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Advisor(s)
Abstract(s)
Lignin is one of the major components of the side-streams of the pulp and paper industries and of the emerging lignocellulosic biore neries. Find new strategies for lignin valorisation, apart from e vironmental issues, will contribute to close the lignocellulosic value-chain. In this context, this work will focus on the synthesis of polyols through oxypropylation and their subsequent incorporation into rigid polyurethane (RPU) foam formulations. Two E. globulus lignin streams were tested: (i) lignin isolated from industrial kraft liquor and (ii) depolymerized lignin resulting from an oxidation process developed at the LA LSRE-LCM to produce vanillin and syringaldehyde. This work is therefore part of the LA LSRE-LCM global strategy towards the consolidation of the integrated process to valorise lignin from the kraft pulp industry, which accounts with more than 25 years of experience.
Description
Keywords
Lignin valorisation integrated process Biopolyols Polyurethane rigid foams
Pedagogical Context
Citation
Fernandes, I.P.; Pinto, J.A.; Gomes, E.D.; Oliveira, C.F.; Pinto, P.C.R.; Mesquita, L.M.R.; Piloto, P.A.G.; Rodrigues, A.E.; Barreiro, M.F. (2016). Polyols and rigid polyurethane foams derived from lignin side-streams of the pulp and paper industry. In XXIII Tecnicelpa – International Forest, Pulp and Paper Conference. Porto, Portugal. ISBN 978-989-20-7003-2
Publisher
TECNICELPA - Associação Portuguesa dos Técnicos da Indústrias de Celulose e Papel