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Knud E. Hansen Wins DNV Approval in Principle for Liquified CO2 Tank Design

Danish naval architect company Knud E. Hansen has received approval in principle (AiP) from classification society DNV for the design of a type-C liquified CO2 tank.

The tank has been designed as part of a liquified CO2 carrier for energy company Ineos Energy under Project Greensand. This project involves capturing CO2 from emitters onshore and storing it under the North Sea.

According to DNV, intensive use of FEM (Finite Element Method) has been applied to analyze all aspects of the tank to the satisfaction of the classification society.

Knud E. Hansen has been responsible for several elements of the liquified CO2 carrier, including:

  • Ship design, incorporating DP2 and bow/turret unloading system integration
  • Waste heat management to improve OPEX during CO2 conditioning
  • Design of type-C tanks to the approved-in-principle stage
  • Process system for CO2 conditioning and high-pressure injection into the reservoir
  • 3D model for cargo deck layout coordination

Last April, Knud E. Hansen revealed a new tanker vessel design specifically for transporting carbon dioxide (CO2). The new tanker design features cutting-edge technologies and design elements tailored to the unique requirements of CO2 transport.

The CO2 carrier will be a DP-2 ship with an anchor loading system, storage tanks, and transfer equipment for off-loading and optional heating of CO2 to the required pressure and temperature for underground injection. The vessel’s hull will be optimized for stable and efficient navigation, while its cargo tanks will be heavily insulated and reinforced to withstand the high pressure and low temperatures required for storing CO2 in liquid form.

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