Talking Climate Change with Yash Negi

Episode 24: Carbon Capture Storage

December 08, 2020 Yash Negi Season 1 Episode 24
Talking Climate Change with Yash Negi
Episode 24: Carbon Capture Storage
Show Notes

In this episode of the podcast, I have talked about Carbon Capture Storage and why it matters.
Topics:

  • What is CCS?
  •  CCS is a three-step process 
  • Why is it important?
  • Where can captured CO2 can be stored?
  • What role it can play in climate change?
  • Components of a CCS system
  • Technologies used to capture it

Additional Info:
The steps moving CCS to commercialization rely on making the necessary investments in the technology and involve both the private and public sectors. The four essential elements include:  

  •  private–public partnerships are needed to build and operate approximately ten demonstration plants worldwide over the next decade;  
  •  governments (with advice from the private sector) must create a market for CCS through climate policy. The policy should be technologically-neutral(i.e. avoid picking winners and losers); 
  •  governments (with advice from the private sector) must provide a suitable regulatory environment for CCS. These regulations must be stringent enough to protect the public interests, but not overly stringent so as to stifle CCS development; 
  •  the private sector must develop a business organization to address all components of the CCS value chain. The implementation of CCS, including decisions on the appropriate technologies, needs to be left up to the private sector.  

 Absorption:
 A liquid sorbent is used to separate the CO2from the flue gas.The sorbent can be regenerated through a stripping or regenerative process by heating and/or depressurization. This process is the most mature method for CO2 separation.  Typical sorbent  include mono ethanolamine (MEA), diethanolamine (DEA)and potassium carbonate.
 Adsorption: 
 In contrast to absorption processes which use a liquid absorbent, a solid sorbent is used to bind the CO2on its surfaces. Large specific surface area, high selectivity and high regeneration ability are the main criteria for sorbent selection. Typical sorbents include molecular sieves, activated carbon, zeolites, calcium oxides, hydro-talcites and lithium zirconate.  

Once CO2 is separated from the rest of the flue gas components it needs to be transported to the storage site or to the facilities for its industrial utilization. Whatever the chosen final fate of CO2,reliable, safe and economically feasible system of transport is a key feature of any CCS project. Depending on the volumes involved a variety of means of transport may be utilized, ranging from road tankers to ships and pipelines. A study related to CCS in the North Sea highlights that CO2transport by ship tanker, using technologies derived from the LPG carriers, is feasible and cost competitive with pipelines with a total cost ranging from 20 to 30 USD/tonne when more than 2MtCO2/year are transported within the distances involved in North Sea storage .
Twitter: https://twitter.com/realyashnegi
Website: climatology.in
Email: yashnegi@xlimatology.in

Note: I apologize for the noise coming from the background, I tried my best to cut the noise from the background but it is the best edit I can do. I will cut the entire unwanted noise from my background in the upcoming podcast. I am once again Sorry, I promise it won't happen again.

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