Aluminum as a catalyst (Chemical Engineering)

Graavfsna
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Problem 3. Aluminum Catalyst Aluminum oxide commonly occurs in several different crystal structures and distinctive properties. a) a - Al2O3 is the most common form of alumina with a bulk density around 4.0 g/cm3. Assume it forms solid spherical particles with diameter 1um and the sphere-sphere contact leads to negligible loss of exposed surface area. Find the specific surface area a. b) v-Al2O3 has a cubic crystal structure with a bulk density 3.5 g/cm3. If it forms platelets around 3nm thick and the edges have negligible area. Once again, assume that no surface area is lost due to platelet contact, find a. c) Compare the two aluminas. Which one would you use as a catalyst?
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