title: Characterization of the pretreatment liquor of biomass from the perennial grass, Eulaliopsis binata, for the production of dissolving pulp.
abstract: To test a biorefinery concept, the non-wood biomass of Eulaliopsis binata was treated with dilute acid prior to dissolving pulp production at 160 °C for 30 min. The pretreatment liquor (PL) contained 42.04 g/L sugars, of which 81.46% was xylose and only 2.91% was glucose. Furfural and hydroxymethylfurfural in PL were 0.37% and 0.06%, respectively. Chemical or enzymatic hydrolysis of carbohydrates could be omitted when producing bioethanol with PL because 87.32% of the total sugars were in the form of monosaccharides. Membrane filtration with a molecular-weight cut-off of 100 Da was employed to concentrate the sugars and a concentration of 170.49 g/L was achieved. A method of zero release of the PL is proposed, which consists of ethanol production from the concentrated PL and recycling the permeate stream into the pretreatment process.
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China.
authors.forename: Jiebin
authors.initials: J
authors.lastname: Tang
authors.forename: Kefu
authors.initials: K
authors.lastname: Chen
authors.forename: Fang
authors.initials: F
authors.lastname: Huang
authors.forename: Jun
authors.initials: J
authors.lastname: xu
authors.forename: Jun
authors.initials: J
authors.lastname: Li
mesh_terms: D018533:Biomass; D010209:Paper; D010936:Plant Extracts / Q000737:chemistry*; D006109:Poaceae / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*; D012997:Solvents; D013227:Steam; D013464:Sulfuric Acids / Q000737:chemistry*
chemical_list: D010936:Plant Extracts; D011134:Polysaccharides; D012997:Solvents; D013227:Steam; D013464:Sulfuric Acids; C007916:hemicellulose; C033158:sulfuric acid