The new parameter introduced here will yield more meaningful results when a fixed-bed reactor is scaled up for process development or scaled down for plant support.
(ProQuest-CSA LLC: ... denotes formulae omitted.)
Downscaling a chemical process is more difficult than upscaling. Upscaling refers to designing a pilot plant for fairly wide operating ranges, whereas in downscaling, a pilot plant is designed to duplicate or mimic a feature of an existing commercial plant. Process development involves upscaling; plant support involves downscaling.
Downscaling requires that the mass transfer rates of the pilot plant he equivalent to those of the commercial plant. …
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