The CuO/γ-Al

2

O

3

/cordierite catalyst

after being sulfated by sulfur dioxide (SO

2

) at 673 K

exhibits high activities for selective catalytic reduction (SCR) of nitrogen oxide (NO) with ammonia (NH

3

) at 573-723 K. The intrinsic kinetics of SCR of NO with NH

3

over CuO/γ-Al

2

O

3

/cordierite catalyst has been measured in a fixed-bed reactor in the absence of internal and external diffusions. The experimental results show that the reaction rate can be quantified by a first-order expression with activation energy

E

a

' of 94.01 kJ·mol

-1

and the corresponding pre-exponential factor

A

' of 3.39×10

8

cm

3

·g

-1

·s

-1

when NH

3

is excessive. However

when NH

3

is not enough

an Eley-Rideal kinetic model based on experimental data is derived with

E

a

of 105.79 kJ·mol

-1

the corresponding

A

of 2.94×10

9

cm

3

·g

-1

·s

-1

heat of adsorption Δ

H

ads of 87.90 kJ·mol

-1

and the corresponding Aads of 9.24 cm

3

·mol

-1

. The intrinsic kinetic model obtained was incorporated in a 3D mathematical model of monolithic reactor

and the agreement of the prediction with experimental data indicates that the present kinetic model is adequate for the reactor design and engineering scale-up.