Understanding the gas transport in porous catalyst layers by using digital reconstruction techniques
2015
Understanding the gas transport is an important step to design more efficient catalytic systems. In the present review, we discuss the impact of internal transport limitations in porous catalytic layers on the reactor performance. In addition, we review novel methods combining 3D digital reconstruction techniques and mathematical modelling that reflect complexity of the catalyst morphology on the gas transport. The methods are demonstrated on a catalytic layer in a converter of automotive exhaust gases. However, similar approach and conclusions are applicable to any reactor with a supported porous catalyst. Several case studies are presented where the results of modelling can be used to optimize transport properties in a porous catalyst.
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