fuels ppt1 2-2

Identify a type of solid fuel used in the UK from the list below.

• Peat

• Petrol

• Ethanol

• Methanol

What is coal classified based on?

• The amount of moisture

• The amount of carbon, oxygen, and hydrogen

• The color of the coal

• The age of the coal

What is the typical heat content range for bituminous coal?

• 2.2–5.5 kW/kg

• 5.5–8.3 kW/kg

• 7–10 kW/kg

• 10 kW/kg

How is coke produced?

• By heating coal in a coke oven to around 1,000°C

• By burning coal directly

• By mixing coal with water

• By compressing coal into briquettes

What gases are given off when coal is heated to produce coke?

• Methane gas and coal tar

• Oxygen and nitrogen

• Hydrogen and carbon dioxide

• Sulfur dioxide and carbon monoxide

What is a characteristic of coke when it burns?

• It burns clearly and without a flame

• It produces a lot of smoke

• It burns with a bright flame

• It releases a strong odor

In which industries is coke commonly used?

• Steelmaking, chemical processes, and domestic boilers

• Textile, automotive, and food processing

• Electronics, pharmaceuticals, and agriculture

• Construction, mining, and transportation

What is peat primarily formed from?

• Decaying animals

• Decaying plants

• Mineral deposits

• Fossilized wood

Why does peat not decompose completely?

• High temperature

• Lack of oxygen

• Excessive moisture

• High acidity

What is a characteristic of peat when it is burned?

• Produces no ash

• Produces large amounts of ash

• Burns with a blue flame

• Emits a sweet smell