Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?1. Coconut shells, groundnut shells and rice husk can be used in biomass gasification.2. The combustible gases generated consist of hydrogen and carbon dioxide only.3. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.Select the correct answer using the codes given below:
✓ Correct answer: a) 1 only
ExplanationBiomass gasification is a process that converts biomass (organic materials like wood, crop residues, and animal waste) into syngas (synthetic gas) by heating it in a controlled environment with limited oxygen or steam.Statement 1 is correct: Rice husk, groundnut shells, and coconut shells can all be utilised in the biomass gasification process.Statement 2 is incorrect: Biomass gasification involves burning of biomass in a limited supply of air to provide a combustible gas consisting of carbon monoxide, carbon dioxide, hydrogen, methane, water, nitrogen, along with contaminants like small char particles, ash and tars.Statement 3 is incorrect: Combustible syngas is frequently used as a fuel for internal combustion engines or as a step in the synthesis of other compounds.Consequently, the flammable gases produced by biomass gasification can be used for direct heat generation as well as in internal combustion engines.195
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