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Combustion of halogenated hydrocarbons with heat recovery

Patent ·
OSTI ID:7027413

This patent describes a water-cooled, horizontal fire-tube boiler having an affixed end section, a boiler section, and a second end section, which comprises in combination: (a) a boiler section comprising a generally closed shell having a vertically disposed metal tube-sheet at each end, the shell holding water between the ends, a relatively long secondary combustion chamber extending along the length of, and within, the shell. It communicates through the tube sheets, relatively small metal return-tubes extending the length of, and within, the boiler shell and communicates through the tube-sheets, the secondary combustion chamber and the return-tubes being in spaced horizontal relationship; (b) wherein the boiler section defines a folded multi-segment flue gas discharge path therethrough; (c) a front end nozzle section adjacent a confined primary combustion chamber for containing combustion gases. The primary combustion chamber communicates with the secondary combustion chamber and into the return-tubes, and has feed means for feeding air, supplemental fuel, and halogenated hydrocarbons into a burner nozzle within the primary combustion chamber; and (d) means for blowing air past the nozzle to define a flame front having a temperature in the range of from about 1,000/sup 0/C to about 1,800/sup 0/C to combust halogenated hydrocarbons.

Assignee:
Dow Chemical Co., Midland, MI
Patent Number(s):
US 4627388
OSTI ID:
7027413
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
BLOWERS
BOILERS
BURNERS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
CORROSION RESISTANCE
ENERGY RECOVERY
EQUIPMENT
FLAME PROPAGATION
FLUE GAS
FLUID FLOW
GAS FLOW
GASEOUS WASTES
HALOGENATION
HEAT EXCHANGERS
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
HYDROCARBONS
NOZZLES
ORGANIC COMPOUNDS
OXIDATION
RECOVERY
SPACE DEPENDENCE
STEAM
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES