Abstract
In the study an accurate energy and economic analysis of the carbon
capture installation was carried out. Chemical absorption with the use of
monoethanolamine (MEA) and ammonia was adopted as the technology of carbon
dioxide (CO2) capture from flue gases. The energy analysis was performed
using a commercial software package to analyze the chemical processes. In
the case of MEA, the demand for regeneration heat was about 3.5 MJ/kg of
CO2, whereas for ammonia it totalled 2 MJ/kg CO2. The economic analysis
was based on the net present value (NPV) method. The limit price for
CO2emissions allowances at which the investment project becomes profitable
(NPV = 0) was more than 160 PLN/Mg for MEA and less than 150 PLN/Mg for
ammonia. A sensitivity analysis was also carried out to determine the
limit price of CO2emissions allowances depending on electricity generation
costs at different values of investment expenditures.
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