THYSSENKRUPP POLYSIUS | SCHWENK

Schwenk Zement commissions thyssenkrupp Polysius to build a demonstration plant for the production of activated clay without calcination

Schwenk Zement GmbH & Co. KG has commissioned thyssenkrupp Polysius to build a demonstration plant for the production of activated clay without calcination. After the planned commissioning in 2025, the CO2 emissions resulting from the production of cement containing clay will be significantly reduced. The new plant is based on an all-electric clay activation process jointly developed by thyssenkrupp Polysius and Schwenk Zement without calcination and without fuels.

Luc Rudowski, Head of Innovation at thyssenkrupp Polysius: “The composite cement to be produced with the newly developed meca-clay only emits around 350 kg of CO2 per t of cement. Compared to average conventional cement production, the CO2 footprint can be reduced by around 42%.”

For years, cement manufacturers have been trying to reduce the so-called clinker factor – the proportion of clinker in cement – by adding Supplementary Cementitious Materials. Based on the joint research results in the production of activated clays and the excellent performance achieved in both cement mortar and concrete formulations, Schwenk Zement and thyssenkrupp Polysius are convinced of the superiority of the new process over conventional clay calcination process. A further advantage: in contrast to the conventional combustion process for clay calcination, the new process does not require any fossil fuels to activate the clay and therefore causes no emissions of air pollutants.

www.thyssenkrupp-polysius.com | www.schwenk.de

x

Related articles:

Issue 5-6/2020 THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

Low-CO2 cement production with activated clay: thyssenkrupp to build first industrial-scale plant in Cameroon

thyssenkrupp is to fit the first cement plant with a system for the production of calcined clay for the Dutch-based company Cimpor Global Holdings. The technology developed by thyssenkrupp lowers CO2...

more
Issue 1/2024 THYSSENKRUPP POLYSIUS

Breakthrough technology for further CO2 reduction

thyssenkrupp Polysius and Schwenk Zement have jointly developed a new process and technology that enable the activation of any type of clay without thermal energy and fossil fuels. The two companies...

more
Issue 4/2021 THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

polysius® pure oxyfuel – investigating the industrial-scale use of carbon capture technology in cement production

The production of cement releases large quantities of carbon dioxide (CO2). Only a third of these CO2 emissions result from the combustion of fossil fuels such as coal or petroleum coke, while the...

more
Issue 8/2023 THYSSENKRUPP POLYSIUS GMBH

thyssenkrupp Polysius builds flash activator for Cimpor Ltd. in Ghana

Cimpor Ghana Ltd. commissions thyssenkrupp Polysius GmbH with the construction of a flash activator for clay activation in Tema/Ghana. The plant will have the world’s largest new built flash...

more
Issue 5-6/2020 THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

Introducing activated clays on an industrial scale

On the way to the polysius green cement plant polysius activated clay is part of a broad-based initiative. The cement plant manufacturer thyssenkrupp is in the process of developing a fully green and...

more