CO2 capture technology is not commonly used

The technology to capture and store carbon dioxide gas (CO ₂ ) to release this gas into the natural environment has caused many US ecologists to speak out because of its low profitability.

>>>The amount of CO2 in the atmosphere is rising

This technology recovers carbon dioxide from turbines or boilers, then releases it to the ground. However, this method is mainly used only in oil and gas exploitation, in order to recover methane and CO2 released from oil fields.

According to Robin Knight, a PFC Energy Researcher, the technology could increase oil production because recovering carbon dioxide and compressing it would put pressure on the oil to rise. However, if this method is applied, it can only be recovered but not stored in CO ₂ .

Robin Knight said in the industry, especially in electricity production, carbon dioxide emissions and recovery are very high, even up to 70% of the cost of operating a power plant. In addition, the installation of this technology requires a huge infrastructure, including a separate power supply system.

Mr. Philippe Pealinck, a leader of Alstom Group, said it was the complexity that caused the CO2 capture and storage technology not to be of much interest in the United States . Several coal-fired thermal power plants, equipped with CO2 capture and storage systems, have not been implemented, especially the Future Gen 2.0 project in the Illinois region of North America. Sponsored by the US Government for the purpose of "not emitting any CO ₂ " and having an investment of up to one billion dollars, but the project met one after another.

Storage of CO2 is also a problem because the reservoir must be hundreds of meters deep underground and capable of storing gas for hundreds of years.

For ecologists, the recovery and storage of CO _{2 is} not profitable because "investment in this technology is less effective than using renewable energy" - Mr. Kyle Ash, representative of the Peace Organization Green (Greenpeace) emphasizes.