I want to break my volatile into no of gas phase species.

volatile= X1CO+ X2CO2+X3H2+X4CH4

I use discrete phase model to inject particles from the fuel inlet , and use devolatization model (single rate) to break up my volatile in these mentioned gas species .and for the reaction, I use species transport theorem, where I generate reaction ;

1vol= 0.3CO+0.3H2+0.2CO2+0.1CH4+0.1H20 ( FOR EXAMPLE)

NOW, first of all , warning appears that my stiochiometry is not balanced.But still, I run it .After solving, i do not get my desired result.

How can I break my volatiles into gas species like that? Am I using right model? and then will I also use species transport reaction in addition. Is my approach right?