Question 3 (1 point)
A packed bed, isothermal reactor has 40% conversion for an irreversible, zero-order, gas-phase reaction.
The pressure drops from 10 bar at the inlet to 2.5 bar at the outlet. To increase conversion, the reactor length was increased by 50%, but the inlet and outlet pressures remained the same.
The production rate of product (mol/h) increased by ______________.
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Question 3 (1 point) A packed bed, isothermal reactor has 40% conversion for an irreversible, zero-order,...
Question 5 (8 Marks): The first order irreversible gas phase reaction a- A B is to be carried out in a packed bed reactor with a 1,000 kg of reforming catalyst are packed. The entering pressure is 20 atm and the pressure at the exit of the reactor is 1.0 atm. Calculate the pressure drop parameter. b- Sketch one reactor that is normally used to maximize the selectivity Briefly describe the two terms in the Arrhenius equation C- Question 5...
Hi everybody,can you help me for problem 4 in the attach . Thank for help! The elementary reversible reaction A + B 2C occurs in the liquid phase in isothermal CSTR. A stream containing equimolar amounts of A and B in a solvent enters. the reactor, and the conversion of A is measured to be 60%. The equilibrium conversion o A under the same inlet conditions is known to be 80%. The volumetric flowrate into the process is to be...
7. (15 pts.) A gas-phase reaction (A+B-C+D) is carried out in a packed bed reactor. When the particle size was decreased by 15 %, the conversion remained unchanged. When the particle size was decreased by 20%, the conversion decreased. When the original particle size was increased by 15 %, the conversion also decreased. In all cases, the temperature, the total catalyst weight, and all other conditions remained unchanged. Explain the observation. 7. (15 pts.) A gas-phase reaction (A+B-C+D) is carried...
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...
The gas-phase reaction, A + 0.5 B -> 3P occurs in a packed bed reactor. The rate law is –rA = kCA^2CB where k = 40 L^3/(g-min-mol^2). The superficial gas velocity (‘G’) is 1.8 kg/m^2-s with a density of 1.26 kg/m^3 and a viscosity of 2.2x10-5 kg/m-s. The porosity, catalyst density, and particle diameter are, respectively, 0.45, 2.3 g/cm^3, and 4 mm. The cross sectional area of the reactor is 60 cm^2. The inlet pressure and temperature are, respectively, 200...
Question 1: Design of isothermal reactors 30 Marks The irreversible, gas-phase reaction A+B D is to be carried out in an isotherma °C) plug-flow reactor (PFR) at 5.0 atm. The mole fractions of the feed streams are A 0 B 0.50, and inerts 0.30. The activation energy for the above reaction is 80 000 cal/mol. the pressure drop due to fluid friction in the reactor is so small that it can be ignored, perform the following tasks: 2T a s...
6 (20 pts). The irreversible elementary reaction of A+B take place in the packed bed rector PRO as shown below. Unfortunately, the catalyst particle size is so small as to induce the pressurəsro across the catalyst bed (P. = 20 atm and Pout 9 atm). You want to reduce the pressure drop and thereby increase the overall conversion. One way to eliminate the pressure drop in the catalytic reactor is to use a fluidized CSTR-type reactor in which a catalyst...
The reversible gas-phase dehydrogenation of ethylbenzene is achieved in an isothermal CSTR with no pressure drop. The feed enters at a volumetric flow rate of v0 = 2000 L/hour. On a molar basis the feed consists of half ethyl benzene (A) and half inerts (I) and is well mixed before it enters the reactor. The total pressure in the reactor is 6 bar (PA0 = 3 bar, PI0 = 3 bar). The molar flow rate of A is FA0 =...
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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...