Roger Harrabin presents Climate Change: The Trump Card on BBC Radio 4 at 8pm on 3 January. Carbon8 near Bristol is buying in CO2 to make aggregates, and other researchers are working on making plastics and fuels from waste CO2.Īt last, it seems, the race to turn CO2 into profit is really on. We want to set up small-scale plants that de-risk the technology by making it a completely normal commercial option.”īy producing a subsidy-free carbon utilisation project, Carbonclean appears to have something of a global lead. 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. Globally, over 40 bioethanol facilities, among the lowest-cost BECCS applications, have announced plans to capture CO 2, and around 25 biomass and waste-fired combined heat and power plants could be. The firm’s managing director, Ramachandran Gopalan, told BBC Radio 4: “I am a businessman. Bioenergy with carbon capture and storage (BECCS) and direct air capture (DAC) with CO 2 storage are key carbon dioxide removal technologies. The firm behind the Tuticorin process says its chemicals will lock up 60,000 tonnes of CO2 a year and the technology is attracting interest from around the world. 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. The pipelines are pressurized as the only option for transporting the CO 2 over long distances. It comes mainly from industries such as brewing where it is cheap and easy to capture. Carbon capture and utilization (CCU) is defined as capturing CO 2 from industrial processes and transporting it via pipelines to where one intends to use it in industrial processes. There is already a global market for CO2 as a chemical raw material.
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