Its CEO, Aniruddha Sharma, said: “So far the ideas for carbon capture have mostly looked at big projects, and the risk is so high they are very expensive to finance. The firm’s headquarters are now based in London’s Paddington district. They failed to find Indian finance and were welcomed instead by the UK government, which offered grants and the special entrepreneur status that whisks them through the British border. The inventors of the new process are two young chemists at the Indian Institute of Technology in Kharagpur. It’s no panacea, but it would be a valuable contribution because industrial steam-making boilers are hard to run on renewable energy. I needed a reliable stream of CO2, and this was the best way of getting it.” He says the plant now has virtually zero emissions to air or water.Ĭarbonclean believes capturing usable CO2 can deal with perhaps 5-10% of the world’s emissions from coal. The firm’s managing director, Ramachandran Gopalan, told BBC Radio 4: “I am a businessman. The firm is now using the CO2 from its own boiler to make baking soda – a base chemical with a wide range of uses including glass manufacture, sweeteners, detergents and paper products. The new kit has been installed at Tuticorin Alkali Chemicals. It is just slightly more efficient than the current CCS chemical amine, but its inventors, Carbonclean, say it also needs less energy, is less corrosive, and requires much smaller equipment meaning the build cost is much lower than for conventional carbon capture. The Indian plant has overcome the problem by using a new CO2-stripping chemical. Until now it has been too expensive without subsidy to strip out CO2 from the relatively low concentrations in which it appears in flue gas. It comes mainly from industries such as brewing where it is cheap and easy to capture. There is already a global market for CO2 as a chemical raw material.
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