Novel coal-based precursors for cokes with highly oriented microstructures

被引：13
作者：
Alvarez, P. [1 ]
Diez, Noel [1 ]
Santamaria, R. [1 ]
Blanco, C. [1 ]
Menendez, R. [1 ]
Granda, M. [1 ]
机构：
[1] CSIC, Inst Nacl Carbon, Dept Chem Mat, E-33080 Oviedo, Spain
来源：
FUEL | 2012年 / 95卷 / 01期
关键词：
Anthracene oil; Coke; Microstructure; NEEDLE COKE; ANTHRACENE OIL; TUBE BOMB; PITCHES; CARBONIZATION;
D O I：
10.1016/j.fuel.2011.09.023
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：
The suitability of new environmentally-friendly coal-based products for the preparation of cokes with a highly oriented microstructure is investigated. These products (AO-A and AO-B) are obtained from two different stages of the processing of an industrial anthracene oil. The composition and degree of polymerization determine their ability to produce cokes with highly oriented textures. The transformation of AO-A into a highly oriented coke requires pyrolysis temperatures of 450-460 degrees C, residence times of 8-20 h and a pressure of 5 bar, whereas AO-B, which is more polymerized, requires lower temperatures (420-440 degrees C) and shorter residence times (8 h) without the application of any external pressure. The larger extent of highly oriented microstructures present in cokes from AO-A is explained from the greater hydrogen transfer capacity during the coking process. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：400 / 406
页数：7
相关论文
共 20 条
  • [1] Characterization and Pyrolysis Behavior of Novel Anthracene Oil Derivatives
    Alvarez, P.
    Granda, M.
    Sutil, J.
    Menendez, R.
    Fernandez, J. J.
    Vina, J. A.
    Morgan, T. J.
    Millan, M.
    Herod, A. A.
    Kandiyoti, R.
    [J]. ENERGY & FUELS, 2008, 22 (06) : 4077 - 4086
  • [2] Mesophase from Anthracene Oil-Based Pitches
    Alvarez, P.
    Sutil, J.
    Santamaria, R.
    Blanco, C.
    Menendez, R.
    Granda, M.
    [J]. ENERGY & FUELS, 2008, 22 (06) : 4146 - 4150
  • [3] Preparation of Low Toxicity Pitches by Thermal Oxidative Condensation of Anthracene Oil
    Alvarez, Patricia
    Granda, Marcos
    Sutil, Juan
    Santamaria, Ricardo
    Blanco, Clara
    Menendez, Rosa
    Jose Fernandez, Juan
    Antonio Vina, Jose
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (21) : 8126 - 8132
  • [4] Brooks J. D., 1968, Chemistry and physics of carbon. Vol.4, P243
  • [5] NMR:: A powerful tool in the characterization of coal tar pitch
    Díaz, C
    Blanco, CG
    [J]. ENERGY & FUELS, 2003, 17 (04) : 907 - 913
  • [6] Hackley RC, 1960, US patent, Patent No. 2922755
  • [7] Hoover DS, 1979, EXT ABSTR 4 BIENN C, P393
  • [8] SEMIQUANTITATIVE CORRELATION BETWEEN OPTICAL ANISOTROPY AND CTE OF NEEDLE-LIKE COKE GRAINS
    MOCHIDA, I
    KORAI, Y
    OYAMA, T
    [J]. CARBON, 1987, 25 (02) : 273 - 278
  • [9] MOCHIDA I, 1994, CHEM PHYS CARBON, V24, P111
  • [10] CARBONIZATION IN THE TUBE BOMB LEADING TO NEEDLE COKE .3. CARBONIZATION PROPERTIES OF SEVERAL COAL-TAR PITCHES
    MOCHIDA, I
    FEI, YQ
    KORAI, Y
    FUJIMOTO, K
    YAMASHITA, R
    [J]. CARBON, 1989, 27 (03) : 375 - 380
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