[1]赵洪宇,李玉环,宋 强,等.氧化钙对褐煤和无烟煤热解特性影响[J].西安科技大学学报,2016,(01):80-85.
 ZHAO Hong-yu,LI Yu-huan,SONG Qiang,et al.Effect of calcium oxide on pyrolysis characteristics of brown coal and anthracite coal[J].Journal of Xi'an University of Science and Technology,2016,(01):80-85.
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氧化钙对褐煤和无烟煤热解特性影响(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2016年01期
页码:
80-85
栏目:
出版日期:
2016-02-28

文章信息/Info

Title:
Effect of calcium oxide on pyrolysis characteristics of brown coal and anthracite coal
文章编号:
10.13800/j.cnki.xakjdxxb.2016.0114
作者:
赵洪宇1李玉环2宋 强1吕俊鑫1舒元锋1 王子民1刘 飞3曾 鸣1舒新前1
1.中国矿业大学 化学与环境工程学院,北京 100083; 2.内蒙古工业大学能源与动力工程学院,内蒙古 呼和浩特 010000; 3.国土资源部煤炭资源勘查与综合利用重点实验室,陕西 西安 710054
Author(s):
ZHAO Hong-yu1LI Yu-huan2SONG Qiang1LV Jun-xin1 SHU Yuan-feng1WANG Zi-min1Liu Fei3ZENG Ming1SHU Xin-qian1
1.School of Chemical and Environmental Engineering,China University of Mining & Technology,Beijing 100083,China; 2.College of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010000,China; 3.Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,Ministry of Land and Resources,Xi'an 710054,China
关键词:
氧化钙 褐煤 无烟煤 产物分布 半焦性质
Keywords:
calcium oxide lignite anthracite coal products distribution char property
分类号:
TQ 536
文献标志码:
A
摘要:
为研究CaO对褐煤和无烟煤热解特性影响,采用实验室小型固定床反应器对锡林郭勒褐煤(X)和宁夏石嘴山无烟煤(SH),进行热解实验,研究了CaO对热解三相产物分布规律影响。实验结果表明:在500~600 ℃时,添加2%CaO后褐煤热解生成CO2的产率小于未添加CaO煤样热解生成CO2的产率,添加CaO与否对其他3种气体H2,CH4,CO产率影响不大; 与未加入CaO的褐煤煤样相比,加入CaO的褐煤煤样在相应温度下热解气相产物产率小幅度降低,且随着热解温度的升高,加入CaO的褐煤煤样气相产物产率增加速率大于未加入CaO的褐煤煤样。褐煤脱挥发分主要在600 ℃之前的热解阶段,而对于无烟煤来说,CaO在中温热解阶段对挥发分的脱除具有促进作用。对于褐煤半焦来说,加入2%CaO一直作为灰分存在半焦中,且随着热解温度的升高,褐煤半焦在高温时反应活性较高,发生热缩聚反应,导致半焦中有机质含量降低,以上2种原因直接导致褐煤半焦灰分升高; 对于无烟煤来说,灰分增加主要是由于CaO的加入。
Abstract:
In order to explore the effect of calcium oxide on pyrolysis characteristics of brown coal and anthracite coal,the changes of the pyrolysis products distribution were analyzed based on Inner Mongolia Xilinguole lignite and Ningxia anthracite coal(Xilinguole lignite and Ningxia anthracite coal were denoted as X and SH,respectively),and the experiments were carried out with a fixed bed reactor.Research results show that the yield of CO2 generated by lignite after addition of CaO is lower than that of not adding CaO between 500 ℃ and 600 ℃,and the CaO has little effect on the yield of the other three gases.Compared with the lignite without CaO,the yield of gas product decreased corresponding temperature for lignite with the addition of CaO,and increase rate of gas yield for the lignite with CaO was higher than that of without CaO with the increase of pyrolysis temperature.The removal of volatile matter from lignite was mainly in the stage of pyrolysis of 600 ℃,while for anthracite,CaO plays a promoting role in removal of volatile in the medium temperature.For lignite char,the added 2%CaO has been used as the ash in the presence of char.High activity reaction of lignite char at high temperature,thermal condensation reaction occurred,resulting in the decrease of organic matter content in char with the increase of pyrolysis temperature.The above two reasons led directly to the lignite char ash content increased.For anthracite,the increase of ash is mainly due to the addition of CaO.

参考文献/References:

[1] 郝丽芳,李松庚,崔丽杰,等.煤催化热解技术研究进展[J].煤炭科学技术,2012,40(10):108-112. HAO Li-fang,LI Song-geng,CUI Li-jie,et al.Research progress of coal catalytic pyrolysis technology[J].Coal Science and Technology,2012,40(10):108-112.
[2] HAN Jiang-ze,WANG Xing-dong,YUE Jun-rong,et al.Catalytic upgrading of coal pyrolysis tar over char-based catalysts[J].Fuel Processing Technology,2014,122:98-106.
[3] BAI Yong-hui,YAN Lun-jing,LI Guan-long,et al.Ef-fects of demineralization on phenols distribution and formation duringcoal pyrolysis[J].Fuel,2014,134:368-374.
[4] Ahmada Tauqeer,Awana Iftikhar A,Nisar Jan,et al.Influence of inherent minerals and pyrolysis temperature on the yield of pyrolysates of some Pakistani coals[J].Energy Conversion and Management,2009,50:1 163-1 171.
[5] 赵洪宇,郑 星,付兴民,等.热压脱水对褐煤结构及热解特性的影响[J].煤炭学报,2015,40(5):1 165-1 173. ZHAO Hong-yu,ZHENG Xing,FU Xing-min,et al.Effect of hot pressing dewatering on the structure and pyrolysis characteristics of lignite[J].Journal of China Coal Society,2015,40(5):1 165-1 173.
[6] 景旭亮,王志青,余钟亮,等.半焦的多循环气化活性及微观结构分析[J].燃料化学学报,2013,41(8):917-921. JING Xu-liang,WANG Zhi-qing,YU Zhong-liang,et al.Multi-circula-ted gasification reactivity of coal char and its microstructure analysis[J].Journal of Fuel Chemistry and Technology,2013,41(8):917-921.
[7] 朱廷钰,张守玉,黄戒介,等.氧化钙对流化床煤温和气化半焦性质的影响[J].燃料化学学报,2000(1):40-43. ZHU Ting-yu,ZHANG Shou-yu,HUANG Jie jie,et al.Effect of calcium oxide on properties of char from fluidized bed coal mild gasification[J].Journal of Fuel Chemistry and Technology,2000(1):40-43.
[8] 程 煜,刘永卓,田红景,等.铁基复合载氧体煤化学链气化反应特性及机理[J].化工学报,2013(7):2 587-2 595. CHENG Yu,LIU Yong-zhuo,TIAN Hong-jing,et al.Chemical looping gasification reaction characteristics and mechanism of coal and Fe-based composite oxygen carriers[J].CIESC Journal,2013(7):2 587-2 595.
[9] YAN Jing-chong,BAI Zon-qing,BAI Jin,et al.Effects of organic solvent treatment on the chemical structure and pyrolysis reactivity of brown coal[J].Fuel,2014,128:39-45.
[10]袁 帅,陈雪莉,李 军,等.煤快速热解固相和气相产物生成规律[J].化工学报,2011(5):1 382-1 388. YUAN Shuai,CHEN Xue-li,LI Jun,et al.Formations of solid and gas phase products during rapid pyrolysis of coal[J].CIESC Journal,2011(5):1 382-1 388.
[11]赵云鹏.西部弱还原性煤热解特性研究[D].大连:大连理工大学,2010. ZHAO Yun-peng.Pyroiysis behavior of weakly reductive coals from northwest china[D].Dalian:Dalian University of Technology,2010.
[12]李 旭,由世俊,张 欢,等.生物质炭催化重整焦油的动力学模型研究[J].太阳能学报,2014,35(6):949-954. LI Xu,YOU Shi-jun,ZHANG Huan,et al.Study on kinetic model of tar catalytic reforming reaction over biomass char[J].Acta Energiae Solaris Sinica,2014,35(6):949-954.
[13]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):4 193-4 210. ZHAO Hong-yu,REN Shan-pu,JIA Jin-wei,et al.Analysis of structure and pyrolysis and gasification characteristics of lignite after tetrahydronaphthalene treatment[J].CIESC Journal,2015,66(10):4 193-4 210.
[14]HU Jie,LIU Li-juan,CUI Ming-qi,et al.Calcium-promoted catalytic activity of potassium carbonate for gasification of coal char:The synergistic effect unrelated to mineral matter in coal[J].Fuel,2013,111:628-635.
[15]ZHANG Li-xin,KUDO Shin-ji,TSUBOUCHI Nao-to,et al.Catalytic effects of Na and Ca from inexpensive materials on in-situ steam gasification of char from rapid pyrolysis of low rank coal in a drop-tube reactor[J].Fuel Processing Technology,2013,113:1-7.
[16]OUYANG Zi-qu,ZHU Jian-guo,LU Qing-gang.Experimental study on preheating and combustion characteristics of pulverized anthracite coal[J].Fuel,2013,113:122-127.

相似文献/References:

[1]刘爱华,傅雪海,王可新.褐煤储层含气量计算[J].西安科技大学学报,2012,(03):306.
 LIU Ai-hua,FU Xue-hai,WANG Ke-xin.Gas content calculation of lignite reservoir[J].Journal of Xi'an University of Science and Technology,2012,(01):306.

备注/Memo

备注/Memo:
收稿日期:2015-10-21 责任编辑:刘 洁 基金项目:国家自然科学基金(51074170); 新疆维吾尔族自治区科技攻关计划(201532108); 国土资源部煤炭资源勘查与综合利用重点实验室开放研究课题(KF2015-3) 通讯作者:舒新前(1963-),男,陕西汉中人,教授,博士生导师,E-mail:shuxinqian@126.com
更新日期/Last Update: 1900-01-01