The MARAFIQ desalination plant in Saudi Arabia by SIDEM of France uses 10,000 tons of duplex stainless steel in grades SAF 2304® and 2205 from Outokumpu, out of a total quantity of 16,500 tons for the plant.
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The Al Hidd desalination plant in Bahrain, built by SIDEM in 2006, used 2,200 tons of
duplex stainless steel from Outokumpu
Photo courtesy of SIDEM
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The Eastern Province of Saudi Arabia is seeing fast industrialization, increasing population numbers and, as a result, growing needs of freshwater. The long-term plan for this desert region includes expansion of power generation and desalination capacities. As part of the plan, Veolia Water Solutions & Technologies, through its thermal-desalination specialist SIDEM (Veolia WST-Sidem), has been chosen to design and build one of the world’s largest desalination plants for the MARAFIQ power and water utility company. The plant will provide 800,000 cubic meters of desalted water per day.
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SIDEM is the world leader in Multiple Effect Distillation (MED), and this technology also forms the core of the MARAFIQ plant. The process utilizes steam from the adjacent power plant to evaporate seawater at low temperatures. Featuring low energy consumption, the process addresses the normally high energy consumption of desalination.
The evaporator chambers will be built using duplex stainless steel plate from Outokumpu. Duplex stainless steels have emerged as optimal materials for desalination owing to their high strength, combined with good to very high corrosion resistance depending on the grade. As a result, duplex evaporators can be built with thinner plates, requiring less material and less welding compared to other material configurations.
Outokumpu is a pioneer in duplex stainless steel for desalination. Outokumpu first introduced the idea of solid duplex evaporators and then developed the concept of “DualDuplex” evaporators, where two different grades of duplex are used: a highly corrosion-resistant grade is used in sections exposed to the most hostile conditions and a milder grade in sections exposed to less hostile conditions.
SIDEM and Outokumpu first partnered in 2006, to build the Al Hidd desalination plant in Bahrain using the DualDuplex concept and duplex grades SAF 2304® and 2205. The two companies now continue the cooperation in the MARAFIQ project based on the same concept and grades.
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Project Facts |
| Project |
Desalination plant for MARAFIQ Power and Water Utility Company
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| Contractor |
SIDEM, a Veolia Water group company
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| Location |
Saudi Arabia
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| Process |
MED
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| Capacity |
800,000m3 / day
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| Number of units |
27
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| Commissioning |
2010
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| Outokumpu supply |
Duplex plate, 8,000 tons of grade SAF 2304® (EN 1.4362) and 2,000 tons of grade 2205 (EN 1.4462), mainly 8mm thick and 2m wide
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For more information, contact |
Hachemi Loucif
Outokumpu Desalination Segment Leader
Degerfors, Sweden
Tel. +46 586 47 626
E-mail: hachemi.loucif(at)outokumpu.com
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