Comparison between emissions from the pyrolysis and combustion of different wastes

Conesa, Juan A.; Font, R.; Fullana, Andrés; Martı́n-Gullón, Ignacio; Aracil, Ignacio; Gálvez, Araceli; Moltó, Julia; Gómez-Rico, María Francisca

doi:10.1016/j.jaap.2008.11.022

Cited by 132 publications

(84 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Naphthalene is clearly the most abundant product, which is in agreement with the results presented 182 by Conesa et al (Conesa et al, 2009). 183…”

supporting

confidence: 90%

“…Under pyrolytic conditions light 172 hydrocarbons show in general higher yields which indicate that these compounds react with oxygen 173 in combustion experiments (Conesa et al, 2009;Conesa et al, 2000;Fullana et al, 2000). As for the 174 temperature, most of them decrease their yields with increasing temperature, although there are [9] some few exceptions at low (or zero) oxygen ratios, such as the case of methane, ethylene, benzene 176 or toluene.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Pollutant formation in the pyrolysis and combustion of Automotive Shredder Residue

et al. 2016

View full text Add to dashboard Cite

The present work has been carried out to verify the feasibility of thermal valorization of an 10 automobile shredder residue (ASR). With this aim, the thermal decomposition of this waste has 11 been studied in a laboratory scale reactor, analyzing the pollutants emitted under different 12 operating conditions. The emission factors of carbon oxides, light hydrocarbons, PAHs, PCPhs, 13 PCBzs, PBPhs, PCDD/Fs, dioxin-like PCBs and PBDD/Fs were determined at two temperatures, 600 14 and 850ºC, and under different oxygen ratios ranging from 0 (pure pyrolysis) to 1.5 (over-15 stoichiometric oxidation). After analyzing all these compounds, we conclude that thermal 16 valorization of ASR is a clean way to treat this waste. 17

show abstract

“…Naphthalene is clearly the most abundant product, which is in agreement with the results presented 182 by Conesa et al (Conesa et al, 2009). 183…”

supporting

confidence: 90%

mentioning

confidence: 99%

Pollutant formation in the pyrolysis and combustion of Automotive Shredder Residue

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Table S1 in the Supporting Information provides the complete data of the analyses done. Profiles shown in Figure 1 are those typical in combustion processes [14][15][16], with a higher amount of furans than dioxins. [ Figure 1] Therefore, it can be concluded that not only the nature of the waste can influence the production of PCDD/Fs, but also the amount of oxygen in the media should be adequate.…”

Section: Evolution Of Pcdd/fsmentioning

confidence: 96%

Pollutant Formation and Emissions from Cement Kiln Stack Using a Solid Recovered Fuel from Municipal Solid Waste

Conesa

Rey

Egea

et al. 2011

Environ. Sci. Technol.

103

View full text Add to dashboard Cite

The thermal decomposition of a Solid Recovered Fuel (SRF) has been studied by two techniques. First, laboratory-scale experiments were performed in a horizontal furnace in which different atmospheres are studied to analyze the dioxins and furans (PCDD/Fs) evolved from the decomposition of the material. Sulfur presence is revealed to be important in PCDD/Fs formation. In the second technique, the emission of various pollutants (PAHs, PCDD/Fs, metals, acid gases …) were determined in a cement kiln fed on different proportions of SRF material, and where a maximum feed rate of 15000 kg SRF/h was achieved. In the laboratory furnace the dioxin toxicity revealed a maximum when the amount of oxygen in the atmosphere increased until approximately stoichiometric conditions. In the cement kiln, all emitted pollutants are under the legal limits. No correlation between SRF input and metal emission was observed.

show abstract

“…Furthermore, the production rates of hydrogen, methane and carbon dioxide also varied with different N 2 /O 2 volume ratios, logically presenting the maximum emission of hydrogen and methane when the atmosphere N 2 , as there is not availability of oxygen to react with these compounds [6]. Also a work dealing with the thermal decomposition of these kind of wastes was done by Rausa and Pollesel [7], where the authors evaluate the chemicals generated during the decomposition.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, kinetics is the starting point to propose mechanisms for the thermal decomposition [6].…”

Section: Introductionmentioning

confidence: 99%

Modeling the thermal decomposition of automotive shredder residue

Conesa

Rey

Aracil

2015

J Therm Anal Calorim

View full text Add to dashboard Cite

The pyrolysis and combustion of automotive shredder residue (ASR) were studied by dynamic thermogravimetry and derivative thermogravimetry (TG-DTG) at heating rates of 5, 15 and 30 K min -1 at atmospheric pressure. For the simulation of pyrolysis and combustion processes two different kinetic models are proposed. One of them is based on the distribution of activation energies (DAEM), with three pools of reactants (three pseudocomponents) because of the complexity of the samples studied. The other model assumes a simple first-order decomposition of the three different fractions. The experimental thermogravimetric data of pyrolysis (oxygen absence) and combustion (at two different oxygen concentrations) processes were simultaneously fitted to determine a single set of kinetic parameters able to describe both processes at the different heating rates. The comparison of the models permits to discuss the importance to consider a distribution of activation energies. The experimental results and kinetic parameters may provide useful data for the design of thermal decomposition processing system using ASR as feedstock.

show abstract

Comparison between emissions from the pyrolysis and combustion of different wastes

Cited by 132 publications

References 30 publications

Pollutant formation in the pyrolysis and combustion of Automotive Shredder Residue

Pollutant formation in the pyrolysis and combustion of Automotive Shredder Residue

Pollutant Formation and Emissions from Cement Kiln Stack Using a Solid Recovered Fuel from Municipal Solid Waste

Modeling the thermal decomposition of automotive shredder residue

Contact Info

Product

Resources

About