Effect of membrane purification and concentration of sucrose in sugar beet molasses for the production of 5-hydroxymethylfurfural
(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
- Sjölin, Mikael LU ; Sayed, Mahmoud LU ; Thuvander, Johan LU ; Lipnizki, Frank LU ; Hatti-Kaul, Rajni LU and Wallberg, Ola LU
- organization
- publishing date
- 2022-03
- 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 (>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}}, }