SU850649A1 - Method of thermal processing of dust-like solid fuel - Google Patents

Description

(54) METHOD OF THERMAL PROCESSING OF DUSTY SOLID FUEL The invention relates to methods for thermal processing of pulverized solid fuel and can be used in the field of energy technology to produce transportable energy and process fuel, as well as chemical and technical raw materials. There is a method of thermal processing of small-sized solid fuels, in which in one furnace successively drying, pyrolysis with removal of coke and steam-gas products, gasification of coke in the presence of water vapor, followed by separation of solid and gaseous products}. The disadvantage of this method is that coke is obtained as a commercial product, burning of which in the furnace of the boiler furnaces results in slagging and pollution of the atmosphere with harmful emissions. In addition, a lot of energy is consumed to heat the coolant. The closest to the proposed technical essence and the achieved effect is a method of thermal processing of pulverized solid fuel, including its drying with subsequent separation of steam and gas products from coal, two-stage pyrolysis of coal to produce coke and steam and gas products, heating coke with flue gases and / or by partial combustion with the subsequent separation of coke from flue gases, the supply of flue gases to the first stage of pyrolysis, the supply of heated coke to gasification in the presence of water vapor , Separation of gasification products into solid and gaseous products, feed solids to the first pyrolysis step f2 J. The disadvantage of this method is that the fuel is carried out suschku flue gas fed

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kachegr-5op: opus 5; -; eat with a heat sinker and a separator in which coal and coking are separated from water vapor. A total of 8 kg of water vapor is introduced into the reactor of 27 gas of the e-gas, and 80 is fed for circulation in the plant to the mill 2, dry coal 64 kg and coking gas 120 kg with a temperature of 250 ° C through a plug-valve J6 into the reactor. the first stage, where the mixed fuel-coking fluid from 7 V50 from the rector 27 gas architectures to the gas and the technological furnace 25 with a temperature of 1050 C ,. The coal is heated in the W-Erolm stage two before and the high-speed coal is carried out; ool; coal, as a result of pyrolysis, 29.5 xg of steam-gas mixture and 35.2 kg of coke are obtained. The gas-vapor mixture is directed to the system of cleaning and finalizing. it contained 8,, 0 kg of lyrolized gas (gas) gas, 8.6 kg of tar and rasosoro gasoline, 2., 9 kg of pyrogegous water and a half of gas, the composition of gas.,% / 22; WITH 27; M., 20; SI, 21 to pr. Hydrocarbons. 67500 kcal5, i.e., liquid, fuel and gum products, and resin are transferred to the resin. 19Z potential heat ang. In pyrolysis gas with a calorific value of 4840 kcal per m - 81000 kcal is transferred, I. GP - 23% -. entsna te la aq KOXIC B, the image of lean coal pyrolysis, translates 38% of EEODI; MSgo into the heat installation. Commodity coke produced 14.4 kg, including 12 kg of carbon and 0.2 kg of hydrogen, In the second stage pyrolyzer and in those; - the ecological furnace respectively converted into gas and floor gas 2.2 and 8.3 kg of coke. , With coke and slag, Ü, 5 kg of ash fuel. To reactor & through industrial 8, heat transfer 166 to the coolant - ;; oxyka 5, and also 18 kg of superheated village steam through pipe 12; reactor 6.2 has a carbon-carbon reaction; carbon dioxide and hydrogen are despised by the reaction of carbon with water vapor. circulator flow (166 kg / coolant when separator B is injected, where kx is separated. Water gas through the pipe: J; oO; ox: ici.KJ,, clear and peredmot consumer. KoKC: iK-Tenj ; OKO divider is mixed with a gas turbine separator 6 through the gas turbine I 7, and this ciiacfc plant is used in the first step for lightning pyrolysis. Tszsl sa.vaiKaOT, the circuit does not have any ambient & , ki n teknologi-; eskoi parts of the p and f- S p 2, Terc iccKyjo carry out the processing of pulverized solid fuel, removing coke as a part of About the product. It is used for processing raw natural coal of the Canadian-Achnian coal: e composition; that n s npi ..- iepe I. 3 re-use of water gas per 00 kg hl using rGiOT syrup of vapor evaporated from coal, 36 kg KOKCi -iKa: 2, b kg. Receiving from water gas, 8.3 kg Oyep ip and viadcht mode B process for the process of gas, Ztokepos: 1% gives ekno; -1I 6%; 9% of heat output; , noniiinjaM i (il recycling use;;: user :: 1I coal. Thus, S is preconfigured by the creation of a lock: the pyrolysis cycle and ch. Cations are excluded. Erednier is released into the atmosphere. as the pyrolytic, water and c.Meuaiins gases come into the furnace of the power units. For this reason, the fire has been significantly reduced; the honeycomb boiler energy block and its operation has been simplified; Tcii ;;; In addition, since the E in the predicted method is used water ar. in case of cyufKe fuel, the production is not the same as the flow rate of the fuel / fuel source, which means: 1mu decreases the rsg-code of the energy used for production; H ;; products. GENERALIZATION AND METHOD OF THERMAL TREATMENT OF DUSTY SOLID SOLID FUEL, INC.PYUCHAGOSH, WITH IT WITH: LIGHT WITH 11THER UTILED SEPARATED PRODUCT FROM COAL, TWO STEPS PYROLYZE COAL TO RECEIVE KHOXIK - (steam / gas products, GH; OXYC); with gases and / or loot; -: partial burning 1-1I followed by separating the coke from the other 7 ha

the call, the supply of gases to the pyrolysis stage, the supply of jaroe-iV-rO coxics to the gasification station x1-a and the risk of water napaj radedep; e upa.tVKTOs of gasification to the vi vi vigers, feed; npOAyf :: GE first stage of pyrolysis. with t, ri ;; H y u and and so, THAT; with the aim of reducing harmful VVs, discharges into the atmosphere and energy consumption for obtaining a price :;

products; coal OSUPYSTODGKYUG

part of the coke- Golosheinogo s: rotsu

Peohshsha ,, and Ea.iina pzr formed from the moisture of aoplva during its drying. alot and stage of validation to drying

: Лсгочни: to the information: this is not a problem during the examination

i. Fezsezzz C ,, Z., Chernyshev AB ; ukoksova ie and gasification of solid fuel .. I960, p. 548-149,

2.:. Atar USSR certificate

; 1a: Bke R 379 i 3 / 23-26, C 10 V 9/00 ,, 01.05,76 (proto

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Claims (2)

A method for the thermal processing of pulverized solid fuel, including drying it with the subsequent separation of combined-cycle products from coal, two-stage pyrolysis of coal to produce coke and vapor-gas products, heating coke with flue gases and / or partial combustion paths, followed by separation of coke from flue gases, supplying flue gases at nepsyw, the pyrolysis stage, the lasretopoxic acid feed for gasification into the drys a / ttet / its pyrolysis, and the water vapor generated from the moisture of the fuel during its drying is fed to. gasification and drying stages. water vapor separation products IS TU ЧН ИГ / И AND HtpG РМСЩНИ% of gasification to solid and gyzosobraznye,. the products taken into account during the examination, the supply of solid products to K Fedoseev S. / S, Chernyshev AB the first stage of pyrolysis, with t and h - Semi-coking and gasification with solid W and so with the fact that, with the goal of mind and 4 “th fuel. I960, p. 148-149. emissions of atmospheric emissions 2. USSR author's certificate and energy costs for obtaining targeted on application K ’2379153 / 23-26. products, coal drying is carried out by CLS. О В У / 0003.05.76 (proto-part of the coke produced by the s-process, l.