dc.contributor.author | Paniagua, Marta | |
dc.contributor.author | Cuevas, Florentina | |
dc.contributor.author | Morales, Gabriel | |
dc.contributor.author | Melero, Juan A. | |
dc.date.accessioned | 2022-04-21T08:18:42Z | |
dc.date.available | 2022-04-21T08:18:42Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Sulfonic Mesostructured SBA-15 Silicas for the Solvent-Free Production of Bio-Jet Fuel Precursors via Aldol Dimerization of Levulinic Acid Marta Paniagua, Florentina Cuevas, Gabriel Morales, and Juan A. Melero ACS Sustainable Chemistry & Engineering 2021 9 (17), 5952-5962 DOI: 10.1021/acssuschemeng.1c00378 | es |
dc.identifier.issn | 2168-0485 | |
dc.identifier.uri | http://hdl.handle.net/10115/19092 | |
dc.description.abstract | Sulfonic acid-functionalized mesostructured silicas
have been evaluated in the solvent-free aldol dimerization of
biomass-derived levulinic acid into bio-jet fuel precursors. These
compounds produce branched alkanes in a subsequent hydrodeoxygenation process, with suitable properties for being a
renewable alternative to conventional fossil aviation fuels. The
combination of activity and selectivity toward the desired
condensation products achieved over sulfonic acid-functionalized
SBA-15 materials is superior to those displayed by other
commercial solid acid catalysts. Enhanced textural properties
provided by the mesoporous SBA-15 support contribute to such
improved catalytic performance. The strength and loading of the
mesoporous silica-supported sulfonic acid moieties are also
important factors affecting the catalytic performance of the materials. Reaction conditions (temperature, time, and catalyst
loading) have been optimized for propylsulfonic acid-functionalized mesostructured silica (Pr-SBA-15) by means of a response
surface methodology, leading to a maximum yield to levulinic acid dimerization products of 58.4% (145 °C, 0.15 g of catalyst, 24 h,
no solvent). Under these reaction conditions, conversion of levulinic acid is 61.1%, indicating excellent selectivity toward bio-jet fuel
precursors. A small catalytic activity decay has been detected in reutilization experiments, attributed to the formation of organic
deposits onto the catalyst surface. A mild acid washing of the catalyst allowed a significant recovery of the initial activity. | es |
dc.language.iso | eng | es |
dc.publisher | ACS | es |
dc.rights | Atribución 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | bio-jet fuel | es |
dc.subject | lignocellulose | es |
dc.subject | levulinic acid | es |
dc.subject | aldol dimerization | es |
dc.subject | sulfonic acid | es |
dc.subject | mesoporous silica | es |
dc.title | Sulfonic Mesostructured SBA-15 Silicas for the Solvent-Free Production of Bio-Jet Fuel Precursors via Aldol Dimerization of Levulinic Acid | es |
dc.type | info:eu-repo/semantics/article | es |
dc.identifier.doi | 10.1021/acssuschemeng.1c00378 | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |