B.Tech Sem I Biofuels: Synthesis, Properties, and Applications

Which of the following best describes biofuels?

Fuels derived from recently produced biomass

What is the main characteristic of biofuels compared to fossil fuels?

Derived from organic materials

Which of the following materials can be used as feedstock for biofuel production?

Animal waste

What is the primary sector for which biofuels are used?

Transportation Signup and view all the answers

Why are biofuels considered a source of renewable energy?

Because their feedstock can be replenished readily Signup and view all the answers

What are the main benefits generally associated with biofuels?

Sustainability and reduction of greenhouse gas emissions Signup and view all the answers

Which category of biofuels is primarily produced from food bio-feedstocks like soybeans, palm, canola, and rapeseed?

First generation biofuels Signup and view all the answers

What is the primary source of ethanol used as a first generation biofuel?

Fermenting sugar or starch in food-crop sources Signup and view all the answers

Which of the following is NOT a common first-generation biofuel?

Cellulosic biofuels Signup and view all the answers

What are second generation biofuels primarily produced from?

Non-food crops like cellulosic biofuels and waste biomass Signup and view all the answers

What is the primary source of second generation ethanol?

Dedicated biofuel grasses and crop residues Signup and view all the answers

Which of the following is a pro of second generation biofuels?

Less dependence on geographical location Signup and view all the answers

What is a con of first generation biofuels?

Low land use efficiency Signup and view all the answers

Which category of biofuels includes biofuels produced from conventional, well-established processes?

First generation biofuels Signup and view all the answers

What do first generation biofuels primarily utilize from the above-ground biomass produced by a plant?

Only a specific (often edible) portion Signup and view all the answers

What is a con of second generation biofuels?

High capital cost Signup and view all the answers