What is The Chemical Reaction equation of fat burning process inside human body ?

Thanks for the question. 

Your question sounds like very specific and Technical. During my Biochemistry module I went through several chemical reaction process. I don't have any specific ans but I could recommend you some articles that I have found through Google Scholars . Those papers seems very handy and I think you will find your specific ans if you go through this. 

1.  Chemical Reactions - Wiley

2. The Chemistry of Health - Science Education - NIH 

3. THE CHEMICAL COMPOSITION OF THE ADULT HUMAN BODY AND ITS BEARING ON THE BIOCHEMISTRY OF GROWTH* BY H. H. MITCHELL, T. S. HAMILTON, Ii‘. R. STEGGERDA, AND H. W. BEAN