| 热解条件对气化水焦浆用半焦性质的影响 |
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| 引用本文： | 钱卫,解强,杨晓光,王劲草,孙凯蒂.热解条件对气化水焦浆用半焦性质的影响[J].中国煤炭,2012,38(7):72-76. |
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| 作者姓名： | 钱卫 解强 杨晓光 王劲草 孙凯蒂 |
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| 作者单位： | 1. 中国矿业大学(北京)化学与环境工程学院,北京市海淀区,100083
2. 中国矿业大学(北京)化学与环境工程学院,北京市海淀区,100083;黑龙江科技学院,黑龙江省哈尔滨市,150027 |
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| 基金项目： | 中央高校基本科研业务费资助项目(2009KH10) |
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| 摘 要： | 选用双鸭山东荣长焰煤为样品,利用马弗炉进行了中低温热解试验,考察了热解温度、升温速度和保温时间等对半焦的产率、组成和发热量的影响,并以水焦浆气化对原料的要求为导向,研究热解温度对半焦气化反应活性和可磨性的影响.研究结果表明在热解工艺条件中,热解温度对半焦的产率、组成和发热量的影响最大,随着热解温度的提高,热解半焦产率和气化反应活性均降低,半焦灰分升高.热解温度在400～700℃下所制半焦的内在水分、发热量和可磨性均满足水焦浆气化的基本要求,且当热解温度在400～450℃时,所得半焦的哈氏可磨度更高,预测的成浆性也更好,综合分析可确定,热解温度控制在400～450℃之间制备的长焰煤半焦适用于水焦浆气化.
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| 关 键 词： | 水焦浆 气化 长焰煤 中低温干馏 气化反应活性 |
Effect of pyrolysis parameters on characteristics of semi-coke used for water coke slurry gasification |
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| Qian Wei
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Xie Qiang
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Yang Xiaoguang
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Wang Jincao
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Sun Kaidi.Effect of pyrolysis parameters on characteristics of semi-coke used for water coke slurry gasification[J].China Coal,2012,38(7):72-76. |
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| Authors: | Qian Wei Xie Qiang Yang Xiaoguang Wang Jincao Sun Kaidi |
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| Affiliation: | 1(1.School of Chemical and Environmental Engineering,China University of Mining & Technology,Beijing,Haidian,Beijing 100083,China; 2.Heilongjiang Institute of Science and Technology,Harbin,Heilongjiang 150027,China) |
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| Abstract: | Taking long flame coal of Dongrong as the sample,the paper uses muffle furnace to do pyrolysis test at medium-low temperature to study the effects of pyrolysis temperature,heating rate,and holding time on semi-coke yield,composition and calorific value and research the influence of pyrolysis temperature on gasification reactivity and grindability of semi-coke in accordance with the specifications of feedstock used for water coke slurry gasification.The results show that among the pyrolysis parameters,pyrolysis temperature is the most influential factor.As pyrolysis temperature increases,the semi-coke yield and gasification reactivity decrease and the ash content increases.The inherent water,calorific value,and grindability of semi-coke meet requirements of feedstock of water coke slurry gasification at the temperature of 400~700℃;meanwhile,when the pyrolysis temperature is between 400℃ and 450℃,the Hardgrove grindability of semi-coke is higher and the predicting slurry ability is better.The comprehensive analysis shows the semi-coke derived from long-flame-coal at pyrolysis temperature of 400~450℃ fit in with the needs of water coke slurry gasification. |
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| Keywords: | water coke slurry gasification long flame coal medium-low temperature pyrolysis gasification reactivity |
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