Petroleum and its Products

123456789101112
Across
  1. 4. From bottom to top, the volatility of fractions obtained from crude oil separation ...
  2. 8. the boiling point of fractions obtained from crude oil separation decreases from bottom to top.
  3. 10. crude oil separation method based on boiling point difference
  4. 12. catalytic … is the process when heavy hydrocarbon moleculer are broken up into lighter molecules
Down
  1. 1. Compound made of hydrogen and carbon atoms, simplest form of organic compound
  2. 2. solid, insoluble matter formed from dead organisms with the absence of oxygen in sedimentary rocks
  3. 3. used as fuel in trucks and heavy vehicles, the fraction ranges from C14-C18
  4. 5. raw material in the chemical industry, obtained from the third fraction from the top of a crude oil separation
  5. 6. Most commonly used petroleum derivate, used to power cars, is the second highest fraction formed with boiling point ranges between 40°C – 100°C
  6. 7. the main constituent of natural gas
  7. 9. the … length of the fraction decreases from bottom to top, as the number of carbon atoms decreases
  8. 11. A type of fossil fuel, formed when dead plant matter decays and hardens.