کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
687452 | 889322 | 2010 | 6 صفحه PDF | دانلود رایگان |
Non-catalytic partial oxidation of natural gas/O2/H2O mixture at elevated pressures was simulated kinetically using Chemkin package incorporating detailed reaction mechanisms of methane oxidation. The dependence of reaction time was investigated as a function of inlet temperature, system pressure, and O2/CH4 ratio. The conversion to products was predicted to complete within a residence time of less than 0.1 ms at pressures greater than 30 atm and temperatures higher than 1450 K. A minimum O2/CH4 ratio of 0.64 was found necessary for a complete methane conversion at the conditions typical for the industrial reformer. The effect of O2/H2O in the feed gas was examined computationally, and the results suggested that adding H2O in the feed gas could be a viable tool for adjusting the H2/CO ratio in the products and for controlling the flame temperature. Formations of higher order hydrocarbons and soot, which may play important roles in the actual fuel-rich conversion environment, are not considered in the present study.
Journal: Chemical Engineering and Processing: Process Intensification - Volume 49, Issue 1, January 2010, Pages 59–64