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半焦原位气化气对淖毛湖煤热解焦油产率和品质的影响

孔娇 王欢 于彦旭 程亚楠 王美君 常丽萍 鲍卫仁

孔娇, 王欢, 于彦旭, 程亚楠, 王美君, 常丽萍, 鲍卫仁. 半焦原位气化气对淖毛湖煤热解焦油产率和品质的影响[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60164-0
引用本文: 孔娇, 王欢, 于彦旭, 程亚楠, 王美君, 常丽萍, 鲍卫仁. 半焦原位气化气对淖毛湖煤热解焦油产率和品质的影响[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60164-0
KONG Jiao, WANG Huan, YU Yan-xu, CHEN Ya-nan, WANG Mei-jun, CHANG Li-ping, BAO Wei-ren. Effects of syngas from simi-coke in-situ gasification on the yield and quality of Naomaohu coal tar[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60164-0
Citation: KONG Jiao, WANG Huan, YU Yan-xu, CHEN Ya-nan, WANG Mei-jun, CHANG Li-ping, BAO Wei-ren. Effects of syngas from simi-coke in-situ gasification on the yield and quality of Naomaohu coal tar[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60164-0

半焦原位气化气对淖毛湖煤热解焦油产率和品质的影响

doi: 10.1016/S1872-5813(21)60164-0
基金项目: 国家自然科学基金项目(21808152, 21878208)
详细信息
    作者简介:

    孔娇:kongjiao06@163.com

    通讯作者:

    Tel: 0351-6010482; E-mail: wangmeijun@tyut.edu.cn

  • 中图分类号: TQ530.2

Effects of syngas from simi-coke in-situ gasification on the yield and quality of Naomaohu coal tar

Funds: The project was supported by National Natural Science Foundation of China (21808152, 21878208)
  • 摘要: 在煤热解过程中,富氢气体的引入对煤热解焦油的产率和组成有显著影响。本文采用实验室自制的热解气化一体化反应器,考察了气化合成气对煤热解焦油产率和品质的影响。结果表明,淖毛湖煤热解焦油产率在600 ℃时达到最大,气化合成气对提高低温(550–600 ℃)煤焦油的产率更有利,其中550 ℃时焦油产率较N2下提高了4.4%。气化合成气气氛下,高温(650–800 ℃)焦油的产率较N2低,但650–700 ℃热解焦油的品质明显改善,其中轻质组分的产率有明显提升;低于600 ℃热解挥发分中脂肪烃和含氧化合物的裂解反应加剧,使焦油中其含量降低,而苯系和萘系化合物的生成量增加;650 ℃以上的热解挥发分中酚类化合物的二次裂解反应会加剧,导致焦油中其生成量降低;对800 ℃热解挥发分中多环芳烃二次裂解反应的发生更有利,但对提高低于700°热解焦油中多环芳烃的生成量则更加有利。
  • 图  1  实验装置示意图[25, 26]

    1-feeder; 2-reactor; 3-fumace; 4-mass flow controller; 5-water tank; 6-pump; 7-steam generator; 8-condenser; 9-constant temperature circulator; 10-ice-water trap; 11-dry ice trap; 12-THF trap; 13-cotton filter; 14-wet gas flowmeter; 15- high molecular cellulose filter; 16-desiccant; 17-raman laser gas analyzer

    Figure  1  Schematic diagram of experimental equipment

    图  2  热解气化耦合实验示意图[25]

    Figure  2  Schematic diagram for coupling pyrolysis and char gasification[25]

    图  3  淖毛湖煤在不同温度下热解的产物分布

    Figure  3  Product distribution of Naomaohu coal pyrolysis at different temperatures

    图  4  淖毛湖煤热解焦油的产率

    Figure  4  Yield of tar formed during Naomaohu coal pyrolysis

    图  5  淖毛湖煤热解气体的产率

    Figure  5  Yield of gas formed during Naomaohu coal pyrolysis

    图  6  淖毛湖煤热解焦油中各组分的生成量

    Figure  6  Amount of group composition in Naomaohu coal tar

    图  7  不同气氛下淖毛湖煤热解焦油的组分分布

    Figure  7  Distribution of group composition in Naomaohu coal tar

    图  8  不同气氛下淖毛湖煤热解积碳的生成量

    Figure  8  Amount of coke generated during Naomaohu coal pyrolysis

    图  9  不同气氛下淖毛湖煤热解焦油的组成

    Figure  9  Composition of Naomaohu coal tar obtained with different atmosphere

    表  1  淖毛湖煤的工业分析和元素分析[25, 26]

    Table  1  Proximate and Ultimate analyses of Naomaohu coal [25, 26]

    Proximate analysis (wt.%)Ultimate analysis (wt.%, daf)Gray-King (wt.%, daf)
    MarAdVdafCHNSOaTar yield
    19.55.850.1274.355.130.720.3119.4915.4
    ar: as received basis, d: dry basis, daf: dry and ash free basis, a: by difference.
    下载: 导出CSV

    表  2  淖毛湖煤碳结构类型及含量[31]

    Table  2  Proportion of different structural carbons in solid-state 13C NMR spectra[31]

    SymbolsChemical shift (ppm)Carbon typeProportion of different carbon types in coal
    $ {f}_{al}^{1} $0−25Methyl0.11
    $ {f}_{al}^{2} $25−50Methylene0.19
    $ {f}_{al}^{o1} $50−67Methoxy0.21
    $ {f}_{al}^{o2} $67−90Oxy-methine, Saccharide, Alcohol, Ether0.05
    $ {f}_{a}^{1} $90−129Aromatic atoms bound to hydrogen0.19
    $ {f}_{a}^{2} $129−137Bridging ring junction
    Aromatic carbon
    0.10
    $ {f}_{a}^{3} $137−148Branched aromatic carbon0.07
    $ {f}_{a}^{o1} $148−171Oxy-aromatic carbon0.03
    $ {f}^{co} $171−187Carboxyl, Ester, Quinone0.01
    $ {f}^{co} $187−220Ketone, Quinine, Aldehyde0.04
    下载: 导出CSV
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  • 收稿日期:  2021-07-26
  • 修回日期:  2021-09-14
  • 网络出版日期:  2021-10-13

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