LAPSE:2025.0195
Published Article
LAPSE:2025.0195
Identification of Suitable Operational Conditions and Dimensions for Supersonic Water Separation in Exhaust Gases from Offshore Turbines: A Case Study
June 27, 2025
Abstract
In offshore environments, where space, weight, and energy efficiency are critical constraints, the effective removal of water from turbine exhaust gases is essential to enhance gas treatment processes. In this context, replacing conventional methods, such as molecular sieves, with supersonic separators (SSRs) emerges as a promising alternative. This study aims to determine the most suitable operating conditions and design parameters for water removal via supersonic separation (SS) in turbine exhaust gases (TxGs) on offshore platforms. Simulations were performed in Aspen HYSYS using a unit operation extension, based on typical TxGs compositions from offshore platforms. Key parameters, including operating conditions, separator dimensions, and shock Mach number, were evaluated to maximize efficiency while minimizing equipment footprint. The results indicated a water capture efficiency of 99.45%, demonstrating that SS technology is not only compact but also a viable and efficient alternative for water removal from exhaust gases, particularly in space-constrained environments.
In offshore environments, where space, weight, and energy efficiency are critical constraints, the effective removal of water from turbine exhaust gases is essential to enhance gas treatment processes. In this context, replacing conventional methods, such as molecular sieves, with supersonic separators (SSRs) emerges as a promising alternative. This study aims to determine the most suitable operating conditions and design parameters for water removal via supersonic separation (SS) in turbine exhaust gases (TxGs) on offshore platforms. Simulations were performed in Aspen HYSYS using a unit operation extension, based on typical TxGs compositions from offshore platforms. Key parameters, including operating conditions, separator dimensions, and shock Mach number, were evaluated to maximize efficiency while minimizing equipment footprint. The results indicated a water capture efficiency of 99.45%, demonstrating that SS technology is not only compact but also a viable and efficient alternative for water removal from exhaust gases, particularly in space-constrained environments.
Record ID
Keywords
Aspen HYSYS, Offshore, Supersonic Separation, Turbine Exhaust Gases, Water
Subject
Suggested Citation
Cavalcante JDOS, Amaral MDC, Calixto EEDS, Pessoa FLP. Identification of Suitable Operational Conditions and Dimensions for Supersonic Water Separation in Exhaust Gases from Offshore Turbines: A Case Study. Systems and Control Transactions 4:276-281 (2025) https://doi.org/10.69997/sct.108727
Author Affiliations
Cavalcante JDOS: SENAI CIMATEC University, Salvador, BA, Brazil
Amaral MDC: CENPES-PETROBRAS, Rio de Janeiro, RJ, Brazil
Calixto EEDS: SENAI CIMATEC University, Salvador, BA, Brazil
Pessoa FLP: SENAI CIMATEC University, Salvador, BA, Brazil; Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
Amaral MDC: CENPES-PETROBRAS, Rio de Janeiro, RJ, Brazil
Calixto EEDS: SENAI CIMATEC University, Salvador, BA, Brazil
Pessoa FLP: SENAI CIMATEC University, Salvador, BA, Brazil; Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
Journal Name
Systems and Control Transactions
Volume
4
First Page
276
Last Page
281
Year
2025
Publication Date
2025-07-01
Version Comments
Original Submission
Other Meta
PII: 0276-0281-1541-SCT-4-2025, Publication Type: Journal Article
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Published Article
LAPSE:2025.0195
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https://doi.org/10.69997/sct.108727
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[v1] (Original Submission)
Jun 27, 2025
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