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    • 4. 发明申请
    • METHOD FOR DESULPHURATION OF THE DIGESTATE AND THE BIOGAS OF A DIGESTER, AND BIOGAS PRODUCTION FACILITY IMPLEMENTING SAID METHOD
    • DIGESTATE和DIGESTER的生物降解方法以及实施方法的BIOGAS生产设施
    • US20130341269A1
    • 2013-12-26
    • US13976897
    • 2011-12-23
    • Caroline BouchetRoger NicolClaude Prevot
    • Caroline BouchetRoger NicolClaude Prevot
    • C02F11/04
    • C02F11/04C02F1/727C02F1/74C02F3/28C02F2101/101C02F2209/02C02F2209/22C02F2209/225C02F2209/26C02F2209/265C02F2209/40C02F2301/043C02F2301/106C02F2303/08C12M21/04C12M29/18C12M47/18Y02E50/343Y02W10/12
    • The invention relates to a method for desulphuration of the digestate and biogas in a digester (1) of urban and/or agricultural and/or industrial effluent, by biochemical and/or thermochemical processes, the digester consisting of an enclosure (2) which is closed at the top, in which anaerobic digestion of a mass of products to be treated making up the digestate (4) takes place, the digester comprising at least one loop (10) for external recirculation of the digestate; an oxidant is injected at least at one point (13, 14) of the loop (10), the injection conditions being as follows: the speed of circulation of the digestate in the loop (10) must be high enough to prevent the deposition of sulphur on the walls of the pipes; the contact time between the injected oxidant and the recirculated digestate recirculated from the injection point (13, 14) of the oxidant until the reinjection point (11 b) of the digestate must be long enough for all the oxidant to be dissolved in the liquid phase of the digestate; the amount of oxygen in the oxidant injected into the recirculation loop must be low enough to avoid the presence of oxygen in the biogas, but high enough to eliminate the hydrogen sulphide from the biogas.
    • 本发明涉及通过生物化学和/或热化学过程在城市和/或农业和/或工业废水的消化器(1)中脱硫消化物和沼气的方法,所述消化器由外壳(2)组成,所述外壳 封闭在顶部,其中发生大量要处理的待处理产品的消化物(4),消化器包括用于消化物的外部再循环的至少一个环(10); 至少在环(10)的一点(13,14)处注入氧化剂,注入条件如下:消化物在环(10)中的循环速度必须足够高以防止 管壁上的硫磺; 注入的氧化剂和从氧化剂的注入点(13,14)再循环到再消消化的再注入点(11b)之间的再循环消化物之间的接触时间必须足够长以使所有的氧化剂溶解在液相中 的消化; 注入再循环回路的氧化剂中的氧气量必须足够低以避免生物气体中存在氧气,但足够高以从沼气中除去硫化氢。