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De Santi V.,University of Perugia | Cardellini F.,University of Perugia | Brinchi L.,Centro Of Ricerca Sulle Biomasse | Germani R.,University of Perugia
Tetrahedron Letters | Year: 2012

New halogen-free Brønsted acidic deep eutectic solvents (DES) have been prepared by mixing new quaternary ammonium methanesulfonate salts with p-toluenesulfonic acid (PTSA). They have been used as dual solvent-catalyst for esterification of several carboxylic acids with different alcohols with a reagent molar ratio of 1:1. The method is mild, safe, and simple. Ease of recovery and reusability of DES with high activity makes this method efficient and eco-friendly. The tunability of DES properties, attained by changes in the cation, was performed in order to achieve various esters in good yields. © 2012 Elsevier Ltd. All rights reserved.

Cotana F.,Centro Of Ricerca Sulle Biomasse | Messineo A.,Kore University of Enna | Petrozzi A.,Centro Of Ricerca Sulle Biomasse | Coccia V.,Centro Of Ricerca Sulle Biomasse | And 2 more authors.
Sustainability (Switzerland) | Year: 2014

The Biomass Research Centre, section of CIRIAF, has recently developed a biomass boiler (300kW thermal powered), fed by the poultry manure collected in a nearby livestock. All the thermal requirements of the livestock will be covered by the heat produced by gas combustion in the gasifier boiler. Within the activities carried out by the research project ENERPOLL (Energy Valorization of Poultry Manure in a Thermal Power Plant), funded by the Italian Ministry of Agriculture and Forestry, this paper aims at studying an upgrade version of the existing thermal plant, investigating and analyzing the possible applications for electricity production recovering the exceeding thermal energy. A comparison of Organic Rankine Cycle turbines and Stirling engines, to produce electricity from gasified poultry waste, is proposed, evaluating technical and economic parameters, considering actual incentives on renewable produced electricity. © 2014 by the authors.

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