Granules hardness

Figure 3 Ovaloid tablets ( 17mm length), wet granulation hardness (kP) profile.

For gas-phase applications, carbon adsorbents are regularly applied in the shape of hard granules, hard pellets, fiber, cloths, and monoliths since these prevent an extreme pressure drop [77,78],... 

Dull-white gel granules hardness approximately that of glass high specific surface (500 m /g.). Gels prepared according to the above directions are especially useful for chromatographic purposes [11]. 

Outputs y are the variables of interest for the designer, operator, or manager. They might be quality variables that are related to granule properties such as size distribution, granule moisture, or granule hardness. Other outputs of interest could be related to product temperature, flowrates, and composition. The outputs are necessarily measurable in some way, either directly on-line such as PSD or moisture, or via laboratory analysis such as composition. 

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