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Effect of membrane purification and concentration of sucrose in sugar beet molasses for the production of 5-hydroxymethylfurfural

Sjölin, Mikael LU ; Sayed, Mahmoud LU ; Thuvander, Johan LU ; Lipnizki, Frank LU orcid ; Hatti-Kaul, Rajni LU and Wallberg, Ola LU orcid (2022) In Chemical Engineering Research and Design 179. p.365-373
Abstract

Production of 5-hydroxymethylfurfural from sugar beet molasses as feed-stock should in theory be a straight-forward process: first, hydrolysis of sucrose, followed by dehydration of fructose, but is in reality challenging. The enzyme-catalysed sucrose hydrolysis is inhibited by impurities and the dehydration of fructose has low conversions. In this study, pretreatment of crude molasses through purification using membrane filtration was investigated. The pretreatment process was evaluated with respect to the sucrose hydrolysis reaction rates and for the downstream 5-hydroxymethylfurfural production. Results from the ultra-/nanofiltration experiments showed good filtration fluxes (11–34 L/m2 h bar), high flux recovery after... (More)

Production of 5-hydroxymethylfurfural from sugar beet molasses as feed-stock should in theory be a straight-forward process: first, hydrolysis of sucrose, followed by dehydration of fructose, but is in reality challenging. The enzyme-catalysed sucrose hydrolysis is inhibited by impurities and the dehydration of fructose has low conversions. In this study, pretreatment of crude molasses through purification using membrane filtration was investigated. The pretreatment process was evaluated with respect to the sucrose hydrolysis reaction rates and for the downstream 5-hydroxymethylfurfural production. Results from the ultra-/nanofiltration experiments showed good filtration fluxes (11–34 L/m2 h bar), high flux recovery after being heavily fouled (>80%) and ability to purify sucrose. The sucrose hydrolysis results showed an improved reaction rate for nanofiltered molasses (concentrate), while the ultrafiltration permeate showed no major difference from the crude molasses, indicating that the inhibitory compounds are of low molecular weight. Furthermore, the ultrafiltered molasses showed highly efficient fructose conversion (near 100%) and 5-hydroxymethylfurfural selectivity of 57% in the biphasic acid-catalysed dehydration, in contrast to only 49% fructose conversion in the crude molasses.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
5-Hydroxymethylfurfural, Hydrolysis inhibition, Membrane filtration, Purification, Sugar beet molasses, Sugar dehydration
in
Chemical Engineering Research and Design
volume
179
pages
9 pages
publisher
Institution of Chemical Engineers
external identifiers
  • scopus:85123882299
ISSN
0263-8762
DOI
10.1016/j.cherd.2022.01.007
project
Molasses Purification and Valorisation
STEPS – Sustainable Plastics and Transition Pathways, Phase 2
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022 The Author(s)
id
21f5e99d-8886-4bae-83b1-e8f4698590af
date added to LUP
2022-02-16 23:36:36
date last changed
2023-12-22 02:29:00
@article{21f5e99d-8886-4bae-83b1-e8f4698590af,
  abstract     = {{<p>Production of 5-hydroxymethylfurfural from sugar beet molasses as feed-stock should in theory be a straight-forward process: first, hydrolysis of sucrose, followed by dehydration of fructose, but is in reality challenging. The enzyme-catalysed sucrose hydrolysis is inhibited by impurities and the dehydration of fructose has low conversions. In this study, pretreatment of crude molasses through purification using membrane filtration was investigated. The pretreatment process was evaluated with respect to the sucrose hydrolysis reaction rates and for the downstream 5-hydroxymethylfurfural production. Results from the ultra-/nanofiltration experiments showed good filtration fluxes (11–34 L/m<sup>2</sup> h bar), high flux recovery after being heavily fouled (&gt;80%) and ability to purify sucrose. The sucrose hydrolysis results showed an improved reaction rate for nanofiltered molasses (concentrate), while the ultrafiltration permeate showed no major difference from the crude molasses, indicating that the inhibitory compounds are of low molecular weight. Furthermore, the ultrafiltered molasses showed highly efficient fructose conversion (near 100%) and 5-hydroxymethylfurfural selectivity of 57% in the biphasic acid-catalysed dehydration, in contrast to only 49% fructose conversion in the crude molasses.</p>}},
  author       = {{Sjölin, Mikael and Sayed, Mahmoud and Thuvander, Johan and Lipnizki, Frank and Hatti-Kaul, Rajni and Wallberg, Ola}},
  issn         = {{0263-8762}},
  keywords     = {{5-Hydroxymethylfurfural; Hydrolysis inhibition; Membrane filtration; Purification; Sugar beet molasses; Sugar dehydration}},
  language     = {{eng}},
  pages        = {{365--373}},
  publisher    = {{Institution of Chemical Engineers}},
  series       = {{Chemical Engineering Research and Design}},
  title        = {{Effect of membrane purification and concentration of sucrose in sugar beet molasses for the production of 5-hydroxymethylfurfural}},
  url          = {{http://dx.doi.org/10.1016/j.cherd.2022.01.007}},
  doi          = {{10.1016/j.cherd.2022.01.007}},
  volume       = {{179}},
  year         = {{2022}},
}