Method of operating a fixed bed dry bottom gasifier

Details Method of operating a fixed bed dry bottom gasifier Method of operating a fixed bed dry bottom gasifier

C - Chemistry, Metallurgy

10

J

C10J 3/06 (2006.01)

Patent

CA 2596542

A method of operating a fixed bed dry bottom gasifier (10) includes feeding coarse particulate carbonaceous material (20) with an average particle size of at least 1 mm and an ash fusion temperature increasing agent (32) into a gasification chamber (14) of the gasifier to form a carbonaceous material bed, feeding a gasification agent (22, 24) into the gasification chamber, and gasifying the coarse particulate carbonaceous material in the gasification chamber to produce synthesis gas (30) as well as ash (28). The ash collects in an ash bed below the carbonaceous material and the synthesis gas and the ash are removed from the gasification chamber.

Procédé d'utilisation d'un réacteur de gazéification sec à lit fixe (10) consistant à introduire un matériau carboné (20) à particules grossières d'une taille moyenne d'au moins 1 mm et un agent élévateur de la température de fusion des cendres (32) dans une chambre de gazéification (14) du réacteur pour former un lit de matériau carboné; à introduire un agent de gazéification (22, 24) dans la chambre de gazéification; et à gazéifier le matériau carboné particulaire dans le but de produire un gaz de synthèse (30) ainsi que des cendres (28). Les cendres se concentrent dans un lit de cendre sous le matériau carboné. Le gaz de synthèse et les cendres sont extraits de la chambre de gazéification.

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