Particulate matter formation during shoe manufacturing waste combustion in a full-scale CFB boiler

Zhou, Zhipeng; Qiu, Xinglei; Wang, Yueming; Duan, Yuanqiang; Li, Lin; Lin, Han; Luo, Yihong; Sun, Zhenkun; Duan, Lunbo

doi:10.1016/j.fuproc.2021.106914

Cited by 16 publications

(2 citation statements)

References 36 publications

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“…Based on the vigorous development of solid waste coprocessing in high-temperature industrial kilns in China, research on the emission and distribution characteristics of PCDD/Fs during co-processing has become particularly important. Compared to other industrial kilns, circular uidized bed (CFB) boilers provide the advantages of a higher combustion e ciency, more stable combustion temperature, and lower pollutant emissions (Zhou et al, 2021). Current research on PCDD/Fs emission and distribution in solid waste co-processing involving CFB boilers mainly focuses on two aspects.…”

Section: Introductionmentioning

confidence: 99%

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Cui

Liu

et al. 2022

Environ Sci Pollut Res

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Field studies were conducted to study the emission and distribution characteristics of dioxins by elevating the chloring concentration in feedstock in a 600MW circular uidized bed (CFB) boiler. The concentration and total equivalent quantity of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in all ue gas, electrostatic ash, cloth bag ash and boiler ash samples under blank condition (i.e., feedstock was normal coal) and chlorine labelling condition (i.e., feedstock mixed with coal and chlorine-containing labelling agent) were analyzed. Results illustrated that the concentration of PCDD/Fs in all gaseous and ash samples increased with the addition of chlorine in feedstock, with the largest and least increment in dioxin concentration observed in electrostatic ash and ue gas. PCDDs were the predominate congeners in ue gas, accounted for 50.1-60.4%of the total PCDD/Fs concentration under chlorine labelling and blank conditions, while PCDD/Fs distribution changed from PCDD-to PCDF-predominate by increasing chlorine content in feedstock under all eld test conditions: 46.6-92.9%, 34.0-76.1%, and 47.0-53.1% of PCDFs were distributed in electrostatic ash, cloth bag ash, and boiler ash, respectively. Highly chlorinated PCDD/F congeners such as O 8 CDD/F and 1,2,3,4,6,7,8-H 7 CDD/F were the primary contributors to dioxins concentration in ue gas and boiler ash samples, whereas low-chlorinated 2,3,7,8-T 4 CDF and 1,2,3,7,8-P 5 CDF congeners became critically dominating in electrostatic and cloth bag ash.

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Section: Introductionmentioning

confidence: 99%

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Cui

Liu

et al. 2022

Environ Sci Pollut Res

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“…Circulating fluidized bed (CFB) technology is proved suitable for burning low-grade fuels thanks to its high efficiency, low pollutant emission and good economy [38][39][40]. HSC can be blended with coal gangues and burnt in CFB to establish stable ash circulation flow.…”

Section: Introductionmentioning

confidence: 99%

Co-Firing Zhundong Coal with Its Gangue: Combustion Performance, Sodium Retention and Ash Fusion Behaviors

et al. 2022

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Fouling and slagging are intractable ash-related problems for boilers burning high-sodium coals (HSC) to produce electricity or heat. Reduction and resource utilization of solid waste, coal gangues, is urgent because of stringent environmental regulations and economic benefits. Based on the sodium-rich character of Zhundong coal (ZDC) and the mineralogical features of the coal gangues (ZDG), this work investigated their co-firing performance, the sodium retention behaviors as well as the slagging and fouling tendency of the ashes. Results show that combustion performance of ZDC is not reduced despite ofthe lower reactivity of ZDG. The co-firing reaction follows the 3D diffusion model (cylinder symmetry) which probably reflects the gas diffusion of oxygen to combustible matter. During co-firing, the enriched silica and alumina components in ZDG efficiently react with the alkali and alkaline earth metals (sodium, magnesium and calcium) in ZDC to form complex minerals, thus effectively capturing and retaining sodium. The slagging and fouling propensity of ashes are notably reduced. Overall, co-firing provides an alternative means to solve the ash slagging and fouling issues, and also for the reduction and resource utilization of coal gangues.

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Thermochemical conversion of multiple alkali metals in food waste pellet with a core-shell structure

Cheng

Chen

Lyu

et al. 2023

Energy

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Particulate matter formation during shoe manufacturing waste combustion in a full-scale CFB boiler

Cited by 16 publications

References 36 publications

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Co-Firing Zhundong Coal with Its Gangue: Combustion Performance, Sodium Retention and Ash Fusion Behaviors

Thermochemical conversion of multiple alkali metals in food waste pellet with a core-shell structure

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