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Techno-economic analysis of biomass value-added processing informed by pilot scale de-ashing of paper sludge feedstock.
- Source :
-
Bioresource Technology . Jun2024, Vol. 401, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- • Novel application of sidehill screen to remove ash from paper sludge. • Study of screening parameters yielded high pilot scale performance. • Process simulation of plant scale valorization demonstrated technical feasibility. • Techno-economic analysis yielded financial feasibility for sludge valorization. Paper sludge biomass represents an underutilized feedstock rich in pulped and processed cellulose which is currently a waste stream with significant disposal cost to industry for landfilling services. Effective fractionation of the cellulose from paper sludge presents an opportunity to yield cellulose as feedstock for value-added processes. A novel approach to cellulose fractionation is the sidehill screening system, herein studied at the pilot-plant scale. Composition analysis determined ash removal and carbohydrate retention of both sidehill and high-performance benchtop screening systems. Sidehill screening resulted in greater carbohydrates retention relative to benchtop screening (90% vs 66%) and similar ash removal (95% vs 98%). Techno-economic analysis for production of sugar syrup yielded a minimum selling price of $331/metric ton of sugar syrup including disposal savings, significantly less than a commercial sugar syrup without fractionation. Sensitivity analysis showed that screening conditions played a significant role in economic feasibility for cellulosic yield and downstream processes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 401
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 177203382
- Full Text :
- https://doi.org/10.1016/j.biortech.2024.130744