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    METHOD OF HYDROGASIFICATION OF BIOMASS TO METHANE WITH LOW DEPOSITABLE TARS
    8.
    发明公开
    METHOD OF HYDROGASIFICATION OF BIOMASS TO METHANE WITH LOW DEPOSITABLE TARS 审中-公开
    利用低沉淀塔将甲烷水合成甲烷的方法

    公开(公告)号：EP2961720A1

    公开(公告)日：2016-01-06

    申请号：EP13876228.1

    申请日：2013-02-26

    申请人： G4 Insights Inc.

    发明人： SELLARS, Brian, G. ,  BABICKI, Matthew, L. ,  KEFFER, Bowie, G. ,  NG, Edson

    IPC分类号： C07C1/20 ,  C10G1/06 ,  C10G47/24

    CPC分类号： C10G3/50 ,  B01J23/755 ,  C01B3/38 ,  C01B3/50 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0415 ,  C01B2203/042 ,  C01B2203/043 ,  C01B2203/0811 ,  C01B2203/1241 ,  C10G2/32 ,  C10G2/332 ,  C10J3/60 ,  C10K3/023 ,  C10K3/04 ,  C10L3/08 ,  C10L2290/04 ,  C10L2290/06 ,  C10L2290/10 ,  C10L2290/54 ,  Y02E50/14 ,  Y02P20/145 ,  Y02P20/52 ,  Y02P30/20

    摘要： Embodiments of a thermochemical method to convert lignocellulosic biomass to a useful fuel is disclosed in a process sequence resulting in low levels of depositable tars in the output gas stream. One disclosed embodiment comprises performing a sequence of steps at elevated pressure and elevated hydrogen partial pressure, including fast (or flash) hydropyrolysis of a lignocellulosic biomass feed followed sequentially with catalytically enhanced reactions for the formation of methane operating at moderate temperatures of from about 400°C to about 650°C and under moderately elevated pressure (about 5 atm to about 50 atm). A temperature rise in the catalyst above pyrolysis temperature is achieved without the addition of air or oxygen. Gas residence time at elevated temperature downstream of methane formation zones is extended well beyond the time required for methane formation. This sequence results in low depositable tars in the output gas stream. The catalyst promotes both the cracking of pyrolysis gases and reactions with hydrogen to preferentially form methane and non-deposit forming hydrocarbons, and also preferentially promotes coke re-gasification.

    摘要翻译： 将木质纤维素生物质转化成有用燃料的热化学方法的实施方案公开于导致输出气流中低水平可沉积焦油的工艺顺序中。 一个公开的实施方案包括在升高的压力和升高的氢分压下进行一系列步骤，包括木质纤维素生物质进料的快速（或快速）加氢热解，随后依次进行催化增强的反应以形成在约400° 约650℃并在适度升高的压力（约5atm至约50atm）下进行。 在没有添加空气或氧气的情况下，达到热解温度以上的催化剂的温度升高。 甲烷形成区下游高温下的气体停留时间远远超过甲烷形成所需的时间。 该顺序导致输出气流中可沉积的焦油很少。 该催化剂促进裂解气体的裂化和与氢反应以优先形成甲烷和不形成沉积物的烃，并且还优选促进焦炭再气化。