Western Cement is committed to achieving the highest standards in the industry in terms of environmental protection and emission control. All production facilities of Western Cement in the PRC and overseas are modern plants with new suspension preheater technology. These plants are located close to their respective limestone quarries. Where necessary, Western Cement has installed limestone conveyor belts to minimize emissions during transportation. In addition, Western Cement uses desulfurized gypsum and construction waste as raw materials in its cement products. Fly ash from power plants and slag from iron and steel plants are also recovered as materials for some of the cement products of Western Cement.
Western Cement has installed waste heat recovery systems in 13 of its 17 production lines in China. The system can reduce electricity consumption by about 30% for each production line and reduce carbon dioxide emissions by about 22000 tons per million tons of cement production. In 2024, these systems generated a total of 341 million kWh of electricity, saving coal consumption of approximately 136,300 tons and reducing carbon dioxide emissions of approximately 339,800 tons. Western
Cement has installed self-developed cement kiln flue gas denitration equipment in all cement plants in the PRC, which has reduced nitrogen oxide emissions per ton of clinker produced by Western Cement by approximately 60%. In addition, Western Cement has completed further denitrification improvements at several plants, including the installation of denitrification spray guns and the implementation of suspended particulate emission reduction measures such as kiln inlet dust collectors and other related improvements. The denitrification technology has not been installed in the African plant of West Cement as it requires the use of hazardous amino as a reagent and the African plant is subject to the supply chain restrictions on the cross-border transportation of the relevant reagents. However, all plants in Africa are equipped with dust removal systems, whose performance is significantly better than local suspended particulate emission standards, and all adopt the latest modern technology, most of which have been built in recent years, reaching the best emission level in sub-Saharan Africa.
The above measures have brought about significant emission reduction results. Since 2021, the total emission of nitrogen oxides in western cement has been reduced from nearly 7000 tons to 4000 tons, the emission of sulfur dioxide from 600 tons to less than 300 tons, and the emission of suspended particles from 600 tons to nearly 200 tons. Since 2022, the energy consumption per ton of clinker has been reduced from 916 kWh to 853 kWh, while the energy consumption per unit of business income has been reduced from 1.53 kWh/RMB to 129 kWh/RMB.
In addition, Western Cement has municipal waste treatment facilities at its Fuping plant for the treatment of hazardous and hazardous waste, and solid waste treatment facilities at its Moyu plant. Western Cement is continuing to explore new opportunities to build solid waste treatment facilities in other clinker kilns in Shaanxi Province.
Western Cement continuously monitors and improves its environmental and emission standards in the following ways. Firstly , the Checklist of Environmental Protection Regulations and Standards was implemented to monitor emissions in depth and train group employees. Secondly , the Ministry of Safety and Environment inspects the monitoring reports and environmental management measures of each factory quarterly. Thirdly , the disposal and storage of hazardous waste is carefully planned every year, and the waste is labeled and disposed of according to the new emission standards promulgated by the Ministry of Ecology and Environment. All of
Western Cement's plants in China have been transformed into "garden plants" and similar strategies have been implemented in Africa to improve local environmental management. At the same time, land reclamation and mine greening are carried out in the limestone mining area, and monitoring of geomorphological landscape, slope deformation, water and soil pollution, soil quality and land reclamation is carried out every year to ensure the restoration and land reclamation.
At present, the cement industry is facing the double test of energy saving, environmental protection and industrial intelligence upgrading. In order to implement the relevant policy requirements and accelerate the green low-carbon transformation and high-quality development of the cement industry, China Cement Network is scheduled for September 23-24. The 14th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and the 6th Intelligent Summit Forum were held in Zibo, Shandong Province. This conference will bring together industry experts, enterprise representatives and many industry stakeholders to gather group wisdom and promote energy-saving, environmental protection and intelligent transformation and upgrading of the cement industry.
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