松木屑与褐煤共气化的TG-FTIR实验研究

李少华; 张学斌; 车德勇

松木屑与褐煤共气化的TG-FTIR实验研究

1.
中国大唐集团科学技术研究院, 北京 100033;
2.
东北电力大学能源与动力工程学院, 吉林吉林 132012

基金项目: 吉林省产业技术研究与开发专项资金项目（2009030）；中国电机工程学会电力青年科技创新项目。

详细信息

通讯作者:
李少华（1957- ），男，教授，Tel：13843221652；E-mail：46394860@qq.com.

中图分类号: TQ54
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- 被引次数: 0
出版历程
- 收稿日期: 2013-08-02
- 修回日期: 2013-10-30
- 刊出日期: 2014-02-28

TG-FTIR experimental study on co-gasification of pine sawdust and lignite

1.
China Datang Corporation, Beijing 100033, China;
2.
School of Energy and Power Engineering, Northeast Dianli University, Jilin 132012, China

摘要

摘要: 利用TG-FTIR对松木屑、褐煤及其混合物的共气化过程及气化产物进行了分析，研究了掺混比例、升温速率以及反应气氛对共气化过程的影响。结果表明，松木屑加入后提高了试样的反应活性，随松木屑比例增加，气化失重速率逐渐降低，CO的开始析出温度及析出峰面积A_CO呈降低趋势；较低的升温速率有利于CO和CH₄的析出，随着升温速率的增加，DTG曲线向高温侧移动，最大失重速率显著增加，褐煤热解对应的峰逐渐消失；CO₂气氛对挥发分析出阶段的失重行为影响不明显；空气气氛时挥发分析出阶段的两个失重峰分别对应挥发分的燃烧和固定碳燃烧，该气氛下没有明显的焦炭气化阶段。
- 松木屑 /
- 褐煤 /
- 共气化 /
- TG-FTIR /
- 气化产物
Abstract: The TG-FTIR anaylsis technology was applied to analyze the co-gasification process and gasification products of pine sawdust, lignite and their mixtures. The influence of mixing ratio, heating rate and reaction atmosphere on the co-gasification process was also studied. The results show that the pine sawdust can improve the reactivity of samples. As the mixing ratio of pine sawdust is increasing, the mass loss rate of gasification decreases, and the beginning temperature and the peak area of CO formation have a decreasing tendency. It is found that the lower heating rate is advantageous to the formation of CO and CH₄. With increasing the heating rate, the DTG curves move to higher temperature ranges, the maximum weight loss rate increases, and the pine sawdust peak disappears. The effect of CO₂ atmosphere on the weight loss of devolatilization is not significant. The two peaks of devolatilization are corresponding to the volatile combustion and fixed carbon combustion in air, and the coke gasification is not significant in the atmosphere of air.
- pine sawdust /
- lignite /
- co-gasification /
- TG-FTIR /
- gasification products

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参考文献(16)

步学朋, 王鹏, 忻仕河. 煤炭气化多联产生产代用天然气分析[J]. 煤化工, 2007, 11(6): 4-7. (BU Xue-peng, WANG Peng, XIN Shi-he. Analysis of coal gasification/poly-generation to produce Substitute Natural Gas (SNG)[J]. Coal Chemical Industry, 2007, 11(6): 4-7.)

姜英, 涂华. 我国商品褐煤低位发热量回归式的推导[J]. 煤炭学报, 2004, 29(4): 477-480. (JIANG Ying, TU Hua. Equations of calculating calorific value of lignite in China[J].Journal of China Coal Society, 2004, 29(4): 477-480.)

程世庆, 尚琳琳. 生物质的热解过程及其动力学规律[J]. 煤炭学报, 2006, 31(4): 501-505. (CHENG Shi-qing, SHANG Lin-lin.The pyrolysis characteristics of biomass and its dynam ics law[J]. Journal of China Coal Society, 2006, 31(4): 501-505.)

闵凡飞, 张明旭. 新鲜生物质催化热解气化制富氢燃料气的试验研究[J]. 煤炭学报, 2006, 31(5): 649-653. (MIN Fan-fei, ZHANG Ming-xu. Trial study on catalytic pyrolysis gasification of fresh biomass to produce hydrogen rich gas[J]. Journal of China Coal Society, 2006, 31(5): 649-653.)

FASINA O, LITTLEFIELD B. TG-FTIR analysis of pecan shells thermal decomposition[J]. Fuel Process Technol, 2012, 102: 61-66.

BASSILAKIS R, CARANGELO R M. TG-FTIR analysis of biomass pyrolysis[J]. Fuel, 2001, 80(12): 1765-1786.

WÓJTOWICZ M A, BASSILAKIS R. Modeling the evolution of volatile species during tobacco pyrolysis[J]. J Anal Appl Pyrolysis, 2003, 66(1/2): 235-261.

阎维平, 陈吟颖. 生物质混合物与煤共热解的协同特性[J]. 中国电机工程学报, 2007, 27(2): 80-86. (YAN Wei-ping, CHEN Yin-ying. Interaction performance of Co-pyrolysis of biomass mixture and coal of different rank[J]. Proceedings of the CSEE, 2007, 27(2): 80-86.)

LIU X G, LI B Q. Theoretical elucidation of distributed activation energy model and ITS applications in char gasification[J]. Journal of Fuel Chemistry and Technology, 2001, 29(1): 54-59.)

ARENILLAS A, RUBIERA F. Influence of char structure on reactivity and nitric oxide emissions[J]. Fuel Process Technol, 2002, 77: 103-109.

CETIN E, MOGHTADERIB B, GUPTA R. Influence of pyrolysis conditions on the structure and gasification reactivity of biomass chars[J]. Fuel, 2004, 83(16): 2139-2150.

VLADIMIR VAND. A theory of the irreversible electrical resistance changes of metallic films evaporated in vacuum[J]. Proc Phys Soc, 1943, 55(3): 222-246.

向银花, 王洋. 煤气化动力学模型研究[J]. 燃料化学学报, 2002, 30(1): 21-26. (XIANG Yin-hua, WANG Yang. A study on kinetic models of char gasification[J]. Journal of Fuel Chemistry and Technology, 2002, 30(1): 21-26.)

贾相如, 金保升. 污水污泥热解和燃烧特性的实验研究[J]. 锅炉技术, 2005, 36(6): 39-42. (JIA Xiang-ru, JIN Bao-sheng. An analysis of the reason for the break of the fire-resistant material on circulating fluidize bed boiler[J]. Boiler Technology, 2005, 36(6): 39-42.)

WANG Q, ZHAO W, LIU H. Interactions and kinetic analysis of oil shale semi-coke with cornstalk during Co-combustion[J]. Appl Energy, 2011, 88(6): 2080-2087.

BIAGINI E, LIPPI F, PETARCA L. Devolatilization rate of biomasses and coal-biomass blends: An experimental investigation[J]. Fuel, 2002, 81(8): 1041-1050.

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