Challenge
A refinery’s primary flare system, responsible for vapor control across its onsite tank farm, was taken offline for emergency maintenance. With more than 10 storage tanks still in operation, the facility needed an immediate solution to control emissions and stay within its air permit limits.
The challenge required a rapidly deployable, high-capacity thermal oxidizer to handle high-BTU vapor streams while ensuring regulatory compliance and continuous operation during the flare outage.
Solution
Envent Corporation responded within 4 hours, mobilizing a correctly sized Envent Mobile Thermal Oxidizer System (EMTOS) designed to:
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Manage concentrated VOC vapors and tank breathing emissions from over 10 active tanks
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Operate continuously for an entire 30-day period, effectively replacing the facility’s flare system
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Achieve >99.9% Destruction Removal Efficiency (DRE) in compliance with EPA BACT standards
The system was supported by Envent’s field operators, ensuring real-time monitoring and safe handling of tank vapor emissions throughout the emergency maintenance period.
Benefit
Thanks to Envent’s mobile vapor control solution, the refinery:
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Maintained tank farm operations without interruption
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Avoided any regulatory fines or environmental violations
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Successfully replaced its primary flare system without shutting down operations
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Demonstrated the critical value of having a turnkey thermal oxidizer provider with emergency response capabilities
This project exemplifies Envent’s leadership in flare replacement services, refinery turnaround support, and engineered vapor control systems—delivering safe, fast, and compliant solutions when refineries need them most.
Client continued tank farm operations during the emergency turnaround without shutting down.
