Chapter 2 data interpretation

FCE – HCMC University of Technology

Chemical Reaction Engineering

(Homogeneous Reactions in Ideal Reactors)

Mai Thanh Phong, Ph.D.

VIETNAM NATIONAL UNIVERSITY – HO CHI MINH CITY

UNIVERSITY OF TECHNOLOGY

FACULTY OF CHEMICAL ENGINEERING

Chemical Reaction Engineering

Mai Thanh Phong - HCMUT Chemical Reaction Engineering Apr 28, 2023 2

Chapter 2. Interpretation of Batch Reactor Data

1. Rates of reaction

1.1. Description of reaction rates

Reaction rates depend usually in a complex manner on the concentrations, the

temperature and often on the effect introduced by catalysts:

r = f ( ci

,T, catalyst)

The order of a reaction is related to the concentration dependence. Typical

examples are:

Irreversible Reactions:

• First order:

A  Products: r = k(T)CA k in [s-1]

• Second order:

A + B  Products: r = k(T)CACB

k in [m3

mol-1s

-1]

2A  Products: r = k(T)CA

2 k in [m3

mol-1s

-1]