AU2016251120 (A1)

Treatment of exhaust gases from cement clinker production

(22) 08.04.2016

(43) 28.09.2017

(57) A method for the treatment of exhaust gases from the production of cement clinker in a rotary kiln, in which raw materials are ground in a mill to form raw meal, raw meal is preheated in a counterflow configuration in a preheater with exhaust gas from the rotary kiln and is optionally pre-calcinated, preheated and possibly pre-calcinated raw meal is supplied to the rotary kiln and is burned in the rotary kiln to form cement, the exhaust gas from the rotary kiln is, before entering the preheater, denitrogenized by way of selective non-catalytic nitrogen oxide reduction with a reagent which provides ammonia, and wherein, according to the invention, the exhaust gas from the preheater is subjected to gas conditioning and catalytic oxidation of ammonia. The object is furthermore achieved by way of a device for gas conditioning and catalytic oxidation, which device is arranged between preheater and mill.

(71) HeidelbergCement AG

x

Related articles:

Issue 5/2018 US2018050303 (A1)

Treatment of exhaust gases from cement clinker production

(22) 08.04.2016 (43) 22.02.2018 (57) Method for the purification of exhaust gas from the production of cement clinker in a rotary kiln, in which raw materials are ground in a mill to form raw meal,...

more
Issue 12/2016 WO 2016/169638 A1

Treatment of exhaust gases from cement clinker production

(22) 08.04.2016 (43) 27.10.2016 (57) A method for the treatment of exhaust gases from the production of cement clinker in a rotary kiln, in which raw materials are ground in a mill to form raw meal,...

more
Issue 03/2024 VDZ

Partial oxyfuel – Separate calcination of raw meal to concentrate CO2 in the exhaust gas

The capture of CO? and its subsequent use and storage are key elements of the cement industry‘s decarbonisation strategy. The separation of CO? from waste gas is an energy-intensive and complex...

more
Issue 04/2024 VDZ

Shaft kiln for calcining raw meal for clinker production in the cement industry

An efficient technology for concentrating CO2 in the flue gas The pre-heating and calcination of briquetted raw meal (Figure 1) in a shaft kiln that is operated with the oxyfuel technology offer a...

more
Issue 4/2019 US 2019/0039949 A1

Process and device for cement clinker production

(22) 24.09.2018 (43) 07.02.2019 (57) In a process for the production of cement clinker, in which raw meal is preheated in a preheater (3) using the hot exhaust gases from a clinker kiln, and the...

more