9887

Series Reactions in a Batch Reactor

The liquid-phase reaction is carried out in an isothermal batch reactor. Both reactions are first-order. The activation energy of the first reaction, , is lower than the activation energy of the second reaction, . In this Demonstration you can vary the temperature of the reaction and the selectivity ), which is a function of time because the reactions have different activation energies. The concentrations of the reactants and products are also plotted as functions of time. Note that the time scale in the plots changes when the temperature increases from 465 K to 466 K.

SNAPSHOTS

  • [Snapshot]
  • [Snapshot]
  • [Snapshot]

DETAILS

Consider the reaction .
Both reactions are first-order. The reactor is isothermal, with the temperature of the reactor variable. 
As the temperature changes, the selectivity for the desired product B changes.
Mole balances:
,
,
.
= concentration of A
= concentration of B
= concentration of C
,
.
= rate constant for first reaction
= rate constant for second reaction
= pre-exponential factor for first reaction
= pre-exponential factor for second reaction
= activation energy for first reaction
= activation energy for second reaction
= ideal gas constant
= temperature of reaction (absolute temperature)
Reference
[1] H. Scott Fogler, Essentials of Chemical Reaction Engineering, Boston: Pearson Education, 2011 pp. 298–302.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.









 
RELATED RESOURCES
Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in Step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2014 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+