chapt 15 (fuels and crude oil)

Question 1

Fuels and crude oil (3)

Answer 1

-> Natural gas (gaseous fossil fuel, mainly methane) & crude oil (petroleum, mixture of hydrocarbons) are considered non renewable sources of energy.
-> Crude oil can be separated by fractional distillation into useful fractions.
-> Biofuels are renewable energy sources to crude oil and natural gas. (bioethanol - fermentation of sugar in sugarcane)

Question 2

crude oil fract column (7)

Answer 2

Petroleum gas (cooking)
Petrol (fuel for vehicles)
Naphtha (feedstock)
Kerosine (jet fuel)
Diesel (fuel for trucks)
Lubricating oil (polish, wax)
Bitumen (making road and roofing)