The evaluation of supplemental oxygen burner firing in a countercurrent rotary kiln
- IT Corp., Knoxville, TN (United States)
Detailed tests were conducted to evaluate the process impact of treating contaminated soils by concurrently firing the Linde{reg sign} Oxygen Combustion System (OCS) with the main kiln air-natural gas burner. The evaluation was carried out at the Louisiana Army Ammunition Plant (LAAP) on explosives-contaminated soil in International Technology's (IT) countercurrent kiln Hybrid Thermal Treatment System (HTTS{reg sign}). A reference run was conducted to define process performance. The feed soil contained 18 to 22 ppm nitroexplosives at an average moisture content of 17.5% (dry weight basis). A constant ash discharge temperature of approximately 480 C was maintained during the basic tests. The average heat transferred to the soil feed for the reference case was 49 {times} 10{sup 3}W/m{sup 2} of kiln surface and for the OCS tests up to 55 {times} 10{sup 3}W/m{sup 2} was transferred. The average heat release for the reference run and the OCS tests was 160 {times} 10{sup 3}W/m{sup 3} and 187 {times} 10{sup 3}W/m{sup 3} respectively. Capacity increases of up to 20% were achieved by firing the OCS in a countercurrent mode at a substoichiometric oxygen ratio of 56%, resulting in an operating cost reduction of about 12%. Higher oxygen stoichiometric ratios did not produce proportionally increased throughput.
- OSTI ID:
- 5404716
- Journal Information:
- Environmental Progress; (United States), Vol. 10:2; ISSN 0278-4491
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of primary air vitiation for nitric oxide reduction in a rotary cement kiln. Volume 3. Data supplement B. Final report, June 1983-September 1985
Evaluation of primary air vitiation for nitric oxide reduction in a rotary cement kiln. Volume 2. Data supplement A. Final report, June 1983-September 1985
Related Subjects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
BURNERS
PERFORMANCE TESTING
CHEMICAL EXPLOSIVES
WASTE PROCESSING
SOILS
DECONTAMINATION
COMBUSTION
EVALUATION
HEAT TRANSFER
KILNS
LAND POLLUTION CONTROL
OXYGEN
PYROLYSIS
STOICHIOMETRY
CHEMICAL REACTIONS
CLEANING
CONTROL
DECOMPOSITION
ELEMENTS
ENERGY TRANSFER
EXPLOSIVES
MANAGEMENT
NONMETALS
OXIDATION
POLLUTION CONTROL
PROCESSING
TESTING
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
540250* - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
450100 - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives