Controlling Industrial Particulate Emissions: A Practical Overview of Baghouse Technology

Cora, Mario G.; Hung, Yung Tse

doi:10.1002/tqem.10041

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Cora and Hung mention that although baghouses are designed for 99-99.9% particulate collection/removal efficiencies, actual operating removal efficiencies may differ slightly, down to the level of 95%. 70 Despite solid and liquid particulate emissions not being of primary interest here, volatile organic compound emissions may result from the release of uncaptured particulates. Organic odor compounds represent an important industrial example, originating as a gas or particulates.…”

Section: Liquid And/or Solid Particulate Scrubbing In Briefmentioning

confidence: 99%

Assessment of Industrial VOC Gas-Scrubber Performance

Saitô¹

2004

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Gas scrubbers for air-pollution control of volatile organic compounds (VOC) cover a wide range of technologies. In this review, we have attempted to evaluate the single-pass scrubber destruction and removal efficiencies (DREs) for a range of gas-scrubber technologies. We have focused primarily on typical industrial DRE s for the various technologies, typical problems, and any DRE-related experiential information available. The very limited literature citations found suggest significant differences between actual versus design performance in some technologies. The potentially significant role of maintenance in maintaining DREs was also investigated for those technologies. • An in-depth portrayal of the entire gas scrubbing industry is elusive. • Available literature sources suggest significant differences between actual versus design performance in some technologies. • Lack of scrubber system maintenance can contribute to even larger variances. • "Typical" industrial single-pass performance of commonly used VOC gas scrubbers generally ranged from ~80 to 99%. • Imperfect solid and/or liquid particulates capture (possibly as low as 95% despite design for 99+% capture efficiency) can also lead to VOC releases. • Changing the VOC composition in the gas stream without modifying scrubber equipment or operating conditions could also lead to significant deterioration in attainable destruction and removal efficiencies.

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Section: Liquid And/or Solid Particulate Scrubbing In Briefmentioning

confidence: 99%

Assessment of Industrial VOC Gas-Scrubber Performance

Saitô¹

2004

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“…are used by industries to control particulate matter emissions into atmosphere (Rao 1994;Jiao and Zheng 2007;Shanthakumar et al 2008). Recent studies suggest utilisation of hybrid technologies that incorporate the best features of control equipments to overcome limitations of single air pollution control equipment (Cora and Hung 2002 ;Ortiz et al 2007). Similarly, the removal techniques of gaseous pollutants like oxides of sulphur (Lee et al 2005), oxides of Nitrogen (Mok and Lee 2006) and other odours compound (Couvert et al 2006) also has been evolved (Mohanty et al 2009;Jeona et al 2008) On the other hand, optimization has become a major enabling area and evolved from a methodology of academic interest into a technology that has continues to make a significant impact (Biegler and Grossmann 2004).…”

Section: Introductionmentioning

confidence: 99%

Selection of Optimal Air Pollution Control Strategies

.¹

2015

IJRET

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Sustainable development needs social, economic, energy and environmental sustainability. We propose a model to minimize the total cost consisting of economic cost of pollution control equipment, health cost because of pollutants emissions. We developed a Mixed Integer Non Linear Programming (MINLP) based model for selection of optimal air pollution control strategy. The model considers multiple pollutants, multiple emission sources and multiple control equipments. Constraints like budget and efficiency of control equipment are included in the model. Affect of emission norms on total cost is discussed. The efficacy of the proposed model is explained by considering simulation case studies of a typical cement plant and a thermal power plant.

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“… 4 − 7 (2) Conventional methods are energy intensive; thick filters and low void space result in a large pressure drop over the filter which must be overcome. 1 , 3 , 8 A bag filter for the filtration of 100 000 m 3 waste gas requires roughly 36 kWh of energy to operate, not accounting for the energy required to compress air. 9 In 2010 alone, the energy cost for industrial gas waste filtration was estimated to be as high as ∼20 TWh just in China.…”

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confidence: 99%

“…Moreover, there is a thin polymer layer coating these nanoflakes, which acts as a shell protecting the flakes. We attribute the formation of the electrospun TPP@Nylon-6 core−shell structure to the following: (1) The solubility difference between Nylon-6 and TPP in the solvent, in which TPP shows much higher solubility compared with Nylon-6. As the solvent evaporates during electrospinning, Nylon-6 precipitates earlier than TPP, forming the shell of the nanofiber, while the TPP remains soluble in the remnant solvent and deposits inside the Nylon-6 shell as the solvent evaporates.…”

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confidence: 99%

“…Dust filtration is crucial for minimizing air pollutant emissions in industrial processes, with conventional air-filtering devices, e.g., baghouses, seeing wide deployment in industries such as power generation, chemical production, and agricultural processing. − However, current dust filtration systems remain limited by the following challenges: (1) Commonly used devices such as baghouses use wovens composed of micrometer-sized fibers for filtration and thus have low filtration efficiencies (<95%) and perform especially poorly for particulate matter (PM) below 1 μm, , which contributes significantly to the serious PM air pollution seen in developing countries. − (2) Conventional methods are energy intensive; thick filters and low void space result in a large pressure drop over the filter which must be overcome. ,, A bag filter for the filtration of 100 000 m 3 waste gas requires roughly 36 kWh of energy to operate, not accounting for the energy required to compress air . In 2010 alone, the energy cost for industrial gas waste filtration was estimated to be as high as ∼20 TWh just in China .…”

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Core–Shell Nanofibrous Materials with High Particulate Matter Removal Efficiencies and Thermally Triggered Flame Retardant Properties

Liu

Hsu

et al. 2018

ACS Cent. Sci.

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Dust filtration is a crucial process for industrial waste gas treatment. Great efforts have been devoted to improve the performance of dust filtration filters both in industrial and fundamental research. Conventional air-filtering materials are limited by three key issues: (1) Low filtration efficiency, especially for particulate matter (PM) below 1 μm; (2) large air pressure drops across the filter, which require a high energy input to overcome; and (3) safety hazards such as dust explosions and fires. Here, we have developed a “smart” multifunctional material which can capture PM with high efficiency and an extremely low pressure drop, while possessing a flame retardant design. This multifunctionality is achieved through a core–shell nanofiber design with the polar polymer Nylon-6 as the shell and the flame retardant triphenyl phosphate (TPP) as the core. At 80% optical transmittance, the multifunctional materials showed capture efficiency of 99.00% for PM2.5 and >99.50% for PM10–2.5, with a pressure drop of only 0.25 kPa (0.2% of atmospheric pressure) at a flow rate of 0.5 m s–1. Moreover, during direct ignition tests, the multifunctional materials showed extraordinary flame retardation; the self-extinguishing time of the filtrate-contaminated filter is nearly instantaneous (0 s/g) compared to 150 s/g for unmodified Nylon-6.

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Controlling Industrial Particulate Emissions: A Practical Overview of Baghouse Technology

Cited by 12 publications

References 5 publications

Assessment of Industrial VOC Gas-Scrubber Performance

Assessment of Industrial VOC Gas-Scrubber Performance

Selection of Optimal Air Pollution Control Strategies

Core–Shell Nanofibrous Materials with High Particulate Matter Removal Efficiencies and Thermally Triggered Flame Retardant Properties

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