Fluidized bed reactor apparatus and related gasification system

Patent · Tue Nov 16 00:00:00 EST 1982

OSTI ID:6625864

Fernandez, J M; Hoffert, F D; Marina, J M; Milligan, J D

A process and pressurized, gasification reactor apparatus are claimed for converting combustible carbon containing materials such as coal char and other carbonaceous solids or carbonaceous solids/heavy oil combinations to an intermediate heating value fuel gas. The gasification reactor includes an insulated fluidized bed reactor chamber, an upper reactor housing for a freely suspended bayonet bundle type heat exchanger for (A) superheating incoming saturated steam and (B) cooling outgoing high temperature product gas, and a lower reactor housing structure which includes a freefloating, conically-shaped perforated plenum chamber. The superheated steam and oxygen are premixed with the plenum chamber before being pressure directed into the fluidized bed reactor chamber for mixture and combustion with the incoming combustible carbon containing materials such as coal char. After reaction of the superheated steam, oxygen and coal char in the fluidized bed reactor at temperatures ranging from 900/sup 0/ F to 1750/sup 0/ F, the product fuel gases and associated particulate matter are cooled by steam flowing through the bayonet heat exchanger, the steam being superheated by this exchange. After discharge from the heat exchanger, the fuel gas product containing particulate matter is pressure directed into a conventional cyclone separator for (A) separation of the desired product gases and (B) return of the particulate matter for further recycling in the reactor chamber. Undesirable ash clinkers are gravitationally and pressure directed out of the reactor chamber through a central ash withdrawal pipe.

• Assignee: Hydrocarbon Research Inc
• Patent Number(s): US 4359326
• OSTI ID: 6625864
• Resource Relation: Patent File Date: Filed date 20 Nov 1980; Other Information: PAT-APPL-208762
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION
FLUIDIZED BED REACTORS
DESIGN
CARBON MONOXIDE
CHARS
COAL
CYCLONE SEPARATORS
HYDROGEN
METHANE
OXYGEN
PARTICULATES
RECYCLING
STEAM
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CONCENTRATORS
ELEMENTS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUEL DISPERSION REACTORS
FUELS
GASIFICATION
HOMOGENEOUS REACTORS
HYDROCARBONS
INERTIAL SEPARATORS
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION CONTROL EQUIPMENT
PYROLYSIS PRODUCTS
REACTORS
SEPARATION EQUIPMENT
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification