Liveblog: Ship-Based Carbon Capture for Corona-Vaccine Dry Ice
Summary - A tremendous amount of dry ice (solid CO2) is required in the coming year(s) for Corona-vaccine cold storage. This is a liveblog, dedicated to investigate the potential of creating dry ice using ship-based carbon capture and storage.
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A schematic overview of the idea. (1) CO2 is produced at a vessel from its exhaust by combusting fuel. (2) The CO2 can be captured by means of a Carbon Capture and Storage (CCS) plant. (3) The (liquid) CO2 is brought to a dry ice machine (pelletizer) which forms it into dry ice. (4) The dry ice is shipped to where vaccines are stored. This entire process can be done on-board the vessel, provided there is enough space available.
+1. Potential Vessels
According to the DerisCO2 research consortium, LNG vessels are best suited for on-board Carbon Capture and Storage. One vessel that is currently being investigated for this is the Sleipnir of Heerema Marine Contractors. Heerema vessels are periodically moored (during winter) in the Calandkanaal in Rotterdam to prepare for summer campaigns.
+2. CCS (Mini) Plant
TNO Delft - a knowledge institute with many experts on the matter - is in possession of small CCS plants that could be used for this purpose, show below.
• 5 m3 exhaust gas per hour
• Preferably LNG, not necessary
• Power and water required (connecting valves unknown)
• 440V – 5 kW (frequency unknown)
• Solvent circulation flow rate: 5 to 50 l/hour
• Input gas flow rate: 1 to 5 Nm3/hour
• Stripper pressure: max. 3 bar
• Reboiler temperature: max. 150°C
• Footprint: 1.5 m × 4 m = 6 m2
• Maximum height: 7,5 m
+3. Dry Ice Machine
Liquid CO2 is supplied to a dry ice machine (also called pelletizer) and converted into dry ice. Off the shelf products are available, for example from ASCO (left) or Cryonomic (right).
Asco - 30kg/hr output
Cryonomic - 35 kg/hr output
Click here for the youtube video: https://youtu.be/nReEKh4qKQE
Questions:
- What is input and output?
- How much do these machines cost?
+4. Dry Ice Vaccine
The dry ice needs to be shipped to where it is needed. Questions to be answered are:
- How much is needed?
- Where is it needed?
- How is it best shipped? What shape/size/amount?
