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clc
clear
printf("example 3.14 page number 102\n\n")
//to find the fraction of purged recycle and total yield
//x- moles of N2 and H2 recycled; y - moles of N2 H2 purged
Ar_freshfeed = 0.2;
//argon in fresh feed is equal to argon in purge
y = 0.2/0.0633; //argon in purge = 0.0633y
x = (0.79*100 - y)/(1-0.79);
printf("y = %f kmol\nx = %f kmol",y,x)
//part 1
fraction = y/x;
printf("\n\nfration of recycle that is purged = %f",fraction)
//part 2
yield = 0.105*(100+x);
printf("\n\noverall yield of ammonia = %f kmol",yield)
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