| 低温煤热解焦油产率和品质影响因素研究 |
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| 引用本文： | 苗青,;郑化安,;张生军,;李学强,;陈静升,;张志刚.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(4):77-82. |
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| 作者姓名： | 苗青 ;郑化安 ;张生军 ;李学强 ;陈静升 ;张志刚 |
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| 作者单位： | [1]陕西煤业化工技术研究院有限责任公司,陕西西安710065; [2]国家能源煤炭分质清洁转化重点实验室,陕西西安710065 |
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| 基金项目： | 陕西省科技统筹创新工程计划资助项目（2013KTZB01-04-02） |
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| 摘 要： | 煤焦油是低温煤热解技术的主要产物,是重要的化工原料,其产率和品质是评价煤热解工艺的重要指标。从原煤性质(煤种和煤粒径)、热解反应器结构形式及热解工艺条件(原煤预处理、热解温度、压力、升温速率、停留时间、热解气氛及催化剂)等方面综合分析了煤热解焦油产率和品质的影响因素,认为通过优选煤种和热解反应器,对煤样进行适当预处理,选择合适的工艺操作条件和引入加氢催化热解等有助于提高焦油产率和品质。
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| 关 键 词： | 煤热解 焦油产率 焦油品质 影响因素 |
Influencing factors of coal tar yield and quality from low-temperature coal pyrolysis |
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| Affiliation: | MIAO Qing, ZHENG Huaan, ZHANG Shengjun, LI Xueqiang, CHEN Jingsheng, ZHANG Zhigang ( 1.Shaanxi Coal and Chemical Technology Institute Co. ,Ltd. ,Xi＇an 710065,China; 2.State Energy Key Laboratory of Clean Coal Grading Conversion,Xi＇an 710065,China) |
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| Abstract: | Coal tar,the main product of low-temperature coal pyrolysis,is an essential chemical material.The yield and quality of coal tar is an important indicator to evaluate the pyrolysis.Investigate the influencing factors of coal tar yield and quality from the aspects of raw coal characteristics such as coal types and coal particle size,structure of pyrolysis reactors and technical conditions including raw coal pretreat-ment,reaction temperature and pressure,heating rate,gas residence time,reaction atmosphere and catalysts.The results show that the yield and quality of coal tar can be improved by using proper coal and pyrolysis reactors,choosing appropriate technical conditions,adopting cat-alytic hydrogenation pyrolysis and the like. |
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| Keywords: | coal pyrolysis coal tar yield coal tar quality influencing factors |
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