PREPARATION OF MACROPOROUS CARBON FOAMS FROM LIGNOSULFONATE BY SOFT PYROLYSIS AND ITS APPLICATION IN FREE COOLING

DOURGES, M-A.; GLOUANNEC, P.; PALAZZOLO, M. A.

Los Cocos

Simposio; XII Simposio Argentino de Polímeros (SAP 2017); 2017

Sociedad Argentina de Polímeros

PREPARATION OF MACROPOROUS CARBON FOAMS FROMLIGNOSULFONATE BY SOFT PYROLYSIS AND ITS APPLICATION IN FREE COOLINGMartín A. Palazzolo (1,2)*, Marie-Anne Dourges (1), Patrick Glouannec (3), and Hervé Deleuze (1)(1) CNRS, Institut des Sciences Moléculaires,Université de Bordeaux, Talence (33400), France. (2) Institutode Investigaciones en Tecnología Química, Universidad Nacional de San Luis,CONICET, Laboratorio de Química Orgánica, FQByF, San Luis (5700), Argentina.(3) CNRS, Institut de Recherche Dupuy de Lôme,Université de Bretagne Sud, Lorient (56321), France.*email:mapalazzolo@unsl.edu.arABSTRACTDueto both availability and environmental concerns, there is an increasinginterest in pushing forward the shift from a fossil-based economy to abio-based one. The lignocellulosic biomass meets the criteria so as to serve asfeedstock for the development of sustainable processes leading to energy, fuelsand chemicals under the so-called biorefinery concept [1]. The paper mills area case example, since they allow harnessing almost entirely the startingmaterial. However, the lignin streams ?generated in huge amounts in thebleaching step to yield crystal-clear cellulose- are usually burnt to provideheat for the pulping plant and further discarded when this need is covered.A fewyears ago, several investigations on the use of phase-change materials (PCMs)as the main components in free cooling systems emerged to offer superioralternatives to energy-demanding, environmentally-unfriendly current air-conditionedequipments [2]. Nevertheless, major issues arise when selecting a suitablematrix to encapsulate the afore-mentioned PCMs ?from its actual materialperformance to its greenness and cost- [3]. Thus, several improvements areneeded in this field to overcome these limitations.Inthis work, we present the production of macroporous carbon foams by the softpyrolysis of an inexpensive, widely available lignin source, and theirapplication as PCM containers for free cooling as an original approach aimingto promote the valorization of this renewable polymer by preparing specialtyproducts. references [1]      M. V.Galkin, J. S. M. Samec, "Lignin Valorization through CatalyticLignocellulose Fractionation: A Fundamental Platform for the FutureBiorefinery", ChemSusChem, vol.9, no. 13, 1544-1558, 2016.[2]      V. A. A.Raj, R. Velraj, "Review on free cooling of buildings using phase changematerials", Renewable andSustainable Energy Reviews, vol. 14, pp. 2819-2829, 2010.[3]      S. S.Chandel, T. Agarwal, "Review of current state of research on energystorage, toxicity, health hazards and commercialization of phase changingmaterials", Renewable and Sustainable Energy Reviews, vol. 67, pp.581-596, 2017. TOPIC:T10. presentaTIOn(oral o poster): O (oral).