Axial dispersion and CFD models for the extraction of levulinic acid from dilute aqueous solution in a Kühni column with 2-methyltetrahydrofuran solvent

Autor: Juha Kaunisto, Karri Penttilä, Lasse Murtomäki, Antero Laitinen, Mikko Manninen, Jouni Syrjanen

Publikováno v: Laitinen, A T, Penttilä, K J T, Manninen, M T, Syrjänen, J K, Kaunisto, J M & Murtomäki, L S 2019, ' Axial dispersion and CFD models for the extraction of levulinic acid from dilute aqueous solution in a Kühni column with 2-methyltetrahydrofuran solvent ', Chemical Engineering Research and Design, vol. 146, pp. 518-527 . https://doi.org/10.1016/j.cherd.2019.04.018

1D axial dispersion and 3D CFD models for the extraction of levulinic acid from dilute aqueous solution by applying 2-methyltetrahydrofuran as a solvent are presented. The models are validated by comparison with the measured levulinic acid concentrat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911480a4bffa85244d7cc5e69bd1f649
https://doi.org/10.1016/j.cherd.2019.04.018

Unusual Nazarov Cyclization in Near-Critical Water

Autor: Olli Aaltonen, Jari Yli-Kauhaluoma, Martti Alkio, Juha Kaunisto, Tuomo Leikoski

Publikováno v: Leikoski, T, Kaunisto, J, Alkio, M, Aaltonen, O & Yli-Kauhaluoma, J 2005, ' Unusual Nazarov cyclization in near-critical water ', Organic Process Research and Development, vol. 9, no. 5, pp. 629-633 . https://doi.org/10.1021/op050075t

The Nazarov reaction of trans,trans-dibenzylidene acetone in near-critical water with or without additional carbon dioxide produces 2,3-diphenyl-2-cyclopentenone instead of the conventional Nazarov product, 3,4-disubstituted 2-cyclopentenone. The use

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f77f6bba5f919f06d75f0c7ba163e2c2
https://doi.org/10.1021/op050075t

Supercritical fluid extraction of 1-butanol from aqueous solutions

Autor: Antero Laitinen, Juha Kaunisto

Publikováno v: Laitinen, A & Kaunisto, J 1999, ' Supercritical fluid extraction of 1-butanol from aqueous solutions ', Journal of Supercritical Fluids, vol. 15, no. 3, pp. 245-252 . https://doi.org/10.1016/S0896-8446(99)00011-X

The purpose of the present work was to study the extraction of 1-butanol from aqueous solutions using supercritical carbon dioxide at 100 bar and 40°C as a solvent. Experimental studies were performed using a 35 mm diameter mechanically agitated Old

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c911b40ce7e0b11e3c89bc81a233729
https://doi.org/10.1016/s0896-8446(99)00011-x

Hydrodynamics and mass transfer in a rotating disk supercritical extraction column

Autor: Antero Laitinen, Juha Kaunisto

Publikováno v: Laitinen, A & Kaunisto, J 1998, ' Hydrodynamics and mass transfer in a rotating disk supercritical extraction column ', Industrial & Engineering Chemistry Research, vol. 37, no. 6, pp. 2529-2534 . https://doi.org/10.1021/ie970658u

A novel rotating disk column (RDC) designed for high-pressure extraction was tested by extracting ethanol from aqueous solutions using supercritical carbon dioxide at 10 MPa and 313 K as a solvent. Mass-transfer efficiencies and hydraulic characteris

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79eccecdf8136aab9c81ab27105c5025
https://cris.vtt.fi/en/publications/4df733ce-ffd8-444f-9d22-2cdad8611739