we know that amount of energy required for regeneration of carbon dioxide is much more in water amine solution. Can anybody tell me what is the exact amount of energy required per kg or per tonne CO2? If possible provide reference.
Dear researcher,
Can you please elaborate the question?
Regards,
I would recomend a lot of papers that can be found in International journal of greenhouse gas control. There are many studies for different types of amines. Most data u will found for monoethanolamine (MEA), while other are less investigated. Two things u must keep in mind. First, primary amines react fast but can have only 0.5 loading capacity (mol of CO2 per mol of amine). They require high energy for regeneration. On the other hand, ternery amines react much slower but have loading capacity of 1. They require less energy for regeneration but reaction is much slower. New research are showing that if u combine primary and ternery amines, u can have both positive effects of all amine groups. Other important thing is that that if u want to completly regenerate sorbent u need a lot of energy to return pure sorbent. On the other hand if u regenerate only small amount of sorbent for instance around 0,3. with increase of mass percent of amine amount of water is increased, thus more energy is used instead of sorbent regeneration, for evaporation of water. So optimum values for MEA are around 20 to 25 mas.%.
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