Volume 48 Issue 5
Oct.  2020
Turn off MathJax
Article Contents
Abstract
References
Related Articles
ZANG Libin, CUI Hufeng, LI Qingchun. Pyrolysis characteristics and pyrolysis product composition of bituminous coal under weak oxidizing atmosphere[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(5): 34-39. DOI: 10.3969/j.issn.1001-1986.2020.05.004
Citation: ZANG Libin, CUI Hufeng, LI Qingchun. Pyrolysis characteristics and pyrolysis product composition of bituminous coal under weak oxidizing atmosphere[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(5): 34-39. DOI: 10.3969/j.issn.1001-1986.2020.05.004
shu

Pyrolysis characteristics and pyrolysis product composition of bituminous coal under weak oxidizing atmosphere

  • Inner Mongolia Huang Tao Le Ge Coal Co. Ltd., Shandong Energy Zibo Mining Group Co. Ltd., Ordos 017313, China

More Information
  • Received Date: March 25, 2020
  • Revised Date: May 18, 2020
  • Published Date: October 24, 2020
    Graphical Abstract
    • Abstract
  • In order to improve the light tar and gas yield, the yield distribution and composition characteristics of pyrolysis products of bituminous coal from Shaanxi Hongliulin in the nitrogen atmosphere and weak oxygen atmosphere were studied in a fixed bed reactor. The results showed that the yield of char and tar were reduced under the weak oxygen atmosphere, and the yield of CO and CO2 increased significantly, leading to the increase of total gas yield. Due to the oxidation combustion reaction, the yield of H2, CH4 and C2-C3 gradually decreased with the increase of oxygen content in the pyrolysis atmosphere, and the water content changed little during the process. The decomposition temperature of pyrolysis tar in the micro oxygen atmosphere was more than that of N2 atmosphere. When the pyrolysis temperature was 800℃ and ER=0.14, the tar yield was 6.22%, the H2 yield was 14.01 mg/L, and the tar and H2 product yield reached the best value. The relative content of aliphatic hydrocarbons, phenols and benzene series in pyrolysis tar was lower, and the relative content of PAHs was higher than that of pyrolysis tar in N2. The graphitization degree of char in the weak oxygen atmosphere was lower than that of pyrolysis char in N2, and the gasification reactivity of char in micro oxygen atmosphere was greater than that in N2. The results provide basic data for the preparation of high-value fuel by pyrolysis of bituminous coal in fixed bed.
    • FullText(HTML)
    • References (22)
  • [1]
    赵洪宇,任善普,贾晋炜,等. 钙、镍离子3种不同负载方式对褐煤热解-气化特性影响[J]. 煤炭学报,2015,40(7):1660-1669.

    ZHAO Hongyu,REN Shanpu,JIA Jinwei,et al. Effects of calcium and nickel ions by three different load methods on pyrolysis and gasification characteristics of lignite[J]. Journal of China Coal Society,2015,40(7):1660-1669.
    [2]
    李昌伦,王永刚,林雄超,等. 内在矿物对高灰褐煤热解焦收率及特性的影响[J]. 煤炭学报,2017,42(8):2157-2163.

    LI Changlun,WANG Yonggang,LIN Xiongchao,et al. Impact of inherent minerals on the yield and properties of char from pyrolysis of the lignite with high ash content[J]. Journal of China Coal Society,2017,42(8):2157-2163.
    [3]
    冯冬冬. 多活性位焦炭原位催化裂解生物质焦油的反应机理研究[D]. 哈尔滨:哈尔滨工业大学,2018. FENG Dongdong. Mechanism of in-situ catalytic cracking of biomass tar over biochar with multiple active sites[D]. Harbin:Harbin Institute of Technology,2018.
    [4]
    KONWAR K,NATH H P,BHUYAN N,et al. Effect of biomass addition on the devolatilization kinetics,mechanisms and thermodynamics of a northeast Indian low rank sub-bituminous coal[J]. Fuel,2019,256:115926.
    [5]
    刘钦甫,崔晓南,徐占杰,等. 煤热解气体主产物及热解动力学分析[J]. 煤田地质与勘探,2016,44(6):27-32.

    LIU Qinfu,CUI Xiaonan,XU Zhanjie,et al. Main gases and kinetics of coal pyrolysis[J]. Coal Geology & Exploration,2016,44(6):27-32.
    [6]
    孙晔伟,唐跃刚,李正越,等. 中国特高挥发分特高油产率煤的分布及其特征[J]. 煤田地质与勘探,2017,45(5):6-12.

    SUN Yewei,TANG Yuegang,LI Zhengyue,et al. Occurrence of super high volatile and tar yield coal in China[J]. Coal Geology & Exploration,2017,45(5):6-12.
    [7]
    杜美利,蔡会武,王水利,等. 陕北高挥发分烟煤煤质特征与应用研究[J]. 煤田地质与勘探,2004,32(5):10-12.

    DU Meili,CAI Huiwu,WANG Shuili,et al. Coal property and application of high volatile bituminous coal in the northern Shaanxi Province[J]. Coal Geology & Exploration,2004,32(5):10-12.
    [8]
    赵洪宇,李玉环,宋强,等. 外加铁矿石对哈密低阶煤热解特性影响[J]. 燃料化学学报,2016,44(2):154-161.

    ZHAO Hongyu,LI Yuhuan,SONG Qiang,et al. Effect of additive iron ore on pyrolysis characteristics of a low rank coal from Hami[J]. Journal of Fuel Chemistry and Technology,2016,44(2):154-161.
    [9]
    吕清刚,于旷世,朱治平,等. 固体热载体快速热解粉煤提油中试研究[J]. 煤炭学报,2012,37(9):1591-1595.

    LYU Qinggang,YU Kuangshi,ZHU Zhiping,et al. Pilot plant research on fast pyrolysis of coal in circulating fluidized bed with hot char carrier[J]. Journal of China Coal Society,2012,37(9):1591-1595.
    [10]
    BINNER E,FACUN J,CHEN Luguang,et al. Effect of coal drying on the behavior of inorganic species during Victorian brown coal pyrolysis and combustion[J]. Energy & Fuels,2011,25(7):2764-2771.
    [11]
    YIP K,WU Hongwei,ZHANG Dongke. Effect of inherent moisture in collie coal during pyrolysis due to in-situ steam gasification[J]. Energy & Fuels,2007,21(5):2883-2891.
    [12]
    苗青,郑化安,张生军,等. 低温煤热解焦油产率和品质影响因素研究[J]. 洁净煤技术,2014,20(4):77-82.

    MIAO Qing,ZHENG Hua'an,ZHANG Shengjun,et al. Influencing factors of coal tar yield and quality from low-temperature coal pyrolysis[J]. Clean Coal Technology,2014,20(4):77-82.
    [13]
    陈宗定,张书,王芳杰,等. 活化前后半焦原位催化重整褐煤热解焦油研究[J]. 煤炭科学技术,2014,42(11):105-110.

    CHEN Zongding,ZHANG Shu,WANG Fangjie,et al. Study on in-situ catalytic reforming of coal tar from pyrolysis of brown coal by activated and inactivated char[J]. Coal Science and Technology,2014,42(11):105-110.
    [14]
    黄黎明,马凤云,刘月娥,等. 煤热解耦合焦油裂解对焦油品质的影响[J]. 煤炭学报,2016,41(6):1533-1539.

    HUANG Liming,MA Fengyun,LIU Yue'e,et al. Effect of coal pyrolysis coupled with its product tar cracking behavior on tar quality[J]. Journal of China Coal Society,2016,41(6):1533-1539.
    [15]
    赵洪宇,任善普,贾晋炜,等. 褐煤经四氢化萘处理后的结构及热解-气化特性分析[J]. 化工学报,2015,66(10):4193-4201.

    ZHAO Hongyu,REN Shanpu,JIA Jinwei,et al. Analysis of structure and pyrolysis and gasification characteristics of lignite after tetrahydronaphthalene treatment[J]. CIESC Journal,2015,66(10):4193-4201.
    [16]
    黄桃花,王亦飞,焦延涛,等. 高效能两段组合式煤气化过程热态试验[J]. 化工学报,2010,61(11):2924-2930.

    HUANG Taohuang,WANG Yifei,JIAO Yantao,et al. Hot-state experiment of high-performance two stage combined coal gasification[J]. CIESC Journal,2010,61(11):2924-2930.
    [17]
    赵洪宇,郑星,付兴民,等. 热压脱水对褐煤结构及其热解特性的影响[J]. 煤炭学报,2015,40(5):1165-1173.

    ZHAO Hongyu,ZHENG Xing,FU Xingmin,et al. Effect of hot pressing dewatering on the structure and pyrolysis characteristics of lignite[J]. Journal of China Coal Society,2015,40(5):1165-1173.
    [18]
    ZENG Xi,WANG Yin,YU Jian,et al. Coal pyrolysis in a fluidized bed for adapting to a two-stage gasification process[J]. Energy & Fuels,2011,25(3):1092-1098.
    [19]
    ZENG Xi,WANG Fang,LI Hongling,et al. Pilot verification of a low-tar two-stage coal gasification process with a fluidized bed pyrolyzer and fixed bed gasifier[J]. Applied Energy,2014,115(4):9-16.
    [20]
    王芳,曾玺,孙延林,等. 射流预氧化流化床气化炉中黏结性煤的反应特性[J]. 化工学报,2015,66(6):2212-2219.

    WANG Fang,ZENG Xi,SUN Yanlin,et al. Reaction characteristics of caking coal in jetting pre-oxidation fluidized bed gasifier[J]. CIESC Journal,2015,66(6):2212-2219.
    [21]
    YAN Lunjing,KONG Xiaojun,ZHAO Ruifang,et al. Catalytic upgrading of gaseous tars over zeolite catalysts during coal pyrolysis[J]. Fuel Processing Technology,2015,138:424-429.
    [22]
    赵洪宇,李玉环,任善普,等. 钙、镍离子负载方式对烟煤热解-气化特性影响及煤焦结构分析[J]. 煤炭学报,2015,40(12):2939-2947.

    ZHAO Hongyu,LI Yuhuan,REN Shanpu,et al. Effects of the load methods of calcium and nickel ions on pyrolysis and gasification characteristics and the analysis of char structure of bituminous coal[J]. Journal of China Coal Society,2015,40(12):2939-2947.
    • Related Articles

  • Related Articles

    [1]DUAN Piaopiao, WANG Wenfeng, MA Mengya. Distribution characteristics of trace elements in different density fractions of high-germanium coal from Wulantuga, Inner Mongolia, China[J]. COAL GEOLOGY & EXPLORATION, 2022, 50(11): 125-133. DOI: 10.12363/issn.1001-1986.22.03.0204
    [2]XU Bin, XIANG Fang, LI Shuxia. Distribution characteristics and paleo-climatic significance of continental climate-sensitive sediments in the Late Cretaceous in China[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(5): 190-199. DOI: 10.3969/j.issn.1001-1986.2021.05.021
    [3]ZHANG Hui, WU Jing, JIN Xianglan, LI Guihong. The genetic type and its geological indication significance of shale minerals in Niutitang Formation[J]. COAL GEOLOGY & EXPLORATION, 2018, 46(2): 61-67. DOI: 10.3969/j.issn.1001-1986.2018.02.010
    [4]TAO Zhenpeng, YANG Ruidong, CHENG Wei, LUO Rui. Enrichment characteristics of associated elements of Late Permian coal and coal ash from Pu'an and Qinglong coal mining area in Guizhou Province[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(4): 44-51. DOI: 10.3969/j.issn.1001-1986.2017.04.008
    [5]XUE Liangxi, SHEN Yulin, GU Jiaoyang, ZHENG Jun, ZHANG Chunliang. Characteristic and geological significance of trace elements in mudstone of Upper Carboniferous-Lower Permian in Linxing area[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(3): 18-24,31. DOI: 10.3969/j.issn.1001-1986.2017.03.004
    [6]GAO Deyi, PING Wenwen, HU Baolin, LIU Huihu, XU Hongjie, CHENG Qiao, ZHANG Ping. Geochemistry characteristics of trace elements of mud shale of Shanxi Formation in Huainan coalfield and its significance[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(2): 14-21. DOI: 10.3969/j.issn.1001-1986.2017.02.003
    [7]FAN Zhangqun, SONG Xiaozhong. Characteristics of semi-vitrinite of the Mesozoic coal in Xinjiang area and their research significance[J]. COAL GEOLOGY & EXPLORATION, 2014, 42(5): 9-12. DOI: 10.3969/j.issn.1001-1986.2014.05.003
    [8]WANG Qingwei, WANG Tong, YANG Chunxia, WEI Qingxi. The distribution characteristics of coalbed methane fluid flowing state in coal reservoir[J]. COAL GEOLOGY & EXPLORATION, 2011, 39(6): 24-27. DOI: 10.3969/j.issn.1001-1986.2011.06.006
    [9]Li Lintao, Jia Xirong. THE SIGNIFICANCE AND CONTENT OF THE CHAPTER OF ENVIRONMENT PROTECTION IN GEOLOGICAL REPORT IN GEOLOGICAL OF COAL FIELD[J]. COAL GEOLOGY & EXPLORATION, 1998, 26(S1): 20-22.
    [10]Zhang zhenxi. THE ANTHROCOLOGY CHARACTERISTICS AND ITS GEOLOGIC SIGNIFCANCE OF THE THERMAL METAMORPHIC COAL IN DATONG COALFIELD[J]. COAL GEOLOGY & EXPLORATION, 1994, 22(S1): 62-64.

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (141) PDF downloads (9) Cited by()
    Related

    Copyright of website design © Editorial Office of Coal Geology & Exploration 陕ICP备05001372号-6 陕公网安备 61019002002193号

    Address: Editorial Office of Coal Geology & Exploration, No.82 Jinye 1st Rd, High-Tech Zone, Xi'an City, Shaanxi, China

    Tel: 029-81778075 E-mail: ccrimtdzykt@vip.163.com

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return