METHOD AND DEVICE FOR HARD FUEL GASIFICATION Russian patent published in 2008 - IPC C10B49/10 C10J3/66 C10J3/84 

FIELD: chemistry.

SUBSTANCE: invention is intended for chemical industry, and can also be used in power engineering and municipal economy for production of fuel and synthesisgas by means of hard fuel gasification. The claimed method of hard fuel gasification consists in that carbonisation of hard fuel is carried out in pseudoliquefied layer of heat-carrier material. The obtained fuel gas and hard carbonised residue are separated in device installed in the upper part of the apparatus. Carbonised residue is subjected to gasification by mixture of water vapour and oxygen obtaining synthesis gas. Device for hard fuel gasification consists of two coaxially placed vessels, the outer vessel being used for carbonisation, and the inner one for fuel gasification. In the lower part of the outer vessel, an air-distributing grid, with a layer of pseudoliquefied heat-carrier material arranged on it, is placed. The inner high pressure vessel is placed within the limits of pseudoliquefied layer of heat-carrier material. In the upper part of the outer vessel there is a cyclone for separation of fuel gas from hard carbonised residue, which, under the action of its own weight, flows to gasificator through a vertical pipe.

EFFECT: increased reliability of the fuel gasification process and extension of sphere of the process application due to simultaneous production of fuel and synthesis gases.

2 cl, 1 dwg, 1 tbl, 6 ex