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DecaOil^®

Oil Recovery & Oil Production

The Hiller^® DecaOil^® 3-phase centrifuge is a solid-bowl centrifuge especially designed for highly efficient, simultaneous sedimentation of solids, and separation of two liquid phases.

The feed enters the rotating bowl through a stationary feed tube and is thrown radially out wards against the bowl wall. The centrifugal force generated by the rotation of the bowl rapidly settles the solids particles at the bowl wall, where they are moved toward the solids discharge ports by a screw conveyor.

As the clarified liquid flows along the bowl toward the liquids discharge zone, the centrifugal force causes the immiscible light and heavy phases (typically oil and water) to separate; the oil moving toward the rotating axis and the water moving toward the bowl wall. A weir or underflow baffle in the liquids discharge zone separates the two phases, allowing oil and water to flow into separate discharge chutes outside the rotor.

The levels of the oil and water discharges are adjusted according to the relative densities of the phases and their respective quantities, in order to achieve optimal separation of the two liquids. Liquid phase discharge can be by weir plates, nozzles or centripetal pump. The liquid levels in the rotor and the conveyor's differential speed are the controls for optimal solids removal, highest cake dryness, and highest purities of the liquid phases.

Typical applications

• Glycerin/fatty acid/salt separation in biodiesel production
• Animal fat production from slaughtering offal
• Tallow recovery from fleshings
• Fish meal stick water
• Slop oil processing
• Bottom sludge from crude oil storage tanks
• Oil lagoon clearing
• Oily sludges from oil fields, oil refineries, petrol stations, metal industry, etc.
• Tar processing on coking plants and in tar chemistry
• Oil recovery from caustic in barrel washing
• Vegetable Oils

PDF-Brochure	Languages
DecaOil - Oil Recycling & Production	DE • EN • RU • CN
DecaOil - Biodiesel Industries	DE • EN • PT
DecaOil - Oil Industries	EN • CN
Schematic Sectional Drawings	DE • EN