Premium
A parametric study of the techno‐economics of direct CO 2 air capture systems using solid adsorbents
Author(s) -
Sinha Anshuman,
Realff Matthew J.
Publication year - 2019
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.16607
Subject(s) - range (aeronautics) , parametric statistics , flux (metallurgy) , intensity (physics) , thermal , adsorption , energy (signal processing) , thermal energy , environmental science , process engineering , materials science , analytical chemistry (journal) , meteorology , thermodynamics , chemistry , mathematics , engineering , statistics , physics , optics , organic chemistry , metallurgy , composite material , chromatography
Direct air capture (DAC) can help in reduction of atmospheric CO 2 levels by capturing CO 2 from disperse emission sources. We analyze DAC process through solid adsorbent and perform comprehensive energy and techno‐economic analysis for different parametric scenarios. The parameters are varied such that it reflects list of possible cases of DAC solid adsorbent systems ranging from worst case to best case situations. A mid‐range estimate has also been analyzed which considers the parameter values feasible with the current state of the art. The modeling results for the mid‐range estimate indicate that the cost of DAC lies between $86 and 221 per tCO 2 , the thermal energy range varies from 3.4 to 4.8 GJ per tCO 2 captured and the electrical energy range varies from 0.55 to 1.12 GJ per tCO 2 captured. For the best and worst case scenarios, the cost of DAC ranges from $14 to 1,065 per tCO2, thermal energy ranges from 1.85 to 19.30 per tCO 2 captured and the electrical energy ranges from 0.08 to 3.79 GJ per tCO 2 captured. Flux and intensity estimates have been performed which shows higher flux and lower intensity of DAC process as compared to a tropical tree.