Design and modeling of large-scale cross-current multichannel Fischer–Tropsch reactor using channel decomposition and cell-coupling method

Toward the Development and Deployment of Large-Scale Carbon Dioxide Capture and Conversion Processes

“…For example, coarse-grid and multidimensional CFD simulations of cylindrical fluidized bed reactors for solids-based CO 2 capture have been studied to reveal flow fields under various operating conditions and cylindrical sizes. 249 Several research contributions studying CFD simulations of CO 2 conversion in solid oxide electrolysis cells 250 and different types of F-T synthesis and methanol synthesis reactors, such as bubble column slurry reactors, 251 multichannel reactors and packed bed reactors, 252 have been reported. Efficient CFD simulations of exothermic reactors can identify the optimal conditions that result in maximum yield of the major product while avoiding thermal deactivation of the catalyst.…”

Computational Fluid Dynamics Based Optimal Design of Guiding Channel Geometry in U-Type Coolant Layer Manifold of Large-Scale Microchannel Fischer–Tropsch Reactor

“…The reactor can achieve the isothermal condition by effective heat removal. In the microchannel FT reactor, the cooling and process layers are stacked in an alternating fashion, which can make it possible to remove the reaction heat effectively. − Many researchers analyzed the microchannel reactor performances focusing on the heat and mass transfer among the neighboring channels with the assumption of an ideally uniform distribution of the fluid. − In reality, however, this assumption does not necessarily hold: If maldistribution occurs, it is difficult to evenly remove the heat from the process layers. The flow maldistribution certainly delivers fatal results such as a runaway reaction or poor productivity in an exothermic reaction .…”

CFD Simulation of Microchannel Reactor Block for Fischer–Tropsch Synthesis: Effect of Coolant Type and Wall Boiling Condition on Reactor Temperature

“…They showed that a tube with an inner diameter less than 2.75 mm has high heat removal capacity for an extended range of syngas flow rates. Park et al 19 proposed a cell decomposition model to simulate a large-scale microchannel reactor to avoid intensive CFD computation. However, in light of numerous works available in the literature on FT synthesis in microchannels, the effects of coolant type and wall boiling condition in coolant channels on reactor temperature have not been evaluated quantitatively.…”