Calculate equilibrium conversion and cstr and pfr volumes

Assignment Help Chemical Engineering

Reference no: EM13965345

Problem 1. The elementary liquid phase reaction A + B-> C is carried out in a 500 dm³ reactor. The entering concentrations of streams A and B are both 2-molar and the specific reaction rate is 0.01 dm³/(mol*min).

a Calculate the time to reach 90% conversion if the reactor is a batch reactor filled to the brim.

Assuming a stoichiometric feed (10 mol A/min) to a continuous flow reactor; calculate the reactor volume and space-time to achieve 90% conversion if the reactor is

b. a CSTR

c. a PFR

d. Redo (a) through (c) assuming the reaction is first-order in B and zero-order in A with k = 0.01 /min.

e. Assume the reaction is reversible with K_e = 2 dm³/Mol. Calculate the equilibrium conversion and the CSTR and PFR volumes necessary to achieve 98% of the equilibrium conversion.

Problem 2. You are in charge of the production of specialty chemicals for your organization and an order comes in for 3 lb of brominated p-chlorophenyl isopropyl ether. You decide to use the technique reported by Bradfield et al. [J. Chem. Soc., 1389 (1949)], who carried out the reaction in 75% acetic acid at 68^oF.

You have a batch reactor that holds 5 gal (0.670 ft³ ) of a reacting mixture that can be used. Starting out with a mixture that contains 0,002 lb mol (0.34 Ib) of p-chlorophenyl isopropyl ether and 0.0018 lb mol (0.288 Ib) of bromine in the 5 gal, you decide to run 10 batches of the mixture to 65% conversion of the p-chlorophenyl isopropyl ether. This procedure will give the desired 3 lb.

How long will each batch take?

Reaction : 2A + B -> 2C

where A is p-chlorophenyl isopropyl ether, B is bromine, and C is monobrominated product

Rate Law: rA = -(k-,C_AC_B + k₂C_AC_B²

Specific reaction rates at 68 F:

K₁= 1.98 ft³ , /lb mol middot min

K₂ = 9.2 x10³ (ft³ /lb mol)²middot min^-1

Reference no: EM13965345

Questions Cloud

Chris shannon is employed by acme company : Allocate Ms. Shannon's earnings for the week between direct labor and manufacturing overhead.

Direct labor and manufacturing overhead : Allocate Mr. DeJay's earnings for the week between direct labor and manufacturing overhead.

Determine the shielding effectiveness of the enclosure : A shielding enclosure with no apertures has a shielding effectiveness of 100 dB at 100 MHz. Determine the shielding effectiveness of the enclosure, at 100 MHz and at 200 MHz, if 20 closely spaced, equal size apertures were cut into one of its pane..

What does the acronym vsat stand for : A private data network is constructed by a company using a large gateway earth station close to the company's head office, a transponder on a GEO satellite and 200 VSAT stations located at the company's retail outlets across the United States. The..

Calculate equilibrium conversion and cstr and pfr volumes : Calculate the equilibrium conversion and the CSTR and PFR volumes necessary to achieve 98% of the equilibrium conversion and calculate the time to reach 90% conversion if the reactor is a batch reactor filled to the brim.

Why is cost accumulation simpler in a process costing system : Why is cost accumulation simpler in a process costing system than it is in a job-order costing system?

Calculate the angle subtended by the first minimum : Consider the case when there are two such sources, separated laterally by 20.0 cm, behind the slit. What must the maximum distance between the plan of the sources and the slit be if the diffraction patterns are to be resolved?

Prepare journal entries to record items : Finished bricks were sold to customers. According to the company's process costing system, the cost of the finished bricks sold was $106,000.

Why is there no change in the pattern in vertical direction : The width of the slit is slowly decreased. Once diffraction effects become evident, what happens as the slit gets narrower? Why is there no change in the pattern in the vertical direction? What do you suppose the pattern for a round hole would look..

User Account

All Pages