SO 2 , NO x , HF, HCl and PCDD/Fs emissions during Co-combustion of bituminous coal and pickling sludge in a drop tube furnace

Zhang, Shaorui; Jiang, Xuguang; Lv, Guojun; Liu, Baoxuan; Jin, Yuqi; Yan, Jun

doi:10.1016/j.fuel.2016.08.061

Cited by 77 publications

(25 citation statements)

References 26 publications

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“… 15 Zhang et al studied various emission characteristics during the burning of bituminous coal and pickling sludge and found that the conversion rate of fuel Cl to HCl was less than 40% because of the short residence time in the reactor. 16 Estelle et al found that combustion temperature was the main factor affecting HCl emissions. 17 Wang et al found that the chlorine content and air flow rate of the sample during the combustion process had a relatively little effect on the distribution of chlorine.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion

Tan²,

et al. 2020

ACS Omega

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With the addition of Ca(OH) 2 , the effects of combustion temperature, moisture, sludge particle size, and chlorine-containing additives on the removal of HCl during sludge combustion were studied. The experimental results showed that combustion temperature and moisture content promoted the formation of HCl and Ca(OH) 2 played a key role in the formation of HCl during sludge combustion. Under the best conditions of a sludge particle size of 380–250 μm, moisture content of 5%, temperature of 850 °C, and Ca(OH) 2 /sludge weight ratio of 3/10, the HCl capture efficiency was 79.81%. In addition, the effect of PVC on the production of HCl was greater than that of NaCl, probably because the lattice energy of NaCl was much higher, indicating that inorganic chlorine was not the main source of HCl. Ca(OH) 2 can effectively inhibit the formation of HCl, which had practical guiding significance for the formation of HCl during the sludge combustion, especially the sludge containing chlorine.

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Section: Introductionmentioning

confidence: 99%

Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion

Tan²,

et al. 2020

ACS Omega

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“…The recent utilization of Cl‐containing flocculants and conditioners in wastewater treatment and deep dewatering has further increased the Cl content of sludge (Zhang, Liu, Liu, Hu, & Yao, ). The high P availability of sludge and its co‐combustion with MSW add Cl, S, and P to the co‐incineration systems (Li et al., ; Lin & Ma, ; Zhang et al., ). Also, the bottom slag formed during the co‐incineration of sludge, MSW, and coal contains such main minerals as SiO 2 , Al 2 O 3 , and CaO which can act as the carriers of different forms for the adsorption of HMs (Zhou, Sun, Meng, Li, & Zhang, ).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic equilibrium predictions of zinc volatilization, migration, and transformation during sludge co‐incineration

Liu

Cai

et al. 2019

Water Environment Research

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The effects of interactions between and among chlorine (Cl), sulfur (S), phosphorus (P), and minerals on migration, transformation, and volatilization of zinc (Zn) were numerically simulated in sludge co-incineration using the chemical thermodynamic equilibrium method. Our results showed that all the minerals of Fe 2 O 3 , Al 2 O 3 , Fe 2 O 3 , and TiO 2 except for CaO in the sludge co-incineration system reacted with Zn which inhibited the Zn volatilization. The presence of S and P was beneficial to the formation of ZnSO 4 (s) and Zn 3 (PO 4 ) 2 (s). Cl weakened the chemical reactions between the minerals and Zn, thus increasing the Zn volatilization. Changes in Zn transformation and migration induced by the coupling of Cl + S were mainly controlled by Cl, S, and the minerals, while those induced by Cl + P and S + P were mainly controlled by P and S + P. The presence of P + Cl, S + Cl, S + P, S + Cl + P, Cl, and Al 2 O 3 in the coexisting mineral system controlled the reactions between the minerals and Zn.

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“…The control of pollutants in the exhaust gas has also gained attention. Areeprasert et al, Hroncová et al, and Zhang et al discussed the distribution characteristics of NO X , SO 2 , and others from different perspectives and pointed out that using CaO as a catalyst resulted in the expected results …”

Section: Introductionmentioning

confidence: 99%

“…The control of pollutants in the exhaust gas has also gained attention. Areeprasert et al, Hroncová et al, and Zhang et al [23][24][25] discussed the distribution characteristics of NO X , SO 2 , and others from different perspectives and pointed out that using CaO as a catalyst resulted in the expected results. 26 The above summary of the literature indicates that the technology of sludge and coal as a blended fuel is currently still in the research phase, and the complete experimental data and theoretical analysis are scarce.…”

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confidence: 99%

Experimental investigation on co-combustion kinetics and gas emission law of sewage sludge-bituminous coal

Yang

et al. 2018

Int J Energy Res

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Summary The kinetic mechanism of the co‐combustion of sewage sludge (SS) and bituminous coal (BC) is studied. The separate combustion process of the SS can be divided into four stages, as follows: moisture precipitation, volatile precipitation, non‐volatile substance precipitation, and fixed carbon burnout. During the co‐combustion of the mixture, SS and BC maintained their respective combustion properties. The SS can significantly improve the ignition and combustion performance of BC. Through Fourier transform infrared spectroscopy analysis, we found that the main combustible component in the SS is the volatile organic matter, and the main emission product is CO2. These results provide a theoretical basis for the new technology of combined power generation of SS energy recycling.

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SO 2 , NO x , HF, HCl and PCDD/Fs emissions during Co-combustion of bituminous coal and pickling sludge in a drop tube furnace

Cited by 77 publications

References 26 publications

Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion

Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion

Thermodynamic equilibrium predictions of zinc volatilization, migration, and transformation during sludge co‐incineration

Experimental investigation on co-combustion kinetics and gas emission law of sewage sludge-bituminous coal

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SO 2 , NO x , HF, HCl and PCDD/Fs emissions during Co-combustion of bituminous coal and pickling sludge in a drop tube furnace

Cited by 77 publications

References 26 publications

Effect of Ca(OH)2 on the Release Characteristics of HCl during Sludge Combustion

Effect of Ca(OH)2 on the Release Characteristics of HCl during Sludge Combustion

Thermodynamic equilibrium predictions of zinc volatilization, migration, and transformation during sludge co‐incineration

Experimental investigation on co-combustion kinetics and gas emission law of sewage sludge-bituminous coal

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Product

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Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion

Effect of Ca(OH)₂ on the Release Characteristics of HCl during Sludge Combustion