Combustion of methane and propane in an incipiently fluidized bed
Combustion of methane and propane in an incipiently fluidized bed
复制标题
甲烷和丙烷在初期流化床中的燃烧
DOI：
10.1016/0010-2180(91)90147-4
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
J. Davidson
中科院分区：
文献类型：
--
作者：
R. Hesketh;J. Davidson
进行了温度和气体浓度实验，以确定在鼓泡流化床颗粒相中挥发物开始燃烧的温度。这种床的颗粒相是通过在初始流化时操作流化床来近似的。气体浓度测量由预混丙烷-空气和预混甲烷-空气混合物的产物进行。在颗粒相中，丙烷和甲烷的燃烧产物的临界温度分别为835℃和915℃；在每种燃料-空气混合物的临界温度以下，燃烧可以忽略不计。通过非稳态温度和点火延迟时间的测量，确定了丙烷的临界燃烧温度。这些实验表明，颗粒相可以抑制烃类的氧化速率。
Temperature and gas concentration experiments have been conducted to determine the temperature at which volatiles begin to combust within the particulate phase of a bubbling fluidized bed. The particulate phase of such a bed was approximated by operating a fluidized bed at incipient fluidization. Gas concentration measurements were made from products of both premixed propane-air and premixed methane-air mixtures. The critical temperatures above which combustion products were observed in the particulate phase were 835°C and 915°C for propane and methane, respectively; below the critical temperature for each fuel-air mixture, combustion was negligible. The propane critical combustion temperature was confirmed from the results of unsteady-state temperature and ignition delay time measurements. These experiments demonstrate that the particulate phase can inhibit the oxidation rate of hydrocarbons.