Flashcards in C1.4 Crude Oil and Fuel Deck (18):
What do we fractionally distillate crude oil?
crude oil is a mixture of substances
Are the hydrocarbons in crude oil alkanes or alkenes?
What is the formula for the series of alkanes?
Are alkanes saturated?
Are hydrocarbons flammable?
Properties of a long chain of a hydrocarbon
high boiling point, low volatility, high viscosity, low flammability
Properties of a short chain of a hydrocarbon
low boiling point, high volatility, low viscocity and high flammability
what is global dimming?
soot and unburnt hydrocarbons travel to the upper atmosphere reflecting sunlight back into space
How is carbon monoxide formed?
not enough oxygen for complete combustion of a fuel.
then the carbon oxidises to form carbon monoxide
What is the health problem with carbon monoxide?
it affects the amount of oxygen that our blood can carry
what is a catalytic converter?
they are put in car exhausts to reduce carbon monoxide and nitrogen oxides produced by a car engine
carbon monoxide +nitrogen oxides
carbon dioxide +nitrogen (in a catalytic converter)
What are biofuels made out of?
plant and animals products
What is biodiesel made out of?
oils from plants
Advantages of biodiesel
less harmful to animals, burns cleanly, cheap, carbon neutral, produce other useful products
Disadvantages of biodiesel
use land for crops - famine, destruction of animal habitats, doesn't do well in cold or hot temps