Patent ID: 7811340

Claim:
Facility for producing synthesis gas from a solid feedstock including organic matter, said facility including means for circulating a heat-carrying solid providing at least some of the heat necessary for such production, a zone Z 1 including pyrolysis and gasification means, a zone Z 2 including separation means, a line for supplying gaseous and solid effluents from zone Z 1 to zone Z 2 , a zone Z 3 including gasification means, a zone Z 4 including separation means, and a zone Z 5 including combustion means, characterized in that zone Z 1 has means for pyrolysis and gasification of said feedstock in a transported fluidized bed of the heat-carrying solid, in that zone Z 2 has means for at least partial separation of the effluents from zone Z 1 into an essentially gaseous phase and into an essentially solid phase comprising solid residue and heat-carrying solid, in that zone Z 3 is supplied at least in part with said essentially solid phase and includes a dense fluidized bed of the heat-carrying solid for gasification of the solid residue of said essentially solid phase, in that zone Z 4 includes means for separating the effluents coming from zone Z 3 into a synthesis gas and an entrained solid phase, and in that zone Z 5 includes means for combusting a solid phase comprising solid residue not converted into synthesis gas and spent heat-carrying solid coming from zone Z 3 through a line directly connecting said zone Z 3 to said zone Z 5 , and means for transferring the heat-carrying solid coming from zone Z 5 into zone Z 1 .