Two stage dry feed gasification system

A system for gasification of a carbonaceous material, comprising:

• (a) a reactor upper section adapted for:
• receiving a first mixture product comprising syngas from a reactor lower section, reacting the first mixture product therein with i) a solid carbonaceous feedstock, and ii) recycled residual solids, fines and particulates to produce a second mixture product,
• conveying the second mixture product to a first separating device;
• (b) a first separating device adapted for:
• receiving the second mixture product,
• separating the second mixture product therein to produce a first solid product stream and a first gaseous product stream,
• conveying the first solid product stream to the reactor lower section and the first gaseous product stream to a heat recovery unit;
• (c) a heat recovery unit adapted for:
• receiving the first gaseous product stream,
• transferring heat from the first gaseous product stream to water and producing steam,
• conveying the steam to the reactor lower section;
• (d) a reactor lower section adapted for:
• receiving i) the second solid product stream of part (b), the steam of part (c) and iii) a gas stream and reacting therein to produce heat and the first mixture product of part (a);
• wherein the first mixture product comprises syngas,
• wherein the reactor lower section is further adapted for conveying the heat and the first mixture product to the reactor upper section;
• (e) a solid-gas mixer adapted for :
• receiving a carbonaceous feedstock and the first gaseous product stream of part (b),
• mixing the carbonaceous feedstock and the first gaseous product stream therein to form a warm solid-gas mixture, wherein moisture is transferred from the carbonaceous feedstock to the first gaseous product stream in the warm solid-gas mixture,
• conveying the warm solid-gas mixture to a second separating device;
• (f) a second separating device adapted for:
• receiving and separating the warm solid-gas mixture to produce a substantially dry feedstock and a second gaseous product stream,
• conveying the substantially dry feedstock into the reactor upper section.
• (g) a particulate filtering device adapted for:
• receiving the second gaseous product stream,
• separating the second gaseous product stream therein to remove residual solids, fines and particulates,
• conveying the residual solids, fines and particulates to the reactor upper section.