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Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : A fluidised bed gasifier is most versatile and can handle biomass with high ash content
Reason (R) : Fluidised bed generally contains either inert material or reactive material
In light of the above statements, choose the correct answer from the options given below.
EXPLANATION
Agricultural Lift Pumps
- Fluidised Bed Gasifier Characteristics:
- Assertion (A): A fluidised bed gasifier is most versatile and can handle biomass with high ash content. $\implies$ True.
- Fluidised bed gasifiers operate with intense gas-solid mixing and uniform temperature distribution, enabling them to process low-bulk density, high-ash agricultural residues and fine biomass without clinkering or slagging.
- Reason (R): Fluidised bed generally contains either inert material or reactive material. $\implies$ True.
- The bed material typically consists of inert granular solids (silica sand, alumina) or catalytic/reactive materials (dolomite, olivine) that act as a thermal reservoir.
- Relationship: Reason (R) describes bed material composition, but does not explain why it can handle high-ash biomass (which is due to isothermal conditions and high turbulence preventing local hot spots).
- Conclusion: Both (A) and (R) are true but (R) is NOT the correct explanation of (A) (Option 2).
Correct option: (2) Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
Explanation not matching this question?
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