O'Reilly logo

Industrial Chemical Process Analysis and Design by Mariano Martín Martín

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

image

ΔH: Heat of reaction per mol of N2 (−26,000 kcal/kmol N2)

S2: Cross-sectional area of catalyst zone 0.78 m2

ra: Reaction rate (kmol N2, h m2)

cp,g: Heat capacity of the reacting gas 0.719 kcal/kg·K

Nitrogen mass balance:

ra=dNN2dx=f[K1PN2·PH21.5PNH3K2PNH3PH2]K1=1.78954×104exp(20,800RTg)K2=2.5714×1016exp(47,400RTg)

image

f: Catalyst activity

Pi: Partial pressure of the species

Ki: rate constants,

where

PN2=Po(atm)·[NN2Ntotal]PH2=3·PN2PNH3=Po(atm)·[NNH3Ntotal]NNH3=NNH3,o+2(NN2,oNN2)Ntotal=NN2+3·NN2+NNH3,o+Ninertes+2(NN2,oNN2)

and the pressure drop ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required