Dioxins from Biomass Combustion: An Overview

Zhang, Mengmei; Buekens, Alfons; Li, Xiaodong

doi:10.1007/s12649-016-9744-5

Cited by 70 publications

(37 citation statements)

References 107 publications

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“…The above-mentioned solution made it possible to avoid RDF moisture increase and higher chlorine content in the product of the disinfection process-this is particularly important in the context of avoiding dioxin emissions during the incineration of RDF [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Mixed Municipal Solid Waste Hygienisation for Refuse-Derived Fuel Production by Ozonation in the Novel Configuration Using Fluidized Bed and Horizontal Reactor

Wolny-Koładka

Żukowski

2017

Waste Biomass Valor

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Section: Introductionmentioning

confidence: 99%

Mixed Municipal Solid Waste Hygienisation for Refuse-Derived Fuel Production by Ozonation in the Novel Configuration Using Fluidized Bed and Horizontal Reactor

Wolny-Koładka

Żukowski

2017

Waste Biomass Valor

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“…can later react with CuCl 2 eliminating the chlorination agent and decreasing the chlorinated species formed. In 206 the case of sulphur compounds, the SO 2 produced can react with Cl 2 to form SO 3 and HCl that are much less 207 reactive in the de-novo synthesis (Zhang et al, 2017). 208…”

Section: Effect Of Cucl 2 and Inhibitors On Thermal Decomposition Of mentioning

confidence: 99%

Inhibiting fly ash reactivity by adding N- and S- containing compounds

2018

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The inhibitory effect of thiourea (TUA), ammonium thiosulfate (TSA) and amidosulfonic acid (ASA) on the reactivity of fly ash air was investigated using a thermobalance at different heating rates (5, 10 and 20 K min). A model fly ash (activated carbon + 50 wt% CuCl·2HO, pyrolyzed at 700 °C and washed) was used as carbonaceous material. Adding CuCl·2HO to the activated carbon led to an increased rate of decomposition with the air's oxygen. TUA and TSA behaved in a similar way, accelerating the decomposition of the model fly ash. ASA also accelerated the decomposition but to a lower extent. We postulate that the increase in decomposition rate is caused by a reaction between carbonaceous material and N and S-containing compounds. The formation of nitrogenated and sulphured compounds was confirmed by TG-MS. A kinetic model based on a single reaction of order 0.6 showed very good correlations with all the heating rates tested in oxidant atmosphere.

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“…Despite the fact that HCl is formed during combustion of coal or biomass currently the chloride emission standards are limited only for incinerators of waste [10]. Chlorine products of combustion, such as HCl or toxic polychlorinated dibenzo-para-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) [11][12][13] could be emitted into the atmosphere, where they may pose a risk for human health and the environment (acid rain) [14]. In addition molecular chlorine presence in the combustion chamber leads to intensification of chlorine corrosion of the superheater tubes [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Hydrogen Chloridein The Fluidized Bed Reactor

Olek

Żukowski

Baron

2019

Ecological Chemistry and Engineering S

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Combustion of fuels, including renewable fuels and thermal treatment of waste (CFCs, pesticides), is associated with emissions of pollutants including halogens. The reversible process of sorption/desorption of HCl, in a fluidized (bubbling) bed reactor (BFB), during co-combustion of Cl-materials, was carried out. The thermal decomposition of methylene chloride (DCM, CH2Cl2) in an inert sand bed with the addition of the hydroxyapatite sorbent (HAp, Ca5(PO4)3(OH)) was investigated. The process parameters were as follows: temperature - 930 °C, the air excess - 1.3, stream rate of CH2Cl2 - 50 cm3/h. The concentration of HCl, CCl4, CHCl3, CH2Cl2, CH3Cl, COCl2 in the exhaust gases were monitored online with FTIR spectroscopy. The main chlorine product was hydrogen chloride. Samples of unprocessed HAp, taken from the bed during the process, and solid apatite residues were analyzed by X-ray diffraction (XRD). The content of chlorapatite (Ca5(PO4)3Cl) in the analyzed samples was respectively 11, 53 and 19 %. X-ray fluorescence (XRF) analysis showed the molar ratio of Ca:P:Cl was: 1.00:0.36:0.01, 1.00:0.36:0.09, 1.00:0.37:0.04 respectively. The HAp could be used as an sorbent of the HCl(g) during combustion of materials containing chlorine.

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Dioxins from Biomass Combustion: An Overview

Cited by 70 publications

References 107 publications

Mixed Municipal Solid Waste Hygienisation for Refuse-Derived Fuel Production by Ozonation in the Novel Configuration Using Fluidized Bed and Horizontal Reactor

Mixed Municipal Solid Waste Hygienisation for Refuse-Derived Fuel Production by Ozonation in the Novel Configuration Using Fluidized Bed and Horizontal Reactor

Inhibiting fly ash reactivity by adding N- and S- containing compounds

Sorption of Hydrogen Chloridein The Fluidized Bed Reactor

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