The process involves thermal decomposition of substances under the in...
- Pyrolysis is the thermal decomposition of materials at elevated temperatures in an inert condition in an oxygen-deficient environment.
- It involves a change in chemical composition. The word is coined from the Greek-derived elements pyro “fire” and lysis “separating”.
- It is most commonly used in the treatment of organic materials. It is one of the processes involved in charring wood.
- It is considered as the first step in the processes of gasification or combustion.
- The process is used heavily in the chemical industry, for example, to produce ethylene, many forms of carbon, and other chemicals from petroleum, coal, and even wood, to produce coke from coal.
- Aspirational applications of pyrolysis would convert biomass into syngas and biochar, waste plastics back into usable oil, or waste into safely disposable substances.
Hence option (d) is the correct answer.
Additional information: - Fermentation: It is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of the heat.
- Bio-methanation: It is a process by which organic material is microbiologically converted under anaerobic conditions to biogas.
- Incineration: It is a way to treat waste through controlled burning. Waste is shredded and heated to over 1025 degree Celsius in a furnace.
The process involves thermal decomposition of substances under the in...
Pyrolysis
Pyrolysis is the process described in the passage. It involves the thermal decomposition of substances in an oxygen-deficient environment, leading to the production of syngas. Here is a breakdown of the key points:
Definition:
- Pyrolysis is a chemical process that involves breaking down organic materials at high temperatures in the absence of oxygen.
- This results in the conversion of biomass into bio-oil and the production of syngas.
Process:
- During pyrolysis, the biomass is heated in a reactor at temperatures typically ranging from 400 to 800 degrees Celsius.
- The absence of oxygen prevents combustion, leading to the decomposition of the biomass into bio-oil, syngas, and biochar.
Applications:
- Pyrolysis is widely used in industrial processes for the conversion of biomass into valuable products such as bio-oil, biochar, and syngas.
- It is considered a sustainable method for energy production and waste management.
In conclusion, pyrolysis is a crucial process in the conversion of biomass into bio-oil and syngas, providing a sustainable solution for energy production and waste management in various industries.
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