The Reaction Kinetics of Heavy Oil Combustion and Oxidation: Transition from Diffusion Limitation to Chemical Reaction Control
Abstract
. Isoconversional analysis combined with mechanistic modeling reveals that the reaction is predominantly controlled by three-dimensional diffusion (D3 model) at intermediate conversions (α = 0.4-0.7), while a transition to chemically controlled kinetics (R3 model) occurs at higher conversions (α ≥ 0.8).The proposed framework provides a robust approach for identifying kinetic control mechanism transitions during complex combustion processes and can be extended to other heavy oils, oil sands, and asphaltene-rich systems.
Fields of Study & Subjects
Petroleum Processing and Analysis
Advanced Combustion Engine Technologies
Combustion and flame dynamics
Publication details
- Journal / source
- ACS Omega
- Publisher
- American Chemical Society (ACS)
- Volume
- 11
- Issue
- 18
- Pages
- 27391–27403
- Publication date
- 29 April 2026
- Language
- EN