Environmental Engineering Reference
In-Depth Information
Figure 6.20: Effect of O
2
content in regeneration gas on surface area of catalyst [From ref.
472
.
Reprinted with permission].
The extensive database on surface properties of the fresh, spent, and regenerated catalysts
(
Table 6.6
) established by Ammus et al.
[402]
is presented to indicate changes in surface
properties during regeneration involving two CoMo/Al
2
O
3
catalysts varying in particle size. In
this case, particles size (
L
p
) was defined as the ratio of particle volume to the particle external
Figure 6.21: Effect of flow rate of regeneration gas on gas on surface area of catalyst [From ref.
401
. Reprinted with permission].
