Protection of Roofed Alcohol Storage Tanks with Emergency Relief Venting
This protection concept provides integrated venting and explosion protection Explosion protection An explosion protection is a flame arrester that prevents flame propagation into plant sections to be protected during explosions. for systems handling flammable alcohol vapors. It combines in-line detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). protection, deflagration Deflagration Explosion propagating at subsonic velocity (EN 1127-1:1997). -safe end-of-line flame protection at the discharge point, and dedicated pressure and vacuum relief to maintain stable operating conditions during normal tank breathing.
Vapors are routed through a protected vent line to a safe location. The integrated check valve Check valve A check valve allows flow of the operating media in one direction and prevents flow in the opposite direction. reduces the risk of reverse flow and flame transmission back into the system. For abnormal operating scenarios, a high-capacity emergency relief function enables rapid pressure relief to help protect equipment Equipment Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion. integrity and support compliance with applicable industry requirements.
Protection of Roofed Alcohol Storage Tanks
PROTEGO® protection concept supports safe venting of flammable vapors by combining pressure and vacuum relief with in-line detonation protection and integrated check valve. Vapors are routed to a safe location and secured with end-of-line explosion protection to prevent flame propagation into the connected system.
Depending on the stored
product
Product
Includes equipment, protective systems, devices, components and combinations of these.
, such as alcohols, and applicable local standards and regulations, the end-of-line flame arrester may need to be designed for
endurance burning
Endurance burning
Stabilized burning for an unlimited time.
scenarios. This ensures reliable performance during prolonged ignition exposure and supports regulatory compliance for alcohol storage environments.
Protection of Roofed Spirit Receiver Vessels
Roofed spirit receiver vessels are used to collect and temporarily store alcohol vapors and liquids during processing operations. Maintaining safety in these vessels is essential for product quality and operational continuity.
The protection concept shown utalizes a Detonation Flame Arrester (the location is not restricted) to provide robust protection. This solution supports secure spirit storage while helping safeguard facilities and personnel.
Deflagration Protection for Spirit Receiver Vessels
This application provides deflagration flame protection for roofed spirit receiver vessels handling flammable alcohol vapors. The protection concept is designed for arrangements where the piping geometry remains within defined limits, such as an L/D ratio of 50 or less.
By maintaining these limits, the system helps prevent flame propagation back into the
vessel
Vessel
Container or structural envelope in which materials are processed, treated or stored.
during ignition events, supporting safer operation and alignment with applicable standards for alcohol processing and storage environments.
Protection of Roofed Stills
Roofed stills and similar vessels handling flammable vapors require protection against both flame propagation and pressure or vacuum-related damage. The protection concept shown combines end-of-line deflagration flame protection with dedicated pressure and vacuum relief.
PROTEGO® end-of-line flame arresters help prevent flame propagation through the vent outlet, while pressure and vacuum relief functions maintain stable operating conditions during normal breathing and upset scenarios. A rapid-opening vacuum relief design using 10%
lift
Lift
Lift is the actual travel of the valve pallet from the main valve out of the closed position.
technology allows the vacuum function to reach full capacity quickly. This supports protection against vacuum collapse during sudden cooling, rapid drawdown, or other vacuum-forming events, helping preserve vessel integrity.
Highlights
Flashback prevention
Lower emissions
Compliant relief capacity
Process opimization support
The PROTEGO® devices are working to our utmost satisfaction. PROTEGO®—who, with their technical expertise, supported in reducing the overall life cycle cost of the Detonation Flame Arresters installed at our plant by installing split-type of flame arresters, which are easy to clean and maintenance Maintenance Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. -friendly.
Talk to a PROTEGO® engineer to request guidance for your vessel or terminal loading application







