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    • 5. 发明申请
    • METHOD AND APPARATUS FOR PRODUCING ORGANIC ACIDS
    • 生产有机酸的方法和装置
    • WO1998004729A2
    • 1998-02-05
    • PCT/US1997013356
    • 1997-07-30
    • THE TEXAS A & M UNIVERSITY SYSTEM
    • THE TEXAS A & M UNIVERSITY SYSTEMHOLTZAPPLE, MarkDAVISON, RichardLOESCHER, MitchROSS, Michael, K.LOEFFLER, Charles
    • C12P07/40
    • C12P7/40C12M21/04C12M41/32Y02E50/343Y10S435/813Y10S435/819
    • A continuous process and apparatus for preparing organic acids and their salts from biomass. Biomass flows from a region of fresh biomass and high acid and acid salt concentration to a region of digested biomass and low acid and acid salt concentration in a fermentation apparatus under anaerobic conditions. Organic acids and acid salts produced by the process of the present invention are volatile fatty acids such as acetic, butyric and propionic acids and their salts such as calcium acetate, calcium propionate, and calcium butyrate. The apparatus of the present invention contains at least two fermentation reactors in series to increase the biomass residence time in the reactors. The fermentation reactors of the present invention are imbedded in the ground with earthen berms as support for sides having three layers. The core of the reactors are covered with a flexible covering to maintain an anaerobic environment.
    • 用于从生物质中制备有机酸及其盐的连续方法和装置。 生物质在新鲜生物质和高酸和酸性盐浓度的区域流动到消化生物量的一个区域,在厌氧条件下在发酵设备中流出低酸和酸盐浓度。 通过本发明的方法生产的有机酸和酸盐是挥发性脂肪酸,例如乙酸,丁酸和丙酸及其盐,例如乙酸钙,丙酸钙和丁酸钙。 本发明的装置包含至少两个串联的发酵反应器,以增加在反应器中的生物质停留时间。 将本发明的发酵反应器作为对具有三层的侧面的支撑物,以土层作为支撑物埋在地下。 反应堆的核心覆盖着柔性覆盖物,以保持厌氧环境。
    • 6. 发明申请
    • METHODS AND SYSTEMS FOR PRETREATMENT AND PROCESSING OF BIOMASS
    • 生物量预处理和处理方法与系统
    • WO2004041995A1
    • 2004-05-21
    • PCT/US2003/034942
    • 2003-11-03
    • THE TEXAS A & M UNIVERSITY SYSTEM
    • HOLTZAPPLE, MarkDAVISON, RichardLOWERY, Lee, Jr.GRANDA, Cesar
    • C12M1/16
    • D21C5/005C05F5/002C05F17/0036C05F17/0276C12P1/00D21C3/02D21C3/026D21C5/00D21H11/12Y02A40/21Y02P20/145Y02W30/43C05F9/04
    • According to one embodiment of the invention, a system (100) for processing biomass includes a water-impermeable bottom liner, a gravel layer (104) supported by the bottom liner (102), a drain pipe (106) disposed within the gravel layer (104), a biomass input device (108) operable to deliver biomass over the gravel layer (104) to form a biomass pile, a lime input device (110) operable to deliver lime to the biomass for pretreating the biomass, a distribution pipe (114) elevated above the gravel layer (104), and a pump (116) operable to circulate water through the biomass pile by delivering water to the distribution pipe (114) and receiving water from the drain pipe (106) after it has traveled through the biomass pile. According to another embodiment, a method for biomass pretreatment with alkali, conducted at ambient pressure for approximately 4-16 weeks at temperatures ranging from approximately 25°C to 95°C. Biomass may be lignocellulosic biomass and may be rendered suitable for enzymatic digestion or pulp production.
    • 根据本发明的一个实施例,用于处理生物质的系统(100)包括不透水底层衬垫,由底衬(102)支撑的砾石层(104),设置在砾石层内的排水管(106) (104),生物质输入装置(108),其可操作以在所述砾石层(104)上输送生物质以形成生物质堆,石灰输入装置(110),其可操作地将石灰输送到所述生物质以预处理所述生物质;分配管 (114),其在所述砾石层(104)上方升高;以及泵(116),其可操作以通过将水输送到所述分配管(114)并在其行进之后从所述排水管(106)接收水来使水循环通过所述生物质堆 通过生物质堆。 根据另一个实施方案,使用碱的生物量预处理方法,在约25℃至95℃的温度范围内,在环境压力下进行约4-16周。 生物质可以是木质纤维素生物质,并且可以适合于酶消化或纸浆生产。