羧酸钠对准东煤热解过程的影响

doi:10.11949/j.issn.0438-1157.20160847

化工学报 ›› 2016, Vol. 67 ›› Issue (11): 4795-4801.DOI: 10.11949/j.issn.0438-1157.20160847

羧酸钠对准东煤热解过程的影响

刘辉, 赵登, 姜雷霄, 许连飞, 闫永宏, 吴东阳, 高继慧, 吴少华

哈尔滨工业大学能源科学与工程学院, 黑龙江哈尔滨 150001

收稿日期:2016-06-22 修回日期:2016-07-20 出版日期:2016-11-05 发布日期:2016-11-05
通讯作者: 刘辉(1972-),男,教授,liuhui@hit.edu.cn
基金资助:
国家自然科学基金项目（51476045）。

Effect of sodium carboxylate on pyrolysis of Zhundong coal (H-form coal)

LIU Hui, ZHAO Deng, JIANG Leixiao, XU Lianfei, YAN Yonghong, WU Dongyang, GAO Jihui, WU Shaohua

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China

Received:2016-06-22 Revised:2016-07-20 Online:2016-11-05 Published:2016-11-05
Supported by:
supported by the National Natural Science Foundation of China (51476045).

摘要/Abstract

摘要：

将酸洗后的准东煤（H-form coal）进行离子交换得到含羧酸钠的离子交换煤（Na-form coal），再次酸洗脱钠得到的二次酸洗煤（H-form-1 coal）作为对照试样，在固定床反应器上进行热解。借助便携式气体分析仪、热重分析仪和红外光谱仪研究总挥发分和焦油产率、热解气体组分、焦炭反应活性以及焦炭官能团的变化。研究表明：温度高于600℃时，羧酸钠会减小挥发分产率，抑制CH₄、C₂H₄、C₂H₆气体的产生，高于800℃时促进了CO的生成；羧酸钠抑制了焦油的生成且在700℃时抑制作用最为明显；羧酸钠显著提高了焦炭的反应活性，700℃时效果更为明显。羧酸钠的存在对热解过程中煤焦官能团有显著影响。

关键词: 准东煤, 离子交换, 热解, 反应, 活性

Abstract:

A Na⁺-exchanged coal (Na-form coal) containing sodium carboxylate, was prepared by ion exchange of an acid-washed Zhunong coal (H-form coal). A H-form-1 coal, prepared from the acid-washing of Na-form coal, was set as a blank. Pyrolysis of the two samples was performed in a fixed-bed reactor. The portable infrared gas analyzer, FTIR and thermogravimetric analyzer were employed to investigate the composition and yields of volatiles, the decomposed components, the variation of functional groups and the char reactivity. It shows that, in presence of sodium carboxylate the production rates of volatiles and release of CH₄, C₂H₄ and C₂H₆ were inhibited when temperature was above 600℃, while the production of CO was promoted at temperature above 800℃. Besides, the tar yield is remarkably inhibited at 700℃. The char reactivity was significantly improved due to sodium carboxylate especially at 700℃. The presence of sodium carboxylate in coal greatly affects the variation of functional groups during the pyrolysis.

Key words: Zhundong coal, ion exchange, pyrolysis, reaction, reactivity

中图分类号:

TQ523.3

刘辉, 赵登, 姜雷霄, 许连飞, 闫永宏, 吴东阳, 高继慧, 吴少华. 羧酸钠对准东煤热解过程的影响[J]. 化工学报, 2016, 67(11): 4795-4801.

LIU Hui, ZHAO Deng, JIANG Leixiao, XU Lianfei, YAN Yonghong, WU Dongyang, GAO Jihui, WU Shaohua. Effect of sodium carboxylate on pyrolysis of Zhundong coal (H-form coal)[J]. CIESC Journal, 2016, 67(11): 4795-4801.

参考文献 23

[1]	张守玉, 陈川, 施大钟, 等. 高钠煤燃烧利用现状[J]. 中国电机工程学报, 2013, 33(5):1-12. ZHANG S Y, CHEN C, SHI D Z, et al. Situation of combustion utilization of high sodium coal[J]. Proceedings of the CSEE, 2013, 33(5):1-12.
[2]	VARGAS S, FRANDSEN F, DAM-JOHANSEN K. Rheological properties of high-temperature melts of coal ashes and other silicates[J]. Progress in Energy and Combustion Science, 2001, 27(3):237-429.
[3]	QUYN D M, WU H, HAYASHI J I, et al. Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal (Ⅳ):Catalytic effects of NaCl and ion-exchangeable Na in coal on char reactivity[J]. Fuel, 2003, 82(5):587-593.
[4]	卫小芳, 刘铁峰, 黄戒介, 等. 高钠煤及其洗煤的气化反应研究[J]. 煤炭转化, 2008, 31(3):10-13. WEI X F, LIU T Z, HUANG J J, et al. Study on the gasification reactivity of high-sodium coal and washed coals[J]. Coal Conversion, 2008, 31(3):10-13.
[5]	刘辉, 许连飞, 朱书骏, 等. 水溶钠对准东煤快速热解煤焦燃烧特性的影响[J]. 煤炭学报, 2016, 41(5):1259-1265. LIU H, XU L F, ZHU S J, et al. Effects of water-soluble sodium on combustion characteristics of Zhundong rapidly pyrolyzed coal char[J]. Journal of China Coal Society, 2014, 42(10):1259-1265.
[6]	SATHE C, PANG Y, LI C Z. Effects of heating rate and ion-exchangeable cations on the pyrolysis yields from a Victorian brown coal[J]. Energy & Fuels, 1999, 13(3):748-755.
[7]	LI C Z, SATHE C, KERSSHAW J, et al. Fates and roles of alkali and alkaline earth metals during the pyrolysis of a Victorian brown coal[J]. Fuel, 2000, 79(3):427-438.
[8]	陈川, 张守玉, 刘大海, 等. 新疆高钠煤中钠的赋存形态及其对燃烧过程的影响[J]. 燃料化学学报, 2013, 41(7):832-838. CHEN C, ZHAO S Y, LIU D H, et al. Existence form of sodium in high sodium coals from Xinjiang and its effect on combustion process[J]. Journal of Fuel Chemistry and Technology, 2013, 41(7):832-838.
[9]	LI C Z. Advances in the Science of Victorian Brown Coal[M]. Oxford:Elsevier, 2004:39-42.
[10]	翁青松, 王长安, 车得福, 等. 准东煤碱金属赋存形态及对燃烧特性的影响[J]. 燃烧科学与技术, 2014, 20(3):216-221. WENG Q S, WANG C A, CHE D F, et al. Alkali metal occurrence mode and its influence on combustion characteristics in Zhundong coals[J]. Journal of Fuel Chemistry and Technology, 2014, 20(3):216-221.
[11]	LI C Z. Some recent advances in the understanding of the pyrolysis and gasification behaviour of Victorian brown coal[J]. Fuel, 2007, 86(12/13):1664-1683.
[12]	SCHAFER H N S. Carboxyl groups and ion exchange in low-rank coals[J]. Fuel, 1970, 49(2):197-213.
[13]	回瑞华, 关崇新, 侯冬岩. 羧酸及其盐红外光谱特性的研究[J]. 鞍山师范学院学报, 2001, 3(1):95-98. HUI R H, GUAN C X, HOU D Y. Study on IR characteristics of carboxylic acid and their salts[J]. Journal of Anshan Normal University, 2001, 3(1):95-98.
[14]	谢庆兰, 王明德, 陈立, 等. 羧酸三环己基锡盐的合成和结构分析[J]. 化学学报, 1988, 46(8):831-835. XIE Q L, WANG M D, CHEN L, et al. Synthesis and structure analysis of tricyclohexyltin carboxylates[J]. Acta Chimica Sinica, 1988, 46(8):831-835.
[15]	LI C Z, BARTLE K D, KANDIYOTI R. Characterization of tars from variable heating rate pyrolysis of maceral concentrates[J]. Fuel, 1993, 72(1):3-11.
[16]	QUYN D M, WU H, BHATTACHARYA S P, et al. Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal (Ⅱ):Effects of chemical form and valence[J]. Fuel, 2002, 81(2):151-158.
[17]	LAHAYE J, EHRBURGER P. Fundamental Issues in Control of Carbon Gasification Reactivity[M]. Netherlands:Springer Netherlands, 1991:39-40.
[18]	MENG F, YU J, TAHMASEBI A, et al. Characteristics of chars from low-temperature pyrolysis of lignite[J]. Energy & Fuels, 2013, 28(1):275-284.
[19]	XU W, TOMITA A. Effect of temperature on the flash pyrolysis of various coals[J]. Fuel, 1987, 66(5):632-636.
[20]	朱学栋, 朱子彬, 韩崇家, 等. 煤的热解研究(Ⅲ):煤中官能团与热解生成物[J]. 华东理工大学学报, 2000, 26(1):15-17. ZHU X D, ZHU Z B, HAN C J, et al. Fundamental study of coal pyrolysis (Ⅲ):Functional group and pyrolysis products[J]. Journal of East China University of Science and Technology, 2000, 26(1):15-17.
[21]	TYLER R J. Flash pyrolysis of coals:devolatization of a Victorian brown coal in a small fluidized bed reactor[J]. Fuel, 1979, 58(9):680-686.
[22]	OTAKE Y, JR P L W. Pyrolysis of demineralized and metal cation loaded lignites[J]. Fuel, 1993, 72(2):139-149.
[23]	YAWS C L. Chemical Properties Handbook:Physical, Thermodynamics, Engironmental Transport, Safety & Health Related Properties for Organic & Inorganic Chemica[M]. New York:Journal of Water Resource and Protection, 1999:432-433.

羧酸钠对准东煤热解过程的影响

Effect of sodium carboxylate on pyrolysis of Zhundong coal (H-form coal)

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