Engineering analysis of hazardous waste incineration energy and mass balance

Clark, W.D.; Seeker, W.R.; Lee, C.C.

doi:10.1016/0191-815x(87)90038-6

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…However, our understanding of the fundamental chemical processes that occur during the combustion of CHCs is inadequate to optimally utilize combustion as a hazardous waste disposal option (Dellinger et al, 1991). CHC emissions from full-scale incinerator tests are generally several orders of magnitude larger than those calculated using rate parameters obtained from laboratory experiments simulating the post-flame oxidative conditions of such systems (Lee et al, 1982;Dellinger et al, 1984;Clark et al, 1988). These data and failure mode arguments strongly infer that pyrolytic reaction conditions are responsible for a significant fraction of these emissions (Dellinger et al, 1986;Tsang, 1986;Taylor et al, 1990).…”

Section: Introductionmentioning

confidence: 98%

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Taylor

Tirey

Rubey

et al. 1994

Combustion Science and Technology

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Section: Introductionmentioning

confidence: 98%

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Taylor

Tirey

Rubey

et al. 1994

Combustion Science and Technology

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“…Simple conceptual [4] and more complex engineering models [5] indicate that post-f lame kinetic parameters including temperature, time at temperature, and reaction atmosphere control the emission of organic compounds from full-scale thermal disposal systems. These models further suggest that hazardous wastes entering the flame are completely oxidized and only the small fraction that bypasses or short-circuits the flame may undergo incomplete oxidation.…”

Section: Introductionmentioning

confidence: 99%

Oxidative pyrolysis of CH₂Cl₂, CHCl₃, and CCl₄‐I: Incineration implications

Taylor

Dellinger

Tirey

1991

Int J of Chemical Kinetics

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The oxidative pyrolysis of methylene chloride, chloroform, and carbon tetrachloride has been investigated using a micro-bore, fused silica, tubular flow reactor operating under laminar flow conditions coupled to in-line GC-MS detection. Data were obtained over the temperature range 573-1273 K for the following conditions: chlorocarbon/oxygen equivalence ratios of 3.0, chlorocarbon concentrations of 2.7 ? 0.1 x mols/L, gas-phase residence times of 2.0 s, and reactor pressures of 1.15 2 0.05 atm. The parent stability (defined by the temperature required for 99% destruction) was evaluated as:CHpC12: 1028 K, CHC13: 873 K, CCl,: 1153 K Chemically activated recombination of chlorinated C1 radicals are proposed as important pathways to chlorinated ethane and olefin products. The most significant finding from analysis of product distributions containing 2 2 carbon atoms was the observation of ca. 1 mol% yields of higher-molecular-weight perchlorinated aromatic species from the decomposition of chloroform and carbon tetrachloride. Implications with respect to the controlled high-temperature incineration of these chlorinated methanes are briefly discussed.

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“…• C temperature. The shell volume provided in the secondary combustion chamber is 11.40 m 3 . So the detention time achieved in the secondary chamber works out to be 2.6 sec.…”

Section: Mass and Heat Balance Of Incineration Systemmentioning

confidence: 99%

“…Hazardous waste incinerators have the potential to destroy hazardous pollutants such as Poly Chlorinated Bebzens (PCBs), Poly Chlorinated Dibenzo Dioxins (PCDDs) or Poly Chlorinated Dibenzo Furans (PCDFs). However, unless high technology emission control equipment is used and properly managed, hazardous waste incinerators could act as a significant source of such substances to the environment (3) . Incineration is thus, far the best-demonstrated available technology for waste destruction.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of common hazardous waste incinerator for ship scraping waste

Shaikh¹

2020

IJST

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Background/Objectives: Hazardous waste incineration is one of the proven technologies for complete destruction of hazardous wastes. These facilities, when designed and operated properly are capable of destroying the hazardous organic components in waste along with PCBs. If these facilities are designed and not operated efficiently, could act as a significant source of such hazardous substances to the environment. Common hazardous waste incineration facilities are designed based on assumptions regarding the availability of quantity and quality (characteristics) of waste. The actual operating waste recipe and performance may differ considerably than the designed. So performance evaluation on actual operating data becomes necessary to check the operational efficiencies and levels of pollutants emitted into the environment. This implies the need for system analysis and solutions by independent assessment procedure. This study focused on the baseline performance evaluation of common hazardous waste incineration facility based on actual plant operating data located in India for Ship Scraping Waste. Methods: Inspection, monitoring and analysis were carried out to characterize all feed and effluent stream. Heat and mass balance were developed and actual operating efficiencies were evaluated. Findings: The results show that temperature and detention time achieved in the secondary chamber were 1150 • C and 2.6 sec respectively, which are above the statutory requirement of 1100 + 50 and 2 seconds. The LOI in Ash was 2.5 %. The flue gas composition indicates 6.12 % Oxygen and 10.20% Carbon Dioxide levels, a good combustion efficiency and ensures sufficient amount of air needed for complete combustion. Flue gas analysis indicates PM, SO 2 , NOx, HCl levels were well below permissible limits and absence of Dioxins and Furans. Destruction efficiency achieved for PM and HCl are 99.53% and 95.62 % respectively to meet the statutory norms. Novelty : Thus, from the study and analysis of results, it is inferred that the common HW Incinerator in the study is operated systematically and efficiently on actual plant operating conditions and meeting all the requirements of Central Pollution control board of India. The research findings will act as benchmarking for optimal plant operational practices for quality of incineration for ship scraping waste.

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Engineering analysis of hazardous waste incineration energy and mass balance

Cited by 7 publications

References 3 publications

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Oxidative pyrolysis of CH₂Cl₂, CHCl₃, and CCl₄‐I: Incineration implications

Performance evaluation of common hazardous waste incinerator for ship scraping waste

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Engineering analysis of hazardous waste incineration energy and mass balance

Cited by 7 publications

References 3 publications

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Detailed Modeling of the Pyrolysis of Trichloroethene: Formation of Chlorinated Aromatic Species

Oxidative pyrolysis of CH2Cl2, CHCl3, and CCl4‐I: Incineration implications

Performance evaluation of common hazardous waste incinerator for ship scraping waste

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Oxidative pyrolysis of CH₂Cl₂, CHCl₃, and CCl₄‐I: Incineration implications