Environmental, Health, and Safety Guidelines for Cement ...
kiln technology was used for 40 percent of cement production in 2013. See IEA and WBCSD (2013). 6 This range for thermal energy use for PH and PHP kilns is based on data in EC (2013), Sec. 1.3.3, Table 1.18, page 47; and WBCSD (2016) "Getting the Numbers Right" database.