flow in the bottom and represents the resistance to flow in this part of the reactor). The main operating variables are primarily the gas input rate and, to a lesser extent, the top clearance (Ct, the distance between the upper part of the draft tube and the surface of the nonaerated liquid). These two independent variables set the conditions that determine the liquid velocity in the ALR via the mutual influences of pressure drops and holdups, as shown in Figure 5 (37). Viscosity is not shown in Figure 5 as an independent variable because in the case of gas-liquid mixtures, it is a function of the gas holdup (and of liquid velocity in the case of non-Newtonian liquids), and because in a real process, it will change with time due the changes in the composition of the liquid.

Brew Your Own Beer

Brew Your Own Beer

Discover How To Become Your Own Brew Master, With Brew Your Own Beer. It takes more than a recipe to make a great beer. Just using the right ingredients doesn't mean your beer will taste like it was meant to. Most of the time it’s the way a beer is made and served that makes it either an exceptional beer or one that gets dumped into the nearest flower pot.

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