved, and the cost is output to an output platform;
and S3, providing a matched operation table for carrying out chemical unit module operation, so that practical personnel can simulate actual operation through the unit module.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The petrochemical engineering process flow simulation method is characterized by comprising the following steps: s1, obtaining material information of reactants and products;
s2, calling a physical property database to analyze the material information and judging the reaction type of the material information;
s3, searching the modeled process flow by inquiring a thermodynamic method library and a chemical unit process library;
s4, calling a common module library to generate process flow information and material information, outputting the process flow information and the material information to an output platform, and selecting one process flow;
s5, generating a corresponding process flow according to the selected process flow to generate a corresponding simulation process flow chart;
and S6, entering an information simulation program, and adjusting corresponding control variables to obtain corresponding simulation data.
2. The petrochemical process flow simulation method according to claim 1, wherein in step S1, the material information includes material code, material type, material classification, and material name.
3. The petrochemical process flow simulation method according to claim 1, wherein in step S2, the physical property database comprises material molecular weight, density, critical pressure, critical temperature, normal boiling point, and eccentricity factor, and the reaction types comprise synthesis reaction, neutralization reaction, polymerization reaction, hydrolysis reaction, and esterification reaction.
4. The petrochemical process flow simulation method according to claim 1, wherein in step S3, the thermodynamic method library comprises a state equation, a correlation for calculating liquid phase activity coefficient, a correlation for calculating enthalpy and free energy, and the like, and the chemical unit process library comprises rectification, heat exchange, flash distillation, fluid transportation, and the like, and various reaction modules.
5. The petrochemical process flow simulation method according to claim 1, wherein in step S5, the simulation process flow diagram is created based on a commercial process simulation software in a common module library, and the commercial process simulation software is Aspen Plus.
6. The petrochemical process flow simulation method according to claim 1, wherein in step S6, the information simulation program is an Aspen Plus visual operation platform, and the simulation data includes material molecular weight, density, critical pressure, critical temperature, standard boiling point, eccentricity factor, reaction conditions, reaction rate, reaction equilibrium data, and the like in the reaction product.
7. The petrochemical engineering process flow simulation design optimization method is characterized by comprising the following steps of:
s1, providing a networking information base, and searching reactants according to a product and a reaction type;
s2, calling a convergence method library and an economic evaluation library to generate corresponding price lists, and outputting the price lists to an output platform;
and S3, providing a matched operation table for performing module operation of the chemical unit.
8. The petrochemical process flow simulation design optimization method according to claim 7, wherein in the step S2, the method convergence library comprises accelerated iterative computation convergence and other general mathematical methods, and the economic evaluation library is searched and modeled by an Aspen Plus networked information base.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116245260A (en) * | 2023-05-12 | 2023-06-09 | 国网吉林省电力有限公司信息通信公司 | Optimization method for deploying 5G base station based on substation resources |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116245260A (en) * | 2023-05-12 | 2023-06-09 | 国网吉林省电力有限公司信息通信公司 | Optimization method for deploying 5G base station based on substation resources |
| CN116245260B (en) * | 2023-05-12 | 2023-08-08 | 国网吉林省电力有限公司信息通信公司 | Optimization method for deploying 5G base station based on substation resources |
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