The “Paris agreement” on climate change: An opportunity for cement sector to further reduce its CO2 emissions

摘要

Carbon emissions is an important sustainability issue for the cement industry as global cement manufacture accounts for about five percent of all man-made CO emissions: about 60% of these emissions come from the raw materials used in the manufacturing process of cement, the basic chemical de-carbonation of limestone into lime releasing CO whereas about 40% of these emissions come from the energy required to ensure the above chemical reaction and to heat the materials to a temperature of about 1450°C.