Binary interaction parameters from reacting mixture data. Supercritical biodiesel process with CO2 as cosolvent

Autor: Abel Valverde, Luigi Osmieri, F. Recasens

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

A method is presented for the calculation of binary interaction parameters from reacting mixture data. The process studied is the supercritical methanol transesterification of triolein with CO2 as cosolvent. The reaction proceeds through 3 reversible

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ec01e6f6dc9dba164b30a4160832c3
https://doi.org/10.1016/j.supflu.2018.05.023

Hybrid nonlinear autoregressive neural network—Weibull statistical model applied to the supercritical extraction of lanolin from raw wool

Autor: Jesus Alvarez-Florez, F. Recasens, Abel Valverde

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Supercritical extraction of lanolin from raw wool with modified CO2 (5% ethanol) at temperatures above the melting point of lanolin (T = 36–42 oC) is difficult to model because of the multicomponent diffusion in the liquid layer. In this work, a ne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2614c11e6c7ac229524e8781b7037158
https://doi.org/10.1007/s42452-020-03475-7

Extraction of solid lanoline from raw wool with near-critical ethanol-modified CO2 —A mass transfer model

Autor: Abel Valverde, F. Recasens

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

This study deals with the modeling of the extraction of solid lanoline from raw wool under near-critical conditions using 5% ethanol in CO2, using our previous experimental data. A mass-transfer model is developed to explain the extraction results at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4130252a8b2b06e0812a7953b7dc8e18
https://hdl.handle.net/2117/126478

Effect of reactor type on trans fatty acid and stearate formation in fat hydrogenation in SCF solvent

Autor: F. Recasens, M.J. Mayorga, D. Cuevas, C. Ahrweiller

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Hydrogenation of vegetable fats is an important biomolecule modification process, traditionally carried out in a slurry reactor at low pressure (2–6 bar). Here, the hydrogenation of sunflower oil in supercritical propane and dimethyl ether catalyse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7226e155570fe08639c693df14e93c8e
https://doi.org/10.1016/j.supflu.2008.09.024

CFD studies on particle-to-fluid mass and heat transfer in packed beds: Free convection effects in supercritical fluids

Autor: M.A. Larrayoz, F. Recasens, Alfredo Guardo, Xavier Escaler, Miguel G. Coussirat

Publikováno v: Chemical Engineering Science. 62:5503-5511

Free convection effects of heat and mass transfer are of prime importance when modeling the behavior of supercritical fluids in packed bed reaction equipment and in solid extractors. Density gradients, caused by temperature or composition variations,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcfc849d9a66448166118ce39a1cb7f8
https://doi.org/10.1016/j.ces.2007.02.040