Biomass Energy Post Test1

Which biomass conversion process produces bio-oil as a primary product?

• Anaerobic digestion

• Fermentation

• Pyrolysis

• Gasification

How does pyrolysis differ from combustion?

• Pyrolysis requires more oxygen.

• Pyrolysis produces solid waste; combustion does not.

• Pyrolysis occurs in the absence of oxygen.

• Pyrolysis cannot convert biomass into energy.

What is the main challenge in using biomass for energy?

• Its unlimited availability

• Its renewable nature

• Handling and transportation

• Its high sulfur content

Tags

NGSS.HS-ETS1-3

What is a significant advantage of gasification over direct combustion?

• It can only process dry biomass.

• It produces higher quantities of pollutants.

• It offers more flexible energy products (e.g., syngas).

• It is less efficient.

Tags

NGSS.HS-ETS1-3

What role do gasifying agents play in biomass gasification?

• They reduce the energy content of the syngas.

• They act as catalysts to speed up the reaction.

• They provide the necessary environment for the gasification reaction.

• They are used to clean the syngas after production.

Which type of analysis is used to determine the elemental composition of biomass?

• Structural analysis

• Ultimate analysis

• Proximate analysis

• Thermogravimetric analysis

What defines 'biomass gasification'?

• Direct burning of biomass in air

• Conversion of solid biomass into liquid fuels

• Decomposition of biomass into gases in the absence of oxygen

• Conversion of biomass into a gaseous fuel in a controlled environment

What is the primary drawback of using high levels of excess air in combustion?

• Increased combustion efficiency

• Reduced emissions of pollutants

• Decreased combustion temperature

• Enhanced energy output

Tags

NGSS.HS-PS3-4

Which of the following is a benefit of using bioethanol as fuel?

• It increases greenhouse gas emissions.

• It can be produced from various biomass sources.

• It requires special engines.

• It has a lower energy content than gasoline.

Tags

NGSS.HS-ETS1-3

The process evaluation of a biomass to energy conversion technology does not typically include:

• Gasifier design

• Carbon gas efficiency

• Aesthetic appeal of the technology

• Carbon conversion efficiency

Tags

NGSS.HS-ETS1-3