Infrared Absorption Spectroscopy and Chemical Kinetics of Free Radicals

Technical Report · Mon Nov 01 00:00:00 EST 2004

DOI:https://doi.org/10.2172/838138· OSTI ID:838138

Curl, Robert F ^[1]; Glass, Graham

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1. Wm Marsh Rice University

This research was directed at the detection, monitoring, and study of the chemical kinetic behavior by infrared absorption spectroscopy of small free radical species thought to be important intermediates in combustion. Work on the reaction of OH with acetaldehyde has been completed and published and work on the reaction of O({sup 1}D) with CH{sub 4} has been completed and submitted for publication. In the course of our investigation of branching ratios of the reactions of O({sup 1}D) with acetaldehyde and methane, we discovered that hot atom chemistry effects are not negligible at the gas pressures (13 Torr) initially used. Branching ratios of the reaction of O({sup 1}D) with CH{sub 4} have been measured at a tenfold higher He flow and fivefold higher pressure.

• Research Organization: Wm Marsh Rice University
• Sponsoring Organization: USDOE
• DOE Contract Number: FG03-94ER14464
• OSTI ID: 838138
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
ABSORPTION SPECTROSCOPY
ACETALDEHYDE
BRANCHING RATIO
COMBUSTION
DETECTION
HOT ATOM CHEMISTRY
KINETICS
METHANE
MONITORING
RADICALS