水蒸气气氛煤中温催化气化动力学研究

王西明; 王兴军; 陈凡敏; 刘海峰; 于广锁; 王辅臣

水蒸气气氛煤中温催化气化动力学研究

王西明¹,
王兴军^1,2,,
陈凡敏¹,
刘海峰^1,2,
于广锁^1,2,
王辅臣^1,2

1.
华东理工大学煤气化及能源化工教育部重点实验室, 上海 200237;
2.
上海煤气化工程技术研究中心, 上海 200237

基金项目: 国家重点基础研究发展规划(973计划, 2010CB227000)。

详细信息

通讯作者:
王兴军,E-mail:wxj@ecust.edu.cn,Tel:021-64250734。

中图分类号: TK16
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- 被引次数: 0
出版历程
- 收稿日期: 2013-03-25
- 修回日期: 2013-05-02
- 刊出日期: 2013-10-30

Catalytic gasification kinetics of coal with steam at mid-temperature

1.
Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science & Technology, Shanghai 200237, China;
2.
Shanghai Engineering Research Center of Coal Gasification, Shanghai 200237, China

摘要

摘要: 以碳酸钾为催化剂,用热天平的等温热重法研究了四种不同变质程度煤焦常压下水蒸气催化气化反应动力学。在加和不加碳酸钾条件下,测定了温度为700~850℃煤焦的化学反应控制条件下的碳转化率与时间的关系。碳酸钾催化剂的加入对变质程度越高煤的气化催化作用越大。加碳酸钾的碳转化率与时间的关系用混合模型和修正随机孔模型可以良好的拟合关联,均相模型关联较差。利用修正随机孔模型拟合关联出了四种煤焦催化水蒸气气化反应的活化能和指前因子,活化能为90.317~167.861kJ/mol,指前因子和活化能之间具有补偿效应。
- 煤 /
- 催化气化 /
- 水蒸气 /
- 动力学
Abstract: The steam gasification kinetics of four different metamorphosed coals at mid-temperature (700~850℃) using potassium carbonate as catalyst was investigated with the isothermal thermogravimetric analysis under ambient pressure. The results show that the catalysis is greater for the high metamorphosed coal gasification. The integrated model and modified random pore model are good to correlate the relationships between carbon conversion and time for the case with potassium carbonate catalyst. However, the volumetric reaction model is poor in the fitting of data. The activity energy and pre-exponential factor were predicted from the modified random pore model. The activity energy of coal char catalytic gasification ranges from 90.317~167.861 kJ/mol. And there are compensation effects between reaction activity energy and pre-exponential factor.
- coal /
- catalytic gasification /
- steam /
- kinetics

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参考文献(16)

唐宏青. 现代煤化工新技术[M]. 北京: 化学工业出版社, 2009.

(TANG Hong-qing. New technologies of modern coal chemical industry[M]. Beijing: Chemical Industry Press, 2009.)

许慎启, 周志杰, 杨帆, 于广锁, 于遵宏. 神府煤焦与CO₂的气化反应动力学分析[J]. 中国电机工程学报, 2009, 29(2): 41-46.

(XU Shen-qi, ZHOU Zhi-jie, YANG Fan, YU Guang-suo, YU Zun-hong. Analysis on gasification reaction kinetics of Shenfu char gasified by CO₂[J]. Proceedings of the CSEE, 2009, 29(2): 41-46.)

ZHANG Y, HARA S, KAJITANI S, ASHIZAWA M. Modeling of catalytic gasification kinetics of coal char and carbon[J]. Fuel, 2010, 89(1): 152-157.

张泽凯, 王黎, 刘业奎, 冯霄. 氯化钾催化气化煤的等温动力学研究[J]. 西安交通大学学报, 2003, 37(9): 954-961.

(ZHANG Ze-kai, WANG Li, LIU Ye-kui, FENG Xiao. Catalytic gasification kinetics of coal by KCl with carbon dioxide[J]. Journal of Xi'an Jiaotong University, 2003, 37(9): 954-961.)

林驹, 张济宇, 钟雪晴. 纸浆黑液对福建无烟煤水蒸气催化气化的动力学和补偿效应[J]. 化工学报, 2009, 60(4): 905-911.

(LIN Ju, ZHANG Ji-yu, ZHONG Xue-qing. Kinetics and compensation effects of steam gasification of Fujian anthracite using black liquor as catalyst[J]. Journal of Chemical Industry and Engineering, 2009, 60(4): 905-911.)

战书鹏, 王兴军, 洪冰清, 于广锁, 王辅臣. 褐煤催化加氢气化实验[J]. 燃料化学学报, 2012, 40(1): 8-14.

(ZHAN Shu-peng, WANG Xing-jun, HONG Bing-qing, YU Guang-suo, WANG Fu-chen. Experimental study on catalytic hydrogasification of lignite[J]. Journal of Fuel Chemistry and Technology, 2012, 40(1): 8-14.)

DENNIS J S, SCOTT S A, HAYHURST A N. In situ gasification of coal using steam with chemical looping: A technique for isolating CO₂ from burning a solid fuel[J]. J Energy Inst, 2006, 79(3): 187-190.

林荣英, 张济宇. 高变质程度无烟煤热天平水蒸气催化气化动力学碳酸钠催化剂[J]. 化工学报, 2006, 57(10): 2309-2318.

(LIN Rong-ying, ZHANG Ji-yu. Catalytic gasification kinetics of high metamorphosed anthracites by steam in thermogravity (I) With sodium carbonate as catalyst[J]. Journal of Chemical Industry and Engineering, 2006, 57(10): 2309-2318.)

HAO L, CHUNHUA L, MASAHIRO K, SHIGERU K, TOSHINORI K. Unification of gasification kinetics of char in CO₂ at elevated temperatures with a modified random pore model[J]. Energy Fuels, 2003, 17(4): 961-970.

李淑芬, 陈彦伶. 五台型煤焦CO₂催化气化的补偿效应[J]. 天津大学学报, 1996, 29(2): 259-264.

(LI Shu-fen, CHEN Yan-ling. The compensation effect of Wu tai shaped char CO₂ catalytic gasification[J]. Journal of Tianjin University, 1996, 29(2): 259-264.)

林荣英, 张济宇. 低活性无烟煤二氧化碳催化气化动力学-热天平等温热重法[J]. 化工学报, 2005, 56(12): 2332-2341.

(LIN Rong-ying, ZHANG Ji-yu. Catalytic gasification kinetics of low activity anthracites with carbon dioxide-Isothermal thermogravimetric analysis[J]. Journal of Chemical Industry and Engineering, 2005, 56(12): 2332-2341.)

谢克昌. 煤结构与反应性[M]. 北京: 科学出版社, 2002: 290-291.

(XIE Ke-chang. Coal structure and its reactivity[M]. Beijing: Science Press, 2002: 290-291.)

张济宇. 福建无烟粉煤催化气化的工业化前景[J]. 煤炭转化, 1999, 22(2): 28-32.

(ZHANG Ji-yu. Industrialized prospect for the catalytic gasification of Fujian pulverized anthracite[J]. Coal Conversion, 1999, 22(2): 28-32.)

张济宇, 林驹, 黄文沂, 朱跃资, 林建. 福建无烟粉煤催化气化[J]. 燃料化学学报, 1999, 27(3): 238-245.

(ZHANG Ji-yu, LIN Ju, HUANG Wen-ji, ZHU Yue-zi, LIN Jian. Catalytic gasification of pulverized Fujian anthracite in fludized beds[J]. Journal of Fuel Chemistry and Technology, 1999, 27(3): 238-245.)

林驹, 张济宇, 曾才, 朱跃资. 福建无烟粉煤流化床混合气催化气化表观动力学的研究[J]. 燃料化学学报, 2000, 28(6): 485-491.

(LIN Ju, ZHANG Ji-yu, ZENG Cai, ZHU Yue-zi. Apparent kinetics of catalytic gasification on pulverized Fujian anthracite with mixing gas in fludized beds[J]. Journal of Fuel Chemistry and Technology, 2000, 28(6): 485-491.)

刘鑫. 热处理及金属活化对石油焦气化过程的影响研究[D]. 上海: 华东理工大学, 2012.

(LIU Xin. The research of the influence of pyrolysis and metal on petroleum coke gasification reactivity[D]. Shanghai: East China University of Science and Technology, 2012.)

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