This book thrives to evolve a technique to estimate kinetic parameters of naphtha lump-feed. Steady state material and energy balance models were developed from first principles on the mole fractions of feeds and temperature of the species (Parafins P; Naphthenes N; Aromatics A; and Gas G). The research focused to minimize the objective function S used to search for optimum kinetic parameters of the feeds. The achieved optimum parameters were used to solve for optimum yields of the products.