Ambuja Cements, a subsidiary of the Adani Group, is evaluating carbon capture technology at its 6.6 million tonnes per annum Sanghi cement plant in Gujarat, India. The company has partnered with UK-based Leilac to pilot a steel tube technology that indirectly heats the kiln, capturing a concentrated stream of CO2 from the calcination process. The pilot could scale to capture over one million tonnes of CO2 annually. Leilac's technology separates the captured CO2 from furnace exhaust gases, simplifying storage or utilization. It also supports the use of renewable electricity in cement production. Ambuja describes this as a step toward large-scale deployment of carbon capture and utilization at its manufacturing sites. Cement production accounts for about 5.8% of India's CO2 emissions, according to the Global CCS Institute. The project highlights a growing trend of industrial carbon capture in emerging markets, where cement is a major emissions source. If successful, it could offer a template for other large cement producers looking to reduce process emissions without fully redesigning their plants.
