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UPSC Prelims 2019 Paper-1 📅 02 Jun, 2019

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

A
Extraction of rare earth elements
B
Natural gas extraction technologies
C
Hydrogen fuel-based automobiles
D
Waste-to-energy technologies
Result Summary
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APEDIA

UPSC Prelims
2019 • 02 Jun, 2019 • Paper-1
In the context of which one of the following are the terms 'pyrolysis and plasma gasification' mentioned?
Correct Answer
Waste-to-energy technologies
Technology Application Analysis: Pyrolysis involves thermally decomposing organic materials at elevated temperatures in an oxygen-free environment. Plasma gasif......
Ref/Book : UPSC Prelims 2019
Ref. Subject Science and Technology
Chapter -
Ref. Topic Emerging Technologies
Pg. No -
💡 Analysis & Explanation
Technology Application Analysis ▼
Pyrolysis involves thermally decomposing organic materials at elevated temperatures in an oxygen-free environment. Plasma gasification uses highly ionized gas (plasma) to convert organic matter into synthetic gas (syngas) and solid slag.
Primary Utility ▼
Both are advanced, environmentally viable processes utilized to treat and manage municipal solid waste and industrial trash. Instead of dumping in landfills, these processes safely convert the refuse into usable electricity and fuels.
Conclusion ▼
These are clearly categorized as sophisticated waste-to-energy technologies.
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