Applied form of kinetic equation

At present, Temkin-Pyzhev equation expressed by fugacity is still applied frequently for the design of industrial reactors with iron-based ammonia synthesis catalysts  

In order to have the same basis for all materials, molar flux A o(kmol/h) and volume flux Vb[m (STP)/h] are used, both based on ammonia decomposition, then, 

As the surface area of catalyst S = tV ((T — specific surface area, m /m Vk — the compacted packing volume of catalyst, m ), its differential is  

In the formula mentioned above, kq is reaction rate constant, MPa h tq is virtual contacting time (f/Vbs), h Vbs is space velocity (Eo/Vk), h and K is equilibrium constant expressed by fugacity, i.e., (ki/k2)° . 

Equation (2.228) is an applied rate equation for design of industrial reactor. Take the gas based on the decomposition of ammonia as basis, which are mixture gases including hydrogen, nitrogen, ammonia, methane and argon. Their molar 

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