X20 Skid-mounted centrifuge for heavy crude oil dehydration
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Catalog excerpts

X20 Skid-mounted centrifuge for heavy crude oil dehydration - 1

For produced water de-oiling X20 The Alfa Laval X20, model OFSX 520S-71CEGPX, is a high capacity concentrator designed for de-oiling of produced water. The design is based on the robust nozzle-type disc bowl centrifuge in order to withstand the demanding conditions in the oil-producing industry. The machine is in compliance with the EC ATEX directive category 2, and therefore Zones 1 and 2. As an option, the machine can be operated under a positive pressure of 400 kPa, as it has an ASME-approved pressure casing. The X20 concentrator is one machine in the X20 family, which also consists of machines for applications such as heavy crude and tar sand dehydration. Applications The X20 concentrator is designed to reduce the oil content to 15 ppm or lower in produced water. Using a centrifuge for this application is especially suitable for: - heavy crude oil facilities - gas production facilities with associated condensate - deepwater offshore facilities including floating platforms The compact design makes it especially useful for offshore processing, including at floating platforms where the sea heave may cause problems for conventional technology X20 concentrator complete with skid.

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X20 Skid-mounted centrifuge for heavy crude oil dehydration - 2

Standard design Separation takes place in the bowl, which is placed on a vertical spindle. An electric motor mounted vertically drives the spindle near the bottom via a flat belt. Circulating oil ensures that the bearings are lubricated. An external lube oil pump maintains the necessary pressure. The centrifuge motor is designed for variable frequency drive. All metallic parts that come into contact with the process liquid are made of high-grade stainless steel. Liquid-wetted gaskets are made of fluorocarbon rubber. To recover energy from the discharged nozzle flow, the nozzles are placed...

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X20 Skid-mounted centrifuge for heavy crude oil dehydration - 3

Technical specifications Throughput capacity max. 190 m3/h (840 US gpm) 1) Water flow max. 180 m3/h (800 US gpm) Oil flow max. 10 m3/h (44 US gpm) Nozzle flow max. 30 m3/h (130 US gpm) Bowl volume 70 l Bowl speed 3,740 rpm Motor speed, synchronous 50/60Hz 1,500/1,800 rpm Motor power installed 152 kW Centrifugal force inside bowl max. 6,480 g Starting time 5–8 mins Stopping time without brake 80 mins Stopping time with brake 6–7 mins Feed temperature range 0–100°C (32–212 °F) Feed inlet pressure at inlet flange 190 kPa 2) Oil outlet pressure at outlet flange max. 450 kPa 3) Outlet pressure...

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X20 Skid-mounted centrifuge for heavy crude oil dehydration - 4

PCHS00015EN 0608 How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com Alfa Laval reserves the right to change specifications without prior notification.

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