Investigation of the formation processes of CO2 hydrate films on the interface of liquid carbon dioxide with humic acids solutions

Standard

Investigation of the formation processes of CO2 hydrate films on the interface of liquid carbon dioxide with humic acids solutions. / Sagidullin, Aleksey K.; Skiba, Sergey S.; Adamova, Tatyana P. et al.

In: Chinese Journal of Chemical Engineering, Vol. 79, 03.2025, p. 53-61.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{07da983d8e0a436aaa47c91ec5535f1a,

title = "Investigation of the formation processes of CO2 hydrate films on the interface of liquid carbon dioxide with humic acids solutions",

abstract = "Morphology and growth rate of carbon dioxide hydrate on the interface between liquid carbon dioxide and humic acid solutions were studied in this work. It was found that after the growth of the hydrate film at the interface, further growth of hydrate due to the suction of water in the capillary system formed between the wall of the cuvette and the end boundary of the hydrate layer occurs. Most probably, substantial effects on the formation of this capillary system may be caused by variations in reactor wall properties, for example, hydrophobic-hydrophilic balance, roughness, etc. We found, that the rate of CO2 hydrate film growth on the surface of the humic acid aqueous solution is 4-fold to lower in comparison with the growth rate on the surface of pure water. We suppose that this is caused by the adsorption of humic acid associates on the surface of hydrate particles and, as a consequence, by the deceleration of the diffusion of dissolved carbon dioxide to the growing hydrate particle.",

keywords = "Carbon dioxide, Film growth, Humic acids solutions, Hydrates, Liquid liquid reaction, Reaction kinetics",

author = "Sagidullin, {Aleksey K.} and Skiba, {Sergey S.} and Adamova, {Tatyana P.} and Manakov, {Andrey Y.}",

note = "This work was supported by the Russian Science Foundation (23-29-00830) https://rscf.ru/project/23-29-00830/.",

year = "2025",

month = mar,

doi = "10.1016/j.cjche.2024.10.030",

language = "English",

volume = "79",

pages = "53--61",

journal = "Chinese Journal of Chemical Engineering",

issn = "1004-9541",

publisher = "Chemical Industry Press",

}

RIS

TY - JOUR

T1 - Investigation of the formation processes of CO2 hydrate films on the interface of liquid carbon dioxide with humic acids solutions

AU - Sagidullin, Aleksey K.

AU - Skiba, Sergey S.

AU - Adamova, Tatyana P.

AU - Manakov, Andrey Y.

N1 - This work was supported by the Russian Science Foundation (23-29-00830) https://rscf.ru/project/23-29-00830/.

PY - 2025/3

Y1 - 2025/3

N2 - Morphology and growth rate of carbon dioxide hydrate on the interface between liquid carbon dioxide and humic acid solutions were studied in this work. It was found that after the growth of the hydrate film at the interface, further growth of hydrate due to the suction of water in the capillary system formed between the wall of the cuvette and the end boundary of the hydrate layer occurs. Most probably, substantial effects on the formation of this capillary system may be caused by variations in reactor wall properties, for example, hydrophobic-hydrophilic balance, roughness, etc. We found, that the rate of CO2 hydrate film growth on the surface of the humic acid aqueous solution is 4-fold to lower in comparison with the growth rate on the surface of pure water. We suppose that this is caused by the adsorption of humic acid associates on the surface of hydrate particles and, as a consequence, by the deceleration of the diffusion of dissolved carbon dioxide to the growing hydrate particle.

AB - Morphology and growth rate of carbon dioxide hydrate on the interface between liquid carbon dioxide and humic acid solutions were studied in this work. It was found that after the growth of the hydrate film at the interface, further growth of hydrate due to the suction of water in the capillary system formed between the wall of the cuvette and the end boundary of the hydrate layer occurs. Most probably, substantial effects on the formation of this capillary system may be caused by variations in reactor wall properties, for example, hydrophobic-hydrophilic balance, roughness, etc. We found, that the rate of CO2 hydrate film growth on the surface of the humic acid aqueous solution is 4-fold to lower in comparison with the growth rate on the surface of pure water. We suppose that this is caused by the adsorption of humic acid associates on the surface of hydrate particles and, as a consequence, by the deceleration of the diffusion of dissolved carbon dioxide to the growing hydrate particle.

KW - Carbon dioxide

KW - Film growth

KW - Humic acids solutions

KW - Hydrates

KW - Liquid liquid reaction

KW - Reaction kinetics

UR - https://www.mendeley.com/catalogue/fe3930eb-47ad-301c-b8db-090e3d8e8fad/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85219664715&origin=inward&txGid=388d3859f0851fa0ad6e7eff2a198954

U2 - 10.1016/j.cjche.2024.10.030

DO - 10.1016/j.cjche.2024.10.030

M3 - Article

VL - 79

SP - 53

EP - 61

JO - Chinese Journal of Chemical Engineering

JF - Chinese Journal of Chemical Engineering

SN - 1004-9541

ER -

ID: 64960286