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Arriola González KR, Armas-Perez JC, Vázquez-Núñez E, Cárdenas JC, Mendoza A, Reyes-Aguilera JA, Figueroa-Gerstenmaier S. Determination of liquid-vapor equilibrium and critical properties of fatty acids for biodiesel production through molecular dynamics. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:214002. [PMID: 35234670 DOI: 10.1088/1361-648x/ac5996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
In recent years, biodiesel production has emerged as an option for renewable and green fuel generation due to the constant reduction of fossil fuel reservoirs. Biofuels as biodiesel also show valuable attributes, environmentally speaking, due to their low environmental impact, contributing to the achievement of sustainability. However, costs are not allowable for large-scale production. Thereby, several novel processes have been proposed (e.g., reactive distillation) to solve this issue. An inconvenience for the development of these processes is the little information in the literature about the critical properties of fatty acids, which are precursors of biodiesel. Determination of critical properties for fatty acids through experimentation is difficult. The reason is that fatty acids tend to self-associate (to dimerize) due to carboxylic groups presence through hydrogen bonds, and consequently, have higher boiling points than other compounds of similar molecular mass (e.g., hydrocarbons, esters). Therefore, alternative methods for this determination are required. One choice is the group-contribution method, which is based on the structure of the molecule; however, results can significantly vary among different group-contribution approaches. Another alternative (and the focus of this research) for the determination of these properties is molecular simulation techniques. In this work, the liquid-vapor equilibrium as a function of temperature and the surface tension of three pure fatty acids of long chain (linoleic, oleic, and palmitic acid) have been calculated. Simulations have been performed by molecular dynamics using the method of direct determination of phase coexistence with the software GROMACS; in which the transferable potentials for phase equilibria united atom forcefield (TraPPE-UA) have been implemented for these specific molecules. Orthobaric densities and surface tension values have been reported at temperatures near the critical point (from 650 K to 800 K). Critical properties (temperature, pressure, density) have been extrapolated from trajectories obtained in these simulations using scaling law relations. Critical properties for these compounds are not available experimentally, therefore, group contribution calculations from the literature were used as a reference. In this comparison, the palmitic acid properties calculated in this work, show the best agreement among the three substances investigated.
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Affiliation(s)
- Kevin R Arriola González
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - Julio C Armas-Perez
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - Edgar Vázquez-Núñez
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - José Carlos Cárdenas
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - Angeles Mendoza
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - José Antonio Reyes-Aguilera
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
| | - Susana Figueroa-Gerstenmaier
- División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Lomas del Bosque 103, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico
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Haarmann N, Enders S, Sadowski G. Heterosegmental Modeling of Long-Chain Molecules and Related Mixtures using PC-SAFT: 1. Polar Compounds. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03799] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Niklas Haarmann
- Laboratory of Thermodynamics, TU Dortmund, Emil-Figge-Strasse 70, D-44227 Dortmund, Germany
| | - Sabine Enders
- Institute for Technical Thermodynamics and Refrigeration, KIT, Engler-Bunte-Ring 21, D-76131 Karlsruhe, Germany
| | - Gabriele Sadowski
- Laboratory of Thermodynamics, TU Dortmund, Emil-Figge-Strasse 70, D-44227 Dortmund, Germany
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Evangelista NS, do Carmo FR, de Sant’Ana HB. Estimation of Physical Constants of Biodiesel-Related Fatty Acid Alkyl Esters: Normal Boiling Point, Critical Temperature, Critical Pressure, and Acentric Factor. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01310] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nathan S. Evangelista
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Iguatu. 63500-000 Iguatu, CE, Brazil
- Grupo de Pesquisa em Modelagem Termodinâmica, Departamento de Engenharia e Tecnologia, Universidade Federal Rural do Semi-Árido, Campus Leste − Centro de Engenharias, 59625-900 Mossoró, RN, Brazil
| | - Frederico R. do Carmo
- Grupo de Pesquisa em Modelagem Termodinâmica, Departamento de Engenharia e Tecnologia, Universidade Federal Rural do Semi-Árido, Campus Leste − Centro de Engenharias, 59625-900 Mossoró, RN, Brazil
| | - Hosiberto B. de Sant’Ana
- Grupo de Pesquisa em Modelagem Termodinâmica, Departamento de Engenharia e Tecnologia, Universidade Federal Rural do Semi-Árido, Campus Leste − Centro de Engenharias, 59625-900 Mossoró, RN, Brazil
- Grupo de Pesquisa em Termofluidodinâmica Aplicada, Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455-760 Fortaleza, CE, Brazil
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Wallek T, Knöbelreiter K, Rarey J. Estimation of Pure-Component Properties of Biodiesel-Related Components: Fatty Acid Ethyl Esters. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b03794] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas Wallek
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25/C, 8010 Graz, Austria
| | - Klaus Knöbelreiter
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25/C, 8010 Graz, Austria
| | - Jürgen Rarey
- DDBST GmbH, Marie-Curie-Straße 10, 26129 Oldenburg, Germany
- University of KwaZulu-Natal, King George V Avenue, Durban 4041, South Africa
- Carl von Ossietzky University of Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129 Oldenburg, Germany
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Arce PF, Vieira NF, Igarashi EMS. Thermodynamic Modeling and Simulation of Biodiesel Systems at Supercritical Conditions. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04195] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pedro F. Arce
- Chemical Engineering Department,
Engineering School of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | - Nian F. Vieira
- Chemical Engineering Department,
Engineering School of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
| | - Edson M. S. Igarashi
- Chemical Engineering Department,
Engineering School of Lorena, University of São Paulo, Lorena, São Paulo, Brazil
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Evangelista NS, do Carmo FR, de Sant’Ana HB. Estimation of Vapor Pressures and Enthalpies of Vaporization of Biodiesel-Related Fatty Acid Alkyl Esters. Part 1. Evaluation of Group Contribution and Corresponding States Methods. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04772] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nathan S. Evangelista
- Grupo
de Pesquisa em Termofluidodinâmica Aplicada, Departamento de
Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455-760 Fortaleza, CE Brazil
| | - Frederico R. do Carmo
- Grupo
de Pesquisa em Termofluidodinâmica Aplicada, Departamento de
Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455-760 Fortaleza, CE Brazil
- Departamento
de Ciências Exatas, Tecnológicas e Humanas, Universidade Federal Rural do Semi-Árido, Campus de Angicos, 59515-000 Angicos, RN Brazil
| | - Hosiberto B. de Sant’Ana
- Grupo
de Pesquisa em Termofluidodinâmica Aplicada, Departamento de
Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455-760 Fortaleza, CE Brazil
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