PROCESSING METHOD FOR FRACTIONALLY CONVERTING PENNISETUM HYDRIDUM INTO FUEL ETHANOL WITH CO-PRODUCTION OF ELECTRICITY GENERATION AND PAPER PULP
    9.
    发明申请
    PROCESSING METHOD FOR FRACTIONALLY CONVERTING PENNISETUM HYDRIDUM INTO FUEL ETHANOL WITH CO-PRODUCTION OF ELECTRICITY GENERATION AND PAPER PULP 审中-公开
    用于将电解质和纸浆共同生产的硫酸氢铵转化为燃料乙醇的处理方法

    公开(公告)号:US20110104773A1

    公开(公告)日:2011-05-05

    申请号:US12312201

    申请日:2008-02-15

    IPC分类号: C12P7/06

    摘要: The invention relates to a method for fractionally converting pennisetum hydridum into fuel ethanol with co-production of electricity generation and paper pulp, which comprises subjecting the pennisetum hydridum having been cut into segments to steam explosion treatment by utilizing a steam explosion device to obtain a steam explosion product, and said method is characterized in that it comprises the steps of: washing the steam explosion product with water to obtain fibers and water washing liquid containing a degraded hemicellulose, and separating and purifying the water washing liquid to obtain an xylo-oligosaccharide; fractionally teasing the fibers, and subjecting the obtained long fibers to an ethanol self-catalyzed pulping and then a bleaching treatment to obtain a paper pulp, and after recovering ethanol, obtaining an alcohol-soluble lignin by separation; preparing cellulase by a solid state fermentation, that is, taking the short fibers obtained by fractionally teasing as a fermentation substrate of Trichoderma viride to prepare a solid cellulase; mixing the short fibers, the solid cellulase and yeast to perform a simultaneous saccharification fermentation for obtaining the fuel ethanol and a fermentation residue, and producing CO2 by the fermentation; and drying the fermentation residue to prepare a biomass fuel for electricity generation. The method of the invention can realize a high efficient comprehensive utilization of the pennisetum hydridum resource.

    摘要翻译: 本发明涉及一种利用蒸汽爆炸装置共同生产发电和纸浆将狼尾草分为转化为燃料乙醇的方法,其中包括将经切割的狼尾草进行蒸汽爆炸处理,以获得蒸汽 所述方法的特征在于包括以下步骤:用水洗涤蒸汽爆炸产物以获得含有降解的半纤维素的纤维和水洗液,并分离和纯化水洗液以获得低聚木糖; 将所得长纤维进行乙醇自催化制浆,然后进行漂白处理以获得纸浆,并在回收乙醇后通过分离获得醇可溶性木质素; 通过固态发酵制备纤维素酶,即通过将通过分层挑选获得的短纤维作为绿色木霉的发酵底物制备固体纤维素酶; 混合短纤维,固体纤维素酶和酵母以进行同时糖化发酵以获得燃料乙醇和发酵残渣,并通过发酵产生CO 2; 并干燥发酵残渣以制备用于发电的生物质燃料。 本发明方法可以实现狼尾草资源的高效综合利用。