Technologies

Methanol Synthesis

Methanol synthesis is where gas is converted into liquid. In eFuel facilities developed by Liquid Wind, this step combines captured biogenic CO₂ from industrial flue gases with green hydrogen to produce fossil-free eMethanol.

How Methanol Synthesis Works

eMethanol produced in our eFuel facilities undergoes a Power-to-Liquid (PtL) process consisting of several key steps.

First, green hydrogen generated through water electrolysis and biogenic CO₂ captured from industrial flue gases are compressed, mixed, and pressurised. This gas mixture is then heated to optimal conditions to enable efficient methanol conversion.

Next, the compressed and heated gases enter a synthesis reactor where hydrogen and carbon dioxide react over a catalyst, producing methanol and water.

Finally, the resulting methanol-water mixture is sent to a distillation column, where it is heated to separate methanol from water and other hydrocarbons. Once the methanol meets the required quality standards, it is stored and ready for use.

Heat Recovery in Methanol Synthesis

Methanol synthesis is a central step in eMethanol production, where captured carbon dioxide (CO₂) with hydrogen (H₂) to form methanol (CH₃OH). But beyond this, methanol synthesis also has the great advantage of being exothermic, meaning it releases heat:

CO₂ + 3H₂ → CH₃OH + H₂O + heat

This released heat presents a valuable opportunity for energy recovery. Instead of being wasted, it can be reused within the facility to support other thermal processes, lowering the need for external heating. By capturing and reusing this energy, the overall process becomes more efficient, reduces emissions, and supports a more circular and sustainable operation.

Leveraging Residual Heat for eFuel Production

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