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Dissolving Kraft Pulp Production and Xylooligosaccharide Coproduction: Effect of Pre-Hydrolysis Conditions
[Image: see text] Due to cotton’s declining sustainability, more lignocellulosic materials are being used to produce dissolving pulp for textile applications. Pre-hydrolysis kraft is one of the main processes used to produce this material. Pre-hydrolysis under conventional conditions removes most of...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10116639/ https://www.ncbi.nlm.nih.gov/pubmed/37091417 http://dx.doi.org/10.1021/acsomega.2c07594 |
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author | Cunha, André E. P. Simões, Rogério M. S. |
author_facet | Cunha, André E. P. Simões, Rogério M. S. |
author_sort | Cunha, André E. P. |
collection | PubMed |
description | [Image: see text] Due to cotton’s declining sustainability, more lignocellulosic materials are being used to produce dissolving pulp for textile applications. Pre-hydrolysis kraft is one of the main processes used to produce this material. Pre-hydrolysis under conventional conditions removes most of the hemicelluloses, but the majority end up as xylose and furfural, traditionally burned in a recovery boiler. The xylooligosaccharides (XOS), derived from hemicelluloses are a specialty product and can be recovered but requires adapted operative conditions. Thus, the objective was to recover XOS and evaluate the effect of pre-hydrolysis conditions on the final pulp characteristics. A flow-through reactor (FTR) was used to study the pre-hydrolysis, which allowed for modification of the retention time of the xylan in the free liquor after extraction from wood. The results have shown that by changing the fluid retention time in the pre-hydrolysis, the proportion of XOS/xylose/furfural recovered can be strongly changed. The hemicellulose content of the dissolving pulp decreased from 6.8% to about 2.6% using the FTR pretreatment. |
format | Online Article Text |
id | pubmed-10116639 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-101166392023-04-21 Dissolving Kraft Pulp Production and Xylooligosaccharide Coproduction: Effect of Pre-Hydrolysis Conditions Cunha, André E. P. Simões, Rogério M. S. ACS Omega [Image: see text] Due to cotton’s declining sustainability, more lignocellulosic materials are being used to produce dissolving pulp for textile applications. Pre-hydrolysis kraft is one of the main processes used to produce this material. Pre-hydrolysis under conventional conditions removes most of the hemicelluloses, but the majority end up as xylose and furfural, traditionally burned in a recovery boiler. The xylooligosaccharides (XOS), derived from hemicelluloses are a specialty product and can be recovered but requires adapted operative conditions. Thus, the objective was to recover XOS and evaluate the effect of pre-hydrolysis conditions on the final pulp characteristics. A flow-through reactor (FTR) was used to study the pre-hydrolysis, which allowed for modification of the retention time of the xylan in the free liquor after extraction from wood. The results have shown that by changing the fluid retention time in the pre-hydrolysis, the proportion of XOS/xylose/furfural recovered can be strongly changed. The hemicellulose content of the dissolving pulp decreased from 6.8% to about 2.6% using the FTR pretreatment. American Chemical Society 2023-04-03 /pmc/articles/PMC10116639/ /pubmed/37091417 http://dx.doi.org/10.1021/acsomega.2c07594 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Cunha, André E. P. Simões, Rogério M. S. Dissolving Kraft Pulp Production and Xylooligosaccharide Coproduction: Effect of Pre-Hydrolysis Conditions |
title | Dissolving Kraft Pulp Production and Xylooligosaccharide
Coproduction: Effect of Pre-Hydrolysis Conditions |
title_full | Dissolving Kraft Pulp Production and Xylooligosaccharide
Coproduction: Effect of Pre-Hydrolysis Conditions |
title_fullStr | Dissolving Kraft Pulp Production and Xylooligosaccharide
Coproduction: Effect of Pre-Hydrolysis Conditions |
title_full_unstemmed | Dissolving Kraft Pulp Production and Xylooligosaccharide
Coproduction: Effect of Pre-Hydrolysis Conditions |
title_short | Dissolving Kraft Pulp Production and Xylooligosaccharide
Coproduction: Effect of Pre-Hydrolysis Conditions |
title_sort | dissolving kraft pulp production and xylooligosaccharide
coproduction: effect of pre-hydrolysis conditions |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10116639/ https://www.ncbi.nlm.nih.gov/pubmed/37091417 http://dx.doi.org/10.1021/acsomega.2c07594 |
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