Apparatus for gasifying a fuel

C - Chemistry – Metallurgy – 10 – J

Patent

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Details

C10J 3/48 (2006.01) C10J 3/52 (2006.01)

Patent

CA 2587637

The invention provides an apparatus (3) for gasifying a fuel to form synthesis gas wherein also a slag (11) is formed. The apparatus (3) comprises: - a pressure shell (1) ; - a slag bath (15) ; - a gasifier wall (4) arranged inside the pressure shell (1) defining a gasification chamber (2) comprising a converging wall part (14) that is provided with a slag discharge opening (5), located above the quench fluid in the slag bath (15) ; - a free-fall trajectory (10) for the slag (11) ; - a heat shield (21) arranged above the slag bath (15) between the free-fall trajectory (10) and the pressure shell (1), the heat shield (21) comprising a wall structure for allowing passage of a cooling fluid, the wall structure comprising an upper wall part (23) and a lower wall part (24) . The lower wall part (23) of the heat shield (21) is essentially refractory free.

La présente invention décrit un appareil (3) pour gazéifier un combustible afin de former un gaz de synthèse, une scorie (11) étant également formée dans ledit appareil. L~appareil (3) comprend : - une coque de pression (1) ; - un bain de scorie (15) ; - une paroi de gazéification (4) agencée à l~intérieur de la coque de pression (1) définissant une chambre de gazéification (2) comprenant une partie de paroi convergente (14) qui est pourvue d~une ouverture d~évacuation de scorie (5), positionnée au-dessus du fluide d~arrosage dans le bain de scorie (15) ; - une trajectoire de chute libre (10) pour la scorie (11) ; - un bouclier thermique (21) agencé au-dessus du bain de scorie (15) entre la trajectoire de chute libre (10) et la coque de pression (1), le bouclier thermique (21) comprenant une structure de paroi pour permettre le passage d~un fluide de refroidissement, la structure de paroi comprenant une partie de paroi supérieure (23) et une partie de paroi inférieure (24). La partie de paroi inférieure (23) du bouclier thermique (21) est essentiellement non réfractaire.

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