SYSTEM OF CLEANED FUEL GAS OBTAINING FROM SOLID FUEL Russian patent published in 2017 - IPC C10J3/20 

FIELD: oil and gas industry.

SUBSTANCE: system for cleaned fuel gas obtaining from solid fuel contains a gasification furnace 3 with a reaction chamber, the body of which is equipped with lances of air 8 and steam 7 blasting, a tap for liquid slag removal. The gasifier pipeline is connected to the slag pulp collection tank 27, which is provided with a water supply pipe 29 from the water pipe, and in the lower part - with a slag removal pipe 30. The mixing tank 2 is provided with a nitrogen supply pipe 4 and a nitrogen removal pipe 5 which is connected by a pipe to a mixer 6. The body of the gasifier is equipped with a water supply pipe from the water line 10, a cooling water inlet 11 from the water line and a cooling water outlet 12. Power gas discharge tube 13 from the tap, located in the lower part of the furnace gasifier housing, is connected by a pipeline to the power gas cooling device 14. The power gas cooling device is connected to a high-temperature cyclone 17, the lower part of which is integrated with the ash storage tank 18. The high-temperature cyclone high-pressure pipeline is connected to the reduction device 19 which is connected via a mixer 6 to an air heater 9 which is connected by a high-pressure line to a cyclone battery 24 equipped with a channel for ash handling 25 and a high-pressure line 26 connected to the power boiler fire box.

EFFECT: obtaining a power gas suitable for use in power boilers and the characteristics of which correspond to the normative parameters.

1 dwg