US 2021/0198142 A1

Oxyfuel clinker production with special oxygen addition

(22) 26.04.2019

(43) 01.07.2021

(57) Processes and plants for producing cement clinker, in which an oxygen-containing gas having a proportion of 15% by volume or less of nitrogen and a proportion of 50% by volume or more of oxygen is conveyed from a first section of the cooler directly adjoining the top of the furnace into the rotary furnace and is optionally additionally conveyed to the calciner, and where the total gas streams fed in to the combustion processes consist to an extent of more than 50% by volume (preferably more than 85% by volume) of oxygen.

(71) thyssenkrupp Industrial Solutions AG, Essen (DE)

(73) thyssenkrupp Intellectual Property GmbH, Essen (DE)


Related articles:

Issue 2020-1-2 WO 2019/211202 A1

Oxyfuel clinker production with special oxygen addition

(22) 26.04.2019 (43) 07.11.2019 (57) Methods and systems for the production of cement clinker, wherein an oxygen-containing gas, which has a proportion of 15 vol.% or less of nitrogen and a proportion...

Issue 2021-7 US 2021/0238091 A1

Oxyfuel clinker production without recirculation of the preheater exhaust gases

(22) 26.04.2019 (43) 05.08.2021 (57) Processes and plants for producing cement clinker, wherein no recirculation of preheater exhaust gases occurs and the ratio of solid fed in to exhaust gas in the...


polysius® pure oxyfuel technology for CO2 capture in cement production

The research company “CI4C” – Cement Innovation for Climate, founded by the four cement manufacturers Buzzi Unicem SpA – Dyckerhoff GmbH, HeidelbergCement AG, Schwenk Zement GmbH & Co. KG and...

Issue 2021-8 WO 2021/193368 A1

Cement clinker and cement composition

(22) 18.03.2021 (43) 30.09.2021 (57) Provided is cement clinker and a cement composition with which it is possible to improve the strength development of mortar while suppressing the increase in...

Issue 2021-6 WO 2021/001781 A1


(22) 02.07.2020 (43) 07.01.2021 (57) The present invention relates to clinker, in particular cement clinker. The invention provides a method of preparing clinker and extends to clinker prepared in...