Fusion and transformation properties of the inorganic components in biomass ash

被引：138
作者：
Du, Shenglei [1 ]
Yang, Haiping [1 ]
Qian, Kezhen [1 ]
Wang, Xianhua [1 ]
Chen, Hanping [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Hubei Province, Peoples R China
来源：
FUEL | 2014年 / 117卷
基金：
中国国家自然科学基金;
关键词：
Biomass ash; Transformation properties; Fusion characteristic; Phase diagrams; THERMODYNAMIC PROPERTIES; ENERGY-PRODUCTION; MELTING BEHAVIOR; GAS-PHASE; COMBUSTION; STRAW; SYSTEM; ALKALI; GASIFICATION; TEMPERATURES;
D O I：
10.1016/j.fuel.2013.07.085
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In thermochemical utilization of biomass, ash fusion temperature is an important parameter for the efficient and continuous operation of boilers/gasifiers and high value-added utilization of the ash. Fusion characteristics and transformation properties of the inorganic components in biomass ash are investigated using X-ray fluorescence (XRF), thermal gravimetric analyzer (TGA), X-ray diffraction (XRD), ash melting point test system and phase diagrams. XRF and TGA results show the changes of ash content, elemental composition and performance with the variation of temperature. Two main weight loss routes of biomass ash, decomposition and volatilization, are identified. XRD results show the transformation behavior of crystalline structure of different biomass ash. Intense internal reactions that occur in biomass ash at higher temperature generate a large amount of eutectic compounds, which lowered the melting point significantly. The contribution of different ash compositions to fusion can be assessed by binary diagrams while the fusion properties of silica-rich biomass ashes obtained by phase diagrams could be appropriate for industrial running. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1281 / 1287
页数：7
相关论文
共 32 条
  • [1] Studying the melting behavior of coal, biomass, and coal/biomass ash using viscosity and heated stage XRD data
    Arvelakis, S.
    Folkedahl, B.
    Dam-Johansen, K.
    Hurley, J.
    [J]. ENERGY & FUELS, 2006, 20 (03) : 1329 - 1340
  • [2] Simultaneous thermal analysis (STA) on ash from high-alkali biomass
    Arvelakis, S
    Jensen, PA
    Dam-Johansen, M
    [J]. ENERGY & FUELS, 2004, 18 (04) : 1066 - 1076
  • [3] The behavior of inorganic material in biomass-fired power boilers: field and laboratory experiences
    Baxter, LL
    Miles, TR
    Miles, TR
    Jenkins, BM
    Milne, T
    Dayton, D
    Bryers, RW
    Oden, LL
    [J]. FUEL PROCESSING TECHNOLOGY, 1998, 54 (1-3) : 47 - 78
  • [4] Fireside slagging, fouling, and high-temperature corrosion of heat-transfer surface due to impurities in steam-raising fuels
    Bryers, RW
    [J]. PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 1996, 22 (01) : 29 - 120
  • [5] Reactivity of ashes from biomass combustion plant in biomass combusting atmospheres
    Cha, S. C.
    [J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2007, 58 (02): : 103 - 108
  • [6] BIOMASS ENERGY - A WAY TOWARDS A SUSTAINABLE FUTURE
    Cornea, Teodora Manuela
    Dima, Mihai
    [J]. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, 2010, 9 (10): : 1341 - 1345
  • [7] A generalized multicomponent excess function with application to immiscible liquids in the system CaO-SiO2-TiO2
    DeCapitani, C
    Kirschen, M
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1998, 62 (23-24) : 3753 - 3763
  • [8] Optimization of thermodynamic properties of the K2O-SiO2 system at high temperatures
    Forsberg, S
    [J]. JOURNAL OF PHASE EQUILIBRIA, 2002, 23 (03): : 211 - 217
  • [9] Quantification of fusion in ashes from solid fuel combustion
    Hansen, LA
    Frandsen, FJ
    Dam-Johansen, K
    Sorensen, HS
    [J]. THERMOCHIMICA ACTA, 1999, 326 (1-2) : 105 - 117
  • [10] CORRELATION BETWEEN ASH-FUSION TEMPERATURES AND TERNARY EQUILIBRIUM PHASE-DIAGRAMS
    HUGGINS, FE
    KOSMACK, DA
    HUFFMAN, GP
    [J]. FUEL, 1981, 60 (07) : 577 - 584
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