组分变化对甲烷氧化特性影响

在射流搅拌反应器实验平台上针对温度范围850～1300K、常压条件下的甲烷氧化反应过程进行了实验研究,采用气相色谱仪测量了变组分条件下(当量比范围0.2～2、氧气体积分数2％～8％、二氧化碳体积分数0～20％、水蒸气体积分数0～20％)主要反应物(CH4、O2)、主要中间组分(C2H6、C2H4、C2H2、H2)和主要...

Effect of composition variance on methane oxidation characteristics

The methane oxidation within the temperature range of 850-1 300 K and atmospheric pressure was studied in a jet stirred reactor. The major reactants (CH4, O2), intermediate components (C2H6, C2H4, C2H2, H) and pollutants (CO, CO2) were measured by gas chromatography under the condition of equivalence ratio range of 02-2, oxygen content of 2%-8%, carbon dioxide content of 0-20%, water vapor content of 0-20%. The effects of various compositions on species distributions during methane oxidation were analyzed in detail. It was found that the concentration of intermediate components increased with the increase of equivalence ratio and oxygen content; the increase of carbon dioxide content had a weak inhibitory effect on the formation of intermediate products, but resulted in obvious rise of the concentration of pollutants; the increase of water vapor content led to significant increase of hydrogen production, and promoted the formation of carbon monoxide, but had little effect on the formation of carbon dioxide.