A hybrid vacuum ejector system manufactured by GEA was delivered to Bharat Petroleum Corp. Ltd. for the crude distillation unit at its Mumbai (India) refinery. GEA says it is the first time this technology has been used on a major refinery in India.
The hybrid vacuum ejector system is fitted with steam-jet vacuum pumps and liquid-ring vacuum pumps that together provide energy-efficient, vacuum ejector technology. The combination of the two pump types at a well-defined interstage pressure reduces the consumption of the motive medium, power and cooling water. This is achieved by fitting condensers between the jet vacuum pumps to reduce the flow of drawn-off vapors and the motive medium before they reach the liquid ring pump.