Electron beam and pulsed corona processing of volatile organic compounds in gas streams

Penetrante, B. M.; Hsiao, M.C.; Bardsley, J. N.; Merritt, B.T.; Vogtlin, G.E.; Wallman, P.H.; Kuthi, A.; Bukhart, C. P.; Bayless, J. R.

doi:10.1351/pac199668051083

Cited by 69 publications

(43 citation statements)

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“…The diagram of the test system is shown in Figure 3 and results are shown in Figure 4. The data were DE-EE0003494 consistent with prior published work [2][3][4][5][6][7][8] and confirmed that it is important to characterize the electron beam oxidation for the family of compounds that will be used in the final application if absolute destruction efficiencies are to be determined. Note that, within a compound family, relative destruction efficiency (i.e., ease of oxidation) increases with increasing molecular complexity.…”

Section: Previous Experiments By Aebsupporting

confidence: 83%

Energy Efficient Removal of Volatile Organic Compounds (VOCs) and Organic Hazardous Air Pollutants (o-HAPs) from Industrial Waste Streams by Direct Electron Oxidation

Testoni¹

2011

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Section: Previous Experiments By Aebsupporting

confidence: 83%

Energy Efficient Removal of Volatile Organic Compounds (VOCs) and Organic Hazardous Air Pollutants (o-HAPs) from Industrial Waste Streams by Direct Electron Oxidation

Testoni¹

2011

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“…The value of the exponential folding factor α was shown (in previous works by Rosocha [3] and by Penetrante [12]) to be nearly constant, for the highest concentrations in the range of these experiments, independent of the concentration itself. Results from these experiments are in good agreement with this behavior of VOC destruction, as it is shown in Figure 3, Figure 4 and Figure 8.…”

Section: Discussion On the Results Of Voc Removal By Pulsed Corona DIsupporting

confidence: 52%

“…Gliding arc applications to plasma chemistry processes have been tested experimentally and demonstrated in industrial scale plants. Corona discharge application also has been proposed for removal of VOCs from liquid [2] and gas phase [12]. Both discharges generate non-equilibrium plasma, but they differ in the physical characteristics and in the level of power consumption.…”

Section: Introductionmentioning

confidence: 99%

Pulsed Corona Plasma Technology for Treating VOC Emissions from Pulp Mills

Fridman¹,

Gutsol²,

Kennedy³

et al. 2004

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Under the DOE Office of Industrial Technologies Forest Products program various plasma technologies were evaluated under project FWP 49885 "Experimental Assessment of Low-Temperature Plasma Technologies for Treating Volatile Organic Compound Emissions from Pulp Mills and Wood Products Plants". The heterogeneous pulsed corona discharge was chosen as the best non-equilibrium plasma technology for control of the vent emissions from HVLC Brownstock Washers. The technology for removal of Volatile Organic Compounds (VOCs) from gas emissions with conditions typical of the exhausts of the paper industry by means of pulsed corona plasma techniques presented in this work. For the compounds of interest in this study (methanol, acetone, dimethyl sulfide and α -pinene), high removal efficiencies were obtained with power levels competitive with the present technologies for the VOCs removal. Laboratory experiments were made using installation with the average power up to 20 W. Pilot plant prepared for on-site test has average plasma power up to 6.4 kW. The model of the Pilot Plant operation is presented.

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“…As for the origin of such VOC-derived radicals, i.e., the nature of the initiation steps of nonthermal plasma-induced VOC decay, reactions of VOC molecules with neutrals and radicals, notably O( 3 P) and • OH, are usually envisioned. However, increasing numbers of literature reports suggest that in some cases ionic initiation steps might prevail [7][8][9][10][11][12]. A major involvement of ions in nonthermal plasma chemistry is to be expected since gas-phase ion/molecule reactions are usually orders of magnitude faster than radical/molecule reactions.…”

mentioning

confidence: 99%

A mass spectrometry study of alkanes in air plasma at atmospheric pressure

Marotta

Paradisi

2008

J. Am. Soc. Mass Spectrom.

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The positive APCI-mass spectra in air of linear (n-pentane, n-hexane, n-heptane, n-octane), branched [2,4-dimethylpentane, 2,2-dimethylpentane and 2,2,4-trimethylpentane (i-octane)], and cyclic (cyclohexane) alkanes were analyzed at different mixing ratios and temperatures. The effect of air humidity was also investigated. Complex ion chemistry is observed as a result of the interplay of several different reagent ions, including atmospheric ions O 2 ϩ• , NO ϩ , H 3 O ϩ , and their hydrates, but also alkyl fragment ions derived from the alkanes. Some of these reactions are known from previous selected ion/molecule reaction studies; others are so far unreported. The major ion formed from most alkanes (M) is the species [M Ϫ H] ϩ , which is accompanied by M ϩ• only in the case of n-octane. Ionic fragments of C n H 2nϩ1 ϩ composition are also observed, particularly with branched alkanes: the relative abundance of such fragments with respect to that of [M Ϫ H] ϩ decreases with increasing concentration of M, thus suggesting that they react with M via hydride abstraction. The branched C 7 and C 8 alkanes react with NO ϩ to form a C 4 H 10 NO ϩ ion product, which upon collisional activation dissociates via HNO elimination. The structure of t-Bu ϩ (HNO) is proposed for such species, which is reasonably formed from the original NO ϩ (M) ion/molecule complex via hydride transfer and olefin elimination. . For air pollution control, different types of reactors and power supplies are being developed and tested for production of nonthermal plasmas by means of electrical discharges [3]. Following an initial phase devoted to prove the feasibility and competitiveness of the process in terms of energy and cost efficiency, research is presently focusing on the characterization of the chemistry-i.e., the products being released and the underlying chemical mechanisms-to develop a more efficient and cleaner process [5].In nonthermal plasmas, which are conveniently produced by electric corona discharges in air at atmospheric pressure, high-energy electrons induce ionization, excitation, and dissociation of the bulk gas molecules, N 2 and O 2 . The resulting reactive species, ionic and neutral as well as thermalized electrons, can attack molecules of organic pollutants present in the air, such as hydrocarbons and other volatile organic compounds (VOCs), and initiate a chain of reactions leading eventually to their oxidation. It is generally accepted that nonthermal plasma-induced VOC oxidation proceeds via VOC-derived organic radicals, R • , which are trapped by molecular oxygen and undergo further reactions as described for their tropospheric oxidation [6], leading eventually to CO 2 . As for the origin of such VOC-derived radicals, i.e., the nature of the initiation steps of nonthermal plasma-induced VOC decay, reactions of VOC molecules with neutrals and radicals, notably O( 3 P) and • OH, are usually envisioned. However, increasing numbers of literature reports suggest that in some cases ionic initiation steps might prevail [7][8][9...

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Electron beam and pulsed corona processing of volatile organic compounds in gas streams

Abstract: Abstract

Cited by 69 publications

References 0 publications

Energy Efficient Removal of Volatile Organic Compounds (VOCs) and Organic Hazardous Air Pollutants (o-HAPs) from Industrial Waste Streams by Direct Electron Oxidation

Energy Efficient Removal of Volatile Organic Compounds (VOCs) and Organic Hazardous Air Pollutants (o-HAPs) from Industrial Waste Streams by Direct Electron Oxidation

Pulsed Corona Plasma Technology for Treating VOC Emissions from Pulp Mills

A mass spectrometry study of alkanes in air plasma at atmospheric pressure

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