thyssenkrupp to build first industrial-scale plant in Cameroon
thyssenkrupp is to fit the first cement plant with a system for the production of calcined clay for the Dutch-based company Cimpor Global Holdings. The technology developed by thyssenkrupp lowers CO2 emissions in cement production by up to 40 percent. It involves replacing part of the cement clinker with calcined, i.e. thermally activated, clay. Cimpor Global Holdings will use the technology, known as "polysius activated clay", on an industrial scale at a new plant being built near the Cameroon sea port of Kribi. On completion in fall 2021, the plant will save more than 120,000 tons of CO2 emissions every year. Under the order, thyssenkrupp is carrying out engineering, procurement, construction and commissioning of the new plant, which will produce 720 tons of activated clay per day. It is the second calcined clay project of Cimpor Global Holdings. Alongside technology for the production of thermally activated clays, thyssenkrupp is working on further products and processes for the "green" cement plant of the future. One example is Oxyfuel technology. While the use of activated clay helps substantially reduce CO2 emissions and energy consumption, a certain amount of limestone is still needed because it is essential for the strength behavior of concrete.
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