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    • 10. 发明申请
    • METHOD FOR REDUCING METHANE SLACK WHEN STARTING AND STOPPING BIOGAS FERMENTERS AND BIOGAS SYSTEM FOR CARRYING OUT THE METHOD
    • 在启动和关闭生物积分器和生物气设备时处理方法滑移的方法
    • WO2010063709A3
    • 2010-10-21
    • PCT/EP2009066133
    • 2009-12-01
    • BEKON ENERGY TECHNOLOGIES GMBHLUTZ PETER
    • LUTZ PETER
    • C12M1/107C10L3/10C12P5/02
    • C10L3/08C12M21/04C12M21/16C12M23/36C12M29/24C12M41/34C12M47/18C12P5/023Y02E50/343
    • The invention relates to a method for reducing methane slack when operating biogas systems comprising at least one biogas fermenter and to a biogas system for carrying out the method. When starting up a freshly charged fermenter, the methane portion in the biogas produced is initially so low and the fractions of carbon dioxide and nitrogen are so high that direct use of the biogas in a combined heat and power (CHP) plant is not possible. During this startup phase of a freshly charged fermenter, the biogas generated with the low methane fraction is therefore discharged directly to the atmosphere or is flared off if the methane fraction is higher. This results in the non-use of a portion of the methane produced, methane slack. In order to prevent this, the biogas with the low methane fraction produced in the startup phase is fed to a gas treatment unit in which non-methane components of the gas mixture are partially separated and the remaining gas mixture with a higher methane fraction is returned to the biogas fermenter until the methane fraction is high enough.
    • 公开了一种用于减少沼气工厂运行中的甲烷滑移的方法,所述沼气工厂具有至少一个沼气发酵罐和沼气工厂用于执行该过程。 当在产生的生物气启动甲烷的新鲜发酵罐装载比例最初是如此之低和二氧化碳和氮气的比例是如此之高,在一个热电联产电厂的直接使用的沼气是不可能的。 在新鲜发酵罐的启动阶段,低甲烷含量的沼气直接排放到大气中,或在更高的甲烷含量下燃烧。 这意味着部分产生的甲烷未被使用 - 甲烷滑脱。 为了避免这种情况,在启动时产生的沼气与气体处理装置的低的甲烷含量,在气体处理装置提供该气体混合物被部分地分离,并用甲烷的比例较高的剩余气体混合物的非甲烷组分是只要反馈到沼气发酵罐中以甲烷含量足够高 是。