METHOD OF COMPLEX THERMOCHEMICAL SOLID FUEL PROCESSING WITH SERIAL DISCHARGE OF DIVISION PRODUCTS Russian patent published in 2012 - IPC C10B49/22 C10J3/64 B01D53/52 B01D53/58 B01D53/72 

FIELD: power engineering.

SUBSTANCE: method of complex thermochemical solid fuel processing consists in drying and grinding of fuel to dusty condition. Pyrolysis is carried out to produce a steam and gas mixture and coal char. The steam and gas mixture is exposed to multistage division. At the first stage products are released, which are not exposed to further decomposition, such as di- and triphenyl methane, pyrene, diphenyl, phenanthren, chrysene. At the second stage naphthalene and hydroxynaphthalene is released, which make it possible to produce coal oil and are sent to a system of steam and gas mixture cleaning from benzol. At the third stage a light resin fraction is released. After multistage separation a coke gas is cleaned from hydrogen sulphide, ammonia and benzol. The cleaned coke gas is burnt in a combustion chamber of a gas turbine. Steam is produced, and combustion products are recycled in a recovery boiler. The produced steam is used during steam-oxygen gasification of a part of coal char. Activated carbon is produced from the remaining part of coal char, which is used as a sorbent. Also a plant is proposed for complex thermochemical processing of solid fuel.

EFFECT: complex processing of solid fuel with serial discharge of division products.

5 cl, 1 dwg