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  • characterization of the pretreatment liquor of biomass from the perennial grass, eulaliopsis binata, for the production of dissolving pulp

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 547
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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.

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