relation: https://khub.utp.edu.my/scholars/11612/
title: Investigation of functionalized carbon nanotubes� performance on carbon dioxide hydrate formation
creator: Nashed, O.
creator: Partoon, B.
creator: Lal, B.
creator: Sabil, K.M.
creator: Shariff, A.M.
description: In this work, the impact of functional group on the thermodynamics and kinetics of CO2 hydrates are investigated experimentally. The hydroxylated multi-wall carbon nanotubes (OH-MWCNT) and carboxylated carbon nanotubes (COOH-MWCNT) along with pristine carbon nanotubes (MWCNT) are selected for this study. The carbon nanotubes are suspended in a 0.03 wt sodium dodecyl sulfate (SDS) aqueous solution and the results are compared with SDS aqueous solution at the same concentration of 0.03 wt and deionized water. The CO2 hydrate phase boundary and kinetic parameters of CO2 hydrate formation including induction time, the initial rate and amount of gas consumed, gas uptake, storage capacity, and water to hydrates conversion are studied. The results show that the nanofluids studied do not affect the equilibrium conditions of CO2 hydrates. In addition, 0.01 and 0.05 wt of COOH-MWCNT mixed with 0.03 wt SDS showed highest initial hydrate formation rate and gas uptake. Furthermore, a comparison between SDS and COOH-MWCNT (without stabilizer SDS) at 0.03 wt revealed that addition of COOH-MWCNT to the water enhance the initial hydrates formation rate compared to SDS. © 2019 Elsevier Ltd
publisher: Elsevier Ltd
date: 2019
type: Article
type: PeerReviewed
identifier:   Nashed, O. and Partoon, B. and Lal, B. and Sabil, K.M. and Shariff, A.M.  (2019) Investigation of functionalized carbon nanotubes� performance on carbon dioxide hydrate formation.  Energy, 174.  pp. 602-610.  ISSN 03605442     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063113394&doi=10.1016%2fj.energy.2019.02.193&partnerID=40&md5=76b6ba41e3218c55bc815198669407f8
relation: 10.1016/j.energy.2019.02.193
identifier: 10.1016/j.energy.2019.02.193