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RESEARCH PAPER
Comparative analysis of different catalytic baskets for dual-bed catalytic reactors
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1
Nitric Acid Technology Department, Łukasiewicz Research Network—New Chemical Syntheses Institute,, Poland
 
2
Faculty of Mechanical Engineering,, Lublin University of Technology, Poland
 
3
Faculty of Aviation, Polish Air Force University, Poland
 
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Faculty of Mechanical Engineering, Lublin University of Technology, Poland
 
 
Submission date: 2024-12-01
 
 
Final revision date: 2025-01-16
 
 
Acceptance date: 2025-01-19
 
 
Online publication date: 2025-01-28
 
 
Publication date: 2025-01-28
 
 
Corresponding author
Paweł Capała   

Nitric Acid Technology Department, Łukasiewicz Research Network—New Chemical Syntheses Institute,, Al. Tysiąclecia Państwa Polskiego 13a, 24-110, Puławy, Poland
 
 
Eksploatacja i Niezawodność – Maintenance and Reliability 2025;27(3):200290
 
HIGHLIGHTS
  • The structure of different catalytic baskets for dual bed reactors was discussed.
  • The contours of linear velocity in the catalyst beds were assessed.
  • The contours of pressure drop in the catalyst beds were assessed.
  • The linear velocity and pressure drop results were analysed and assessed in the dual beds.
KEYWORDS
TOPICS
ABSTRACT
Catalytic baskets used to support catalyst beds can have different designs. For industrial practice, reactors with axial and radial gas flow direction through the catalyst bed are commonly used. The influence of the tail gas distribution in a dual-bed catalytic reactor on the linear gas flow velocity and pressure drop across the catalyst bed was analysed. The analyses were performed for the reactor's use in a pilot nitric acid plant for axial-radial and radial catalytic basket designs. The results indicated a significant influence of the basket design on the linear gas flow velocity profile and pressure drop distribution in a dual-bed catalytic reactor. The most advantageous solution was the coaxial arrangement of the catalyst beds without separating them with a space, which can affect the reliability of the reactor. The lowest linear flow velocity and gas flow resistance values in a dual-bed catalytic reactor were obtained for the mixed axial and radial gas flow through the catalysts beds, separated only with a porous baffle.
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