METHOD OF GASIFICATION OF COAL IN A HIGHLY OVERHEATED WATER VAPOR AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC C10J3/00 

FIELD: gas industry.

SUBSTANCE: invention relates to methods and devices for coal gasification with highly superheated water vapor for its conversion to fuel gas or syn gas. Method includes the supply of coal particles and superheated water vapor to the coal gasification zone and the conversion of gasification products into fuel gas or syn gas, removal of gasification products to the consumer and removal of the ash residue. At the same time, coal particles or particles of carbonaceous material are fed into a high-speed jet of shock-compressed highly superheated water vapor for aerodynamic fragmentation of agglomerates of particles and preliminary thermochemical preparation of a two-phase “superheated water vapor – particles” mixture, and the resulting two-phase jet is fed tangentially into the vortex gasification zone, where, under highly swirling flow conditions, coal gasification occurs and the gasification products are converted into fuel gas or syn gas. Next, the resulting fuel gas or syn gas is removed from the gasification zone partially to the consumer and partially to obtain a high-speed jet of high-speed jet of shock-compressed highly superheated water vapor, and the ash residue in the form of a melt enters the ash residue removal system.

EFFECT: technical result consists in providing oxygen-free gasification of coal for its conversion into fuel gas or syn gas.

2 cl, 1 dwg, 1 ex