A Method for the Removal of Sulfur Dioxide from Exhaust Gas Utilizing Pulsed Streamer Corona for Electron Energization

Mizuno, Akira; Clements, J.S.; Davis, Robert H.

doi:10.1109/tia.1986.4504752

Cited by 184 publications

(59 citation statements)

References 6 publications

(7 reference statements)

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“…Several strategies have been identified in order to reduce toluene presence in civil and industrial emissions due to its noxiousness. As an emerging technology for environmental protection, Nonthermal plasma (NTP) has been subjected to extensive researches over the past 20 years (Mizuno et al, 1986;Masuda et al, 1988;Chang et al, 1991;Chang et al, 1996;Guo et al, 2006). The main advantages of NTP technology compared to the conventional technologies include moderate operation conditions (normal temperature and atmospheric pressure), moderate capital cost, compact system, easy operations and short residence times, etc.…”

Section: Introductionmentioning

confidence: 99%

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Zhu

Wan

et al. 2011

Int. J. Environ. Sci. Technol.

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A series of experiments were performed for toluene decomposition from a gaseous influent at normal temperature and atmospheric pressure by nonthermal plasma coupled with a combination of catalysts technology. Nonthermal plasma was generated by dielectric barrier discharge. γ-Al 2 O 3 was used to be a sorbent and a catalyst carrier. Nanocatalysts were MnO 2 /γ-Al 2 O 3 coupled with modified ferroelectric of nano-Ba 0.8 Sr 0.2 Zr 0.1 Ti 0.9 O 3 . γ-Al 2 O 3 played an important role in prolonging reaction time of nonthermal plasma with volatile organic compounds molecules. MnO 2 /γ-Al 2 O 3 has an advantage for ozone removal, while nano-Ba 0.8 Sr 0.2 Zr 0.1 Ti 0.9 O 3 is a kind of good ferroelectric material for improving energy efficiency. Thus these packed materials were incorporated together to strengthen nonthermal plasma power for volatile organic compounds decomposition. The results showed the synergistic technology resulted in greater enhancement of toluene removal and energy efficiencies and a better inhibition for ozone formation in the gas exhaust. Based on the data analysis of the Fourier transforms infrared spectrum, the reaction process of toluene decomposition and the mechanism of synergistic effect are discussed. The results showed in a complex oxidation mechanism of toluene via several pathways, producing either ringretaining or ringopening products. The final products were carbon dioxide and water.

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Section: Introductionmentioning

confidence: 99%

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Zhu

Wan

et al. 2011

Int. J. Environ. Sci. Technol.

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“…The removal of SO, and NO, from gaseous media was also investigated at laboratory scale using electrical-discharge reactors (pulsed corona) in the 1980s -with pioneering experimental work performed for NO, by (Masuda & Nakao 1990 [16]) and for SO, by [Mizuno et al 1986 f17j; and modeling work performed by (Gallimberti 1988 [ls]). Following these basic investigations, scaleup of the pulsed corona process for flue gases emitted from a coal-burning electrical power plant was carried out at pilot-plant and demonstration levels (Dinelli et al 1990 [19], Civitano et In this white paper, we will not attempt to describe NO, removal with the more-complicated chemical models because it is not necessary to do so.…”

Section: Decomposition Chemistry Of Oxides Of Nitrogenmentioning

confidence: 99%

Reactions of oxides of nitrogen (NO{sub x}) leading to the formation of nitric acid (HNO{sub 3}) in non-thermal plasmas (NTPs). White paper for the Strategic Environmental Research and Development Program (SERDP) (Compliance Project CP-1038: Development of non-thermal plasma reactor technology for control of atmospheric emissions)

Rosocha

Miziolek²,

Nusca³

et al. 1998

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(HAP) emission control (primarily volatile organic compounds -VOCs). In this white paper, as a SERDP-requested deliverable, we will verify the NO, removal reactions in NTPs, especially those converging on nitric acid (HNO,) as a primary reaction product. The benefit of making HNO, as a primary terminal de-NO, product is that it can be easily neutralized by relatively simple caustic (base) scrubbers -although the economics of scrubber systems needs to be compared with the conversion to particles that can be filtered or precipitated.Jet engines also emit a significant amount of SO, in their exhaust; NTPs alos remove SO, and actually do it more effectively in combination with NO,. This will not be dealt with in this particular white paper. BackgroundFree radicals, energetic electrons, and other active species are strongly reactive in decomposing

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“…The electrons can ionize and dissociate the neutral gas and thus produce various active radicals which remedy the hazardous by chemical reactions. Removal of air-pollutants by NTPs has been studied extensively in the last 20 years [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Determinations of Intermediate Neutral Species in Hydrocarbon Discharge Plasma

Liu

Wang

Xiao

et al. 2010

Plasma Chem Plasma Process

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This work reports laser ionization combined with Time-Of-Flight (TOF) mass spectrometry investigation on intermediate species in the hydrocarbon plasma of atmospheric-pressure fast-flow pulsed dc-discharge. All neutral intermediate species including transient radicals from benzene/Ar discharge have been characterized by a molecular beam sampling combined with TOF mass spectrometry. This shows that with a hydrocarbon gas mixture of 0.3% C 6 H 6 in Ar discharge the intermediate species consist of simple radicals (such as C 2 , C 5 H 5 , C 7 H 7 ) and polycyclic organic molecules (C 10 H 8 , C 13 H 10 , C 14 H 10 ). Theoretical studies on total energies and ionization potentials of the intermediate species have been carried out using the hybrid density functional theory. Effect of the ionization potential on mass spectral intensity has been discussed. Based on the observed data, the possible major neutral reaction channels of the plasma chemistry have been discussed. The developed experimental method has implications in volatile organic compounds removing and impurities diagnosis in Tokamak edge-plasma.

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A Method for the Removal of Sulfur Dioxide from Exhaust Gas Utilizing Pulsed Streamer Corona for Electron Energization

Cited by 184 publications

References 6 publications

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Determinations of Intermediate Neutral Species in Hydrocarbon Discharge Plasma

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