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  Catalytic Copyrolysis of Lignocellulose and Polyethylene Blends over HBeta Zeolite

Morais, E. K. L., Jiménez-Sánchez, S., Hernando, H., Ochoa-Hernández, C., Pizarro, P., Araujo, A. S., et al. (2019). Catalytic Copyrolysis of Lignocellulose and Polyethylene Blends over HBeta Zeolite. Industrial and Engineering Chemistry Research, 58, 6243-6254. doi:10.1021/acs.iecr.8b06158.

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 Creators:
Morais, Ellen K. L.1, Author
Jiménez-Sánchez, Sergio2, Author
Hernando, Héctor2, 3, Author
Ochoa-Hernández, Cristina4, Author              
Pizarro, Patricia2, 3, Author
Araujo, Antonio S.1, Author
Serrano, David P.2, 3, Author
Affiliations:
1Institute of Chemistry, Federal University of Rio Grande do Norte, Natal, RN 59078-970, Brazil, ou_persistent22              
2Thermochemical Processes Unit, IMDEA Energy, 28935, Móstoles, Madrid, Spain, ou_persistent22              
3Chemical and Environmental Engineering Group, ESCET, Universidad Rey Juan Carlos, c/Tulipán s/n, 28933 Móstoles, Madrid, Spain, ou_persistent22              
4Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              

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 Abstract: Coprocessing of Eucalyptus woodchips (EU) and low-density polyethylene (LDPE) has been investigated using two HBeta zeolites as catalyst. The reactions were carried out in a two-step (thermal/catalytic) system, varying the catalyst to feed (C/F) ratio. A maximum in the yield of the liquid organic fraction (oil*) was observed for both HBeta samples at intermediate C/F ratios due to the occurrence of sequential cracking reactions, which were accompanied by a significant reduction of the oil* oxygen content. This finding, together with the results obtained when feeding pure EU and LDPE, denotes that remarkable synergistic effects occur during the coprocesssing of lignocelllulosic biomass and polyolefinic plastics over HBeta zeolite, mainly by Diels–Alder condensation between furans and light olefins. The presence of acid sites with moderate strength in the HBeta samples is an essential factor to obtain high oil* yields since it limits the extension of severe cracking reactions.

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Language(s): eng - English
 Dates: 2018-12-132019-03-292019-03-292019-04-24
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.iecr.8b06158
 Degree: -

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Title: Industrial and Engineering Chemistry Research
Source Genre: Journal
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Publ. Info: Washington, D.C : American Chemical Society
Pages: - Volume / Issue: 58 Sequence Number: - Start / End Page: 6243 - 6254 Identifier: ISSN: 0888-5885
CoNE: https://pure.mpg.de/cone/journals/resource/954928546246