Petroleum Fraction Composition Estimation Method
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Solution Overview
Problem
Current methods for estimating crude oil properties from limited analytical data are complex and require large datasets, making them impractical for use in oil refining processes due to the need for extensive and expensive measurements.
Innovation Solution
A method that reduces the number of input parameters required for the reaction model by using rapid and affordable measurements, allowing for precise representation in narrow sections for mixing and fractionation operations, and wide sections for conversion operations, with a distribution function linking these representations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a reference model with large dataset and complex algorithm is used to estimate crude oil composition, then measurement precision is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent extracts only the essential parameters needed for composition estimation from the complex reference model, eliminating unnecessary complexity while retaining accuracy. The method identifies and uses only the critical input parameters from the large dataset, applying the extraction principle to simplify the system.
Solution Approach 2:
The patent replaces expensive, complex measurement systems with simpler, more affordable measurement techniques. The method uses readily available input parameters that can be obtained through less costly means, making the system more accessible and easier to operate.
2Measurement precision
If extensive measurements and large datasets are used to obtain satisfactory precision, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent extracts only the essential parameters needed for accurate composition estimation, eliminating the need for extensive measurements. The method identifies and uses only the critical input parameters, making the operation simpler while maintaining precision.
Solution Approach 2:
The patent applies partial action by using only the necessary subset of parameters rather than the complete large dataset. This selective approach achieves satisfactory precision without requiring extensive measurements, thereby improving ease of operation.
3Measurement precision
If expensive measurements are used to obtain accurate input parameters, then measurement precision is improved, but loss of substance increases due to sample consumption
Solution Approach 1:
The patent replaces expensive measurement methods with more affordable alternatives that consume less sample material. The method uses input parameters that can be obtained through less resource-intensive measurements, reducing both cost and sample loss.
Data Source
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AI summary
The invention relates to a method for determining the composition of at least one refined petroleum product from a refining process comprising at least one step of converting an input petroleum product into an output petroleum product in a reactor, said determination method comprising the steps of obtaining a representation in narrow input fractions (RCE E ) of the input petroleum product; each representation in narrow input fractions (RCE E ) corresponding to a volume percentage (%volCpE/PPE ) and/or mass percentage (%wCE/PPE ) and/or mole percentage (%molCE/PPE ) of the input petroleum product for which the boiling point (TBP) lies within a range (1E/TBP); determining a representation in wide input fractions (RCL E ) of the input petroleum product from several representations in narrow input fractions (RCE E ); each representation in wide input fractions (RCL E ) corresponding to a volume percentage (%volCL/PPE ) and/or mass percentage (%wCL/PPE ) and/or mole percentage (%molCE/PPE ) of the input petroleum product for which the boiling point (TBP) lies within a range (I1L/TBP ); at least one temperature range of a representation in wide input fractions (I1L/TBP ) comprising at least one temperature range of a representation in narrow input fractions (I1E/TBP ); determining a representation in wide output fractions (RCLS ) of an output petroleum product by application of a reaction model (R) to the representation in wide input fractions (RCLE ); determining a representation in narrow output fractions (RCES ) of an output petroleum product by application of a distribution function (p(x)) to the representation in wide output fractions (RCLS ) of the output petroleum product.