Experimental investigation of fluidized-bed reactor performance for oxidative coupling of methane

Data Driven Determination of Reaction Conditions in Oxidative Coupling of Methane via Machine Learning

“…C 2 yield varies with every parameter of the reaction conditions. The C 2 yields are consistent with previously reported yields obtained using Mn‐Na 2 WO 4 catalysts under similar reaction conditions including the artificial neural network results, where the C 2 yields of 22 % reported in this work are consistent with C 2 yields of 23 % previously reported using artificial neural network . Given the nature of the random forest regression model, the impact of the descriptors are also further evaluated.…”

Advanced reactor concepts for oxidative coupling of methane

“…The bubbling fluidized bed, depicted in Figure 22, is a gas-solid contactor in which the solid catalyst, sometimes mixed with inert particles, is fluidized by the gas entering from the bottom (20,21,34,(92)(93)(94)(95)(96)(97)(98)(99)(100). In the OCM case, the inlet gas is a mixture of methane and oxygen.…”

Characterization of Mn–Na2WO4/SiO2 and Mn–Na2WO4/MgO catalysts for the oxidative coupling of methane

“…Mn, Na and W, on the catalytic activity and selectivity [5][6][7][8][9][10], the effects of reaction pressure [11] and temperature plus CH 4 :O 2 ratio [12], and studies have been conducted to investigate support materials other than SiO 2 [13][14][15][16]. In addition, fluidized bed processing for large scale production has been tested using the Mn-Na 2 WO 4 /SiO 2 catalyst [17][18]. A welldocumented phenomenon associated with the Mn-Na 2 WO 4 /SiO 2 catalysts is the phase transformation of the silica support from amorphous silica to the highly crystalline -cristobalite phase after calcinations at 800 °C, a phase transition that does not occur until higher temperatures when impregnating a silica support with manganese or sodium alone [1,5,6,10].…”