The 1st jet pump stage sucks a mixture of hydrocarbon vapours, water steam and inert gases from the vacuum column and compresses the mixture. The gas/steam mixture condenses in surface condensers which again are evacuated by a second jet pump, the motive steam of which condenses in a downstream-arranged surface condenser. The gas/steam mixture is then further compressed in a group of liquid ring vacuum pumps. In this case, three of such vacuum pumps are installed in parallel and another vacuum pump is used as permanent reserve.
GEA Wiegand is an Alliance Member of the blue competence initiative of VDMA and with our extraordinarily energy-efficient plants we offer a clear added value to our customers.