Carbon capture technologies are key to dealing with the challenges of climate change and reaching the low-carbon emission goals. It is an innovative tool to attain net zero carbon emissions. The organizations are putting hands in hand to implement carbon capture and utilization (CCU) technology. It traps and stores CO₂ generated from sources like power generation, cement, steel, chemicals, or any other industrial facilities that use fossil fuels.

Why is CCU important?

CCU helps in attaining decarbonization goals that minimize alarming concerns like climate change, global warming, or the extinction of biodiversity. It prevents CO₂ emissions produced by human activities from reaching the atmosphere and securely stores them in various means. It is a long-term solution for achieving net-zero goals on a global scale. It is essential to form a sustainable and low-carbon economy for a greener environment.

How does carbon capture technology work?

CCU directly captures CO₂ from the air or at the time of emission from the source and stores it safely without permitting it to mix with the natural environment. CCS has two basic categories to store the CO₂ from the atmosphere, which are as follows.

• Biological carbon capture: This is the natural process where the ocean absorbs CO₂ by negative flux process or plants store carbon in the soil during the photosynthesis process. It also refers to “carbon sinks,” where natural habitats store CO₂ from the atmosphere.
• Geological carbon capture: This is the process of storing CO₂ in the geological formation or rocks generated from industrial sources. Geological carbon captures are the deep “saline aquifers” that are the underground geological formations filled with salt water used as CO₂ storage.

CCU Initiatives

Middle East countries are playing a key role in adopting CCU technologies. Saudi Arabia, the UAE, and Qatar with their innovative initiatives capture 10% of worldwide CO2, an approximate amount of 40 million tons. Not only some particular countries, but many global organizations also came forward in this initiative and invested in CCS facilities. In the US, large-scale saline aquifers are used for CCS storage purposes and successfully store 150,000 tonnes of CO₂ annually.

CCU technology enables widespread carbon capture across the globe and helps to combat climate change. It reduced the global CO₂ emission at a large scale. Still, the CCU technology needs huge advancement. McKinsey analysis suggests CCUs need to grow by 120 times by the year 2050 to achieve the target of net-zero carbon emissions.

Frequently Asked Questions

What is the obstacle in implementing CCU technology?

The main obstacle in CCU is the economic barrier because it requires investment in capturing, transporting, and storing CO₂.

What is the difference between CCU and CCS?

CCU stands for carbon capture and utilization where carbon is captured and stored from the atmosphere and used for any other process. CCS stands for carbon capture and storage that only stores the carbon from the atmosphere before emission. So, the difference between these two lies in what happens after storing CO₂.

Does carbon capture happen naturally?

Yes. Natural ecosystems such as oceans, wetlands, and forests absorb CO₂ from the air which is a biological process.