Systemsand methods for optimizing catalyst sizing and washcoat composition
By employing predictive models to account for the impact of chemical contaminants and temperature on catalysts, the systems and methods address the challenges of catalyst degradation in exhaust aftertreatment systems, enhancing durability and emissions compliance.
WO2025072877A1 Publication Date: 2025-04-03CUMMINS INC
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Patent Information
- Application Number
- PCT/US2024/049129
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-29
- Filing Date
- 2024-09-27
- Publication Date
- 2025-04-03
AI Technical Summary
Technical Problem
Existing exhaust aftertreatment systems face challenges in predicting and mitigating the degradation of catalysts due to exposure to chemical contaminants and temperature variations, which affects their performance and longevity.
Method used
The development of systems and methods that utilize predictive models to estimate the influence of chemical contaminants and temperature on catalyst performance, allowing for optimized catalyst sizing, washcoat composition, and operating parameters to enhance durability and maintain emissions compliance.
Benefits of technology
These systems and methods effectively predict and manage catalyst degradation, leading to improved catalyst longevity, maintained NOx conversion efficiency, and compliance with stringent emissions regulations.
✦ Generated by Eureka AI based on patent content.
Abstract
Systems and methods disclosed estimate the degradation of a NOx reduction catalyst or other catalyst member as a function of real-world exposure to chemical contaminants and temperature. A system includes at least one processing circuit comprising at least one memory coupled to at least one processor, the at least one memory storing instructions therein that, when executed by the at least one processor, causes the at least one processor to perform operations. The operations include receiving at least one boundary condition indicative of a duty-cycle of an exhaust aftertreatment system, receiving at least one value indicative of an operating parameter of the exhaust aftertreatment system from at least one sensor, predicting an output value associated with an operation of a catalyst of the exhaust aftertreatment system over the duty-cycle, and determining, based on the output value, a reductant dosing value for the exhaust aftertreatment system.
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