期刊
BIORESOURCE TECHNOLOGY
卷 232, 期 -, 页码 152-158出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.02.008
关键词
Biomass conversion; Cellulosic materials; Cotton; Paper; Sorbitol
资金
- Associate Laboratory LSRE-LCM - FEDER through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (POCI) [POCI-01-0145-FEDER-006984]
- FCT - Fundacao para a Ciencia e a Tecnologia
- FCT [SFRH/BD/86580/2012]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/86580/2012] Funding Source: FCT
Cotton wool, cotton textile, tissue paper and printing paper, all potential waste cellulosic materials, were directly converted to sorbitol using a Ru/CNT catalyst in the presence of H-2 and using only water as solvent, without any acids. Conversions up to 38% were attained for the raw substrates, with sorbitol yields below 10%. Ball-milling of the materials disrupted their crystallinity, allowing reaching 100% conversion of cotton wool, cotton textile and tissue paper after 4 h, with sorbitol yields around 50%. Mix-milling these materials with the catalyst greatly enhanced their conversion rate, and the materials were efficiently converted to sorbitol with a yield around 50% in 2 h. However, ball-and mix-milled printing paper presented a conversion of only 50% after 5 h, with sorbitol yields of 7%. Amounts of sorbitol of 0.525, 0.511 and 0.559 g could be obtained from 1 g of cotton wool, cotton textile and tissue paper, respectively. (C) 2017 Elsevier Ltd. All rights reserved.
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