Non-isothermal kinetic analysis and feasibilty study of medium grade crude oil field

摘要

In this research, non-isothermal kinetics and feasibility study of medium grade crude oil is studied in the presence of a limestone matrix. Experiments were performed at a heating rate of 10°C min?1, whereas the air flow rate was kept constant at 50 mL min?1 in the temperature range of 20 to 600°C (DSC) and 20 to 900°C (TG). In combustion with air, three distinct reaction regions were identified in all crude oil/limestone mixtures, known as low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (HTO). The activation energy values were in the order of 5–9 kJ mol?1 in LTO region and 189–229 kJ mol?1 in HTO region. It was concluded that the medium grade crude oil field was not feasible for a self-sustained combustion process.