HP Separator Blowdown — Dynamic Simulation
Project Overview
Dynamic process simulation of a high-pressure production separator blowdown system, assessing depressurisation from 120 bara to 50% MAWP within the 15-minute target required by the project ESD philosophy.
Technical Scope
- Initial pressure
- 120 bara
- Target
- 50% MAWP within 15 min
- Standards
- API 521
- Tools
- Dynamic process simulation
- Client
- APSL Systems Limited
Engineering Approach
Blowdown valve Cv was validated against API 521 requirements, with minimum vessel wall temperatures during depressurisation confirmed above the material impact test temperature for the specified grade of carbon steel.
The time-varying flare load profile was assessed to confirm adequacy of the existing flare stack capacity under the blowdown scenario, with backup hand calculations supporting each result.
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Discuss your projectProject Outcomes
- Reviewed and accepted by the project's independent safety assessor
- Results incorporated into the formal safety case without modifications
- No design changes required — blowdown system confirmed compliant
Services Delivered
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