Formation of dioxins on NiO and NiCl2 at different oxygen concentrations

Yang, Jie; Yan, Mi; Li, Xiaodong; Lu, Shengyong; Chen, Tong; Yan, Jun; Olie, K.; Buekens, Alfons

doi:10.1016/j.chemosphere.2015.03.077

Cited by 15 publications

(3 citation statements)

References 29 publications

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“…The area ratio of Fe 2+ to Fe 3+ increases for both used catalysts (Table ), which indicates the reduction of Fe and, in turn, 2‐CPh oxidation. Yang et al . reported reduction of Ni (NiO and NiCl 2 ) during the formation of dioxins on the surface of these two catalysts in spite of the presence of oxygen in the reaction.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of 2‐Chlorophenol on the Surface of Silica‐ and Alumina‐Supported Iron Oxide: An FTIR and XPS Study

et al. 2017

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Abstract2-chlorophenol (2-CPh) adsorption on the surface of silica, alumina, silica-and aluminasupported iron oxides at 30 °C and 250 °C was examined. The formation of a carbanion chlorophenolate/chlorophenoxy radical intermediate on the surface of silica and alumina surfaces is identified by in-situ FTIR analysis. The IR spectra of 2-CPh adsorbed on the supported iron oxide at 250 °C highlight significant differences in the adsorption complex between 2-CPh and the two supported iron oxides ( silica and alumina).Under conditions of low coverage of 2-CPh on the surface of these catalysts, FTIR analysis suggests that the adsorption of 2-CPh on the surface of silica-supported iron oxide commences with the formation of a chlorophenolate species, where in contrast 2-CPh creates a surface formate species on alumina-supported iron oxide. Moreover, stronger bonds of 2-CPh, and higher concentration of the carbonate species, are evident on the alumina surfaces, based on both FTIR and XPS analyses.

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Section: Resultsmentioning

confidence: 99%

Adsorption of 2‐Chlorophenol on the Surface of Silica‐ and Alumina‐Supported Iron Oxide: An FTIR and XPS Study

et al. 2017

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“…The influence of catalysts and selected additions on these pathways have also been studied (Wielgosiński et al, 2016). Model fly ash is used in several publications to determine the influence of PCDD/F precursors (Mubeen et al, 2017), catalysts such as copper (Masaki et al, 2008;Zhang et al, 2021), chrome (Zhang et al, 2020) or other metals (Verhulst et al, 2014), oxygen concentration (Yang et al, 2015), and other process parameters like temperature on their formation patwhays.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of the formation and destruction of PCDD/Fs in a laboratory tubular furnace

Palmer¹,

Pou²,

Díaz-Ferrero

et al. 2021

Chemosphere

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“…A review by McKay (2002) suggests that dioxin formation in combustion processes generally depend on the operating conditions such as temperature and oxygen levels/content (Yang et al, 2015). Other factors include characteristics of input material including the aromatic and chlorine content (Preto et al, 2005;Shibamoto et al, 2007) in both fuels and feed/raw materials.…”

Section: Emission Levels and Trends Of Pcdd/fs And Pcbs For Fuel Blenmentioning

confidence: 99%

Reduction of Persistent Organic Pollutant Emissions during Incinerator Start-up by Using Crude Waste Cooking Oil as an Alternative Fuel

Chen

Lee

Mwangi

et al. 2017

Aerosol Air Qual. Res.

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Illegal harvesting and recycling of waste cooking oil, also referred to as "gutter oil" in many countries, poses a great food safety threat. Thus, in this study the feasibility of using waste cooking oil as an auxiliary fuel in the furnace of laboratory waste incinerator was evaluated in terms of toxic pollutant emissions. Two fuel blends (W20D80 and W40D60) were blended from varying proportions of diesel fuel (D100), and waste cooking oil (W100) and their physio-chemical characteristics were subsequently determined and compared. Thermogravimetry analysis (TGA) and derivative thermogravimetry (DTG) of D100, W100, W20D80 and W40D60 showed that diesel fuel consist of more volatile short aliphatic hydrocarbons, while the waste cooking oil and its blends had more thermal stable unsaturated long chain molecules. After the de novo synthesis window of 200-400°C, 40% of waste cooking oil and 60% of diesel (W40D60) was injected at around 500-700°C, and reduced the toxicity concentrations of PCDD/Fs and PCBs by an average of 86% and 94%, respectively. This study demonstrated that, by using waste cooking oil as a fuel blend, not only can reduce the possibility of "gutter oil" being put in the food to damage the health of human beings, but also can be recycled as a kind of green fuel to reduce the emissions of persistent organic pollutants (POPs).

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Formation of dioxins on NiO and NiCl2 at different oxygen concentrations

Cited by 15 publications

References 29 publications

Adsorption of 2‐Chlorophenol on the Surface of Silica‐ and Alumina‐Supported Iron Oxide: An FTIR and XPS Study

Adsorption of 2‐Chlorophenol on the Surface of Silica‐ and Alumina‐Supported Iron Oxide: An FTIR and XPS Study

Kinetics of the formation and destruction of PCDD/Fs in a laboratory tubular furnace

Reduction of Persistent Organic Pollutant Emissions during Incinerator Start-up by Using Crude Waste Cooking Oil as an Alternative Fuel

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