[1]宋成建,曲建林,王昊,等.低温热处理对神府煤成浆性影响的机理研究[J].西安科技大学学报,2015,(06):738-744.[doi:10.13800/j.cnki.xakjdxxb.2015.0611]
 SONG Cheng-jian,QU Jian-lin,WANG Hao,et al.Influenctial mechanism of low temperature thermal treatment on the slurrying ability of Shenfu coal[J].Journal of Xi'an University of Science and Technology,2015,(06):738-744.[doi:10.13800/j.cnki.xakjdxxb.2015.0611]
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低温热处理对神府煤成浆性影响的机理研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年06期
页码:
738-744
栏目:
出版日期:
2015-12-30

文章信息/Info

Title:
Influenctial mechanism of low temperature thermal treatment on the slurrying ability of Shenfu coal
作者:
宋成建1曲建林1王昊2吴涛2周安宁1
1.西安科技大学 化学与化工学院,陕西 西安 710054; 2.神华宁夏煤业集团,宁夏 银川 750011
Author(s):
SONG Cheng-jian1QU Jian-lin1WANG Hao2WU Tao2ZHOU An-ning1
1.College of Chemistry and Chemical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Shenhua Ningxia Coal Industry Group,Yinchuan 750011,China
关键词:
神府煤 水煤浆 热处理 产物 成浆性
Keywords:
Shenfu coal coal water slurry thermal treatment product slurrying ability
分类号:
TQ 534.4
DOI:
10.13800/j.cnki.xakjdxxb.2015.0611
文献标志码:
A
摘要:
采用低温热处理方法对神府煤进行了改性,通过FT-IR、BET、接触角测定等研究了低温热处理对神府煤的结构与表面疏水性的影响,并进一步探讨了热处理对神府煤成浆性的影响机理。结果表明:神府煤经过热处理后,其表面羧基和羟基等极性官能团减少,煤粒表面亲水性降低,比表面积减小,平均孔径增大; 热处理温度在350 ℃~400 ℃时,煤的成浆粘度较低; 热处理时间对热处理后煤粉的浆体粘度和析水率有一定的影响,热处理温度较低时,热处理时间对浆体粘度有显著影响,对析水率影响较小,热处理温度较高时,热处理时间对浆体粘度影响较小,但是对析水率影响较大; 用低温热处理方法,不仅可改善神府煤的成浆性,同时,可获得3%左右的焦油。
Abstract:
The low temperature thermal treatment method was used to modify Shenfu coal.The effect of low temperature thermal treated Shenfu coals were characterized by FT-IR test,BET test and contact angle experiments to investigate the effect of low temperature thermal treatment on the structure and hydrophobicity of Shenfu coal,and the mechanism for improving the slurrying ability of Shenfu coal by thermal treatment was further discussed.The results suggest that thermal treatment can reduce the polar functional groups of carboxyl and hydroxyl,decrease the specific surface area and increase the average pore size,resulting in the increase of coal surface hydrophobicity.The thermal treatment can improve the slurrying ability of Shenfu coal,The optimized thermal treatment temperature is between 350 ℃ and 400 ℃.Meanwhile,treatment time under certain temperature also affect the slurry viscosity and syneresis rate of Shenfu coal.The effect of treatment time on the slurry viscosity is more significant than that on the syneresis rate at the low temperature.But the effect reverses at the high temperature.The low temperature thermal treatment method not only can improve the slurrying ability of Shenfu coals,but also produce ~3% tars.

参考文献/References:

[1] 尉迟唯,李保庆,李文,等.混合煤制浆对水煤浆性质的影响[J].燃料化学学报,2004,32(1):31-36. YUCHI Wei,LI Bao-qing,LI Wen,et al.Effect of blending various coals on the properties of coal water slurry[J].Journal of Fuel Chemistry and Technology,2004,32(1):31-36.
[2] 尉迟唯,李保庆,李 文,等.煤孔结构特性对水煤浆性质的影响分析[J].燃料化学学报,2006,34(1):5-9. YUCHI Wei,LI Bao-qing,LI Wen,et al.Effect of pore structure on the properties of coal water slurry[J].Journal of Fuel Chemistry and Technology,2006,34(1):5-9.
[3] 刘明强,刘建忠,王睿坤,等.热解温度对褐煤半焦成浆特性影响的实验研究[J].中国电机工程学报,2013,33(8):36-43. LIU Ming-qiang,LIU Jian-zhong,WANG Rui-kun,et al.Effect of pyrolysis temperature on slurry ability of lignite semi-coke[J].Proceedings of the Chinese Society for Electrical Engineering,2013,33(8):36-43.
[4] 李 燕,王智化,梁晓晔,等.全温度段裂解提质对锡盟褐煤成浆特性的影响[J].燃料化学学报,2014,42(2):150-157. LI Yan,WANG Zhi-hua,LIANG Xiao-ye,et al.Influence of pyrolysis temperature on slurry characteristics of Ximeng lignite char[J].Journal of Fuel Chemistry and Technology,2014,42(2):150-157.
[5] Zhu J F,Liu J Z,Shen W J,et al.Improving the slurry ability of Ximeng brown coal by medium-low-temperature thermal treatment[J].Fuel Processing Technology,2014,119:218-227.
[6] Yu Y J,Liu J Z, Wang R K,et al.Effect of hydrothermal dewatering on the slurry ability of brown coals[J].Energy Conversion and Management,2012,57:8-12.
[7] 王爱英,程 军,陈训刚,等.微波改性对水煤浆焦气化的影响规律[J].浙江大学学报,2013,47(2):287-291. WANG Ai-ying,CHENG Jun,CHEN Xun-gang,et al.Effect of microwave modification on char gasification of coal water slurry[J].Journal of Zhejiang University,2013,47(2):287-291.
[8] Ibarra J V,Munoz E,Moliner R.FTIR study of evolution of coal structure during the coalification process[J].Organic Geochemistry,1996,24(6/7):725-735.
[9] 雷 玉.神府煤在不同气氛下的催化热解反应性研究[D].西安:西安科技大学,2010. LEI Yu.Study on reactivity of catalytic pyrolysis of Shenfu coal in different reactive gas[D].Xi'an:Xi'an University of Science and Technology,2010.
[10]王晓春,吴国光,王共远,等.煤与沥青混合制浆的实验研究[J].煤炭转化,2004,27(4):34-37. WANG Xiao-chun,WU Guo-guang,WANG Gong-yuan,et al.Study on the preparation of petroleum asphalt-coal-water slurry[J].Coal Conversion,2004,27(4):34-37.
[11]王军力.神府煤与沥青页岩、天然沥青和焦煤中煤的共热解研究[D].西安:西安科技大学,2011. WANG Jun-li.Study on Co-pyrolysis of Shenfu coal and asphalt shale,natural asphalt and middling coal of coking coal[D].Xi'an:Xi'an University of Science and Technology,2011.
[12]杨 磊,井云环,罗春桃,等.热改质对宁东羊场湾煤成浆性能影响研究[J].煤化工,2014(2):40-42. YANG Lei,JING Yun-huan,LUO Chun-tao,et al.Modification test on the Yangchangwan coal and study on its slurry ability before and after its modification[J].Coal Chemical Industry,2014(2):40-42.
[13]王 娜,朱书全,杨玉立,等.含氧官能团对褐煤热态提质型煤防水性的影响[J].煤炭科学技术,2010,38(3):125-128. WANG Na,ZHU Shu-quan,YANG Yu-li,et al.Oxygen-containing function groups affected to waterproof of thermal upgraded lignite briquettes[J].Coal Science and Technology,2010,38(3):125-128.
[14]陶建红.褐煤中含氧官能团的测定与研究[J].河南化工,2010,27(4):8-10. TAO Jian-hong.Research and measurement on oxygen-containing functional groups in brown coal[J].Henan Chemical Industry,2010,27(4):8-10.
[15]朱学栋,朱子彬,韩崇家,等.煤中含氧官能团的红外光谱定量分析[J].燃料化学学报,1999,27(4):335-339. ZHU Xue-dong,ZHU Zi-bin,HAN Chong-jia,et al.Quantitative determination of oxygen-containing functional groups in coal by FTIR spectroscopy[J].Journal of Fuel Chemistry and Technology,1999,27(4):335-339.
[16]汪广恒.煤-大豆蛋白复合材料的制备和性能研究[D].西安:西安科技大学,2007. WANG Guang-heng.Study on preparation and properties of coal-soy protein composites[D].Xi'an:Xi'an University of Science and Technology,2007.
[17]赵卫东,刘建忠,岑可法,等.低阶煤高温高压水热处理改性及其成浆特性[J].化工学报,2009,60(6):1 560-1 567. ZHAO Wei-dong,LIU Jian-zhong,CEN Ke-fa.et al.Hot water treatment of low rank coal in high temperature and high pressure reactor and its slurry ability[J].Journal of Chemical Industry and Engineering,2009,60(6):1 560-1 567.

备注/Memo

备注/Memo:
基金项目:国家自然科学基金项目(51174279); 陕西省13115科技创新工程(2008ZDKG-53) 通讯作者:宋成建(1987-),男,河南新乡人,博士研究生,E-mail:2631384192@qq.com
更新日期/Last Update: 2015-11-15