What’s a Wemco Induced Gas Flotation Depurator?
Wemco Depurator is a mechanically induced air/gas floatation machine designed for
secondary removal of oil and solids from either produced or process water. Motor
driven rotors induce a re-circulation flow of blanket gas or air from the vessel
into the process water, dispersing small bubbles throughout the tank volume. Oil
droplets and solids are carried to the surface by the rising gas and removed by
mechanical skimmers.
The new Wemco Depurator is a well-known mechanical induced gas flotation machine
in a cylindrical package. The machine is situated in a horizontal code or non-code
pressure vessel. Mechanical lip seals are used for shaft sealing. Paddle skimmers
are replaced by hydraulic skimming which eliminates paddles, weir curtains and doors.
The cylindrical tank design has a higher mixing efficiency, which reduces the overall
power requirement compared to the conventional design. The overall design will give
you equal or improved oil removal performance to the original machines with complete
off gas containment.
Wemco Dual-Cell Depurator is the new mechanical induced gas flotation machine designed
specifically for pitch and roll motion applications. The machine is packaged with
two flotation cells in series, in a horizontal pressure vessel. The machine has
a central skimming compartment, and the discharge box is isolated from the flotation
cells. Internals, as well as instrumentation and controls are designed specifically
to overcome the effects of pitch and roll motion.
The Dual-Cell design inherently minimizes the possibility of oil sinking and leaving
in the effluent, a problem often associated with vertical single cell flotation.
Wemco Depurators are ideal for secondary removal of oil and solids from produced
and process water in oil fields, refineries and gas field extraction and are unsurpassed
in performance. Petreco offers the most comprehensive line of oil separation, oil
removal and solids removal equipment for water clean-up in the industry.
Call 925.443.9800 for more information.
Decontaminating Fluid Syststemsn
Unwanted water, particulate and gaseous contamination in fluid systems can severely
impact process efficiency and product quality. Utilizing the principles of mass
transfer and vacuum dehydration, the Pall HVP series portable oil purifiers effectively
and efficiently remove 100% of the free water and 80% to 90% (or more) of the dissolved
water from the fluid system. They will also remove 100% of the free and entrained
gases and up to 75% of the dissolved gases.
Highly efficient particulate removal can be achieved by using a single, Pall Ultipor
III style element rated at Beta X(c) = 1,000, in accordance with ISO 16889. Cleanliness
levels of ISO 16/14/12 (per ISO 4406:1999) or better are typical. The HVP employs
a programmable logic controller (PLC), which monitors and sequences its operation.
The PLC will automatically shut down the purifier in the event certain operating
limits are exceeded and initiate the purifier diagnostic alarm and help screen.
This will display all alarm conditions, probable cause of the alarm(s) and help
screens that delineate corrective measures to rectify them. An in-line temperature/water
sensor is mounted at the inlet of the purifier, which continuously monitors fluid
temperature and water content. It provides both local and remote monitoring capabilities
and can be programmed with various alarm points for temperature and water content.
These units are very portable and easy to install. They only require an inlet and
outlet connection to the fluid system and the appropriate power source – 480v/3Ph/60Hz.
There are no water or compressed-air line connections required. They will reduce
system wear; improve on-line and system performance; extend fluid life; and reduce
fluid disposal costs and environmental risks.
Call your local RHFS service center at 925.443.9800 for more information or to schedule
a visit with a field representative.
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Download this Issue: SEPTEMBER 2007
Tygon™ B-44-3 Food and Beverage Tubing is odor-free, taste-free and crystal clear.
NSF and FDA compliant, and handles most types of beverages, cooking oils, syrups,
juices, extracts, and preservatives. Call 1.800.848-1141 for more information.
Call 925.443.9800 for more information.
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