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    METHOD AND SYSTEM FOR FLEXIBLE PRODUCTION OF HYDROGEN AND HYDROCARBONS FROM PRODUCT GAS
    3.
    发明公开
    METHOD AND SYSTEM FOR FLEXIBLE PRODUCTION OF HYDROGEN AND HYDROCARBONS FROM PRODUCT GAS 审中-公开

    公开(公告)号：EP4450483A1

    公开(公告)日：2024-10-23

    申请号：EP23168162.8

    申请日：2023-04-17

    申请人： PAUL SCHERRER INSTITUT

    发明人： Schildhauer, Tilman J.

    IPC分类号： C07C29/151 ,  C10B53/00 ,  C10B53/02 ,  C10B53/07 ,  C10J3/00 ,  C10K1/02 ,  C10K1/32 ,  C10K3/04 ,  B01D53/14

    摘要： It is desirable to design a plant such that it is flexible with respect to the product spectrum and to flexible integration of hydrogen as fuel besides biomass, while minimizing the capital costs by e.g. multipurpose reactors. Even on the feedstock side, some flexibility could be useful, i.e. using besides hydrogen also CO 2 as feed for the production of storable energy carriers, e.g. hydrocarbons, while using the stored energy carrier at least as partial feedstock in times when hydrogen production is desired.
    This objective is achieved according to the present invention by a method/system for producing hydrogen and/or methanol, comprising :
    a) thermochemically converting in terms of gasification and/or pyrolysis a carbonaceous feedstock from biomass or wastes yielding a product gas that comprises at least CO, H 2 and optionally unsaturated hydrocarbons, such as ethylene, acetylene, benzene;
    b) optionally providing a gas cleaning section to remove catalyst poisons, e.g. Sulphur species, from the product gas;
    c) bringing the product gas into a fluidized bed reactor and reacting the product gas in the presence of a catalyst and/or a sorbent based on e.g. copper, molybdenum and/or iron that supports the conversion of CO and H 2 O to hydrogen and CO 2 or to methanol depending on the operation conditions that are controllable in terms of the catalyst and/or sorbents used and/or the pressure and/or the temperature and/or the heat exchange in the fluidized bed reactor;
    d) guiding the reacted product gas to an upgrading section that comprises a particle filter, an optional condensation step and at least one separation unit, such as a membrane, a scrubber, an absorption, a pressure swing adsorption or a temperature swing adsorption, a chemisorption, a liquefaction or combinations thereof, thereby separating a hydrogenrich stream or a methanol-rich stream from the effluent of the fluidized bed reactor.
    This method and this system thus allow to use one single fluidized bed reactor to flexibly decide for the production of hydrogen or methanol thereby enabling a production that for example is enabled to reflect the availability of green hydrogen and/or renewable energy.