CIESC Journal ›› 2014, Vol. 65 ›› Issue (2): 381-389.DOI: 10.3969/j.issn.0438-1157.2014.02.003

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New technology for thermo-chemical comprehensive utilization of coal

JIN Yong1, HU Yongqi2, HU Shanying1, WANG Yong2, ZHAO Ruihong2, YU Haipeng2, LI Feilong2   

  1. 1 Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
    2 Department of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China
  • Received:2013-04-07 Revised:2013-12-18 Online:2014-02-05 Published:2014-02-05

煤炭热力学高效和化学高价值利用新工艺

金涌1, 胡永琪2, 胡山鹰1, 王勇2, 赵瑞红2, 余海鹏2, 李飞龙2   

  1. 1 清华大学化学工程系, 北京 100084;
    2 河北科技大学化学与制药工程学院, 河北 石家庄 050018
  • 通讯作者: 胡山鹰

Abstract: A new process was proposed in this article, which included coal topping, semi-coke oxygen-rich direct combustion and high temperature gas cleaning, gas turbine power generation, steam turbine power generation, CO2 capture, value-adding treatment of topping gas products. High value chemical utilization of coal was achieved with appropriate pyrolysis of macromolecular hydrocarbons in coal and with hydrogenation of tar to get hydrocarbon liquid fuels. Thermal efficiency was further raised through comprehensive utilization of high level thermal energy with high temperature dust-removal, combination of gas turbine and thermal power generating units.

Key words: coal, high thermal efficiency, high value chemical utilization, high temperature dust-removal, semi-coke oxygen-rich direct combustion

摘要: 提出一种煤炭热力学高效和化学高价值利用新工艺(TCCUC),包括煤炭拔头技术—半焦富氧直燃制备燃气轮机高温工质系统—燃气发电—蒸汽发电系统—CO2捕集技术—干馏拔头产物提质处理技术六个技术模块。该工艺通过煤干馏拔头和焦油加氢等技术,对煤中大分子碳氢化合物进行适当热解和对热解产物焦油加氢处理得到高价值的碳氢液体燃料,实现煤炭的化学高价值利用;通过高温过滤、半焦直燃、燃气轮机与蒸汽轮机相结合等方法,实现对煤炭燃烧过程中高位热能的充分利用,进一步提高热-电联产效率。

关键词: 煤炭, 热力学高效利用, 化学高值利用, 高温除尘, 半焦富氧直燃

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