This work aims to evaluate formed products according to the Anderson-Schulz-Flory (ASF) distribution in Fischer-Tropsch synthesis. The crystalline phases ofcerium and cobalt were confirmed in the mesoporous structure of the SBA-15molecular sieve. The ASF distribution model showed a distribution of products with two chain growth probabilities, alpha(1) and alpha(2) for Co/Ce/SBA-15 catalyst. Themaximum production of hydrocarbons was in the range of light olefins, followedby gasoline. [GRAPHICS] .