US 12,305,133 B2
Method and apparatus for removing impurities from gasification gas and use
Ilkka Hiltunen, Vtt (FI); and Esa Kurkela, Vtt (FI)
Assigned to TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI)
Appl. No. 17/765,745
Filed by TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI)
PCT Filed Oct. 7, 2020, PCT No. PCT/FI2020/050662
§ 371(c)(1), (2) Date Mar. 31, 2022,
PCT Pub. No. WO2021/069799, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 20195859 (FI), filed on Oct. 8, 2019.
Prior Publication US 2022/0403266 A1, Dec. 22, 2022
Int. Cl. C10K 3/02 (2006.01)
CPC C10K 3/023 (2013.01) 14 Claims
OG exemplary drawing
 
1. A method for removing impurities from a gasification gas, wherein
the gasification gas which comprises at least tars and/or undesired hydrocarbons is supplied to a catalytic reformer which comprises at least one catalyst bed formed of catalyst particles, and a feed rate of the gasification gas is 0.1-3 m/s to the catalyst bed,
oxygen containing gas is injected directly onto a surface of the catalyst bed, and a feed rate of the oxygen containing gas is 20-90 m/s to the catalyst bed,
the gasification gas is arranged to flow through the catalyst bed and arranged to contact with the oxygen containing gas in the catalyst bed and to not contact with the oxygen containing gas before the catalyst bed, in which the gasification gas reacts with the oxygen containing gas in the catalyst bed on surfaces of the catalyst particles of the catalyst bed or in pores of the catalyst particles of the catalyst bed, and
a purified gas formed from the reaction of the gasification gas with the oxygen containing gas in the catalyst bed is discharged from the catalytic reformer, wherein a temperature of the purified gas is 850-950° C.