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Consider the following statements regarding pyrolysis:
1. It is the thermal degradation of plastic and biomass waste at different temperatures, in the presence of oxygen.
2. Pyrolysis of carbonaceous wastes like coconut shell yields charcoal.
3. It is considered as a cleaner technology in waste management compared to incineration.
Which of the statements given above is/are correct?
1. It is the thermal degradation of plastic and biomass waste at different temperatures, in the presence of oxygen.
2. Pyrolysis of carbonaceous wastes like coconut shell yields charcoal.
3. It is considered as a cleaner technology in waste management compared to incineration.
Which of the statements given above is/are correct?
- a)2 only
- b)1 and 3 only
- c)1 and 2 only
- d)2 and 3 only
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regardingpyrolysis:1. It is the ther...
- Pyrolysis is the heating of an organic material, such as biomass, in the absence of oxygen. It is considered as one of the most favorable and effective disposing of solid waste methods, which is an environmentally friendly and efficient way. Hence statement 1 is not correct.
- Pyrolysis of carbonaceous wastes like firewood, coconut, palm waste, corn combs, cashew shell, rice husk paddy straw and sawdust, yields charcoal along with products like tar, methyl alcohol, acetic acid, acetone and fuel gas. Hence statement 2 is correct.
- The key difference between incineration and pyrolysis is that incineration is the combustion of organic matter in the presence of oxygen whereas pyrolysis is the combustion of organic matter in the absence of oxygen.
- Issues with Incineration
- It reduces the recycling of recyclable materials because burning is easier and cheaper than recycling.
- It releases gaseous components such as carbon dioxide (CO2).
- It emits hazardous end products.
- It can lead to different health risks.
- Issues with Incineration
- Pyrolysis is an extremely efficient ways of using biomass to produce energy, both being more efficient than incineration. These technologies are cleaner than incineration and do not pose toxicity threats. Incineration also produces a highly toxic fly ash that must be safely disposed of; leading to transportation and residential health concerns. Pyrolysis on the other hand is a cleaner processes and do not pose toxicity threats, but remain “third generation” technologies. Hence statement 3 is correct.
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Community Answer
Consider the following statements regardingpyrolysis:1. It is the ther...
Explanation:
Pyrolysis Process:
- Pyrolysis is the thermal degradation of plastic and biomass waste at different temperatures, in the absence of oxygen.
- During pyrolysis, the waste material is heated in a closed environment, leading to the breakdown of complex molecules into simpler compounds like gases, liquids, and solids.
Charcoal Production:
- Pyrolysis of carbonaceous wastes like coconut shell yields charcoal.
- Charcoal produced through pyrolysis can be used as a fuel source or as a raw material in various industries.
Comparison with Incineration:
- Pyrolysis is considered a cleaner technology in waste management compared to incineration.
- Unlike incineration, which involves burning waste at high temperatures in the presence of oxygen, pyrolysis occurs at lower temperatures without oxygen, reducing the formation of harmful by-products like dioxins and furans.
Therefore, statement 2 (Pyrolysis of carbonaceous wastes like coconut shell yields charcoal) and statement 3 (It is considered as a cleaner technology in waste management compared to incineration) are correct, making option 'D' (2 and 3 only) the correct answer.
Pyrolysis Process:
- Pyrolysis is the thermal degradation of plastic and biomass waste at different temperatures, in the absence of oxygen.
- During pyrolysis, the waste material is heated in a closed environment, leading to the breakdown of complex molecules into simpler compounds like gases, liquids, and solids.
Charcoal Production:
- Pyrolysis of carbonaceous wastes like coconut shell yields charcoal.
- Charcoal produced through pyrolysis can be used as a fuel source or as a raw material in various industries.
Comparison with Incineration:
- Pyrolysis is considered a cleaner technology in waste management compared to incineration.
- Unlike incineration, which involves burning waste at high temperatures in the presence of oxygen, pyrolysis occurs at lower temperatures without oxygen, reducing the formation of harmful by-products like dioxins and furans.
Therefore, statement 2 (Pyrolysis of carbonaceous wastes like coconut shell yields charcoal) and statement 3 (It is considered as a cleaner technology in waste management compared to incineration) are correct, making option 'D' (2 and 3 only) the correct answer.
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Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer?
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Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer?.
Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regardingpyrolysis:1. It is the thermal degradation of plastic andbiomass waste at different temperatures,in the presence of oxygen.2. Pyrolysis of carbonaceous wastes likecoconut shell yields charcoal.3. It is considered as a cleaner technology inwaste management compared toincineration.Which of the statements given above is/arecorrect?a)2 onlyb)1 and 3 onlyc)1 and 2 onlyd)2 and 3 onlyCorrect answer is option 'D'. Can you explain this answer?.
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