Point Carbon capture is the practice of storing carbon dioxide (CO2) that is produced during industrial and power-generating activities instead of releasing it into the atmosphere. The use of CCS technologies has the potential to significantly lower CO2 emissions from energy systems. 

Nearly all the CO2 produced by facilities with CCS can be captured (some currently capture 90 or even 100 percent). This explanation gives you a general understanding of Carbon Capture technology, including how it operates and several other details you might be interested in learning.

Point Source Carbon Capture

What is Point Source Carbon Capture? 

Point source capture technology incorporates techniques for directly collecting carbon dioxide (CO2) from power plants in order to reduce power plant emissions, which account for a sizable portion of total anthropogenic CO2 emissions. 

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How Does Carbon Capture Work?

Although carbon capture technology has been used in North America since the 1970s at several industrial sites, its use in power production is relatively new.

They centered on early commercial applications of carbon capture on specific industrial processes that naturally extract carbon dioxide from concentrated streams. 

They must alter current systems to absorb and concentrate carbon dioxide for other industrial processes and electricity generation, typically using one of these techniques:

  1. Pre-Combustion Carbon Capture 

Synthesis gas, which is also known as syngas, is created when fuel is gasified (as opposed to combusted) and consists primarily of carbon monoxide (CO) and hydrogen (H2). They subsequently change the CO into CO2 through a further shift reaction, and the CO2 and they normally separate H2 using a physical solvent. 

Pre-combustion carbon capture can be used ‌with an integrated gasification combined cycle (IGCC) power plant, which burns the H2 in a combustion turbine and powers a steam turbine with the exhaust heat.

  1. Post-Combustion Carbon Capture 

They normally remove carbon dioxide from the flue gas from the combustion of fossil fuels through post-combustion capture using chemical solvents. This technique is most likely to be used in retrofits of current power plants for carbon capture.

  1. Oxyfuel Carbon Capture

To enable oxyfuel collection, they must burn fossil fuels in pure oxygen (as opposed to air) until the exhaust gas is carbon dioxide-rich.

What are the Pros and Cons of Point Source Carbon Capture? 

Pros

Here are some of the Pros of Carbon Capture:

  1. CCS can reduce emissions at the source.
  2. CO2 is easier to remove at point sources.
  3. You find other pollutants that can be removed simultaneously. 
  4. CCS can reduce the Social Cost of carbon.

Cons 

Here are some ‌CONS of Carbon Capture:

  1. Making use of CCS for oil recovery can reduce its purpose to nothing. 
  2. The cost of CCS is high 
  3. One isn’t certain about the Long-Term Storage Capacity for CO2. 
  4. CO2 transport and Storage Sites can be risky. 
  5. The perception of the public regarding placing CO2 near them is negative. 

How Carbon Capture is Used 

Instead of being buried underground, CO2 can occasionally ‌make manufactured items, in industrial processes, and in other ways. The abbreviation CCUS results from such use (carbon capture, utilization, and storage). 

Depending on the exact usage and which fuels or other materials‌ the CO2 is replacing, different CO2 uses result in varying degrees of emissions reductions. 

Although some uses, like soda carbonation, release their CO2 immediately upon opening and are hence unacceptable usage options, the eventual consequences of climate change rely on whether these uses result in the permanent sequestration of the CO2.  

Enhancing oil recovery (EOR), a technique for extracting oil that combines CO2 and water to push oil up the well and store CO2 underground, is one of the primary uses of CO2. Selling CO2 for EOR and other purposes can bring in money for CCS facilities, encouraging the usage of CCS technologies from now on.

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4 Point Source Carbon Capture Storage

Fact is, storage, deep underground storage of carbon dioxide is possible by injecting it into geological formations. 

They could store the carbon dioxide emissions from centuries of ongoing usage of fossil fuels in American geological formations. Geologic storage options for carbon dioxide include:

  1. Reservoirs for oil and gas (Enhanced Oil Recovery with Carbon Dioxide, Carbon Dioxide -EOR). By injecting carbon dioxide to extract more oil from developed sites, oil and gas reservoirs provide geologic storage potential and commercial opportunities.
  1. Deep Saline Formations. You can find these porous rock formations infused with brine across the United States but have not been examined as extensively as oil and gas reservoirs.
  1. Beds of coal carbon dioxide storage potential may exist in coal beds that are ‌too deep or too thin to be economically mined. Improved coaled methane recovery (ECBM), which extracts methane gas, can make use of captured carbon dioxide.
  1. Shale basins and basalt formations. They also regard these as potential geologic storage areas for the future.

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How Carbon is Transported?

They must move carbon dioxide from its source to a storage location once they have captured it. In the United States, there are over 4,500 miles of pipes that transport carbon dioxide for ‌enhanced oil recovery, but more will be required.

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Conclusion 

Asides from all that has been stated about Carbon Capture, it is important to note that Carbon Capture is a solution that needs additional research before expanding its implementation around the world. 

And, it’s vital to make sure that the process will not do more harm than good.