US 2019/0071351 A1
Process and plant for manufacturing cement in the oxyfuel mode
(22) 31.03.2017
(43) 07.03.2019
(57) Process for operating a cement or lime plant comprising a cement or lime kiln and a calciner, wherein heat is generated by combustion of a fuel in the kiln and/or calciner, wherein a gas fed to the kiln and the calciner or to the calciner for combustion of the fuel contains an oxygen rich exhaust gas from a bioreactor containing photoautotrophic organisms and wherein the plant is preferably operated in the oxyfuel mode by using exhaust gas from the kiln and/or calciner together with the oxygen from the bioreactor as the gas fed to the kiln and/or calciner for combustion of the fuel.
(71) HeidelbergCement AG, Heidelberg (DE)
(73) HeidelbergCement AG, Heidelberg (DE)
