Sinoma International mentioned in public exchanges that the proportion of alternative fuels used in Europe has reached more than 50%, and the company's alternative fuel rate in Poland projects has even reached more than 90%.
In China, the overall heat substitution rate (TSR) of the industry is still hovering at a low level-about 5% to 8% under different statistical calibers, and less than 3% as a whole. Except for individual head enterprises, the substitution rate of most cement plants is very low, and the single-digit proportion is not uncommon. The timetable given by the
policy is not generous. The Special Action Plan for Energy Conservation and Carbon Reduction in Cement Industry, issued by the
State Development and Reform Commission, the Ministry of Industry and Information Technology and the State Energy Administration, clearly States that by the end of 2025, the proportion of cement kilns using alternative fuel technology production lines will reach 30%, and the proportion of alternative fuel consumption in cement industry will strive to reach 10%. It also clearly supports the high calorific value, low cost and standardized pretreatment of alternative fuels. In April 2026, the General Office of the Central Committee of the Communist Party of China and the General Office of the State Council issued the Opinions on Energy Conservation and Carbon Reduction with Higher Level and Quality, which listed building materials as the key areas of energy conservation and carbon reduction in industry, and called for optimizing the combustion system of kilns and expanding the proportion of low-carbon fuels such as biomass. In March
2025, the cement industry was formally incorporated into the national carbon emission trading market-the Ministry of Ecology and Environment listed "tackling key problems and reserving high proportion of alternative fuels and raw materials" as one of the key tasks of the cement industry from now to 2027.
Policy, carbon market, demonstration line, three forces at the same time to promote the use of alternative fuels, but the current application of the cement industry is not ideal, and the reason for the delay in popularization, the crux is hidden in the details. How to choose
alternative fuels? Refuse derived fuel (RDF/SRF) has high calorific value, less harmful elements, and little impact on kiln conditions and clinker quality; biomass fuel is restricted by seasonal supply and storage and transportation costs; waste tires have high calorific value and stable combustion, which are widely used in Europe and the United States, and the domestic utilization rate is still gradually increasing. Different categories of calorific value range, moisture, ash, chlorine and sulfur content are different, choose the wrong category, the kiln often has to pay more than coal saved. How to stabilize the
kiln condition? The composition of alternative fuels is complex, and the fluctuation of calorific value, moisture and ash content is large, which easily leads to unstable combustion in the kiln, ring formation and skinning, and fluctuation of clinker quality. Once the substitution rate exceeds 30%, the technical risk increases significantly. Will
pollutant emissions rebound? This is one of the easiest points to question in the promotion of alternative fuels. How to control the emission of harmful substances such as chlorine, sulfur and heavy metals into the kiln, how to evaluate the impact of the change of flue gas composition at the kiln end on the denitrification system, dust removal system and clinker product quality, and how to calculate the investment in environmental protection transformation, all need to be based on measured data rather than promises. How to balance
fuel cost and substitution rate? The economics of alternative fuels are influenced by many factors: the price ratio of the fuel itself, the benefits of saving or subsidizing the cost of solid waste disposal, the potential value of carbon assets, and the loss of impact on production. How to balance costs is also crucial.
From December 3 to 4, China Cement Network will hold the 16th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and the 1st Solid Waste Comprehensive Utilization and Fluidized Solidified Soil Development Conference in Wuhan, Hubei Province. The conference will invite relevant experts to conduct in-depth exchanges on alternative fuel selection, how to stabilize kiln conditions, how to avoid increasing pollutant emissions, how to balance fuel costs and how to improve fuel substitution rate.
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