{"id":5456,"date":"2026-07-16T18:59:12","date_gmt":"2026-07-16T16:59:12","guid":{"rendered":"https:\/\/prematecnica.com\/producto\/vcu\/"},"modified":"2026-08-13T14:46:50","modified_gmt":"2026-08-13T12:46:50","slug":"vcu","status":"publish","type":"producto","link":"https:\/\/www.prematecnica.com\/en\/combustion\/vapour-treatment\/vcu\/","title":{"rendered":"VCU (Vapour Combustion Unit)"},"content":{"rendered":"

SAFE AND CONTROLLED COMBUSTION OF HYDROCARBON AND VOC VAPOURS TO REDUCE EMISSIONS AND OPERATE SAFELY<\/b><\/b><\/h3>\n

VCUs (Vapour Combustion Units), are equipment designed for the safe combustion of hydrocarbon and VOC vapours generated during loading, storage, transfer and degassing operations. Combustion is carried out in a controlled system within a combustion chamber with temperature control, high thermal destruction and safety features for handling flammable mixtures. <\/p>\n

In PREMATECNICA we design and integrate VCUs adapted to vapour composition, concentration range, flow rate, explosive risk, operation and emissions requirements, safety and automation.<\/p>\n

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WHEN TO CHOOSE A VCU<\/h3>\n

A VCU is suitable when the facility needs to treat hydrocarbon or VOC vapours by safe and controlled combustion, and when vapour recovery is not prioritised or feasible. In the case of a VRU<\/span><\/a>, it is selected when the primary objective is to destroy vapour safely, especially in occasional degassing, or when the acquisition cost is to be limited. <\/p>\n

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OPERATION AND SETTINGS<\/h3>\n

A Vapour Combustion Unit conducts vapour to a combustion system where it is mixed with air and oxidised properly. The flame is contained within the equipment, reducing visibility, radiation and operational disturbances, and helping to maintain the temperature needed to optimise VOC and hydrocarbon destruction. <\/p>\n

These solutions are designed for potentially explosive vapours and can be classified as ATEX Zone 0 or Zone 1 depending on the risk of the process. Therefore, the design must cover emissions, process safety, automation, purges and safe start-up and stop sequences. <\/p>\n

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MAIN COMPONENTS AND SYSTEM SAFETY<\/h3>\n

A VCU normally integrates the combustor or combustion chamber, air-assisted main burners, pilot burners, ignition and flame detection<\/a><\/span> system, air and temperature control and automatic logic for starting, purging, operation and safe stopping. Additionally, if additional pressure is required in the gas to be treated, a fan suitable for indoor ATEX zone<\/a><\/span> can be installed. <\/p>\n

Safety is critical. The anti-backfire or anti-flashback burners and the detonation flame arresters<\/a><\/span> act as barriers against flame reversal. The equipment also meets safety requirements for combustion and fuel handling systems, as set out in EN-746.<\/p>\n

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DESIGN AND PERFORMANCE CRITERIA<\/h3>\n

A VCU should be defined from the composition of the vapour, presence of inert air or gas, hydrocarbon concentration range, flow rate, available pressure, continuity of operation and emission target.<\/p>\n

In PREMATECNICA we design equipment with the aim of minimising auxiliary fuel consumption, the risk of smoke generation and with an extremely reliable high energy ignition system. All this also studying pressure loss and integration with the plant\u2019s vapour system, with destruction efficiencies exceeding 99.9%. <\/p>\n

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PREMATECNICA DESIGNS AND IMPLEMENTS YOUR VCU<\/h3>\n

Each VCU requires a specific design base. In PREMATECNICA we analyse the specific application, define the appropriate configuration and its integration with the installation, from vapour capture to safe combustion and final control. <\/p>\n

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