Structure Study of a Cf2br2-Inhibited Methane Flame: Effect of Cf2br2 on Composition, Net Reaction Rates, and Rate Coefficients

Details

• Personal Author:
  Biordi JC ; Lazzara, Charles P. ; Papp JF
• Description:
  The microstructures and a cf2br2-inhibited methane flame and its uninhibited analog have been determined using molecular beam-mass spectrometry. The slightly lean flames were stabilized on a cooled porous plug burner at reduced pressure. Composition profiles of stable, intermediate, and radical species and temperature profiles revealed the following inhibition effects; a shift of the primary reaction zone to higher temperatures, a higher maximum flame temperature, an increase in the ch3 concentration, and a reduction in the h2co, h, o, and oh concentrations. Kinetic analyses of the data yielded rate coefficients at flame temperatures for the reactions h + ch4 -> ch3 + h2, h + o2 -> oh + o, CO + oh -> co2 + h, and ch3 + o -> h2co + h. Cf2br2 is judged to decay by thermal decomposition and abstraction reactions. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no pdf
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-32
• NIOSHTIC Number:
  nn:10002129
• Citation:
  NTIS: PB82/128844; :1-32
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f5f71cc212e0cb0aa07695833b2a3e1ec2704593bd0bc656a88a43576c57553c0e94eeb83bac585721eb792d368f100098e603e1ababbb8c22fc7f82f25787df
• Download URL:
  https://stacks.cdc.gov/view/cdc/237263/cdc_237263_DS1.pdf
• File Type:
  [PDF - 2.50 MB ]