Destruction of hydrocarbons in non-thermal, ambient-pressure, capillary discharge plasmas

A. Koutsospyros, S. M. Yin, C. Christodoulatos, K. Becker

Research output: Contribution to journalArticle

Abstract

This present work investigates the effectiveness of non-thermal diffuse plasmas for the destruction of environmental contaminants that are present in trace concentrations in respirable atmospheres. Parametric studies were carried out using three atmospheric-pressure capillary plasma reactors of varying geometry. Volatile aliphatic and aromatic hydrocarbons, at concentrations of up to several hundred parts per million (ppm), were used as prototypical compounds for these studies. Parameters studied included the reactor volume, the species residence time, the specific energy input, and the influent contaminant concentration. Moreover, the dependence of the overall destruction efficiency on specific energy, contaminant type, and presence of other contaminants in well-defined contaminant mixtures was evaluated. By-product formation during the plasma chemical destruction was assessed by monitoring the concentration of gaseous nitrogen and carbon oxides, namely, NOx (NO, NO2) and COx (CO, CO2). Carbon mass balances were used to assess the possibility of complete contaminant destruction leading to mineralization. Systematic trends are highlighted and show that the destruction efficiency increases with specific energy, but tends to level off at values of specific energy that are compound dependent. An inverse relationship between the maximum destruction efficiency of a particular compound and its ionization energy was found for chemically similar compounds.

Original languageEnglish (US)
Pages (from-to)305-315
Number of pages11
JournalInternational Journal of Mass Spectrometry
Volume233
Issue number1-3
DOIs
StatePublished - Apr 15 2004

Fingerprint

Capillarity
Hydrocarbons
Discharge (fluid mechanics)
plasma jets
destruction
contaminants
hydrocarbons
Impurities
Plasmas
Carbon
reactors
energy
aliphatic hydrocarbons
Aromatic Hydrocarbons
nitrogen oxides
Ionization potential
carbon
Aromatic hydrocarbons
mass balance
Carbon Monoxide

Keywords

  • Aromatic and aliphatic hydrocarbons
  • Capillary plasma
  • Non-thermal plasma
  • Volatile organic compounds (VOC)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy

Cite this

Destruction of hydrocarbons in non-thermal, ambient-pressure, capillary discharge plasmas. / Koutsospyros, A.; Yin, S. M.; Christodoulatos, C.; Becker, K.

In: International Journal of Mass Spectrometry, Vol. 233, No. 1-3, 15.04.2004, p. 305-315.

Research output: Contribution to journalArticle

Koutsospyros, A. ; Yin, S. M. ; Christodoulatos, C. ; Becker, K. / Destruction of hydrocarbons in non-thermal, ambient-pressure, capillary discharge plasmas. In: International Journal of Mass Spectrometry. 2004 ; Vol. 233, No. 1-3. pp. 305-315.
@article{0305812fd1d14705961ae6bfd1a16391,
title = "Destruction of hydrocarbons in non-thermal, ambient-pressure, capillary discharge plasmas",
abstract = "This present work investigates the effectiveness of non-thermal diffuse plasmas for the destruction of environmental contaminants that are present in trace concentrations in respirable atmospheres. Parametric studies were carried out using three atmospheric-pressure capillary plasma reactors of varying geometry. Volatile aliphatic and aromatic hydrocarbons, at concentrations of up to several hundred parts per million (ppm), were used as prototypical compounds for these studies. Parameters studied included the reactor volume, the species residence time, the specific energy input, and the influent contaminant concentration. Moreover, the dependence of the overall destruction efficiency on specific energy, contaminant type, and presence of other contaminants in well-defined contaminant mixtures was evaluated. By-product formation during the plasma chemical destruction was assessed by monitoring the concentration of gaseous nitrogen and carbon oxides, namely, NOx (NO, NO2) and COx (CO, CO2). Carbon mass balances were used to assess the possibility of complete contaminant destruction leading to mineralization. Systematic trends are highlighted and show that the destruction efficiency increases with specific energy, but tends to level off at values of specific energy that are compound dependent. An inverse relationship between the maximum destruction efficiency of a particular compound and its ionization energy was found for chemically similar compounds.",
keywords = "Aromatic and aliphatic hydrocarbons, Capillary plasma, Non-thermal plasma, Volatile organic compounds (VOC)",
author = "A. Koutsospyros and Yin, {S. M.} and C. Christodoulatos and K. Becker",
year = "2004",
month = "4",
day = "15",
doi = "10.1016/j.ijms.2003.12.033",
language = "English (US)",
volume = "233",
pages = "305--315",
journal = "International Journal of Mass Spectrometry",
issn = "1387-3806",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Destruction of hydrocarbons in non-thermal, ambient-pressure, capillary discharge plasmas

AU - Koutsospyros, A.

AU - Yin, S. M.

AU - Christodoulatos, C.

AU - Becker, K.

PY - 2004/4/15

Y1 - 2004/4/15

N2 - This present work investigates the effectiveness of non-thermal diffuse plasmas for the destruction of environmental contaminants that are present in trace concentrations in respirable atmospheres. Parametric studies were carried out using three atmospheric-pressure capillary plasma reactors of varying geometry. Volatile aliphatic and aromatic hydrocarbons, at concentrations of up to several hundred parts per million (ppm), were used as prototypical compounds for these studies. Parameters studied included the reactor volume, the species residence time, the specific energy input, and the influent contaminant concentration. Moreover, the dependence of the overall destruction efficiency on specific energy, contaminant type, and presence of other contaminants in well-defined contaminant mixtures was evaluated. By-product formation during the plasma chemical destruction was assessed by monitoring the concentration of gaseous nitrogen and carbon oxides, namely, NOx (NO, NO2) and COx (CO, CO2). Carbon mass balances were used to assess the possibility of complete contaminant destruction leading to mineralization. Systematic trends are highlighted and show that the destruction efficiency increases with specific energy, but tends to level off at values of specific energy that are compound dependent. An inverse relationship between the maximum destruction efficiency of a particular compound and its ionization energy was found for chemically similar compounds.

AB - This present work investigates the effectiveness of non-thermal diffuse plasmas for the destruction of environmental contaminants that are present in trace concentrations in respirable atmospheres. Parametric studies were carried out using three atmospheric-pressure capillary plasma reactors of varying geometry. Volatile aliphatic and aromatic hydrocarbons, at concentrations of up to several hundred parts per million (ppm), were used as prototypical compounds for these studies. Parameters studied included the reactor volume, the species residence time, the specific energy input, and the influent contaminant concentration. Moreover, the dependence of the overall destruction efficiency on specific energy, contaminant type, and presence of other contaminants in well-defined contaminant mixtures was evaluated. By-product formation during the plasma chemical destruction was assessed by monitoring the concentration of gaseous nitrogen and carbon oxides, namely, NOx (NO, NO2) and COx (CO, CO2). Carbon mass balances were used to assess the possibility of complete contaminant destruction leading to mineralization. Systematic trends are highlighted and show that the destruction efficiency increases with specific energy, but tends to level off at values of specific energy that are compound dependent. An inverse relationship between the maximum destruction efficiency of a particular compound and its ionization energy was found for chemically similar compounds.

KW - Aromatic and aliphatic hydrocarbons

KW - Capillary plasma

KW - Non-thermal plasma

KW - Volatile organic compounds (VOC)

UR - http://www.scopus.com/inward/record.url?scp=2142758607&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2142758607&partnerID=8YFLogxK

U2 - 10.1016/j.ijms.2003.12.033

DO - 10.1016/j.ijms.2003.12.033

M3 - Article

VL - 233

SP - 305

EP - 315

JO - International Journal of Mass Spectrometry

JF - International Journal of Mass Spectrometry

SN - 1387-3806

IS - 1-3

ER -