In: KIT; Nolting, Ulrich; Dehn, Frank; Denu, Maureen, Hrsg. Klimaeffizientes Bauen – Baustoffe und Bauweisen - 21. Symposium Baustoffe und Bauwerkserhaltung (Karlsruhe 01.04.2025). Karlsruhe, 2025, S.1-14

As plans are progressing for the CCUS infrastructure for transporting, storing and using CO₂, it is becoming increasingly clear that the separated CO₂ must be very pure in order to be used or stored. CC technologies are currently being planned with considerable engineering effort and electricity consumption for gas cleaning systems to separate unwanted accompanying substances. This is where this project comes in. It aims to investigate an innovative concept that could significantly reduce this effort.

Precise material balances and up-to-date transfer factors are essential for evaluating trace element emissions in cement clinker production. Outdated data makes it difficult to use modern, CO₂-neutral raw materials and fuels. The project aims to update the transfer factors to support industry, the environment and climate protection.

In the IGF research project 23643 N, relationships between the particle size distribution of different cement compounds (clinker, calcined clays and limestone powder), and their reactivity and influences on cement performance are being systematically investigated.

With us, you can expand your knowledge around the production of cement and lime, as well as in the area of concrete technology. As a competent partner, we have been offering our customers individual qualification solutions since 2010. In addition to German-language online courses, we also offer English- and Russian-language courses and other services.

In this training you will become familiar with all relevant aspects concerning the use of alternative fuels in cement plants. Starting with the main political drivers such as the circular economy and the European waste fuel strategy, you will get a detailed insight into the current state-of-the-art-situation with regard to the use of alternative fuels in the EU. In this context, pre-treatment and suitable quality control of alternative fuels will be also explained and presented to you. You will focus on all the relevant aspects of the use of alternative fuels in the burning process (e.g. drivers and barriers of their use, available process technology and latest developments) and discuss them in the sessions. You will acquire knowledge about technical feasibility and optimisation potential, and have the possibility to discuss case studies.

VDZ’s online seminar “Strategies for the decarbonisation of the cement industry” aims to train technical staff that will be involved in the development and implementation of decarbonisation strategies in the cement industry in the coming decades. As a participant, you will gain a broader perspective on the challenges, opportunities, uncertainties and technical solutions available to achieve the ambitious goal of net zero CO₂ emissions in the future. Starting with energy efficiency and utilisation of alternative fuels, you will learn about state-of-the-art technologies, technical limitations, identification of improvement potential and industrial case studies. You will also get an insight into the current regulatory framework and how the implementation of CBAM might influence investment strategies in cement plants in Europe and beyond over the next decade. You will look ahead and discuss innovative CO₂ reduction possibilities, such as calcined clays, use of artificial intelligence (AI) and CCUS. Calcined clays will be presented from a technology and materials perspective. You will also learn about different CC technologies and their operating principles, TRL evolution prospects and associated technological risks, selection criteria and critical techno-economic requirements. At the end of the online seminar, you will understand the fundamentals of machine learning and how AI can be used for process parameter prediction in the present, as well as for the development of autonomous systems for process control in carbon capture cement plants in the future.

The 9ᵗʰ International VDZ Congress took place in Düsseldorf on 6 – 8 November 2024. The VDZ Congress is the international scientific forum for the cement industry and its suppliers. Delegates from all over the world discuss the latest developments concerning the transformation of the industry on its way towards climate neutrality.