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A novel bio-based w...
A novel bio-based water reducer for concrete application : Facile process and techno-economic analysis of xylonate bioproduction from lignocellulosic residues
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- Han, Jian (author)
- Nanjing Forestry University
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- Wang, Jiaqing (author)
- Nanjing Forestry University
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- Pyo, Sang Hyun (author)
- Lund University,Lunds universitet,Bioteknik,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biotechnology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Wei, Yang (author)
- Nanjing Forestry University
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- Huang, Kaijian (author)
- Nanjing Forestry University
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- Xu, Yong (author)
- Nanjing Forestry University
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Journal of Cleaner Production. - 0959-6526. ; 460
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The xylonate was bioproduced directly from lignocellulosic residues, and the application properties of crude xylonate powder were investigated with a promising potential as a bio-based concrete water reducer. The overall integrated process was evaluated on the view of mass balance and techno-economic analysis using Aspen Plus modeling. 56 g/L of calcium xylonate (XA-Ca) can be obtained within 8 h from acidic corncob hydrolysate (ACH) at a 100 % yield with the whole-cell catalysis of Gluconobacter oxydans. At the addition of 0.2 wt% in the dry concrete content, XA-Ca powder and sodium xylonate powder prepared from pure xylose and ACH could reduce water used in concrete by 15 %, 14 %, 13 %, and 13 %, respectively. XA-Ca from ACH led to a 33% increase in concrete compressive strength and a 24% increase in concrete flexural strength at day 7 compared to the blank group. The techno-economic analysis showed the minimum XA-Ca powder price to be $ 0.806/kg which can be economically feasible. This study provides a practical and economical process prototype for the industrial concrete water reducer application of novel bio-based xylonate produced from lignocellulosic residues.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
Keyword
- Aspen plus modeling
- Bio-based water reducer
- Lignocellulosic residues
- Whole-cell catalysis
- Xylonate
Publication and Content Type
- art (subject category)
- ref (subject category)
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