Kinetic model for hydrocracking of Iranian heavy crude with dispersed catalysts in slurry-phase

摘要

A five-lump kinetic model has been presented to describe the process of heavy oil hydrocracking, and tested in moderate condition. In the condition of low temperature and pressure relatively, coke formation can be controlled and the model is well applied with product distribution. In this paper, we explored the process of hydrocracking in slurry-phase by using dispersed catalyst at higher temperature and pressure, it was found that at the high residue conversion, the coke formation could be controlled even if the residue conversion is up to 90%. Then, a five-lump model by analytical method based on Monte Carlo technique was used to calculate the kinetic parameters, and the product distribution in the condition of high conversion was predicted successfully.