Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface

Le Wang; Arjun Valiya Parambathu; Amin Haghmoradi; Dilip Asthagiri; Walter G. Chapman

doi:10.1190/RDP2018-41995529.1

Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface

Le Wang, Arjun Valiya Parambathu, Amin Haghmoradi, Dilip Asthagiri, Walter G. Chapman

Rice University

Research output: Contribution to conference › Paper › peer-review

Abstract

Naphthenic acids are important constituents of crude oil. Their adsorption on calcite, the dominant mineral surface in reservoirs, can have implications for altering the wettability of the surface and thus on the extraction/recovery of the hydrocarbon. While calcite is nominally polar, in the presence of an adsorbed layer of water, the surface shows characteristics that are expected of apolar surfaces. We find that both the acid group of naphthenic acid and the hydrocarbon tail of the acid play important roles in the adsorption. Longer-chain acids, for example, bind better to the surface than shorter-chain acids. The adsorption is also entropically driven, reminiscent of association between hydrocarbons in water.

Original language	English
Pages	125-127
Number of pages	3
DOIs	https://doi.org/10.1190/RDP2018-41995529.1
State	Published - 2018
Externally published	Yes
Event	SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018 - Abu Dhabi, United Arab Emirates Duration: May 9 2018 → May 10 2018

Conference

Conference	SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018
Country/Territory	United Arab Emirates
City	Abu Dhabi
Period	05/9/18 → 05/10/18

Bibliographical note

Publisher Copyright:
© 2018 Society of Exploration Geophysicists.

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Wang, L., Parambathu, A. V., Haghmoradi, A., Asthagiri, D., & Chapman, W. G. (2018). Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface. 125-127. Paper presented at SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018, Abu Dhabi, United Arab Emirates. https://doi.org/10.1190/RDP2018-41995529.1

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title = "Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface",

abstract = "Naphthenic acids are important constituents of crude oil. Their adsorption on calcite, the dominant mineral surface in reservoirs, can have implications for altering the wettability of the surface and thus on the extraction/recovery of the hydrocarbon. While calcite is nominally polar, in the presence of an adsorbed layer of water, the surface shows characteristics that are expected of apolar surfaces. We find that both the acid group of naphthenic acid and the hydrocarbon tail of the acid play important roles in the adsorption. Longer-chain acids, for example, bind better to the surface than shorter-chain acids. The adsorption is also entropically driven, reminiscent of association between hydrocarbons in water.",

author = "Le Wang and Parambathu, {Arjun Valiya} and Amin Haghmoradi and Dilip Asthagiri and Chapman, {Walter G.}",

note = "Publisher Copyright: {\textcopyright} 2018 Society of Exploration Geophysicists.; SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018 ; Conference date: 09-05-2018 Through 10-05-2018",

year = "2018",

doi = "10.1190/RDP2018-41995529.1",

language = "English",

pages = "125--127",

}

Wang, L, Parambathu, AV, Haghmoradi, A, Asthagiri, D & Chapman, WG 2018, 'Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface', Paper presented at SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018, Abu Dhabi, United Arab Emirates, 05/9/18 - 05/10/18 pp. 125-127. https://doi.org/10.1190/RDP2018-41995529.1

Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface. / Wang, Le; Parambathu, Arjun Valiya; Haghmoradi, Amin et al.
2018. 125-127 Paper presented at SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018, Abu Dhabi, United Arab Emirates.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface

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AU - Parambathu, Arjun Valiya

AU - Haghmoradi, Amin

AU - Asthagiri, Dilip

AU - Chapman, Walter G.

PY - 2018

Y1 - 2018

N2 - Naphthenic acids are important constituents of crude oil. Their adsorption on calcite, the dominant mineral surface in reservoirs, can have implications for altering the wettability of the surface and thus on the extraction/recovery of the hydrocarbon. While calcite is nominally polar, in the presence of an adsorbed layer of water, the surface shows characteristics that are expected of apolar surfaces. We find that both the acid group of naphthenic acid and the hydrocarbon tail of the acid play important roles in the adsorption. Longer-chain acids, for example, bind better to the surface than shorter-chain acids. The adsorption is also entropically driven, reminiscent of association between hydrocarbons in water.

AB - Naphthenic acids are important constituents of crude oil. Their adsorption on calcite, the dominant mineral surface in reservoirs, can have implications for altering the wettability of the surface and thus on the extraction/recovery of the hydrocarbon. While calcite is nominally polar, in the presence of an adsorbed layer of water, the surface shows characteristics that are expected of apolar surfaces. We find that both the acid group of naphthenic acid and the hydrocarbon tail of the acid play important roles in the adsorption. Longer-chain acids, for example, bind better to the surface than shorter-chain acids. The adsorption is also entropically driven, reminiscent of association between hydrocarbons in water.

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DO - 10.1190/RDP2018-41995529.1

M3 - Paper

AN - SCOPUS:85053690146

SP - 125

EP - 127

T2 - SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition 2018, RDP 2018

Y2 - 9 May 2018 through 10 May 2018

ER -

Simulation studies of thermodynamic driving forces for the adsorption of naphthenic acid analogues on calcite() surface

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