Simulation modeling of black liquor combustion subsystem in a recovery boiler furnace
- Authors: Kovalev D.A.1
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Affiliations:
- Higher School of Technology and Power Engineering, Saint Petersburg State University of Industrial Technology and Design
- Issue: Vol 27, No 3 (2025)
- Pages: 73-87
- Section: Automation and control of technological processes and productions
- Submitted: 25.08.2025
- Published: 21.10.2025
- URL: https://bakhtiniada.ru/1991-6639/article/view/306162
- DOI: https://doi.org/10.35330/1991-6639-2025-27-3-73-87
- EDN: https://elibrary.ru/JADOFM
- ID: 306162
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Abstract
A simulation model of the subsystem for black liquor burning in the recovery boiler furnace has been developed to effectively address problem of obtaining target products resulted from black liquor combustion – sodium carbonate and sodium sulfide. The model developed enables the following processes to be simulated: black liquor combustion: to study influence of black liquor composition, air flow rate, temperature and other factors on the recovery boiler efficiency; sodium sulfate reduction: to study the influence of temperature, gas composition and carbon content on the rate of sodium sulfate reduction to sodium sulfide in the recovery boiler. Application of the simulation model allows optimizing the combustion process, minimizing pollutants emitted into the air, diminishing the use of resources and the generation of waste, and increasing the overall efficiency of the regenerative cycle.
About the authors
D. A. Kovalev
Higher School of Technology and Power Engineering, Saint Petersburg State University of Industrial Technology and Design
Author for correspondence.
Email: d.a.kovalyov@yandex.ru
ORCID iD: 0000-0002-0668-8593
SPIN-code: 3884-5685
Candidate of Technical Sciences, Associate Professor, Head of the Department of Automation of technological processes and productions
Russian Federation, Ivan Chernykh street, 4, Saint Petersburg, Russia, 198095References
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