The tanks en route to their final location in the Netherlands.

Duplex tanks facilitate CO2 reduction project

A recent project in the Netherlands to reduce CO2 emissions at a chemical production plant utilised duplex stainless steel for four large tanks.
 
^ The tanks en route to their final location in the Netherlands.

Text & images courtesy of Gpi Tanks.
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Gpi Tanks recently engineered and manufactured four duplex stainless steel tanks for a major steam project. The fabricators’ customer had decided to invest in innovative technology to convert water-based waste into energy.

Transforming waste to steam

This innovative steam technology was built as an extension to an existing chemical plant. Chemicals produced on-site are destined for use in applications as diverse as clothing, furniture, household products and construction materials. The new installation transforms the production process waste into steam. This steam is then used as an energy source in the existing production plant. 

Once fully functional, the process will result in an annual reduction of around 140,000 metric tons CO2 emissions, 0.9 petajoule of energy and avoid the release of 11 million kilograms of salt residue into the surface water. To provide some perspective, the level of  CO2 reduction achieved is equal removing 31,000 cars from the roads for a year.

Innovative project

Gpi delivered four tanks for this innovative project: 
  • a 70 tons 1553 m³ Aerobic biofeed Surge Tank, 
  • a 55 tons 1108 m³ Anaerobic Biofeed Surge Tank, 
  • a 23 tons 500 m³ Arcru Storage Tank, 
  • a 4 tons 48 m³ Urea Storage tank. 
All four tanks were constructed from duplex stainless steel (LDX 2101) and designed and produced according to NEN-EN 14015 and PGS29 standards. The specified pressure of + 500mbarg was a major challenge for both the design and production. This resulted in substantial material thicknesses and extra heavy anchoring of the tanks.
 

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