Gasifier method and apparatus
A gas generator apparatus is described for generating combustible gas by pyrolysis of biomass material, the generator apparatus comprising, in combination an enclosed chamber, parallel uniformly inclined and axially-extending support tubes, each of which has a hollow interior axial passage connecting a lower inlet end and an upper outlet end, the support tubes dividing the chamber to form a single gas-generating first chamber region situated above the tubes and a plenum second chamber region below the tubes, the tubes being adapted for oscillation about the axis thereof in a common direction to facilitate the delivery of ash and unburned biomass into the second chamber region, means for introducing biomass material into the first chamber region onto the upper ends of the tubes, means for introducing primary air into the second chamber region for flowing upwardly between the tubes for pyrolysis of the biomass material, means for introducing cooling air into the passages of the tubes at the lower inlet ends thereof for cooling the tubes, the cooling air becoming heated by a heat exchange process as it cools the tubes, and the air being vented from the upper ends thereof, means for exhausting from the first chamber region combustible gas generated by the pyrolysis of the biomass, means for removing ash and unburned biomass from the first chamber region at the lower ends of the tubes, and screw discharge means for removing ash and unburned biomass from the second chamber region.
- Assignee:
- New Hampshire Flakeboard, Antrim, NH
- Patent Number(s):
- US 4586442
- OSTI ID:
- 5582389
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
AIR FLOW
ASHES
BIOMASS
BIOREACTORS
CHEMICAL REACTIONS
COOLING
DECOMPOSITION
DESIGN
ENERGY SOURCES
ENERGY TRANSFER
EXHAUST SYSTEMS
FLUID FLOW
GAS FLOW
GAS GENERATORS
HEAT TRANSFER
OPERATION
OSCILLATIONS
PIPES
PYROLYSIS
RENEWABLE ENERGY SOURCES
RESIDUES
THERMOCHEMICAL PROCESSES