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Can carbon capture be new hope for mitigating CO2 emissions?

  • Published
    14th Oct, 2022

Recently, the NTPC Vindhyachal in Madhya Pradesh Limited has taken an initiative to capture carbon as electricity production by coal accounts for 40% of the CO2 emissions.

  • India stands third among the GHG-emitting countries in the world, emitting 2,310 megatons of CO2 in 2019.
  • These scenarios necessitate the mitigation of GHG reduction in the country to combat the effects of climate change.
  • The pioneer project of a carbon capture plant installed in NTPC Vindhyachal is in line with this. Which is designed to capture 20 tonnes of CO2 per day.
  • It uses modified ‘tertiary amine’ to capture CO2 from flue gas from fossil-fired power plants, with a purity of more than 99 percent.
  • Tertiary amine (3oamine): An amine in which the nitrogen atom is directly bonded to three carbons of any hybridization. Which cannot be carbonyl group carbons.
  • CO2 will eventually be integrated with hydrogen to produce 10 tonnes of methanol per day through a catalytic hydrogenation process.
  • Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element. Usually in the presence of a catalyst such as nickel, palladium, or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an alkene.  Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogenation reduces double and triple bonds in hydrocarbons.
    • Currently, there are no Carbon Capture, Utilisation, and Storage (CCUS) projects in the pipeline in power plants for carbon capture in India.

    The Carbon Capture, Utilisation, and Storage (CCUS) Technique:

    • Carbon capture, utilization, and storage (CCUS), also referred to as carbon capture, utilization. Sequestration is a process that captures carbon dioxide emissions from sources, like coal-fired power plants, and either reuse or stores them. So, they will not enter the atmosphere.
    • Carbon dioxide storage in geologic formations includes oil and gas reservoirs, un-mineable coal seams, and deep saline reservoirs. Structures that have stored crude oil, natural gas, brine, and carbon dioxide over millions of years. 
    • The Energy Department supports the research and development of tools to assess environmental fitness. The predictability of future capacity within-proposed geologic storage sites.
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