Method for processing pulverized solid fuel
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.
- Assignee:
- IFI; EDB-82-063754
- Patent Number(s):
- US 4309197
- OSTI ID:
- 5666227
- Resource Relation:
- Patent File Date: Filed date 13 Sep 1979; Other Information: PAT-APPL-075335
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method and apparatus for converting solid organic material to fuel oil and gas
A role of hydrocarbon reaction for NO{sub x} formation and reduction in fuel-rich pulverized coal combustion
Related Subjects
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