Post-combustion, CO2 is removed from flue gas by passing it through a liquid amine which dissolves the CO2.

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The most efficient way we have now to capture CO2 is to remove it from flue gas as the emissions escape.

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Initial testing at the PC4 began recently when researchers used a solvent called monoethanolamine (MEA) to capture CO2 from a slipstream of flue gas from the plant.

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The scrubbed alkaline clay would then be combined with treated flue gas, which is a carbon-rich gas that is normally released into the atmosphere during the manufacturing process.

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Vivek Nair, 23, of Singapore, who started Damascus Fortune, an organization in India that has developed a technology to produce carbon nanotubes and carbon nanofibers from industrial flue gas.

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The facility, which is called a "gas governor" and consists of a large slab of concrete, a flue pipe and a control box, is intended to regulate gas supply in the area.

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