Direct air capture for flue gas stream with low CO₂ concentration: Feasibility assessment of direct air capture for removing CO₂ from low CO₂ concentration flue gas streams
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Sustainable energy systems (MPSES), MSc
Publicerad
2022
Författare
Vishwanatha, Rishabh
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Direct air capture (DAC) and storage is a technology that helps yielding negative
CO2 emissions. This technology’s main objective is to reach the UN climate goals.
The advantage of DAC over other traditional post combustion carbon capture technology
is that it can capture CO2 from a stream where the CO2 concentration is
very low (0.04%, atmospheric concentration).
The aim of this thesis to assess if DAC technology can be used to capture CO2
from a manufacturing plant with very low(1%) CO2 concentration. Two promising
technologies of DAC are explored in this thesis: High temperature absorption and
Low temperature adsorption. First, a process model is developed for both the technologies
to evaluate system for the required concentration.
Then a techno-economic comparative analysis is conducted. From the results of this
thesis, it is seen that the absorption process consumed more energy when compared
to adsorption process. The absorption process also has a higher total levelized cost
of CO2 captured when compared to adsorption process.
Beskrivning
Ämne/nyckelord
Adsorption DAC , Absorption DAC