New insights on the structural evolution of biomass char upon pyrolysis as revealed by the Raman spectroscopy and elemental analysis

被引：227

作者：

Guizani, Chamseddine ^{[1
]}

Haddad, Khouloud ^{[2
]}

Limousy, Lionel ^{[2
]}

Jeguirim, Mejdi ^{[2
]}

机构：

[1] CNRS, LGP2, Grenoble, France

[2] Inst Sci Mat Mulhouse, 15 Rue Jean Starcky, F-68057 Mulhouse, France

来源：

CARBON | 2017年 / 119卷

关键词：

COAL;

D O I：

10.1016/j.carbon.2017.04.078

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of pyrolysis conditions on the structure properties and chemical composition of biomass chars was examined. The Raman spectroscopy ID/IG and IV/ID parameters were found to be correlated for pyrolysis temperatures higher than 600 degrees C. Furthermore, a correlation between IV/ID and the atomic ratio (O+H)/C was identified. These findings would corroborate the assumption that the large carbonaceous structures having defects (D band) would probably form from the condensation of the small amorphous ones (V region). The condensation of these small structures into larger ones would be accompanied by the release of H and O atoms into the gas phase. (C) 2017 Elsevier Ltd. All rights reserved.

引用

收藏

页码：519 / 521

页数：3

相关论文

共 10 条

[1] Evaluation of structural features of chars from pyrolysis of biomass of different particle sizes [J].

Asadullah, Mohammad ;

Zhang, Shu ;

Li, Chun-Zhu .

FUEL PROCESSING TECHNOLOGY, 2010, 91 (08) :877-881

[2] Influence of H2O, CO2 and O2 addition on biomass gasification in entrained flow reactor conditions: Experiments and modelling [J].

Billaud, Joseph ;

Valin, Sylvie ;

Peyrot, Marine ;

Salvador, Sylvain .

FUEL, 2016, 166 :166-178

[3] Characterization of Miscanthus pyrolysis by DRIFTs, UV Raman spectroscopy and mass spectrometry [J].

Elmay, Y. ;

Le Brech, Y. ;

Delmotte, L. ;

Dufour, A. ;

Brosse, N. ;

Gadiou, R. .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2015, 113 :402-411

[4] The effects of textural modifications on beech wood-char gasification rate under alternate atmospheres of CO2 and H2O [J].

Guizani, C. ;

Sanz, F. J. Escudero ;

Jeguirim, M. ;

Gadiou, R. ;

Salvador, S. .

FUEL PROCESSING TECHNOLOGY, 2015, 138 :687-694

[5] Dynamic Molecular Structure of Plant Biomass-Derived Black Carbon (Biochar) [J].

Keiluweit, Marco ;

Nico, Peter S. ;

Johnson, Mark G. ;

Kleber, Markus .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2010, 44 (04) :1247-1253

[6] Characterization of the structural features of char from the pyrolysis of cane trash using Fourier transform - Raman spectroscopy [J].

Keown, Daniel M. ;

Li, Xiaojiang ;

Hayashi, Jun-Ichiro ;

Li, Chun-Zhu .

ENERGY & FUELS, 2007, 21 (03) :1816-1821

[7] FT-Raman spectroscopic study of the evolution of char structure during the pyrolysis of a Victorian brown coal [J].

Li, Xiaojiang ;

Hayashi, Jun-ichiro ;

Li, Chun-Zhu .

FUEL, 2006, 85 (12-13) :1700-1707

[8]

Loffler K., 2010, FUTURE IND BIOREFINE

[9] Raman spectroscopy for the analysis of coal: a review [J].

Potgieter-Vermaak, S. ;

Maledi, N. ;

Wagner, N. ;

Van Heerden, J. H. P. ;

Van Grieken, R. ;

Potgieter, J. H. .

JOURNAL OF RAMAN SPECTROSCOPY, 2011, 42 (02) :123-129

[10] Structural analysis of char by Raman spectroscopy: Improving band assignments through computational calculations from first principles [J].

Smith, Matthew W. ;

Dallmeyer, Ian ;

Johnson, Timothy J. ;

Brauer, Carolyn S. ;

McEwen, Jean-Sabin ;

Espinal, Juan F. ;

Garcia-Perez, Manuel .

CARBON, 2016, 100 :678-692