C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 13/14 (2006.01) C10B 47/00 (2006.01) C10B 49/00 (2006.01) C21B 13/00 (2006.01)
Patent
CA 2210707
A method for the co-production of fuel and iron from coal (11) and from iron ore (47) respectfully, which is comprised of heating the coal in the absence of oxygen to make a raw coal gas and a residual coke, and of increasing the content of free hydrogen in the coal gas through the cracking against a desulfurizing hot reagent, of the hydrocarbons contained in the gas in order to yield a hydrogen rich, desulfurized, hot reducing synthetic gas (25). This synthetic gas (25) which is highly reactive, is fed through a bed of iron ore in order to directly reduce the ore to metallized iron (56).
Il est question d'une méthode de coproduction de combustible et de fer à partir de houille (11) et de minerai de fer (47) respectivement. La méthode consiste à chauffer la houille dans un milieu exempt d'oxygène pour produire un gaz de houille brut et un coke résiduel, et à accroître le niveau d'hydrogène libre dans le gaz de houille en produisant le craquage, contre un réactif de désulfuration chaud, des hydrocarbures que contient le gaz afin d'obtenir un gaz réducteur synthétique chaud, désulfuré et riche en hydrogène (25). On fait passer ce gaz synthétique (25) très réactif au travers d'une couche de minerai de fer pour réduire directement le minerai en fer métallisé (56).
Calderon Albert
Swabey Ogilvy Renault
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