skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method for processing pulverized solid fuel

Abstract

A method is disclosed for processing a pulverized solid fuel by heat, which comprises the steps of drying said fuel and subjecting the latter to two-stage pyrolysis with the resulting formation of vapor, gaseous products and small coke. According to the invention, at least a part of the small coke is additionally heated to a temperature of 800 to 1500/sup 0/C by combustion gas and/or by partial burning of the small coke, whereafter the heated small coke is separated from the combustion gas, fed to the first stage of pyrolysis and for drying the fuel. The heated small coke is gasified by steam. The resultant gasification products are separated from the small coke which is then fed as the heat carrier to the first stage of pyrolysis.

Inventors:
; ; ; ;
Publication Date:
OSTI Identifier:
5666227
Patent Number(s):
US 4309197
Assignee:
IFI; EDB-82-063754
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 13 Sep 1979; Other Information: PAT-APPL-075335
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; PYROLYSIS; COKE; GASIFICATION; SEPARATION PROCESSES; SOLID FUELS; COMMINUTION; AIR POLLUTION CONTROL; DRYING; STEAM; SUSPENSIONS; VERY HIGH TEMPERATURE; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; CONTROL; DECOMPOSITION; DISPERSIONS; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; POLLUTION CONTROL; THERMOCHEMICAL PROCESSES; 010406* - Coal & Coal Products- Pyrolysis & Cracking- (-1987); 010404 - Coal, Lignite, & Peat- Gasification

Citation Formats

Chukhanov, Z F, Chukhanov, Z Z, Karasev, V A, Samsonov, V I, and Tsuprov, S A. Method for processing pulverized solid fuel. United States: N. p., 1982. Web.
Chukhanov, Z F, Chukhanov, Z Z, Karasev, V A, Samsonov, V I, & Tsuprov, S A. Method for processing pulverized solid fuel. United States.
Chukhanov, Z F, Chukhanov, Z Z, Karasev, V A, Samsonov, V I, and Tsuprov, S A. 1982. "Method for processing pulverized solid fuel". United States.
@article{osti_5666227,
title = {Method for processing pulverized solid fuel},
author = {Chukhanov, Z F and Chukhanov, Z Z and Karasev, V A and Samsonov, V I and Tsuprov, S A},
abstractNote = {A method is disclosed for processing a pulverized solid fuel by heat, which comprises the steps of drying said fuel and subjecting the latter to two-stage pyrolysis with the resulting formation of vapor, gaseous products and small coke. According to the invention, at least a part of the small coke is additionally heated to a temperature of 800 to 1500/sup 0/C by combustion gas and/or by partial burning of the small coke, whereafter the heated small coke is separated from the combustion gas, fed to the first stage of pyrolysis and for drying the fuel. The heated small coke is gasified by steam. The resultant gasification products are separated from the small coke which is then fed as the heat carrier to the first stage of pyrolysis.},
doi = {},
url = {https://www.osti.gov/biblio/5666227}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 05 00:00:00 EST 1982},
month = {Tue Jan 05 00:00:00 EST 1982}
}