Why use Ejectors for Vapour Recovery?
For many of the reasons that Ejectors are an ideal solution for Flare Gas Recovery, they are also perfectly suited for use in Vapour Recovery applications. Transvac Ejectors commonly replace existing mechanical compressors as they offer more reliable service. Where mechanical compressors are prone to wear and failure, often leading to unplanned gas emissions, Ejectors do not have any moving parts and therefore do not require any maintenance. Many Transvac units have been in service for decades without any maintenance.
Our Vapour Recovery Units only require energy from a motive liquid or gas flow and in many instances, they can be driven by waste energy. If an existing source of energy is not available a complete skid mounted package can be supplied complete with associated pumps etc. similar to flare gas recovery systems.
The simple construction of Vapour Recovery Ejectors means they are not prone to gas leakage, unlike compressor seals which experience high levels of wear leading to regular leakage and failure. Transvac Vapour Recovery Ejectors are also highly tolerant to corrosive / sour gases, such as H2S, as they can be made from materials to suit the process requirements.