ARTICLE

Research on cement clinker calcination in CO2/O2 atmosphere

Oxyfuel CO2 capture technology is one of the key approaches to addressing CO2 emissions in cement production, offering advantages such as low capture cost and high efficiency, which highlight its strong application potential. However, research on the effect of oxy-fuel combustion technology on cement clinker calcination is insufficient. In this paper, the effects of kiln atmosphere, heating rate, and sintering temperature on the phase composition, microstructure, and resultant properties of cement clinker were analyzed through strength testing, petrographic analysis, f-CaO testing, and X-ray diffraction analysis. The results show that with the increase in the CO2/O2 ratio, the C3S content and strengths at 3-day and 28-day first increase and then decrease. With the increase in lime saturation factor (KH), the content of C3S increases and the content of C2S decreases, but excessive KH can lead to incomplete development of alite (A ores) and significant defects. At too low calcination temperatures, the f-CaO content is high, the C3S content is low, and A ores are scarce, while at too high temperatures, A ores are underdeveloped. Under CO2/O2 atmosphere, the optimal calcination conditions are: the volume ratio of CO2 to O2 ranges from 0.59:0.41 to 0.69:0.31, KH = 0.90, temperature is 1450°C. This study provides a theoretical basis for achieving low-carbon production in the cement industry.

1 Introduction

CO2 is one of the main greenhouse gases, and large amounts of CO2 emissions will lead to global warming, glacier melting, sea level rise and other problems [1, 2]. Countries and regions around the world have successively introduced low-carbon production policies. During

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Hu Yang1,*, Feng He2, Junlin Xie2,*, Shuxia Mei1, Quanliang Li1, Yumei Li1
1School of Materials Science and Engineering, Wuhan University of Technology, China
2School of Materials Science and Engineering, Beijing University of Technology, China
*Corresponding Author: Hu Yang. Email: 15071286978@163.com

REFERENCES

1. Liu J, Liu J, Cheng L, Jin H, Xing F. Sustainable upcycling of artificial lightweight cold-bonded aggregates (ALCBAs) designed by biochar and concrete slurry waste (CSW) into porous carbons materials for CO₂ sequestration. Constr Build Mater. 2024;412(1):134736. doi:10.1016/j.conbuildmat.2023.134736.

2. Jin Y, Yang L, Lee J. Spatiotemporal dynamics of agricultural development and CO₂ emissions in China. Clean Circ Bioecon. 2025;12(7):100167. doi:10.1016/j.clcb.2025.100167.

3. Weng Y, Cai W, Wang C. Evaluating the use of BECCS and afforestation under China’s carbon-neutral target for 2060. Appl Energy. 2021;299:117263. doi:10.1016/j.apenergy.2021.117263.

4. Khalil E, AbouZeid M. A global assessment tool for cement plants improvement measures for the reduction of CO₂ emissions. Results Eng. 2025;26(1):104767. doi:10.1016/j.rineng.2025.104767.

5. Supriya, Chaudhury R, Sharma U, Thapliyal PC, Singh LP. Low-CO₂ emission strategies to achieve net zero target in cement sector. J Clean Prod. 2023;417(14):137466. doi:10.1016/j.jclepro.2023.137466.

6. Yan Z, Sun Z, Ma J, Pan J, Lv J, Song B, et al. Effect of copper slag fineness on rheological behavior, mechanical performance and CO₂ emission in cement-based cementitious materials. Constr Build Mater. 2025;492(4):142937. doi:10.1016/j.conbuildmat.2025.142937.

7. Zhao Q, Huang L, Zong W, Zhang Y. Life cycle assessment of cement industry with CO₂ capture and purification: environmental feasibility and synergistic emission reduction. Int J Life Cycle Assess. 2025;30(7):1526–44. doi:10.1007/s11367-025-02501-3.

8. Zong Z, Daoud O, Hankins NP, She Q, Peters CD. Valorising desalination brine for green cement production: toward mitigating global CO₂ emissions. Water Res. 2025;284:123930. doi:10.1016/j.watres.2025.123930; 40494198

9. IEA. Global energy review: CO₂ emissions in 2021-analysis. 2021 [cited 2026 Jan 1]. Available from: https://www.iea.org/reports/global-energy-review-co₂-emissions-in-2021.

10. Tan C, Yu X, Guan Y. A technology-driven pathway to net-zero carbon emissions for China’s cement industry. Appl Energy. 2022;325(1):119804. doi:10.1016/j.apenergy.2022.119804.

11. Biernacki M, Poluszyrnka J, Wieczorek PP. A review of the methods used in determining the share of biogenic carbon in solid alternative fuels used to calculate biogenic CO₂ emission factors. Przem Chem. 2025;104(8):804–13.

12. Olszewski W, Dzida M, Nguyen VG, Cao DN. Reduction of CO₂ emissions from offshore combined cycle diesel engine-steam turbine power plant powered by alternative fuels. Pol Marit Res. 2023;30(3):71–80. doi:10.2478/pomr-2023-0040.

13. Delihowski J, Izak P. Rheological characterisation of clay-cement sealing suspensions with fractionated coal fly ashes. Sci Rep. 2026;16(1):2856. doi:10.1038/s41598-025-30793-w; 41571706

14. Huang Y, Zhang Y, Ren X, Diao H, Ma T. Alkali-activated materials based on lithium slag and ground blast furnace slag: mechanical properties and microstructure. Constr Build Mater. 2026;511(3):145319. doi:10.1016/j.conbuildmat.2026.145319.

15. Wolde I, Famiglietti A, Abbas R, Cardemil JM. An innovative strategy for improvement of energy efficiency in cement production by means of stratified thermal energy storage integration. Energy Convers Manag. 2025;338(3):119825. doi:10.1016/j.enconman.2025.119825.

16. Meijssen M, Becattini V, Mazzotti M. Integrated carbon capture and utilization in the cement industry: a comparative study. ACS Sustainable Chem Eng. 2024;12(7):2709–18. doi:10.1021/acssuschemeng.3c07081.

17. Benhelal E, Shamsaei E, Rashid MI. Challenges against CO₂ abatement strategies in cement industry: a review. J Environ Sci. 2021;104(5):84–101. doi:10.1016/j.jes.2020.11.020; 33985750

18. Guo Y, Luo L, Liu T, Hao L, Li Y, Liu P, et al. A review of low-carbon technologies and projects for the global cement industry. J Environ Sci. 2024;136:682–97. doi:10.1016/j.jes.2023.01.021; 37923477

19. Magli F, Spinelli M, Fantini M, Romano MC, Gatti M. Techno-economic optimization and off-design analysis of CO₂ purification units for cement plants with oxyfuel-based CO₂ capture. Int J Greenh Gas Control. 2022;115:103591. doi:10.1016/j.ijggc.2022.103591.

20. Hughes R, Kotamreddy G, Bhattacharyya D, Omell B, Matuszewski M. Modeling and Bayesian uncertainty quantification of a membrane-assisted chilled ammonia process for CO₂ capture. Ind Eng Chem Res. 2022;61(11):4001–16. doi:10.1021/acs.iecr.1c04601.

21. Chehrazi M, Moghadas BK. A review on CO₂ capture with chilled ammonia and CO₂ utilization in urea plant. J CO2 Util. 2022;61(4):102030. doi:10.1016/j.jcou.2022.102030.

22. Lv Y, Zhou H, Wang J, Wang L, Bi J, Zhao W, et al. Techno-economic and environmental feasibility analysis of a solar-assisted membrane gas absorption system for CO₂ capture from power plant flue gas with flexible operation. Appl Therm Eng. 2026;288:129637. doi:10.1016/j.applthermaleng.2025.129637.

23. Wu H, Luo C, Luo T, Zhang L, Zhang X, Wu F. Review of solar thermochemical heat storage equipment and systems based on calcium-looping. J Energy Storage. 2024;103:114146. doi:10.1016/j.est.2024.114146.

24. Almazán H, Fernández J, Blanco ST. Viability of the cocapture of CO₂ and impurities from oxy-fuel combustion and other processes in carbon capture and storage technology. Energy Fuels. 2025;39(23):11173–86. doi:10.1021/acs.energyfuels.4c04818; 40529792

25. Huang X, Yang Z, Ning K, Ruan C, Chen C, Xiao Y, et al. Numerical investigation of combustion characteristics under oxygen-enriched combustion combined with flue gas recirculation in a cement rotary kiln. Appl Therm Eng. 2023;233:121106. doi:10.1016/j.applthermaleng.2023.121106.

26. Shi P, Yang W, Wu P, Zhou J, Liu J. Numerical study on combustion performance of propane non-premixed mild in O₂/CO₂ atmosphere. Energy Sources Part A Recovery Util Environ Eff. 2025;47(2):2041769. doi:10.1080/15567036.2022.2041769.

27. Kroumian C, Maier J, Scheffknecht G. Experimental evaluation of rich oxyfuel combustion characteristics in varying over-stoichiometric conditions. Fuel. 2024;365(3):131241. doi:10.1016/j.fuel.2024.131241.

28. Li S, Wang J. Numerical simulation of oxygen-enriched combustion of low-quality coal in cement rotary kiln. J Phys Conf Ser. 2019;1300(1):012108. doi:10.1088/1742-6596/1300/1/012108.

29. Gu MY, Yuan JY, Wang MM, Wang JM, Huang XY, Chu HQ. Effects of flue gas recirculation on nitrogen oxide formation in 1000 MW S-CO₂ coal-fired boiler with partial expansion furnace. Int J Chem React Eng. 2022;20(9):929–45. doi:10.1515/ijcre-2021-0215.

30. Deng L, Dong L, Bai Y, Wu Y, Liu H, Belošević S, et al. Effects of flue gas recirculation on combustion and heat flux distribution in 660 MW double-reheat tower-type boiler. Fuel. 2022;321(1):123988. doi:10.1016/j.fuel.2022.123988.

31. Carrasco-Maldonado F, Bakken J, Ditaranto M, Haugen NEL, Langørgen Ø, Grathwohl S, et al. Oxy-fuel burner investigations for CO₂ capture in cement plants. Energy Proc. 2017;120:120–5. doi:10.1016/j.egypro.2017.07.160.

32. Carrasco F, Grathwohl S, Maier J, Ruppert J, Scheffknecht G. Experimental investigations of oxyfuel burner for cement production application. Fuel. 2019;236:608–14. doi:10.1016/j.fuel.2018.08.135.

33. Wang Y, Liu Y, Ma ZM. The scale-invariant space for attention layer in neural network. Neurocomputing. 2020;392(9):1–10. doi:10.1016/j.neucom.2020.01.090.

34. Carrasco-Maldonado F, Spörl R, Fleiger K, Hoenig V, Maier J, Scheffknecht G. Oxy-fuel combustion technology for cement production–state of the art research and technology development. Int J Greenh Gas Control. 2016;45(1):189–99. doi:10.1016/j.ijggc.2015.12.014.

35. Kocis J, Rößler C, Elhoweris A, Abdalla O, Ludwig HM. The performance of α′-belite calcium sulfoaluminate (C$A) cement preserved under SO₂ atmosphere compared to commercial products. Cem Concr Compos. 2024;148(1):105468. doi:10.1016/j.cemconcomp.2024.105468.

36. Maki I. Morphology of the so-called prismatic phase in Portland cement clinker. Cem Concr Res. 1974;4(1):87–97. doi:10.1016/0008-8846(74)90068-4.

37. Raut AV, Barote VK, Barkule RS, Parlikar RR, Shengule DR. Thermogravimetric analysis, Rietveld refinement, and atomic force micrography of cobalt ferrite nanoparticles exposed to 100 kGy Co60 γ-rays. Mater Today Proc. 2022;67(3):66–71. doi:10.1016/j.matpr.2022.05.207.

38. de Oliveira AM, Oliveira AP, Vieira JD, Junior AN, Cascudo O. Study of the development of hydration of ternary cement pastes using X-ray computed microtomography, XRD-Rietveld method, TG/DTG, DSC, calorimetry and FTIR techniques. J Build Eng. 2023;64(6):105616. doi:10.1016/j.jobe.2022.105616.

39. Bogue RH. Calculation of the compounds in Portland cement. Ind Eng Chem Anal Ed. 1929;1(4):192–7. doi:10.1021/ac50068a006.

40. de Matos PR, Andrade Neto JS, Sakata RD, Kirchheim AP, Rodríguez ED, Campos CEM. Strategies for XRD quantitative phase analysis of ordinary and blended Portland cements. Cem Concr Compos. 2022;131:104571. doi:10.1016/j.cemconcomp.2022.104571.

41. Mumme WG. Crystal structure of tricalcium silicate from a Portland cement clinker and its application to quantitative XRD analysis. Neues Jahrb Mineral. 1995;4:145–60.

42. Shigekazu U, Kazuyori U. Crystal structure of modifications of calcium silicate (Ca₂SiO₄) and their phase transformation. Semento Gijutsu Nenpo. 1978;32:35–8.

43. Mondal P, Jeffery JW. The crystal structure of tricalcium aluminate, Ca₃Al₂O₆. Acta Crystallogr Sect B. 1975;31(3):689–97. doi:10.1107/S0567740875003639.

44. Bertaut EF, Blum P, Sagnières A. Structure du ferrite bicalcique et de la brownmillerite. Acta Cryst. 1959;12(2):149–59. doi:10.1107/s0365110x59000433.

45. Zhao Q, Mo L, Hu L, Xu M. Effect of fluorite tailings on clinker with different chemical modulus: a case study in rotary kiln processing. J Ind Eng Chem. 2025;146:378–90. doi:10.1016/j.jiec.2024.11.022.

46. Li X, Ma W, Li S, Hou S, Chen Y, Wen X, et al. Study on the properties and carbon footprint of low heat cement clinker prepared by recycled concrete powder and calcium carbide slag. Constr Build Mater. 2024;441:137542. doi:10.1016/j.conbuildmat.2024.137542.

47. Li L, Niu K, Ji J, Zhang P, Zhang J. Study on high-temperature activated products and hydration properties of aga soil in Tibet for cement concrete. Materials. 2024;17(21):5364. doi:10.3390/ma17215364; 39517638

48. Fang M, He F, Xie J, Zhang C, Deng Y, Mei S. Research on the effect of CO₂/O₂ atmosphere on calcined cement clinker. ZKG Int. 2023;8(11):48–55. doi:10.1016/j.ceramint.2025.01.217.

49. Ahmed A, Abubakr P, Salih Mohammed A. Efficient models to evaluate the effect of C₃S, C₂S, C₃A, and C₄AF contents on the long-term compressive strength of cement paste. Structures. 2023;47(2):1459–75. doi:10.1016/j.istruc.2022.11.114.

50. Zhao S, Liu Z, Wang F, Hu S. Elucidating factors on the strength of carbonated compacts: insights from the carbonation of γ-C₂S, β-C₂S and C₃S. Cem Concr Compos. 2025;155(11):105806. doi:10.1016/j.cemconcomp.2024.105806.

51. Mahmud N. Optimizing cement strength. ZKG Int. 2021;74(1):52–6.

52. Li H, Xu Z, He L, Mei J, Zhu H, Liang Y, et al. Effect of nano-SiO₂ on the strength and hydration characteristic of low quality fly ash-cement system. ZKG Int. 2023;76(4):40–8. doi:10.2139/ssrn.5073344.

53. Ju J, Cao H, Guo W, Luo N, Zhang Q, Wang Y. Experimental study on calcination of Portland cement clinker using different contents of stainless steel slag. Materials. 2024;17(10):2305. doi:10.3390/ma17102305; 38793372

54. Alfimova N, Levickaya K, Nikulin I, Elistratkin M, Kozhukhova N, Anosov N. Effect of phosphogypsum origin and calcination temperature on characteristics of supersulfated cements. J Compos Sci. 2025;9(4):146. doi:10.3390/jcs9040146.

Cite This Article

APA Style

Yang, H., He, F., Xie, J., Mei, S., Li, Q. et al. (2026). Research on cement clinker calcination in CO₂/O₂ atmosphere. ZKG International, 79(5), 117–128. https://doi.org/10.32604/zkg.2026.077686

Vancouver Style

Yang H, He F, Xie J, Mei S, Li Q, Li Y. Research on cement clinker calcination in CO₂/O₂ atmosphere. ZKG Int.. 2026;79(5):117–128. https://doi.org/10.32604/zkg.2026.077686

IEEE Style

H. Yang, F. He, J. Xie, S. Mei, Q. Li, and Y. Li, “Research on cement clinker calcination in CO₂/O₂ atmosphere,” ZKG Int., vol. 79, no. 5, pp. 117–128, 2026. https://doi.org/10.32604/zkg.2026.077686