Shock-Tube Ignition Study of Methane in Air and Recirculating Gases Mixture

Modeling of aromatics formation in fuel-rich methane oxy-combustion with an automatically generated pressure-dependent mechanism

“…There were multiple pathways sharing the same potential surface, and some species and elementary steps are in common. All the surfaces involved in the ten pathways are merged to be C x H y ([x,y] = [8,7], [9,7], [9,8], [9,9], [9,11], [10,7], [10,9], [10,10], [10,11]) PESs and the pressure-dependent rate coefficients are estimated from high-pressure limit rates and the thermochemistry properties of species on each PES using the method described above. Besides these reactions, critical H-abstraction reactions by H, CH 3 , and OH, which connect the different C x H y PESs, were incorporated from the rates calculated in literature or estimated by RMG.…”

“…2 In POX, natural gas, mainly composed of methane (CH 4 ), flows with a sub-stoichiometric amount of oxygen (O 2 ) into a reactor. To better control and optimize POX, numerous experimental studies have been performed in flow reactors, [3][4][5][6][7] shock tubes, [8][9][10][11] premixed flames [12][13][14][15][16][17][18][19][20] and inverse diffusion flames. [21][22][23][24] Among these studies, in 2016 Kohler et al 3 performed experiments in a hightemperature flow reactor with quantitative speciation from mass spectrometry.…”

Speciation data for fuel-rich methane oxy-combustion and reforming under prototypical partial oxidation conditions

“…Complementary experimental studies for partial oxidation / rich combustion investigate primarily processes with methane as fuel by using shock tubes [14][15][16][17], flow reactors [5,7,12,18,19], premixed flames [8][9][10][20][21][22][23][24][25], partially premixed flames [26] and inverse diffusion flames [27][28][29][30]. A summary of the experimental investigations in simple chemical reactors for partial oxidation of methane can be found in [31].…”

Experimental measurements and kinetic modeling of CH4/O2 and CH4/C2H6/O2 conversion at high pressure

“…Both the high-temperature conversion important in combustion processes and the low-temperature chemistry relevant for direct conversion of methane to higher value products have received considerable attention. Oxidation of methane has been studied in static reactors [1][2][3], laboratory flow reactors [4][5][6][7][8][9][10][11][12], shock tubes [13][14][15][16][17][18][19][20][21][22][23][24][25], and laminar premixed flames [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. However, experimental data obtained at high pressures are scarce.…”