Multiple stage method of reforming a gas containing tarry impurities employing a zirconium-based catalyst

Pekka Simell (Inventor), Esa Kurkela (Inventor)

    Research output: PatentPatent


    The invention relates to a method of reforming a gas containing tarry impurities, such as the gasification gas obtained by gasifying a fuel. In the method, oxygen or an oxygenous gas (10) is added to a gas flow (8), after which the gas is brought into contact with a solid catalyst (11, 12) at a high temperature. According to the invention, the reformation takes place in stages so that, in the first pre-reforming stage, the gas is brought into contact with a zirconium-based catalyst (11), such as zirconium oxide, for example, and, in the next stage, with a metal catalyst (12), such as metallic nickel. The two-stage reformation is used for preventing the deactivation of the metal catalyst and the formation of carbon deposits in the reforming reactor. The invention also includes the use of the zirconium compound in pre-reforming the tar-bearing gas to achieve the said goals.

    Patent family as of 31.8.2021

    AU2007235899AA 20071018 AU20070235899 20070410      
    AU2007235899 BB 20110526 AU20070235899 20070410      
    BRPI0710144 A2 20110802 BR2007PI10144 20070410      
    BRPI0710144 B1 20160614 BR2007PI10144 20070410      
    CA2648969 AA 20081009 CA20072648969 20070410      
    CA2648969 C 20150526 CA20072648969 20070410      
    CN101454427 A 20090610 CN200780019050 20070410      
    CN101454427B 20160210 CN200780019050 20070410      
    DE602007054973D1 20180628 DE200760054973T 20070410      
    EP2010630 A1 20090107 EP20070730559 20070410      
    EP2010630 A4 20111005 EP20070730559 20070410      
    EP2010630 B1 20180530 EP20070730559 20070410      
    FI118647 B 20080131 FI20060000346 20060410      
    FI20060346 A 20071011 FI20060000346 20060410      
    FI20060346 A0 20060410 FI20060000346 20060410      
    JP2009533514 T2 20090917 JP20090504767T 20070410      
    JP5606064 B2 20141015 JP20090504767T 20070410      
    US2009324471 AA 20091231 US20070296083 20070410      
    US8100995 BB 20120124 US20070296083 20070410      
    WO07116121 A1 20071018 WO2007FI00090 20070410

    Link to current patent family on right 

    Original languageEnglish
    Patent numberEP2010630
    IPCC10K 3/ 02 A I
    Priority date10/04/07
    Publication statusPublished - 7 Jan 2009
    MoE publication typeH1 Granted patent


    Dive into the research topics of 'Multiple stage method of reforming a gas containing tarry impurities employing a zirconium-based catalyst'. Together they form a unique fingerprint.

    Cite this