Question:

The biomass gasifier is most versatile and any biomass including sewage sludge, pulping effluents can be gasified by

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Fluidized bed gasifiers are versatile because they provide good mixing, uniform temperature and better heat transfer.
  • Up draught gasifier
  • Down-draught gasifier
  • Cross draught gasifier
  • Fluidized bed gasifier
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The Correct Option is D

Solution and Explanation


Step 1:
Biomass gasification converts solid biomass into producer gas.

Step 2:
Different gasifiers are used depending on type, size, moisture content, and quality of biomass.

Step 3:
A fluidized bed gasifier provides good mixing between biomass particles and gasifying medium.

Step 4:
Due to better mixing and heat transfer, it can handle different types of biomass materials.

Step 5:
Therefore, it is considered versatile and suitable for biomass including sewage sludge and pulping effluents. \[ \boxed{\text{Fluidized bed gasifier}} \]
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