Tube in Furnace Reactors

Mass velocities are still much smaller than in production reactors, and Reynolds numbers based on particle diameter are frequently much less than 100. Consequently flow is not similar to that in commercial reactors, and heat and mass transfer are much poorer. 

These reactors were, and unfortunately still are, used in a few laboratories for process studies on heterogeneous catalysis, frequently with the 

Reprinted with permission, 1983 American Chemical Society. 

All the mentioned precautions do not make the operating mode of these tubular reactors close to that of large-scale reactors. The outside observer 

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Figure 2.2.3 The furnace from a tube-in-furnace reactor. ...

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