UPSC Prelims 2019 · Question 66 of 99

UPSC Prelims 2019 question on Pyrolysis Plasma Gasification

In the context of which one of the following are the terms 'pyrolysis and plasma gasification' mentioned?

  1. Extraction of rare earth elements
  2. Natural gas extraction technologies
  3. Hydrogen fuel-based automobiles
  4. Waste-to-energy technologies
Show answer

Answer: D. Waste-to-energy technologies

Verdict

Correct answer: Waste-to-energy technologies → Option (d).

Analysis

Pyrolysis is the process of heating organic material at high temperatures in the absence of oxygen.

Plasma Gasification is an extreme thermal process using plasma which converts organic matter into a syngas (synthesis gas) which is primarily made up of hydrogen and carbon monoxide.

Both pyrolysis and plasma gasification are waste-to-energy technologies — they are used to convert waste materials into usable energy forms.

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