Across
- 2. Premature ignition of fuel
- 6. (2n+1)H2 + nCO => C(n)H(2n+2) + nH2O
- 9. Process of refinement through separating into fractions
- 10. Without this, crude oil is useless
- 13. Contains sulfur impurities that must be removed before it can be used
- 15. Method of increasing the branching in a molecule
Down
- 1. The main element in fossil fuels
- 3. The cleanest form of fossil fuel
- 4. Breaking down larger molecules
- 5. Measure of a fuel's resistance to knocking
- 7. Has an octane number of 0
- 8. Process for improving quality of crude oil
- 11. Measure of one's contribution to global warming
- 12. Converting coal into synthesis gas
- 14. The most abundant fossil fuel