6.7 Energy from Biomass

• What is biomass?

  Renewable organic matter
• Biomass includes materials like wood, crops, and animal waste
• Biomass can be used as fuel for heating, electricity generation, and transportation.
• What are examples of plant-based biomass sources?

  Wood, agricultural residues
• What are examples of animal-based biomass sources?

  Animal waste, sewage sludge
• What are examples of municipal solid waste biomass sources?

  Non-recyclable paper, yard waste
• Match the biomass source with an example:

  Plants ↔️ Wood

  Animals ↔️ Animal waste

  Municipal Solid Waste ↔️ Yard waste
• Biomass can be converted into solid, liquid, and gaseous energy forms.
• Match the biomass energy type with its example:

  Solid Biomass ↔️ Wood

  Liquid Biomass ↔️ Ethanol

  Gaseous Biomass ↔️ Biogas
• Biomass energy is considered renewable because its sources can be replenished over time.
• Arrange the processes of biomass conversion in the correct order:

  1️⃣ Combustion

  2️⃣ Gasification

  3️⃣ Anaerobic Digestion
• What is produced during gasification of biomass?

  Syngas
• Anaerobic digestion produces biogas, which is primarily methane
• What are common fuels used in biomass combustion for electricity generation or heating?

  Wood and agricultural waste
• In gasification, biomass is heated at high temperatures to produce syngas
• What primary gas is produced during anaerobic digestion of biomass?

  Methane
• Combustion involves burning biomass to produce heat for electricity generation or heating
• What are the primary components of syngas produced during gasification?

  Hydrogen and carbon monoxide
• Anaerobic digestion requires oxygen to decompose biomass.

  False
• What are the primary applications of biomass energy?

  Electricity, heating, transportation
• Match the application of biomass energy with its advantage:

  Electricity generation ↔️ Utilizes waste, reduces emissions

  Heating ↔️ Readily available fuel source, cost-effective

  Transportation ↔️ Renewable fuel source, reduces fossil fuel dependence
• What types of biomass are commonly used in biomass energy applications?

  Wood, agricultural residues, animal waste
• Biomass energy contributes to a sustainable energy mix by reducing reliance on fossil fuels.
• Biomass is defined as renewable organic matter from plants and animals
• What is an example of biomass use in electricity generation?

  Wood pellets in power plants
• Steps in the processes of biomass conversion:

  1️⃣ Combustion: Burning biomass to produce heat

  2️⃣ Gasification: Heating biomass to produce syngas

  3️⃣ Anaerobic Digestion: Decomposing biomass without oxygen
• Combustion of biomass can lead to air pollution from burning, whereas gasification reduces emissions with gas capture
• What is the environmental benefit of anaerobic digestion in biomass conversion?

  Reduces methane emissions
• Biomass energy applications include heating, electricity generation, and transportation.
• Match the environmental impact of biomass energy with its description:

  Greenhouse Gas Emissions ↔️ Reduces reliance on fossil fuels

  Deforestation ↔️ May occur if not managed sustainably

  Air Pollution ↔️ Combustion emits particulate matter
• Biomass energy's environmental impact depends on sustainable management practices
• What is a key advantage of biomass energy in terms of waste management?

  Converts waste into energy
• Biomass energy is considered carbon neutral because CO2 released during combustion is reabsorbed during plant growth.
• What is a significant disadvantage of biomass energy regarding land use?

  Requires land for growing crops
• Biomass energy conversion may be less efficient than fossil fuels.