Spectroscopic FCC Material Analysis for Prescriptive Process Control
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Solution Overview
Problem
Fluid catalytic cracking (FCC) processes face challenges in achieving accurate and timely monitoring and control due to delayed and inaccurate information from conventional laboratory analysis, leading to suboptimal efficiency and product quality.
Innovation Solution
The implementation of spectroscopic analyzers calibrated to generate standardized spectral responses for real-time analysis of hydrocarbon feedstocks and unit materials, enabling prescriptive control of FCC processes to enhance accuracy and responsiveness of material outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional laboratory analysis is used to monitor and control FCC processes, then comprehensive material analysis is achieved, but response time is excessively long (hours to weeks)
Solution Approach 1:
The patent replaces conventional mechanical/chemical laboratory analysis methods with spectroscopic analysis methods. Spectroscopic analyzers use electromagnetic radiation interaction with matter to rapidly determine material composition and properties, eliminating the time-consuming physical and chemical processing required in traditional lab analysis while maintaining or improving measurement accuracy.
Solution Approach 2:
The patent creates a virtual model of the actual FCC process by continuously measuring material properties through spectroscopy and feeding this information to an analytical model. This virtual representation allows for real-time process monitoring and control decisions without waiting for physical sample analysis, effectively copying the essential information needed for process control.
2Loss of information
If conventional laboratory analysis is used, then detailed material characterization is obtained, but process control responsiveness is delayed
Solution Approach 1:
The patent substitutes traditional mechanical sampling and laboratory analysis with spectroscopic measurement systems that can rapidly obtain detailed material property information. These systems use light-matter interactions to simultaneously determine multiple material characteristics (composition, concentration, physical properties) in real-time, providing both comprehensive information and immediate responsiveness for process control.
Solution Approach 2:
The patent implements continuous spectroscopic monitoring of FCC process materials, replacing discrete batch laboratory analysis. This continuous measurement approach ensures that material property information is constantly updated and immediately available for process control, eliminating the interruptions and delays inherent in periodic sampling and analysis cycles.
3Loss of time
If real-time spectroscopic analysis is implemented, then process monitoring responsiveness is improved, but system complexity increases
Solution Approach 1:
The patent introduces an analytical model as an intermediary between the spectroscopic analyzers and the process control system. The analyzers continuously collect raw spectral data, the analytical model processes this information to extract meaningful material properties and predict process outcomes, and then feeds recommendations to the control system. This intermediary layer simplifies the overall system architecture while enabling real-time decision-making.
Solution Approach 2:
The patent employs spectroscopic analyzers that can simultaneously measure multiple material properties (composition, concentration, physical characteristics) using a single instrumentation platform. This multi-functional approach reduces the number of separate analysis devices needed compared to traditional methods, thereby reducing overall system complexity while providing comprehensive real-time information.
4Measurement precision
If off-line laboratory analysis is performed, then thorough material evaluation is achieved, but process optimization is delayed
Solution Approach 1:
The patent replaces off-line laboratory characterization methods with on-line spectroscopic analysis that provides equivalent or superior material evaluation capability in real-time. The spectroscopic methods can determine detailed material composition and properties continuously, and when combined with the analytical model, provide process optimization recommendations immediately, eliminating the delay between material evaluation and process adjustment.
Solution Approach 2:
The patent implements a closed-loop feedback system where spectroscopic analyzers continuously monitor material properties, the analytical model processes this information to determine optimal process conditions, and control actions are automatically implemented. This continuous feedback loop ensures that process optimization is based on current, accurate material characterization data, maintaining high manufacturing precision while eliminating the time delays of off-line analysis.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for more efficient and accurate production of FCC-related products by providing timely and accurate information for monitoring and control, ensuring material outputs converge on target properties, thereby improving the economic efficiency of the FCC process.
Implementation Method 1
analyzing the hydrocarbon feedstock sample via a first spectroscopic analyzer to provide hydrocarbon feedstock sample spectra
Data Source
AI summary
Assemblies and methods to enhance control of a fluid catalytic cracking (FCC) processing assembly associated with a refining operation, may include supplying a hydrocarbon feedstock to one or more first processing units associated with the refining operation. The assemblies and methods also may include conditioning a hydrocarbon feedstock and unit material samples, and analyzing the samples via one or more spectroscopic analyzers. The assemblies and methods further may include prescriptively controlling, via one or more FCC process controllers based at least in part on the hydrocarbon feedstock properties and the unit material properties, the FCC processing assembly, so that the prescriptively controlling results in enhancing accuracy of target content of materials produced by the FCC processing assembly, thereby to more responsively control the FCC processing assembly to achieve material outputs that more accurately and responsively converge on target properties.