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Decanter centrifuges tailored to industrial oil recovery

| By Mary Page Bailey and Gerald Ondrey

This company has enhanced its range of three-phase decanter centrifuges (photo) for oil recovery in the most challenging industrial applications. These three-phase decanter centrifuges are not only capable of separating liquids from solids, but also liquids with different densities, like oil and water. These proven machines have now been further developed and tailored for the recovery of high-purity oil from tainted sources, such as slop and crude oil, lake, lagoon or tank cleaning runoff and API separator sludge. Crucially for oil-and-gas applications, the decanter centrifuge range includes both ATEX Zone 1 and Zone 2 machines. This makes them suitable for use in plants where an explosive atmosphere may occur during normal operations. Machine housing seals can be supplied as gas-tight, flame- and explosion-proof versions up to P < 1.5 bars(abs) featuring a labyrinth seal system with three or more rings. Zone 1 versions have a design capacity of up to 12 m3/h, while Zone 2 designs can achieve flowrates of up to 40 m3/h. — Andritz, AG, Graz, Austria