Facility for the gasification of carbon-containing feed...

C - Chemistry – Metallurgy – 10 – J

Patent

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Details

C10J 3/56 (2006.01) B01J 8/00 (2006.01) B01J 8/26 (2006.01) B01J 8/28 (2006.01) B01J 8/32 (2006.01) F28D 15/02 (2006.01)

Patent

CA 2376483

The invention relates to a device for the gasification of carbonaceous and especially biogenic feedstock that allows a simple design and safe functioning. The invention also provides a fluidized reactor to be used together with said device. According to the invention, the pressurized fluid bed gasification chamber comprises a pressure-resistant lock-chamber for charging the feedstock to be gasified. The fluid bed gasification chamber is linked with a filter chamber via a connection channel so that the gas issued from the fluid bed gasification chamber can flow into the filter chamber where it is passed through the filter layer. An external heat source provides the heat required for the allothermic gasification. The heat is guided from the external heat source to the gasification bed of the fluid bed gasification chamber by means of a thermoconductive tube system and provides the temperature required for the gasification process.

La présente invention concerne un dispositif permettant la gazéification de charges carbonées et notamment biogènes. La construction de ce dispositif est simple et son fonctionnement est sûr. L'invention concerne en outre un réacteur à lit fluidisé adapté à ce dispositif. Selon cette invention, une chambre de gazéification à lit fluidisé suralimentée en pression comprend un sas résistant à la pression et servant à l'alimentation en charge à gazéifier. Cette chambre de gazéification à lit fluidisé est reliée à une chambre filtre par un canal de liaison, de façon que le gaz issu de la chambre de gazéification à lit fluidisé peut s'écouler dans la chambre filtre où il traverse la couche filtrante. La chaleur nécessaire à la gazéification allothermique est préparée par une source de chaleur extérieure. La chaleur est conduite de la source de chaleur extérieure dans le lit de gazéification de la chambre de gazéification à lit fluidisé par un dispositif tubulaire thermoconducteur, afin de préparer la température nécessaire à la gazéification.

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