Abstract
A closed-loop experimental setup was developed to investigate the kinetics of CO2 and H2O coadsorption onto a differential bed comprising amine-functionalized nanofibrillated cellulose (NFC) under conditions relevant to direct air capture. The temporal sorbate uptake profiles were determined in the absence of external heat and mass transfer intrusion based on the mass balance in the constant-volume gas phase. The uncertainty of the mass balance calculations caused by the inherent nonuniform gas pressure and temperature within the tubing, valves, and instrumentation was decreased 4-fold with incorporation of a large perfectly mixed gas tank that occupied 94% of the total volume of the closed loop. The preliminary results have revealed the half-times for H2O and CO2 adsorptions of the order of tens of seconds and tens of minutes, respectively. This finding implies that coadsorption on amine-functionalized NFC can be investigated by considering that the H2O loading on the sorbent is at any instance in the eq...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
