Mimizing the energy demand of CO2-capture in conventional power stations
Special Symposium - Energy
Invited Session on Energy Issues (S-2)
Keywords: energy co2 capture solvent
The capture of CO2 in power stations is related to 3 major different concepts:
• Scrubbing from flue gas of conventional fosssile energy power stations
• Gasification and integrated combined cycle (IGCC)
• Air separation and combustion in pure oxygen (oxy-fuel)
Only the 1st option is technically available but the scrubbing systems are optimized for a different application. The competitiveness of this option crucially depend on its power consumption. It is important to differ between the consumption of steam and electrical energy. Unfortunately, the simulation programs for energy engineering and chemical engineering are different. We succeeded in programming the important parts of a real fossile power plant in ASPEN Plus. Further, we developed new solvents on the basis of hyperbranched polymers.
The lecture shows, how a scrubbing unit can be optimally incorporated into a fossile power stations. The data of some hyperbranched polymers are given and compared to the present solvent MEA. Gas solubilities are given for CO2, N2 and water containing flue gases.
New solvents as scrubbing agents can turn this option to be advantageous for existing and new power stations.
Presented Tuesday 18, 15:30 to 16:00, in session Invited Session on Energy Issues (S-2).
