Catalytic oxidation of heavy hydrocarbons over Pt/Al2O3. Oxidation of C10+ solid hydrocarbons representative of soluble organic fraction of Diesel soots

- Solid hydrocarbons (C20-C42) are representative of soluble organic fraction of Diesel soots.
- Oxidation of these hydrocarbons mixed with a Pt catalyst is dependent on their volatility.
- Their molecular structure (number of cycles, H/C ratio, etc.) influences oxidability and volatility in a similar manner.
- There is a good correlation between light-off (oxidation) and boiling temperatures (volatility).
- Optimal oxidation process occurs when there is a good fit between these temperatures.