Device and facility for converting dry carbon-containing and/or hydrocarbon-containing raw materials into synthesis gas

A device (100) for converting carbonaceous dry raw materials (MPCS) into a synthesis gas comprising CO and H2, said device (100) comprising:

• a MPCS pyrolysis chamber (110) open at the top and bottom, and adapted to contain MPCS;
• a port (106), at top of said pyrolysis chamber, for introducing the MPCS into said pyrolysis chamber (110);
• and
• a port (108) for extraction of synthesis gas from said pyrolysis chamber (110);
• a central chamber (120) disposed in said pyrolysis chamber (110), and comprising:
• at least one port (128) allowing only a gaseous communication between said central chamber (120) and said pyrolysis chamber (110);
• and
• at least one oxygen injection port (132) in said central chamber (120) for oxidizing at least one portion of the pyrolysis gases passing from the pyrolysis chamber (110) to the central chamber (120);
• wherein:
• at least one oxygen injection port (132) is in a cracking chamber at the bottom of said central chamber (120);
• and
• the gaseous communication ports (128) are at the top and on the sides of said central chamber (120),
• wherein said device comprises at least one double wall (124) separating the central chamber (120) from the pyrolysis chamber (110), intended to circulate a gaseous flow of CO2, wherein on an opposite side to the central chamber (120) the pyrolysis chamber (110) is delimited by a further double wall (112) on at least one lateral portion of said pyrolysis chamber (110), and wherein the at least one double wall (124) separating the pyrolysis chamber (110) and the central chamber (120), and the further double wall (112) delimiting the pyrolysis chamber (110), communicate with each another through one or more transverse double walls (126), wherein said device is in the form of a one-piece assembly.