THE EFFECTS OF CH3CL ADDITION ON AN ATMOSPHERIC-PRESSURE FUEL-LEAN CH4 AIR PREMIXED LAMINAR FLAT FLAME

被引：11
|
作者：
WANG, L
JALVY, P
BARAT, RB
机构：
[1] Dept. of Chemical Engineering, Chemistry, and Environmental Science, New Jersey Institute of Technology, Newark., NJ
来源：
COMBUSTION SCIENCE AND TECHNOLOGY | 1994年 / 97卷 / 1-3期
关键词：
INHIBITION; FLAT FLAME; CHLORINATED HYDROCARBON; MECHANISM;
D O I：
10.1080/00102209408935366
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The inhibitory effects of CH3Cl on an atmospheric pressure fuel-lean CH4/air premixed laminar flat flame are investigated through stable species (water-cooled quartz microprobe and gas chromatography) concentration measurements and detailed chemical modeling. Varying degrees of CH3Cl in the feed (at a fixed phi) result in consistently higher observed CO/CO2 molar concentration ratios at all heights-above-burner. Modeling of these flames with detailed elementary reaction mechanisms yields predicted stable species concentration profiles which are consistent with the experimental observations. Rate-of-production analyses derived from the modeling indicates that the Cl atom is a dominant radical in the CH3Cl/CH4 flames. For fuel-lean conditions, the inhibitory effect results primarily from the slowdown of CO burnout by OH due to depletion of OH by HCl, which is generated primarily from fast H abstractions by Cl.
引用
收藏
页码：13 / 36
页数：24
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