SANS analysis of the microstructural evolution during the aging of pyrolysis oils from biomass

被引：74
作者：
Fratini, E
Bonini, M
Oasmaa, A
Solantausta, Y
Teixeira, J
Baglioni, P
机构：
[1] Univ Florence, Dept Chem, I-50019 Florence, Italy
[2] Univ Florence, CSGI, I-50019 Florence, Italy
[3] CEA, CNRS, Lab Leon Brillouin, CEN Saclay, F-91191 Gif Sur Yvette, France
来源：
LANGMUIR | 2006年 / 22卷 / 01期
关键词：
D O I：
10.1021/la051990a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this paper, we report for the first time a microstructural characterization of pyrolysis oils obtained from biomass. Bio crude oils (BCOs) are good candidates as substitutes for mineral oils as fuels. By using small-angle neutron scattering (SANS), we show that BCOs are nanostructured fluids constituted by a complex continuous phase and nanoparticles mainly formed by the association of units of pyrolytic lignins. The aggregation of these units during the time produces branched structures with fractal dimension D-f between 1.4 and 1.5, which are responsible for BCO aging. SANS results fully support the recently formulated thermal ejection theory, accounting for the mechanism of formation of the lignin fraction in oils obtained from fast pyrolysis of biomass.
引用
收藏
页码：306 / 312
页数：7
相关论文
共 27 条
  • [1] [Anonymous], 2002, Fast Pyrolysis of Biomass: A Handbook Volume 2
  • [2] BAGLIONI P, 1999, Patent No. WO0102516
  • [3] CHEN SH, 1992, CROAT CHEM ACTA, V65, P353
  • [4] STRUCTURE AND FRACTAL DIMENSION OF PROTEIN-DETERGENT COMPLEXES
    CHEN, SH
    TEIXEIRA, J
    [J]. PHYSICAL REVIEW LETTERS, 1986, 57 (20) : 2583 - 2586
  • [5] SMALL-ANGLE NEUTRON-SCATTERING STUDIES OF THE STRUCTURE AND INTERACTION IN MICELLAR AND MICROEMULSION SYSTEMS
    CHEN, SH
    [J]. ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1986, 37 : 351 - 399
  • [6] Development of emulsions from biomass pyrolysis liquid and diesel and their use in engines - Part 2: tests in diesel engines
    Chiaramonti, D
    Bonini, A
    Fratini, E
    Tondi, G
    Gartner, K
    Bridgwater, AV
    Grimm, HP
    Soldaini, I
    Webster, A
    Baglioni, P
    [J]. BIOMASS & BIOENERGY, 2003, 25 (01) : 101 - 111
  • [7] Development of emulsions from biomass pyrolysis liquid and diesel and their use in engines - Part 1: emulsion production
    Chiaramonti, D
    Bonini, A
    Fratini, E
    Tondi, G
    Gartner, K
    Bridgwater, AV
    Grimm, HP
    Soldaini, I
    Webster, A
    Baglioni, P
    [J]. BIOMASS & BIOENERGY, 2003, 25 (01) : 85 - 99
  • [8] STABILITY OF WOOD FAST PYROLYSIS OIL
    CZERNIK, S
    JOHNSON, DK
    BLACK, S
    [J]. BIOMASS & BIOENERGY, 1994, 7 (1-6) : 187 - 192
  • [9] Biomass and wastes: Upgrading alternative fuels
    Demirbas, A
    Demirbas, MF
    [J]. ENERGY SOURCES, 2003, 25 (04): : 317 - 329
  • [10] Feigin L., 1987, STRUCTURE ANAL SMALL
123