September 28, 2006
Time: 50 min
Equation sheet provided.
1. (15 points) Suppose that the extended Debye-Huckellaw for a 1-1 electrolyte of
molality m is written in the form:
where k is a constant.
American University of Sharjah
CHE 321-Chemical Reaction Engineering
Quiz No. 2
Time allowed: 15 minutes
The gas phase reaction
is to be carried out isothermally in a PFR.
The entering molar flow rate of A is 0.4 mol/s.
The reaction ra
Deactivation by Coking
This mechanism is common in hydrocarbon Rxns:
Carbonaceous (coke) material deposit on catalyst
CC = Atn
CC = concentration of carbon on catalyst surface
A & n = fouling parameters (can be functions of
10.7 Catalyst Deactivation
Types of Catalyst Deactivation
Moving Bed Reactors
Straight Through Transport constant
Ct changes.The catalyst activity is notReactors
Determination of reaction rate law parameter