Method of manufacturing carbon-rich product and co-products

Details Method of manufacturing carbon-rich product and co-products Method of manufacturing carbon-rich product and co-products

C - Chemistry, Metallurgy

01

B

C01B 31/10 (2006.01) C01B 3/02 (2006.01)

Patent

CA 2716190

A method (10) of manufacturing a carbon-rich product and co-products. A parent hydrocarbon-rich material such as coal is provided (24). The parent material is processed (26) so as to produce both a carbon-rich solid material such as activated carbon that has a higher carbon to hydrogen ratio that that of the parent material, and a hydrogen-rich combustible gas that has a lower carbon to hydrogen ration than the parent material. The process includes activating the material by exposing it to a hot gas stream having elevated levels of one or both of carbon dioxide and water vapor. The combustible gas is combusted (32) to produce heat. At least about 40% of the energy content of the combustible gas is used in a separate process (50, 90, 90a, 110, 110a, 110b, 150) having one or more endothermic steps.

L'invention concerne un procédé (10) de fabrication d'un produit riche en carbone et de coproduits. Un matériau parent riche en hydrocarbures tel que le charbon est fourni (24). Le matériau parent est traité (26) de façon à produire un matériau solide riche en carbone tel que du charbon actif qui a un rapport carbone à hydrogène supérieur à celui du matériau parent, et un gaz combustible riche en hydrogène qui a un rapport carbone à hydrogène inférieur à celui du matériau parent. Le procédé comprend l'activation du matériau par exposition à un courant de gaz chaud comprenant des teneurs élevées en dioxyde de carbone ou en vapeur d'eau ou en les deux. Le gaz combustible est brûlé (32) afin de produire de la chaleur. Au moins environ 40 % de la teneur en énergie du gaz combustible sont utilisés dans un procédé séparé (50, 90, 90a, 110, 110a, 110b, 150) comportant une ou plusieurs étapes endothermiques.

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