Skip to Main Content
Biorefinery lignosulfonates from sulfite-pretreated softwoods as dispersant for graphiteAuthor(s): Yanlin Qin; Lixuan Yu; Ruchun Wu; Dongjie Yang; Xueqing Qiu; Junyong Zhu
Source: ACS Sustainable Chemistry & Engineering, Vol. 4(4). pp. 2200-2205
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
Download Publication (4.0 MB)
DescriptionTwo biorefinery lignosulfonates (LSs), Ca-LS-DF and Na-LS-LP were, respectively, isolated from pilot-scale sulfite-pretreated spent liquor of lodgepole pine and fermentation residue of Douglas-fir harvest forest residue. The molecular weights of Na-LS-LP and Ca-LS-DF were approximately 9 000 and 11 000 Da, respectively. The two LSs were applied as dispersant for graphite in aqueous suspensions. The dispersion stability was evaluated by a scanning electron microscope and Turbiscan Lab Expert. LS performance in modifying graphite was better than that of a commercial dispersant Reax-85A as indicated by the Turbiscan TSI values, zeta potential of suspension particles, and SEM imaging. The practical importance of this study lies in the fact that the pilot-scale sulfite pretreatments that produced the two LSs also produced excellent bioethanol yields at high titer without detoxification and washing, suggesting the LSs are a true value-added coproduct for high yield biofuel production.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationQin, Yanlin; Yu, Lixuan; Wu, Ruchun; Yang, Dongjie; Qiu, Xueqing; Zhu, J.Y. 2016. Biorefinery lignosulfonates from sulfite-pretreated softwoods as dispersant for graphite. ACS Sustainable Chemistry and Engineering. 4(4): 2200-2205.
KeywordsLignosulfonate, Graphite, Dispersion stability, Lignin-coproducts, Biorefinery
- Molecular structure of sodium lignosulfonate from different sources and their properties as dispersant of TiO2 slurry
- Comparisons of high titer ethanol production and lignosulfonate properties by SPORL pretreatment of lodgepole pine at two temperatures
- Lignosulfonate To Enhance Enzymatic Saccharification of Lignocelluloses: Role of Molecular Weight and Substrate Lignin
XML: View XML