Experimental Study of the Influence of the Operating Variables on Natural Gas Reburning Efficiency

The CH3+NO rate coefficient at high temperatures: Theoretical analysis and comparison with experiment

“…To do so it is important to note that they measured only k 1 , the rate coefficient for the molecular channel, HCN ϩ H O. 2 Taking our result for and their result for k 1 , we k T would conclude that at i.e., k /k Ϸ 0.3 T ϭ 1200 K, 1 T the radical channel is dominant at this temperature. However, this conclusion appears to be inconsistent with the experimental results of Hennig and Wagner [15] and Braun -Unkhoff et al [14], both of whom conclude that the molecular channel is the dominant one even at higher temperatures.…”

Advanced technologies for coal and biomass utilization

“…Finally, the un‐reacted intermediate products completely burn in burnout zone where the additional air is added. Previous studies show that the efficiency of NO reduction greatly depends on the stoichiometric ratio (SR) and temperature levels. However, apart from the SR and reaction temperature, reaction time also plays a key role in methane reburn process, and the required residence time is about 1.0–2.0 s in order to achieve a lower NO emission level in the real industrial‐scale facilities.…”

Kinetic modeling of non-hydrocarbon/nitric oxide interactions in a flow reactor above 1,400K

“…Reburning is a chemically complex process in which nitric oxide is abated by using fuel as a reducing agent. Over the years a significant amount of work has been devoted to improve the understanding of NOx reduction by the hydrocarbon radicals, both experimentally and theoretically [1][2][3][4][5][6][7]. The ability of non-hydrocarbon fuels such as hydrogen and carbon monoxide has been proven to be 20-30%, both experimentally and with detailed reaction mechanisms [8,9].…”