Question

The process of converting biomass into biogas is called:

• A. Combustion
• B. Gasification
• C. Anaerobic digestion
• D. Pyrolysis

Hint:

Biogas is produced by anaerobic digestion, where microorganisms decompose biomass in the absence of oxygen.

Answer 1

The Correct Option is C

Biogas is produced from biomass such as animal waste, plant waste, sewage sludge, and organic matter. The conversion takes place in the absence of oxygen. Microorganisms break down organic matter and produce biogas. This biological process is called anaerobic digestion. The main components of biogas are: \[ CH_4 \] and: \[ CO_2. \] Combustion means burning in oxygen. Gasification converts carbonaceous material into fuel gas at high temperature. Pyrolysis is thermal decomposition in absence of oxygen. But conversion of biomass into biogas by microorganisms is: \[ \text{Anaerobic digestion}. \]