Fluidized bed gasifier or similar device for simultaneous classification of ash and unreacted coal

Patent · Mon Mar 05 23:00:00 EST 1984

OSTI ID:6869031

Vorres, K S

An apparatus for withdrawing agglomerated solids, e.g. ash, from a fluidized bed of finely divided solid hydrocarbonaceous material, e.g. coal, is described. Agglomeration is effected by a high temperature reaction between the inorganic constituents of the hydrocarbonaceous material in the fluidized bed environment. A venturi is utilized to serve as a passage for withdrawing the agglomerated solids from the fluidized bed. Spiral or other descending ridges are positioned on the interior surface of the constricted cylindrical opening of the venturi to permit variable and increased rates of agglomerate discharge with improved separation and classification of the solid materials.

• Assignee: Institute of Gas Technology
• Patent Number(s): US 4435364
• OSTI ID: 6869031
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AGGLOMERATION
ASHES
CARBONACEOUS MATERIALS
CHEMICAL REACTORS
COAL
COAL GASIFICATION
CONFIGURATION
DESIGN
ENERGY SOURCES
FLUIDIZED BED
FOSSIL FUELS
FUELS
GASIFICATION
MATERIALS
PARTICLE SIZE
RESIDUES
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SIZE
SPIRAL CONFIGURATION
THERMOCHEMICAL PROCESSES
VENTURI TUBES