公开(公告)号：WO2022243724A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054252

申请日：2021-05-18

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00 ,  C21B13/02

Abstract: A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by extraction from coke oven gas through a hydrogen separation unit, the remaining part of such coke oven gas being at least partly injected in the transition section of said DRI shaft to set the carbon amount of said Direct Reduced Iron from 0.5 to 3 wt.% and a DRI manufacturing equipment including a DRI shaft (1) and a hydrogen separation unit (5), wherein said hydrogen separation unit (5) inlet is connected to a coke oven gas supply (6) and includes a first outlet connected to the DRI shaft to inject hydrogen separated from said coke oven gas and a second outlet connected to the transition section of said DRI shaft (1) to inject at least part of the remaining part of such coke oven gas.

公开(公告)号：WO2020053619A1

公开(公告)日：2020-03-19

申请号：PCT/IB2018/056878

申请日：2018-09-10

Applicant: ARCELORMITTAL

Inventor： PEVIDA GARCIA, Covadonga ,  RUBIERA GONZALEZ, Fernando ,  ALVAREZ GUTIERREZ, Noelia ,  REYES RODRIGUEZ, Jon

IPC: B01J20/32 ,  B01J20/20 ,  B01J20/02 ,  B01D53/02 ,  B01D53/047

Abstract: The invention mainly relates to a biomass activated carbon as adsorbent for the separation of carbon dioxide and carbon monoxide from a gas containing at least carbon dioxide, carbon monoxide and inert components such as nitrogen and hydrogen, said biomass activated carbon having a porous structure prepared from fruit stones such as olive stones and impregnated with copper chloride. The invention also relates to a method of separation of carbon dioxide and carbon monoxide from a gas containing at least carbon dioxide, carbon monoxide, and inert components such as nitrogen and hydrogen, wherein said gas is subjected to flow through a CO2 and CO adsorbent layer comprising said biomass activated.