Method and apparatus for gasifying raw material and gaseous product

Esa Kurkela (Inventor), Ilkka Hiltunen (Inventor)

    Research output: PatentPatent


    A method and apparatus for gasifying raw material. The method includes feeding the raw material into an upper part of a fixed-bed gasifier, introducing the raw material from the upper part of the gasifier to a pyrolysis zone of the gasifier to form the fixed-bed and pyrolyzing the raw material in the presence of pyrolysis air to form a pyrolysis product. Introducing the pyrolysis product from the pyrolysis zone to a lower part of the gasifier, introducing primary air countercurrently to the lower part, carrying out a final gasification in a lower part of the gasifier in order to form a gasified gas. Introducing the gasified gas to a catalytic oxidation part and through a catalyst layer of the catalytic oxidation part, and reforming the gasified gas by way of the catalytic oxidation in the presence of reforming air in the catalytic oxidation part, forming a gaseous product.

    Patent family as of 30.11.2021
    BR112017010161 A2 20180619 BR20171110161 20151016      
    CA2967744 AA 20170512 CA20152967744 20151016      
    EP3218449 A1 20170920 EP20150859831 20151016      
    EP3218449 A4 20180711 EP20150859831 20151016      
    FI126357 B 20161031 FI20140006000 20141114      
    FI20146000 A 20160515 FI20140006000 20141114      
    JP2018500403 T2 20180111 JP20170525013T 20151016      
    US10822560 BB 20201103 US20150525543 20151016      
    US2017313951 AA 20171102 US20150525543 20151016      
    WO16075362 A1 20160519 WO2015FI50702 20151016

    Link to currentpatent family on right 

    Original languageEnglish
    Patent numberUS2017313951
    IPCC10J 3/ 42 A I
    Priority date16/10/15
    Publication statusPublished - 2 Nov 2017
    MoE publication typeH1 Granted patent


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