eprintid: 11612 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/16/12 datestamp: 2023-11-10 03:26:08 lastmod: 2023-11-10 03:26:08 status_changed: 2023-11-10 01:15:41 type: article metadata_visibility: show creators_name: Nashed, O. creators_name: Partoon, B. creators_name: Lal, B. creators_name: Sabil, K.M. creators_name: Shariff, A.M. title: Investigation of functionalized carbon nanotubes� performance on carbon dioxide hydrate formation ispublished: pub keywords: Carbon dioxide; Deionized water; Gas hydrates; Hydration; Kinetics; Nanotubes; Sodium dodecyl sulfate; Sulfur compounds; Thermodynamics, Carbon dioxide hydrates; Enhancement ratios; Equilibrium conditions; Functionalized carbon nanotubes; Hydrate formation; Induction time; Kinetic hydrates; Thermodynamics and kinetics, Multiwalled carbon nanotubes (MWCN), carbon dioxide; carbon nanotube; concentration (composition); experimental study; gas hydrate; performance assessment; reaction kinetics; thermodynamics note: cited By 37 abstract: 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 date: 2019 publisher: Elsevier Ltd official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063113394&doi=10.1016%2fj.energy.2019.02.193&partnerID=40&md5=76b6ba41e3218c55bc815198669407f8 id_number: 10.1016/j.energy.2019.02.193 full_text_status: none publication: Energy volume: 174 pagerange: 602-610 refereed: TRUE issn: 03605442 citation: 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