Exercise 4.4: Catalyst deactivation in a batch reactor Consider the irreversible, liquid-phase isomerization reaction carried out...
The second order gas phase irreversible reaction: 2.4-B is carried out in an isothermal batch reactor containing 40 kg of catalyst and with an initial volume of 60-liter. The reactor is initially filled with equal molar quantities of A and inert I at 300 K and 2.5 atm. Calculate the time needed for the concentration of product (B) to be 0.02 mole/liter if: a) the reaction takes in a constant pressure batch reactor (3 points) b) the reaction takes place...
QUESTION 3: 10 marks A liquid phase isomerization reaction A--> was carried out in a Packed- 10 points bed Reactor with a solid catalyst. The reaction is very fast and the overall rate-controlling step is the external mass transfer between catalyst surface and the bulk fluid. Recently, market demand for the product has fallen by 50%, due to Covid-19 pandemic. Therefore, the management has decided to cut the production by half so that the raw material consumption can be reduced...
An acid-catalyzed irreversible liquid-phase reaction A B is carried out adiabatically in a CSTR. The reaction is second order in A. The feed is equimolar A and solvent (S, which contains catalyst), and enters the reactor at a total volumetric flow rate of 10 dm3/min at a concentration of A of 4 mol/L. The feed enters at 300 K. The product and reactant heat capacities are 15 cal/(mol°C), the solvent is 18 cal/(mol°C). The reaction rate constant at 300 K...
2. The irreversible gas phase reaction A B is carried out isothermally in a fluidized catalytic CSTR. The reaction rate is first orderw.r.t.the partial pressure of A (-rA KA PA). With arn entering pressure 20 atm, an negligible pressure drop in CSTR, and 50 kg of catalyst, a conversion of 50% was realized for pure A feed. |-Fluidized hal oooo -catalyst o ojo | |,'-/ pellets Now, a PBR is connected to the downstream of this CSTR with a same...
An aqueous phase reversible reaction ? ⇌ ? + ? is carried out in a batch reactor. The forward reaction is first order wrt A and the backward reaction is first order wrt each component. Initial concentration of A is 1 mol/litre and no R and S are present initially. Derive an expression for ?? ⁄??. What is the maximum allowable conversion in the reactor? If this reaction happens in gas phase (constant pressure), derive an expression for ?? ⁄??....
3. The endothemic irreversible 2nd order reaction A +B C is carried out in a pressurised adiabatic batch reactor. The initial temperature is 120°C and the initial concentrations of both A and B are 2.0 kmol m2 Kinetic studies showed that the reaction rate constant is given by: 6000 k 2 x 105 exp(- m3kmol 1s1 T (8) (a) Derive the mass and energy balances for the reactor. Calculate the conversion achieved and the reactor temperature (b) (12) after 30...
The elementary irreversible organic liquid-phase reaction. a+b==>c is carried out adiabatically in a flow reactor. An equal molar feed in A and 8 enters at 27'C, and the volumetric flow rate is 2 dm3/sa nd CAo= 0.I k molfm3 graphically.on exal
The irreversible elementary gas-phase reaction A + B ) C + D is carried out isothermally at 305K in a packed bed reactor with 100 kg catalyst of particle size 8 mm. The entering pressure is 20 atm and the exit pressure is 2 atm. The feed rate is equal molar in A and B and the flow is in the turbulent flow regime, with FA0-10 mol/min and CA 0.4 mol/dm3. Currently 80% conversion is achieved. a) What would be...
advanced CRE subject step by step answer QUESTION 3: 10 marks A liquid phase isomerization reaction A--> was carried out in a Packed- 10 bed Reactor with a solid catalyst. The reaction is very fast and the overall rate-controlling step is the external mass transfer between catalyst surface and the bulk fluid. Recently, market demand for the product has fallen by 50%, due to Covid-19 pandemic. Therefore, the management has decided to cut the production by half so that the...
The production of methyl bromide is an irreversible liquid-phase reaction that follows an elementary rate law. The reaction CNBr (A) + CH3NH2 (B)àCH3Br (C) + NCNH2 (D) is carried out isothermally in a semi-batch reactor. A solution of methylamine (B) in extra dry ethanol at a concentration of 0.025 mol/L is to be fed at a rate of 0.05 L/s to an solution of bromine cyanide (A) in extra dry ethanol contained in a glass-lined reactor. The initial volume of...