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Mechanical Aspects and Applications of Pellets Prepared from Biomass Resources

  • Pietro BartocciEmail author
  • Øyvind Skreiberg
  • Liang Wang
  • Hu Song
  • Hai-Ping Yang
  • Mauro Zampilli
  • Gianni Bidini
  • Francesco Fantozzi
Chapter
Part of the Biofuels and Biorefineries book series (BIOBIO, volume 9)

Abstract

Currently, fossil fuels such as coal, natural gas and oil, represent the main energy sources in the world for providing heat. Environmental damage, due to the use of fossil fuels, such as global warming, acid rain and smog, push the world to reduce carbon emissions and to promote the development of renewable energy resources. On one hand biomass is a valid renewable alternative and a carbon neutral raw material for the production of clean energy, especially heat; on the other hand biomass, used as-is, is a leading cause of early deaths in developing countries. Pelletization, which can be coupled also to thermal treatment (e.g. carbonization) of biomass, increase its energy content (per unit of weight) and leads to clean burning. The pellet fuel market is in continuous growth, so that different materials have to be used to satisfy the demand (such as: herbaceous crops, straw, olive husk etc.). The technical parameters used for pelletization appear fundamental to adapt the process to the different characteristics of the raw material. This chapter deals with the pelletization process through the analysis of raw materials, binders, and pre-treatment processes. Pelletization process parameters are also considered together with the basics of pelletization modeling both for flat die machines and ring die machines. A model is applied to the pelletization of biochar, that allows the comparison with spruce fir wood.

Keywords

Pellet Biomass Fuel Pressure Friction Strength 

Notes

Acknowledgments

The authors would like to thank eng. Michele Oligarchi and eng. Micro Cesca for the help during pelletizing tests and simulation running. The authors acknowledge the financial support by the Research Council of Norway and a number of industrial partners through the project BioCarb+ (“Enabling the biocarbon value chain for energy”). The authors would like to acknowledge the help of dr. Tomasz Dzik and prof. Marek Hryniewicz from AGH University of Science and Technology, Cracow, Poland. The authors would like to acknowledge the help of dr. Yu Sun from Nanjing University of Science and Technology, China. The authors would like to acknowledge the help of professor Mathias Mandø from Department of energy Aalborg University, Denmark and dr. Andreas Brinch Rosenørn and dr. Simon Klinge Nielsen from Andritz Feed and Biofuel. The authors would like to acknowledge the help of eng. Lorenzo Riva from University of Agder, Norway. The authors want also to acknowledge the help of reviewers.

References

  1. 1.
    Saidur R, Abdelaziz EA, Demirbas A, Hossain MS, Mekhilef S (2011) A review on biomass as a fuel for boilers. Renew Sust Energ Rev 15(5):2262–2289CrossRefGoogle Scholar
  2. 2.
    Kambo HS, Dutta A (2015) Comparative evaluation of torrefaction and hydrothermal carbonization of lignocellulosic biomass for the production of solid biofuel. Energy Convers Manag 105:746–755CrossRefGoogle Scholar
  3. 3.
    Nunes LJR, Matias JCO, Catalão JPS (2014) A review on torrefied biomass pellets as a sustainable alternative to coal in power generation. Renew Sust Energ Rev 40:153–160CrossRefGoogle Scholar
  4. 4.
    Tarasov D, Shahi C, Leitch M (2013) Effect of additives on wood pellet physical and thermal characteristics: a review. ISRN For 2013:1–6Google Scholar
  5. 5.
    Tumuluru J, Wright C, Kenny K, Hess R, (2010) A review on biomass densification technologies for energy application. 1–59Google Scholar
  6. 6.
    Kaliyan N, Morey RV (2009) Factors affecting strength and durability of densified biomass products. Biomass Bioenergy 33(3):337–359CrossRefGoogle Scholar
  7. 7.
    Whittaker C, Shield I (2017) Factors affecting wood, energy grass and straw pellet durability – a review. Renew Sust Energ Rev 71:1–11CrossRefGoogle Scholar
  8. 8.
    Mola-Yudego B, Selkimäki M, González-Olabarria JR (2014) Spatial analysis of the wood pellet production for energy in Europe. Renew Energy 63:76–83CrossRefGoogle Scholar
  9. 9.
  10. 10.
    Castellano JM, Gómez M, Fernández M, Esteban LS, Carrasco JE (2015) Study on the effects of raw materials composition and pelletization conditions on the quality and properties of pellets obtained from different woody and non woody biomasses. Fuel 139:629–636CrossRefGoogle Scholar
  11. 11.
    Sluiter A, Ruiz R, Scarlata C, Sluiter J, Templeton D (2008) Determination of extractives in biomass. Technical Report NREL/TP-510-42619Google Scholar
  12. 12.
    Duca D, Riva G, Foppa Pedretti E, Toscano G (2014) Wood pellet quality with respect to en 14961-2 standard and certifications. Fuel 135:9–14CrossRefGoogle Scholar
  13. 13.
    Huang Y, Finell M, Larsson S, Wang X, Zhang J, Wei R, Liu L (2017) Biofuel pellets made at low moisture content – influence of water in the binding mechanism of densified biomass. Biomass Bioenergy 98:8–14CrossRefGoogle Scholar
  14. 14.
    Obernberger I, Thek G (2010) The pellet handbook: the production and thermal utilisation of biomass pellets. RoutledgeGoogle Scholar
  15. 15.
    Hu Q, Yang H, Yao D, Zhu D, Wang X, Shao J, Chen H (2016) The densification of bio-char: effect of pyrolysis temperature on the qualities of pellets. Bioresour Technol 200:521–527PubMedCrossRefGoogle Scholar
  16. 16.
    Biedermann F, Brunner T, Mandl C, Obernberger I, Kanzian W, Feldmeier S, Schwabl M, Hartmann H, Turowski P, Rist E, Schön C (2014) Production of solid sustainable energy carriers from biomass by means of torrefaction: deliverable no. D7.3 and D7.4 – executive summary. European Commission, Grant no. 282826Google Scholar
  17. 17.
    Cha JS, Park SH, Jung SC, Ryu C, Jeon JK, Shin MC, Park YK (2016) Production and utilization of biochar: a review. J Ind Eng Chem 40:1–15CrossRefGoogle Scholar
  18. 18.
    Faborode MO (1989) Moisture effects in the compaction of fibrous agricultural residues. Biol Wastes 28:61–71CrossRefGoogle Scholar
  19. 19.
    Monedero E, Portero H, Lapuerta M (2015) Pellet blends of poplar and pine sawdust: effects of material composition, additive, moisture content and compression die on pellet quality. Fuel Process Technol 132:15–23CrossRefGoogle Scholar
  20. 20.
    Filbakk T, Jirjis R, Nurmi J, Høibø O (2011) The effect of bark content on quality parameters of Scots pine (Pinus sylvestris L.) pellets. Biomass Bioenergy 35(8):3342–3349CrossRefGoogle Scholar
  21. 21.
    Serrano C, Monedero E, Lapuerta M, Portero H (2011) Effect of moisture content, particle size and pine addition on quality parameters of barley straw pellets. Fuel Process Technol 92(3):699–706CrossRefGoogle Scholar
  22. 22.
    Li Y, Liu H (2000) High pressure densification of wood residues to form an upgraded. Fuel 19:177–186Google Scholar
  23. 23.
    Toscano G, Riva G, Foppa Pedretti E, Corinaldesi F, Mengarelli C, Duca D (2013) Investigation on wood pellet quality and relationship between ash content and the most important chemical elements. Biomass Bioenergy 56(0):317–322CrossRefGoogle Scholar
  24. 24.
    Barbanera M, Lascaro E, Stanzione V, Esposito A, Altieri R, Bufacchi M (2016) Characterization of pellets from mixing olive pomace and olive tree pruning. Renew Energy 88:185–191CrossRefGoogle Scholar
  25. 25.
    Nielsen NPK, Gardner D, Poulsen T, Felby C (2009) Importance of temperature, moisture content, and species for the conversion process of wood residues into fuel pellets. Wood Fiber Sci 41(4):414–425Google Scholar
  26. 26.
    Stelte W, Holm JK, Sanadi AR, Barsberg S, Ahrenfeldt J, Henriksen UB (2011) A study of bonding and failure mechanisms in fuel pellets from different biomass resources. Biomass Bioenergy 35(2):910–918CrossRefGoogle Scholar
  27. 27.
    Carone MT, Pantaleo A, Pellerano A (2011) Influence of process parameters and biomass characteristics on the durability of pellets from the pruning residues of Olea europaea L. Biomass Bioenergy 35(1):402–410CrossRefGoogle Scholar
  28. 28.
    Garcia-Maraver A, Rodriguez ML, Serrano-Bernardo F, Diaz LF, Zamorano M (2015) Factors affecting the quality of pellets made from residual biomass of olive trees. Fuel Process Technol 129:1–7CrossRefGoogle Scholar
  29. 29.
    Arshadi M, Gref R, Geladi P, Dahlqvist SA, Lestander T (2008) The influence of raw material characteristics on the industrial pelletizing process and pellet quality. Fuel Process Technol 89(12):1442–1447CrossRefGoogle Scholar
  30. 30.
    Lestander TA, Finell M, Samuelsson R, Arshadi M, Thyrel M (2012) Industrial scale biofuel pellet production from blends of unbarked softwood and hardwood stems-the effects of raw material composition and moisture content on pellet quality. Fuel Process Technol 95:73–77CrossRefGoogle Scholar
  31. 31.
    Sultana A, Kumar A (2011) Development of energy and emission parameters for densified form of lignocellulosic biomass. Energy 36(5):2716–2732CrossRefGoogle Scholar
  32. 32.
    Mani S, Tabil LG, Sokhansanj S (2004) Grinding performance and physical properties of wheat and barley straws, corn stover and switchgrass. Biomass Bioenergy 27(4):339–352CrossRefGoogle Scholar
  33. 33.
    Moon Jungwoo YHY, Bon-Cheol K, Jong-Woong A, Young-Lok C, Young-Mi Y, Gyeong-Dan Y, Gi Hong A, Kwang-Geun P, In-Hu C (2014) Analysis of factors affecting miscanthus pellet production and pellet quality using response surface methodology. Bioresources 9(2):3334–3346Google Scholar
  34. 34.
    Novaes E, Kirst M, Chiang V, Winter-Sederoff H, Sederoff R (2010) Lignin and biomass: a negative correlation for wood formation and lignin content in trees. Plant Physiol 154:555–561PubMedPubMedCentralCrossRefGoogle Scholar
  35. 35.
    Demirbaş A (2001) Relationships between lignin contents and heating values of biomass. Energy Convers Manag 42(2):183–188CrossRefGoogle Scholar
  36. 36.
    Kuokkanen M, Vilppo T, Kuokkanen T, Stoor T, Niinimäki J (2011) Additives in wood pellet production – a pilot-scale study of binding agent usage. Bioresources 6(4):4331–4355Google Scholar
  37. 37.
    Lerma-Arce V, Oliver-Villanueva JV, Segura-Orenga G (2017) Influence of raw material composition of Mediterranean pinewood on pellet quality. Biomass Bioenergy 99:90–96CrossRefGoogle Scholar
  38. 38.
    Lehtikangas P (2001) Quality properties of pelletised sawdust, logging residues and bark. Biomass Bioenergy 20(5):351–360CrossRefGoogle Scholar
  39. 39.
    Mediavilla I, Esteban LS, Fernández MJ (2012) Optimisation of pelletisation conditions for poplar energy crop. Fuel Process Technol 104:7–15CrossRefGoogle Scholar
  40. 40.
    Kofman PD The prodution of wood pellet, COFORD, Processing/ Products n.10. http://www.coford.ie/media/coford/content/publications/projectreports/cofordconnects/ccnpellet_production.pdf
  41. 41.
    Stáhl M, Berghel J, Frodeson S, Granström K, Reström R (2012) Effects on pellet properties and energy use when starch is added in the wood-fuel pelletizing process. Energy Fuel 26(3):1937–1945CrossRefGoogle Scholar
  42. 42.
    Ahn BJ, Chang HS, Lee SM, Choi DH, Cho ST, Han GS, Yang I (2014) Effect of binders on the durability of wood pellets fabricated from Larix kaemferi C. and Liriodendron tulipifera L. sawdust. Renew Energy 62:18–23CrossRefGoogle Scholar
  43. 43.
    BIOMASA Association (2011) The effect of additives for production costs and parameters of wood pellets. BIOMASA Association, Kysucky Lieskovec, Slovak RepublicGoogle Scholar
  44. 44.
    Lehmann B, Schröder HW, Wollenberg R, Repke JU (2012) Effect of miscanthus addition and different grinding processes on the quality of wood pellets. Biomass Bioenergy 44:150–159CrossRefGoogle Scholar
  45. 45.
    Shang L, Nielsen NPK, Stelte W, Dahl J, Ahrenfeldt J, Holm JK, Puig Arnavat M, Bach LS, Henriksen UB (2014) Lab and bench-scale pelletization of torrefied wood chips—process optimization and pellet quality. Bioenergy Res 7:87–94CrossRefGoogle Scholar
  46. 46.
    Si Y, Hu J, Wang X, Yang H, Chen Y, Shao J, Chen H (2016) Effect of carboxymethyl cellulose binder on the quality of biomass pellets. Energy Fuel 30(7):5799–5808CrossRefGoogle Scholar
  47. 47.
    Chung FH (1991) Unified theory and guidelines on adhesion. J Appl Polym Sci 42(5):1319–1331CrossRefGoogle Scholar
  48. 48.
    Kaliyan N, Morey RV (2010) Natural binders and solid bridge type binding mechanisms in briquettes and pellets made from corn stover and switchgrass. Bioresour Technol 101(3):1082–1090PubMedCrossRefGoogle Scholar
  49. 49.
    Pietsch W (2002) Agglomeration processes – phenomena, technologies, equipment. Wiley-VCH, WeinheimGoogle Scholar
  50. 50.
    Back EL (1987) The bonding mechanism in hardboard manufacture. Holzforschung 41(4):247–258CrossRefGoogle Scholar
  51. 51.
    Stelte W, Clemons C, Holm JK, Sanadi AR, Ahrenfeldt J, Shang L, Henriksen UB (2011) Pelletizing properties of torrefied spruce. Biomass Bioenergy 35(11):4690–4698CrossRefGoogle Scholar
  52. 52.
    Mitchell P, Kiel J, Livingston B, Dupont-Roc G (2007) Torrefied biomass: a foresighting study into the business case of pellets from torrefied biomass as a new solid fuel. Presented at ALL Energy 2007 Conference, Aberdeen Scotland May 24, 2007Google Scholar
  53. 53.
    Gilbert P, Ryu C, Sharifi V, Swithenbank J (2009) Effect of process parameters on pelletisation of herbaceous crops. Fuel 88(8):1491–1497CrossRefGoogle Scholar
  54. 54.
    Uslu A, Faaij APC, Bergman PCA (2008) Pre-treatment technologies, and their effect on international bioenergy supply chain logistics. Techno-economic evaluation of torrefaction, fast pyrolysis and pelletisation. Energy 33(8):1206–1223CrossRefGoogle Scholar
  55. 55.
    Karaosmanoğlu F, Tetik E, Gӧllü E (1999) Biofuel production using slow pyrolysis of the straw and stalk of the rapeseed plant. Fuel Process Technol 59(1):1–12CrossRefGoogle Scholar
  56. 56.
    Nielsen NPK, Gardner DJ, Felby C (2010) Effect of extractives and storage on the pelletizing process of sawdust. Fuel 89(1):94–98CrossRefGoogle Scholar
  57. 57.
    van der Stelt MJC, Gerhauser H, Kiel JHA, Ptasinski KJ (2011) Biomass upgrading by torrefaction for the production of biofuels: a review. Biomass Bioenergy 35(9):3748–3762Google Scholar
  58. 58.
    Mohan D, Pittman CU, Steele PH (2006) Pyrolysis of wood/biomass for bio-oil: a critical review. Energy Fuel 20(3):848–889CrossRefGoogle Scholar
  59. 59.
    Laird DA, Brown RC, Amonette JE, Lehmann J (2009) Review of the pyrolysis platform for coproducing bio-oil and biochar. Biofuels Bioprod Biorefin 3:547–562CrossRefGoogle Scholar
  60. 60.
    Onay O (2007) Influence of pyrolysis temperature and heating rate on the production of bio-oil and char from safflower seed by pyrolysis, using a well-swept fixed-bed reactor. Fuel Process Technol 88(5):523–531CrossRefGoogle Scholar
  61. 61.
    Pimchuai A, Dutta A, Basu P (2010) Torrefaction of agriculture residue to enhance combustible properties. Energy Fuel 24(9):4638–4645CrossRefGoogle Scholar
  62. 62.
    Jaya ST, Shahab S, Richard HJ, Wright Christopher T, Boardman Richard D (2011) Ind Biotechnol 7(5):384–401CrossRefGoogle Scholar
  63. 63.
    Libra JA, Ro KS, Kammann C, Funke A, Berge ND, Neubauer Y, Titirici MM, Fühner C, Bens O, Kern J, Emmerich KH (2011) Hydrothermal carbonization of biomass residuals: a comparative review of the chemistry, processes and applications of wet and dry pyrolysis. Biofuels 2:71–106CrossRefGoogle Scholar
  64. 64.
    Yan W, Hastings JT, Acharjee TC, Coronella CJ, Vásquez VR (2010) Mass and energy balances of wet torrefaction of lignocellulosic biomass. Energy Fuel 24:4738–4742CrossRefGoogle Scholar
  65. 65.
    Yan W, Acharjee TC, Coronella CJ, Vásquez VR (2009) Thermal pretreatment of lignocellulosic biomass. Environ Prog Sustain Energy 28:435–440CrossRefGoogle Scholar
  66. 66.
    Demirbaş A (2005) Estimating of structural composition of wood and non-wood biomass samples. Energy Sources 27:761–767CrossRefGoogle Scholar
  67. 67.
    Acharjee TC, Coronella CJ, Vasquez VR (2011) Effect of thermal pretreatment on equilibrium moisture content of lignocellulosic biomass. Bioresour Technol 102:4849–4854PubMedCrossRefGoogle Scholar
  68. 68.
    Kambo HS, Dutta A (2015) A comparative review of biochar and hydrochar in terms of production, physico-chemical properties and applications. Renew Sust Energ Rev 45:359–378CrossRefGoogle Scholar
  69. 69.
    Hu Q, Shao J, Yang H, Yao D, Wang X, Chen H (2015) Effects of binders on the properties of bio-char pellets. Appl Energy 157:508–516CrossRefGoogle Scholar
  70. 70.
    Peng J, Bi XT, Lim CJ, Peng H, Kim CS, Jia D, Zuo H (2015) Sawdust as an effective binder for making torrefied pellets. Appl Energy 157:491–498CrossRefGoogle Scholar
  71. 71.
    Peng JH, Bi XT, Lim CJ, Sokhansanj S (2013) Study on density, hardness, and moisture up take of torrefied wood pellets. Energy Fuel 27(2):967–974CrossRefGoogle Scholar
  72. 72.
    Chen WH, Peng J, Bi XT (2015) A state-of-the-art review of biomass torrefaction, densification and applications. Renew Sust Energ Rev 44:847–866CrossRefGoogle Scholar
  73. 73.
    Peng JH, Bi XT, Sokhansanj S, Lim CJ (2013) Torrefaction and densification of different species of softwood residues. Fuel 111:411–421CrossRefGoogle Scholar
  74. 74.
    Kambo HS, Dutta A (2014) Strength, storage, and combustion characteristics of densified lignocellulosic biomass produced via torrefaction and hydrothermal carbonization. Appl Energy 135:182–191CrossRefGoogle Scholar
  75. 75.
    Biswas AK, Yang W, Blasiak W (2011) Steam pretreatment of Salix to upgrade biomass fuel for wood pellet production. Fuel Process Technol 92(9):1711–1717CrossRefGoogle Scholar
  76. 76.
    Lam PS, Sokhansanj S, Bi X, Lim CJ, Melin S (2011) Energy input and quality of pellets made from steam-exploded Douglas Fir (Pseudotsuga menziesii). Energy Fuel 25(4):1521–1528CrossRefGoogle Scholar
  77. 77.
    Lam PS (2011) Steam explosion of biomass to produce durable wood pellets, PhD thesis submitted at the University of British Columbia, Vancouver, CanadaGoogle Scholar
  78. 78.
    Tumuluru JS (2014) Effect of process variables on the density and durability of the pellets made from high moisture corn stover. Biosyst Eng 119:44–57CrossRefGoogle Scholar
  79. 79.
    Mani S, Tabil LG, Sokhansanj S (2003) An overview of compaction of biomass grinds. Powder Handl Process 15(3):160–168Google Scholar
  80. 80.
    Stelte W, Holm JK, Sanadi AR, Barsberg S, Ahrenfeldt J, Henriksen UB (2011) Fuel pellets from biomass: the importance of the pelletizing pressure and its dependency on the processing conditions. Fuel 90(11):3285–3290CrossRefGoogle Scholar
  81. 81.
    Nielsen NPK, Holm JK, Felby C (2009) Effect of fiber orientation on compression and frictional properties of sawdust particles in fuel pellet production. Energy Fuel 23:3211–3216CrossRefGoogle Scholar
  82. 82.
    Finell M, Arshadi M, Gref R, Scherzer T, Knolle W, Lestander T (2009) Laboratory-scale production of biofuel pellets from electron beam treated Scots pine (Pinus silvestris L.) sawdust. Radiat Phys Chem 78:281–287CrossRefGoogle Scholar
  83. 83.
    Chow SZ, Pickles KJ (1971) Thermal softening and degradation of wood and bark. Wood Fiber Sci 3:166–178Google Scholar
  84. 84.
    Goring DAI (1971) Thermal softening of lignin, hemicellulose and cellulose. Pulp Paper Mag Can 64:512–527Google Scholar
  85. 85.
    Holm JK, Henriksen UB, Hustad JE, Sørensen LH (2006) Toward an understanding of controlling parameters in softwood and hardwood pellets production. Energy Fuel 20:2686–2694CrossRefGoogle Scholar
  86. 86.
    Holm JK, Henriksen UB, Wand K, Hustad JE, Posselt D (2007) Experimental verification of novel pellet model using a single pelleter unit. Energy Fuel 21:2446–2449CrossRefGoogle Scholar
  87. 87.
    Xia X, Sun Y, Wu K, Jiang Q (2014) Modeling of a straw ring-die briquetting process. BioResources 9(4):6316–6328CrossRefGoogle Scholar
  88. 88.
    Chłopek M, Dzik T, Hryniewicz M (2012) The method for selection of the working system components for a pellet press with flat die. Chemik 66(5):493–500Google Scholar
  89. 89.
    Wu K, Sun Y (2013) Ring-die pellet forming technology and equipment. Science Press, BeijingGoogle Scholar
  90. 90.
    Skalweit H (1938) Krafte und beanspruchungen in strohpressen (Forces and stresses in straw balers). In: Konstruckteurkursus. RKTL-Schriften 88:30–35Google Scholar
  91. 91.
    Faborode MO, O’Callaghan JR (1986) Theoretical analysis of the compression of fibrous agricultural materials. J Agric Eng Res. (1986) 35:175–191CrossRefGoogle Scholar
  92. 92.
    Panelli R, Filho FA (2001) A study of a new phenomenological compacting equation. Powder Technol 114(1):255–261CrossRefGoogle Scholar
  93. 93.
    Hu JJ (2008) Straw pellet fuel cold molding by compression: experimental study and numerical simulation. Ph.D dissertation, Dalian University of Technology, Dalian, ChinaGoogle Scholar
  94. 94.
    Nielsen SK (2016) Numerical modeling of the wood pelleting process. Master thesis, http://projekter.aau.dk/projekter/files/239512717/P10_finalstate.pdf
  95. 95.
    U.S. Department of Agriculture Forest Service (1999) Wood handbook – wood as an engineering material. Forest Products LaboratoryGoogle Scholar
  96. 96.
    De Assis MR (2017) Mechanical and physical properties of eucalyptus charcoal from pyrolisis under different conditions. PhD thesis, Universidade Federal de LavrasGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Pietro Bartocci
    • 1
    Email author
  • Øyvind Skreiberg
    • 2
  • Liang Wang
    • 2
  • Hu Song
    • 3
    • 4
  • Hai-Ping Yang
    • 4
  • Mauro Zampilli
    • 1
  • Gianni Bidini
    • 1
  • Francesco Fantozzi
    • 1
  1. 1.Department of EngineeringUniversity of PerugiaPerugiaItaly
  2. 2.SINTEF Energy ResearchTrondheimNorway
  3. 3.China-EU Institute for Clean and Renewable EnergyHuazhong University of Science and TechnologyWuhanChina
  4. 4.State Key Laboratory of Coal Combustion, School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhanChina

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