Module 4: Unit processes 2
  Lecture 35: Material balance in cupola
 


Solution:


balance given weight of slag =50 kg                                (a)

To find amount of air, we have to find oxygen of air used to oxidize .









Volume of air consumed in oxidation                        
(b)

Volume of air for oxidation of carbon of coke can be found one we know . Since C oxidizes to .

Let Y kg mole  in exit gas



Carbon and oxygen balance:Let x kg mole of oxygen is required for oxidation of carbon of coke

                                             
        (1)

                                                                      
(2)

Solving equations 1 and 2 we get



Volume of air                                                   
       (c)

Volume of gas

                     
       (d)


References
1. Rosenquist: Principles of extractive metallurgy
2.Butts: Metallurgical problem