Process of conversion for disposal of chemically bound nitrogen in industrial waste gas streams
Patent
·
OSTI ID:5638336
An improved process for disposal of chemically bound nitrogen in industrial waste streams is provided wherein a effluent stream containing chemically bound nitrogen, such as ammonia stream, is contacted with an effective amount of oxygen containing gas and a stoichiometric excess of a hydrocarbon, based on the total amount of available oxygen, at a temperature greater than about 2000/sup 0/ F. or less than 3000/sup 0/ F., to provide a combustion effluent. The combustion effluent is thereafter contacted with an effective amount of a gaseous stream containing less oxygen than that which supports flame propagation at a temperature in the range of from about 1600/sup 0/ F. to about 1800/sup 0/ F., to substantially oxidize all combustibles present in the combustion effluent and provide an oxidation effluent substantially free of oxides of nitrogen (NO /SUB x/ ) and combustibles. The oxidation effluent may be cooled in heat exchange equipment to recover energy, recycled to support the combustion and/or the oxidation of the combustibles, or vented to the atmosphere.
- Assignee:
- McGill Incorporated
- Patent Number(s):
- US 4519993
- OSTI ID:
- 5638336
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
AMMONIA
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
DENITRIFICATION
ELEMENTS
ENERGY RECOVERY
EQUIPMENT
GASEOUS WASTES
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MIXING
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
RECOVERY
REMOVAL
VERY HIGH TEMPERATURE
WASTES
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
AMMONIA
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
DENITRIFICATION
ELEMENTS
ENERGY RECOVERY
EQUIPMENT
GASEOUS WASTES
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MIXING
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
RECOVERY
REMOVAL
VERY HIGH TEMPERATURE
WASTES