Answer / saptarshi

PFR and MFR are basically continuous type reactors while
the batch reactor as its name suggests, is non continuous
type of reactor. however a MFR can be both batch or
continuous.
in a PFR composition varies along the length of the reactor
whereas in a MFR composition of the reactant mixture is
uniform throughout the reactor and same as that in the exit
line. MFRs usually are equipped with an agitating device
(stirrer, agitator) for mixing the reactants but in case of
PFRs mixing takes place pependicular to the direction of
flow of reactants and they do not have any agitating device
as such.

Answer / rajesh kumar bhagat

PFR- plug flow reactor is one where latrel mixing is allowed
but longitudnal mixing that is along the length not allowed.
composition changes along the length.
MFR- mixed flow reactor, composition throughout the reactor
will be same and all calculation will be done on output
composition.
Batch reactor- reactant will placed in reactor and let them
react and after some time or after completion of reaction take
it out.

Answer / v

PLUG FLOW REACTOR and MIXED FLOW REACTOR are basically
continuous type reactors while
the batch reactor as its name suggests, is non continuous
type of reactor. however a MFR can be both batch or
continuous.
in a PFR composition varies along the length of the reactor
whereas in a MFR composition of the reactant mixture is
uniform throughout the reactor and same as that in the exit
line. MFRs usually are equipped with an agitating device
(stirrer, agitator) for mixing the reactants but in case of
PFRs mixing takes place pependicular to the direction of
flow of reactants and they do not have any agitating device
as such.

Answer / praveen

Also in addition to those, in a MFR the concentration of the
reactant drops to a low value at a time whereas for PFR the
concentration of the reactant decreases progressively (i.e
stepwise)and higher conversions can be obtained than MFR for
a given reaction.

Answer / sapna

pfr,mfr are bassically continuous reactor&batch reactor are
non-continuous reactor.

Answer / saeed virk

in pfr the composition will change within the passage of time ,almost when feed is directed to the reactor length.it means composition is not same at inlet and out lat of the reactor.reactor. Cstr is totally vice virsa of this.

Answer / vasista

but u will get same performance equations for batch and pfr why?
and batch reactors will have mean residence time and plug flow reactor has residence time why?

Answer / ravishankarraju

Pfr is continuos reactor wher the flow is plug flow wher there will concentration change along the length of the flow and in mfr there will be mixing all over the reactor which is similar to batch reactor but mfri in mfr the concentration drops suddenly

Answer / hemanth

pfr and cstr are continuos reactors and batch opreate sin
batch mode

PETROLEUM ENGINEERING - QUESTION 25.3 : Liquid octane has a density of 703 kilograms per cubic metre and molar mass of 114.23 grams per mole. Its specific heat capacity is 255.68 J / (mol K). (a) Find the energy in J needed to increase the temperature of 1 cubic metre of octane for 1 Kelvin. (b) At 20 degree Celsius, the solubility of liquid octane in water is 0.007 mg / L as stated in a handbook. For a mixture of 1 L of liquid octane and 1 L of water, prove by calculations that liquid octane is almost insoluble in water.

1 Answers  

What is a "saltation velocity"?

0 Answers  

Is there any facility to complete M.TECH CHEMICal eNGINEERING IN INDIA. Any college providing the same.

4 Answers  

Explain the reasons of removal of particles from effluent gas?

0 Answers  

1.How a chlorine leak is detected? 2.What would happen if excess chlorine is added to water in cooling tower?

3 Answers  

i have done B.TECH in che.tech.and doing MBA . why you doing mba why u have not join any job.

0 Answers   IBM,

Explain what is the method involved in analyzing powders for composition?

0 Answers  

based on percentage problems

0 Answers   Amara Raja,

What is the meaning of the critical speed of a turbine, and what are its effects on the shaft line

1 Answers  

What are the different types of equipments for the conveyance of solids?

0 Answers  

why do tangential entry require for a cyclone separator?

1 Answers  

viscosty of crude use for petroliun?

4 Answers   ONGC,