High Pressure Solid-Liquid Equilibrium of Fatty Alcohols Binary Systems from 1-Dodecanol, 1-Tetradecanol, 1-Hexadecanol, and 1-Octadecanol

Autor(es)

Dorighello Carareto, Natalia Daniele ^{[1, 2]} ; Costa, Mariana Conceicao ^[3] ; Almeida Meirelles, Antonio Jose ^[1] ; Pauly, Jerome ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Food Engn, Lab Extract Appl Thermodynam & Equilibrium, BR-13083862 Campinas, SP - Brazil

^[2] Lab Fluides Complexes & Leurs Reservoirs, UMR 5150, F-64013 Pau - France

^[3] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Limeira, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 60, n. 10, p. 2966-2973, OCT 2015.
• Citações Web of Science: 1

Resumo

The melting temperatures of four fatty alcohols, 1-dodecanol, 1-tetradecanol, 1-hexadecanol, and 1-octadecanol, were measured at atmospheric pressure using a mu DSC calorimeter and at higher pressures (up to 80 MPa) thanks to a dedicated microscope. The solid liquid phase diagrams of six binary mixtures formed by these fatty alcohols, namely, 1-dodecanol + 1-tetradecanol, 1-dodecanol + 1-hexadecanol, 1-dodecanol + 1octadecanol, 1-tetradecanol + 1-hexadecanol, 1-tetradecanol + 1-octadecanol, and 1-hexadecanol + 1-octadecanol systems, were also measured using high pressure microscopy within the range of 0.1 MPa to 80 MPa. In addition, the phase diagrams of the 1-dodecanol + 1-tetradecanol, 1-tetradecanol + 1-hexadecanol, and 1-hexadecanol + 1-octadecanol systems were also measured by DSC in order to compare the results obtained from the microscopy. On the basis of the experimental data, it could be concluded that the behavior of the phase diagrams is slightly affected by the pressure, even within very large pressure ranges such as the ones studied in this work. (AU)

• Processo FAPESP: 12/05027-1 - Equilíbrio sólido-líquido de compostos graxos e ponto de fulgor de biodiesel
• Beneficiário: Mariana Conceição da Costa
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Jovens Pesquisadores