Ash Grove Midlothian plant

Global Cement Magazine visited with key Ash Grove manufacturing executives recently to hear about the Midlothian plant’s history and the transformational changes it has undergone in the past few years.

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Overview of the  reception, screening and  weighing system.

Cement production is one of the world’s most fuel-intensive industries. Fossil fuels, mostly coal, have tended to be the industry’s main power source, although increasingly, cement manufacturers are replacing up to 80% of their fossil fuels with more sustainable waste-derived fuels (WDF). Using WDF reduces production costs and improves energy efficiency. Here Matt Drew, Managing Director of Saxlund International, discusses the challenges faced by Hope Construction Materials in the UK and how these were overcome.

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Figure 1: The Aslan  Çimento plant in Kocaeli, 30km from Istanbul, has 1.25Mt/yr of clinker and 2Mt/yr of cement production capacity.

Aslan Çimento has been part of OYAK Group since 2009. OYAK Group, one of Turkey’s major cement producers, has over 17.5Mt/yr of cement production capacity across six geographically well-positioned cement plants. The Aslan Çimento plant in Kocaeli has 1.25Mt/yr of clinker and 2Mt/yr of cement production capacity. Here, Neslihan Akgün and Özlem Başaran, Environment, Health and Safety Manager and Production Engineer, respectively, from Aslan Çimento describe the results of recent environmental upgrades, including the new solid-recovered fuel (SRF) unit and the waste heat recovery (WHR) system.

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Coal

Coal provides around 90% of the energy consumed by cement plants around the world, despite the environmental harm caused by its combustion. It takes 200 - 450kg of coal to produce 1t of cement. The cement industry consumes around 4% of global coal production, around 330Mt/yr. Given the rapidly-expanding infrastructure projects underway around the world, particularly in developing countries where coal is the main fuel, coal consumption for cement is here to stay. Here Global Cement discusses the global coal industry, including trends and regulations and gives a forecast for coal use by the sector in 2050.

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