Filtration properties of carbon woven fabric filters supplied with high voltage for removal of PM 1.0 particles

Wang, Qiannan; Khan, Farzana; Wei, Lubin; Huang, Shen; Zhang, Chuyang; Qiu, Yiping

doi:10.1016/j.seppur.2016.11.054

Cited by 24 publications

(4 citation statements)

References 31 publications

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“…The tail gas is a major concern of this pyrolysis process, which was identified as H 2 O, CO 2 , organic compounds (e.g., C 6 H 6 (benzene), C 7 H 9 (toluene) and CH 4 ), and chlorine-containing compounds (e.g., HCl and LiClO 4 ), of which CO 2 emission is mostly prevented under the relatively low temperature. For the treatment of flue gas, according to previously published studies, the dust can be collected by electrostatic precipitation or fabric precipitation, while the chlorine-contained products can be easily and selectively absorbed by spray drying with water or Ca-based alkaline sorbents. − The organic gases may be purified by active carbon adsorption or catalytic combustion, which may also allow the utilization of their heat value by circulating generated heats. In addition, polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), known as dioxin-related compounds, were hardly produced in the inert atmosphere without O 2 .…”

Section: Resultsmentioning

confidence: 99%

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Meng

Huang

Gao

et al. 2022

ACS Sustainable Chem. Eng.

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Finding green and profitable recovery methods has always been a great challenge for Li/Co recovery from LiCoO2 (LCO) in waste lithium-ion batteries (LIBs). A top priority was specially proposed on energy and material consumptions for the industrialization of carbothermal technology from an economic point of view. Meanwhile, pollution caused by plastic wastes including polyvinyl chloride (PVC) plastics has already become a serious environmental issue. Therefore, in this study, we proposed a PVC–LCO synergetic pyrolysis strategy for Li/Co recovery. Results showed that the LiCoO2 was fully destructed to Li2CO3, CoO, Co, and Cl-containing salts at 450 °C for 90 min with a PVC/LCO mass ratio of 1:1. The reaction temperature was decreased significantly in comparison to the ever-reported values of the carbothermal technology. High-purity Li and Co were then separated simply by water leaching, with a recovery rate of 92.50 and 94.85%, respectively. Simultaneous thermogravimetric–mass analysis, thermodynamic analysis, and density functional theory revealed the reaction mechanisms as three-stage PVC cracking together with Li/Co–Cl bond formation after Cl adsorption on surface Li/Co of LCO. Overall, the PVC synergetic pyrolysis strategy possessed distinct advantages owing to the remarkable energy-conserving and chemical-free features and provided an economical, green, and scalable solution for LIB recycle.

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Section: Resultsmentioning

confidence: 99%

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Meng

Huang

Gao

et al. 2022

ACS Sustainable Chem. Eng.

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“…It is worth mentioning that filter absorbers do not neutralize toxic substances, but only filter and adsorb them. Therefore, technical conditions have been developed for each type of filter absorber; they contain operational and protective requirements, including permissible air flow resistance, sorption capacity, and protection time for selected substances, taking into account their type (acidic, alkaline, or organic/inorganic) [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Air Pollution and Radiation Monitoring in Collective Protection Facilities

Kołacz

Wiśnik-Sawka

Maziejuk

et al. 2023

Sensors

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It has become increasingly important to monitor environment contamination by such chemicals as chemical warfare agents (CWAs) and industrial toxic chemicals (TICs), as well as radiation hazards around and inside collective protection facilities. This is especially important given the increased risk of terrorist or military attacks. The Military Institute of Chemistry and Radiometry (MICR) has constructed and developed the ALERT device for the effective monitoring of these threats. This device uses sensors that detect chemical and radiological contaminations in the air. The CWA detector is an ion mobility spectrometer, TICs are detected by electrochemical sensors, and radiation hazards are detected via Geiger–Muller tubes. The system was designed to protect the crew from contamination. When chemical or radioactive contamination is detected at the air inlet for the shelter, air filtration through a carbon filter is activated. At this time, the air test procedure at the filter outlet is started to test the condition of the filter on an ongoing basis. After detecting contamination at the filter outlet, the system turns off the air pumping and the service can start the procedure of replacing the damaged carbon filter. This paper presents the results of laboratory testing of the ALERT gas alarm detector, which showed high measurements for important parameters, including sensitivity, repeatability, accuracy, and speed.

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“…In the field of dust removal, fibrous filters or bag filters show excellent filtration efficiency in the capture of industrial dust due to their large specific surface, low base weight, and small pore sizes. [1][2][3][4] Nevertheless, the fibrous filter that relies solely on mechanical capture mechanisms still has some drawbacks. 5 Generally, the mechanical capture mechanisms, such as Brownian diffusion, direct interception, inertia impaction, and gravity settling, are not effective enough for removing the smaller particles, such as PM 2.5.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and evaluation of aramid fiber/polytetrafluoroethylene emulsion/tourmaline particle composite filter media: Filtration performance, thermal behavior, and mechanical property

Cheng

Shen

et al. 2022

Journal of Industrial Textiles

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An electrostatically enhanced aramid fiber/polytetrafluoroethylene emulsion/tourmaline particle (AF/PTFE/TM) composite filter media was successfully designed and fabricated by impregnation technology, especially for harsh industrial environment with high temperature. The AF/PTFE/TM composite filter media exhibited the optimum quality factor when the concentration of PTFE emulsion was 10% and the content of TM particles was 12.5 g/cm2. The collection efficiency, pressure drop characteristic, thermal decomposition behavior and kinetics, and tensile strength in machine and cross directions of the composite filter media have been systematically evaluated. Benefiting from the pyroelectricity and piezoelectricity of TM particles, the composite filter media has better collection efficiency with the increase of incoming air temperature. With the increase of flow velocity, the decrease of collection efficiency is smaller than the filter media without TM particles. Meanwhile, the pressure drop across the composite filter media is a little higher than that across the raw filter media. Additionally, it was found PTFE emulsion coating can improve the thermal stability and tensile strength of the composite filter media. TM particles have no negative impact on the thermal behavior of the composite filter media, but slightly attenuates the enhancement in tensile strength. This study provides new insight into the application of TM particles as well as other pyroelectric and piezoelectric materials in industrial filtration.

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Filtration properties of carbon woven fabric filters supplied with high voltage for removal of PM 1.0 particles

Cited by 24 publications

References 31 publications

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Air Pollution and Radiation Monitoring in Collective Protection Facilities

Fabrication and evaluation of aramid fiber/polytetrafluoroethylene emulsion/tourmaline particle composite filter media: Filtration performance, thermal behavior, and mechanical property

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Filtration properties of carbon woven fabric filters supplied with high voltage for removal of PM 1.0 particles

Cited by 24 publications

References 31 publications

Green and Energy-Saving Recycling of LiCoO2 by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Green and Energy-Saving Recycling of LiCoO2 by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Air Pollution and Radiation Monitoring in Collective Protection Facilities

Fabrication and evaluation of aramid fiber/polytetrafluoroethylene emulsion/tourmaline particle composite filter media: Filtration performance, thermal behavior, and mechanical property

Contact Info

Product

Resources

About

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics

Green and Energy-Saving Recycling of LiCoO₂ by Synergetic Pyrolysis with Polyvinyl Chloride Plastics