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News flash calciner

Displaying items by tag: flash calciner

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Cimpor launches new plant in Cameroon

22 July 2024

Cameroon: Cimpor has inaugurated its new plant in Kribi, Cameroon. Following investments in Côte d'Ivoire, Cimpor embarked on this greenfield project in February 2020, integrating the ‘world's first’ operational flash calcined clay production line, launched on 29 October 2023.

Cimpor Cameroun now has an output of 1.2Mt/yr of cement and 0.4Mt/yr of calcined clay. Cimpor's calcined clay production technology - ‘deOHclay’ – reportedly saves up to 80% in CO2 emissions, up to 35% in electricity consumption and up to 40% in thermal energy consumption per tonne. Compared to a plant with a similar capacity, this technology could reduce CO2 emissions by around 0.2Mt/yr, according to the company. The new plant will reduce the country’s dependence on imports to meet local cement needs.

Published in Global Cement News
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Rohrdorfer appoints Fives FCB to supply clay calcination unit for Rohrdorf cement plant

11 June 2024

Germany: France-based Fives has won a contract to build a 50t/day clay calcination unit at Rohrdorfer’s Rohrdorf cement plant in Bavaria. The unit will integrate into the plant’s clinker line in order to allow it to test the production of limestone calcined clay cement with up to 40% reduced CO2 emissions. Fives’ clay calcination unit uses a flash calcination process, based on a three-stage preheater, flash calciner and decolourisation system.

Rohrdorfer’s Net Zero Emissions Labs team is responsible for the project to decarbonise the Rohrdorf cement plant by 2038. Its managing director Helmut Leibinger said “After a detailed technical review, we decided that the flash calciner with an integrated clay calcination unit from Fives FCB was the best solution in terms of reliability, efficiency and colour control. We are confident that the unit will be essential in moving forward on our pathway to net zero.”

Published in Global Cement News
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ThyssenKrupp Polysius wins CIMPOR flash activator contract

13 October 2023

Ghana: CIMPOR has appointed Germany-based ThyssenKrupp Polysius to build a 1280t/day flash activator for clay. The activator will supply calcined clay for use in the production of cement with a clinker factor as low as 50%. This can reduce the cement’s CO2 emissions by 40% compared with ordinary Portland cement (OPC). The supplier’s contract covers engineering, supply of core equipment and supervision of the project. The equipment includes parts for clay handling, a hammer mill, a flash dryer and preheating and cooling equipment, as well as storage silos. The activator will be natural gas-fired.

Polysius Activated Clay product owner Leo Fit said "Our technology is not only more environmentally friendly, but also creates cost benefits for our customers like CIMPOR. In many regions, limestone is scarce and clinker has to be imported at high cost. At the same time, suitable clay sources are available. The increasing pressure to reduce greenhouse gas emissions is leading cement manufacturers to rethink. They need an alternative that is cost-efficient and at the same time provides high-quality cement. This is exactly what Polysius activated clay offers."

Published in Global Cement News
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RHI Magnesita and Calix Limited start agreement on CO2 emissions reduction for refractory production

05 July 2021

Austria/Australia: Refractory producer RHI Magnesita and Calix say they have started a memorandum of understanding to develop a flash calciner for use in the production of refractory materials, to enable CO2 separation for either utilisation or storage. The companies have agreed to run studies up to and including basic front-end engineering and design for a commercial-scale demonstration facility at an RHI Magnesita site.

RHI Magnesita and Calix started discussing a collaboration in early 2019. The application of Calix's technology to refractory products has been the subject of pilot scale test work during 2020, with larger scale test work currently underway.

Luis Bittencourt, chief technology officer of RHI Magnesita said, "We are pleased to be working with Calix on this project, which is a key part of the research and development programme on CO2 emissions reduction that we are carrying out over the next five years. Together with our partners at Calix, we are seeking to develop new technologies for the capture, storage and utilisation of CO2 that would otherwise be emitted during the refractory production process." Phil Hodgson, the managing director of Calix added that the company was also looking at strategic opportunities in its magnesium oxide businesses.

Published in Global Cement News
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