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Catalytic unit for gas phase catalysis, more especially for use with wood- and other solid fuel-burning stoves

Patent ·
OSTI ID:5750554
;

This patent describes in combination: a solid fuel burning stove having a firebox and a flue aperture; a heat exchanger jacket connected to the flue aperture and having a tubular inner wall and a tubular outer wall spaced outwardly therefrom and defining an air space therewith; a catalytic combustor unit disposed in the heat exchanger jacket comprising means for maintaining approximately true pyrolysis in the firebox, including a first catalytic unit and a second catalytic unit spaced longitudinally downstream from the first unit and defining therewith a chamber bounded by an intermediate portion of the inner wall of the heat exchanger jacket, each catalytic unit comprising longitudinally extending walls defining a multitude of small tubular flow passages extending generally longitudinally of the heat exchanger jacket and supporting a catalyst for promoting cracking of hydrocarbons and combustion of carbon monoxide and carbon particles, an air inlet conduit communicating between the surroundings and the air space in the heat exchanger jacket, for introducing secondary combustion air into the air space; and air inlet ports through the portion of the inner wall of the heat exchanger jacket, the ports directing the secondary combustion air non-radially into the chamber.

Assignee:
NOV; NOV-85-013599; EDB-86-115721
Patent Number(s):
US 4584177
OSTI ID:
5750554
Country of Publication:
United States
Language:
English

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Related Subjects

09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
APPLIANCES
CATALYSTS
CATALYTIC COMBUSTORS
CATALYTIC CRACKING
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTORS
CONTROL EQUIPMENT
CRACKING
DECOMPOSITION
DESIGN
ENERGY TRANSFER
EQUIPMENT
FLOW REGULATORS
FLUE GAS
FUELS
GASEOUS WASTES
HEAT EXCHANGERS
HEAT TRANSFER
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDATION
POLLUTION ABATEMENT
PYROLYSIS
SOLID FUELS
STOVES
THERMOCHEMICAL PROCESSES
VALVES
WALLS
WASTES
WOOD
WOOD BURNING APPLIANCES