Jove
Visualize
Contact Us

Related Experiment Videos

Gas-phase mechanism for dioxin formation.

V I Babushok1, W Tsang

  • 1National Institute of Standards and Technology, 100 Bureau Drive, Stop 8380, Gaithersburg, MD 20899-8380, USA. vbabushok@nist.gov

Chemosphere
|April 30, 2003
PubMed
Summary

This study explores gas-phase dioxin formation from phenoxy radicals in combustion. It suggests a new pathway involving chlorine atoms and chlorinated phenoxy radicals, consistent with experimental data.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Kinetic Mechanism of 2,3,3,3-Tetrafluoropropene (HFO-1234yf) Combustion.

Journal of fluorine chemistry·2024
Same author

A Kinetic Mechanism for CF<sub>3</sub>I Inhibition of Methane-Air Flames.

Combustion science and technology : CST·2023
Same author

Community Priority setting for Fetal Alcohol Spectrum Disorder Research in Australia.

International journal of population data science·2021
Same author

A Simple Technique for the Generation of Dilute Mixtures of Pollutant Gases.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2020
Same author

Stable Carbon Isotope Ratio Measurements With a Gas Density Meter.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
Same author

Influence of Hydrocarbon Moiety of DMMP on Flame Propagation in Lean Mixtures.

Combustion and flame·2019
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Area of Science:

  • Combustion Chemistry
  • Environmental Chemistry
  • Chemical Engineering

Background:

  • Dioxin formation is a significant environmental concern.
  • Previous research focused on surface-catalyzed dioxin formation.
  • Poorly mixed combustion systems may offer unique reaction pathways.

Purpose of the Study:

  • To investigate the gas-phase formation of dioxins via phenoxy radical recombination.
  • To evaluate a novel dioxin formation mechanism in combustion systems.
  • To correlate theoretical findings with experimental measurements.

Main Methods:

  • Computational modeling of radical reactions in combustion.
  • Analysis of chlorine atom and chlorinated phenoxy radical kinetics.
  • Comparison of predicted dioxin concentrations with published data.

Main Results:

  • Chlorine atoms are identified as key radicals in fuel-lean combustion.
  • High concentrations of chlorinated phenoxy radicals can form under specific conditions.
  • Gas-phase dioxin formation is demonstrated to be consistent with experimental observations.

Conclusions:

  • A gas-phase pathway for dioxin formation exists, complementing surface-catalyzed mechanisms.
  • The proposed mechanism provides a plausible explanation for observed dioxin levels.
  • Understanding this pathway is crucial for controlling dioxin emissions.

Related Experiment Videos