基于镍基载氧体的串行流化床煤化学链燃烧实验

顾海明; 吴家桦; 沈来宏; 肖军

基于镍基载氧体的串行流化床煤化学链燃烧实验

1.
东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室, 江苏南京 210096;
2.
中国东方电气集团有限公司中央研究院新能源与发电技术研究所, 四川成都 611731

基金项目: 国家自然科学基金(51276037,50976023);江苏省科技支撑计划(BE2012166);东南大学优秀博士学位论文基金(YBJJ1206)。

详细信息

通讯作者:
沈来宏(1965-), 男, 教授, 主要研究方向为洁净煤燃烧、生物质能利用, E-mail: lhshen@seu.edu.cn, Tel: 025-83795598, Fax: 025-57714489。

中图分类号: TK546
计量
- 文章访问数: 1640
- HTML全文浏览量: 26
- PDF下载量: 588
- 被引次数: 0
出版历程
- 收稿日期: 2012-12-06
- 修回日期: 2013-02-27
- 刊出日期: 2013-06-30

Chemical looping combustion of coal in interconnected fluidized bed with NiO/Al₂O₃ oxygen carrier

1.
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China;
2.
Institute of New Energy and Power Generation Technology, Central Research Institute, Dongfang Electric Corporation, Chengdu 611731, China

摘要

摘要: 以NiO/Al₂O₃为载氧体,在1 kW_th串行流化床反应器上进行了煤化学链燃烧实验,通过四个参数:碳转换效率η_C,coal、煤气化产物的转换效率、碳捕集效率η_C,cap及煤燃烧效率η_combust对煤燃烧过程进行表征,考察了燃料反应器温度t_FR、过量空气系数α、隔离器水煤比S_LS/C、燃料反应器水煤比S_FR/C和热负荷等参数的影响。结果表明,t_FR和S_LS/C的增大有利于煤气化产物的转换;t_FR、α和S_LS/C的增大有助于η_C,coal的提高,随着S_FR/C由0.8增加到1.8,η_C,coal呈先增加再减小的趋势,并在S_FR/C=1.2达到最大值;η_combust和η_C,coal变化趋势保持一致,主要受飞灰含碳量中残碳损失的影响;t_FR提高有助于提高η_C,cap,而α和S_LS/C的增大使得η_C,cap降低。
- 载氧体 /
- 串行流化床 /
- 煤 /
- 化学链燃烧
Abstract: The chemical looping combustion of coal with NiO/Al₂O₃ oxygen carrier was experimentally investigated in a 1 kW_th interconnected fluidized bed. The carbon conversion η_C,coal, the conversion of gaseous products, the carbon capture efficiency η_C,cap and the coal combustion efficiency η_combust were calculated and discussed. Several influencing factors including the temperature t_FR, excess air coefficy α, the ratio of steam flow rate in the loopseal to the feed coal S_LS/C, the ratio of steam flow rate in the fuel reactor to the feed coal S_FR/C were examined. The results indicate that the increase in either t_FR or S_LS/C is favorable for increasing η_C,coal and the conversion of gas products from coal gasification. A larger α can also give a higher η_C,coal. With the S_FR/C increasing from 0.8 to 1.6, η_C,coal first increases and then decreases with the maximum at S_FR/C=1.2. η_combust has the same trends as η_C,coal; it is mainly affected by the loss of carbon in the fly ash. Contrary to α or S_LS/C, increasing T_FR can give a higher η_C,cap.
- oxygen carrier /
- interconnected fluidized beds /
- coal /
- chemical looping combustion

HTML全文

参考文献(22)

金红光, 王宝群. 化学能梯级利用机理探讨[J]. 工程热物理学报, 2004, 25(2): 181-184. (JIN Hong-guang, WANG Bao-qun. Principle of cascading utilization of chemical energy[J]. Journal of Engineering Thermophysics, 2004, 25(2): 181-184.)

DE DIEGO L F, GARCÍA-LABIANO F, ADÁNEZ J, GAYAN P, ABAD A, CORBELLA B M, PALACIOS J M. Development of Cu-based oxygen carriers for chemical-looping combustion[J]. Fuel, 2004, 83(13): 1749-1757.

ABAD A, MATTISSON T, LYNGFELT A, JOHANSSON M. The use of iron oxide as oxygen carrier in a chemical-looping reactor[J]. Fuel, 2007, 86(7/8): 1021-1035.

SHEN L H, WU J H, XIAO J. Experiment on chemical looping combustion of coal with NiO based oxygen carrier[J]. Combus Flame, 2009, 156(3): 721-728.

CHO P, MATTISSON T, LYNGFELT A. Comparison of iron-, nickel-, copper-and manganese-based oxygen carriers for chemical-looping combustion[J]. Fuel, 2004, 83(9): 1215-1225.

郭庆杰, 田红景, 刘永卓. CaSO₄的复合载氧体制备及其反应特性[J]. 太原理工大学学报, 2010, 41(5): 572-576. (GUO Qing-jie, TIAN Hong-jing, LIU Yong-zhuo. Preparation and reactivity behavior of compound CaSO₄ oxygen carrier[J]. Journal of Taiyuan University of Technology, 2010, 41(5): 572-576.)

丁宁, 郑瑛, 罗聪, 吴琪珑, 傅培舫, 郑楚光. 化学链燃烧中CaSO₄复合载氧体的实验研究[J]. 燃料化学学报, 2011, 39(3): 161-168. (DING Ning, ZHENG Ying, LUO Cong, WU Qi-long, FU Pei-fang, ZHENG Chu-guang. Investigation into compound CaSO₄ oxygen carrier for chemical-looping combustion[J]. Journal of Fuel Chemistry and Technology, 2011, 39(3): 161-168.)

王保文, 晏蓉, 郑瑛, 赵海波, 郑楚光. CaSO₄氧载体煤基合成气化学链燃烧模拟研究[J]. 燃料化学学报, 2011, 39(4): 251-257. (WANG Bao-wen, YAN Rong, ZHENG Ying, ZHAO Hai-bo, ZHENG Chu-guang. Simulated investigation of chemical looping combustion with coal-derived syngas and CaSO₄ oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2011, 39(4): 251-257.)

宋涛, 沈来宏, 肖军, 高正平, 顾海明, 张思文. 铁矿石载氧体化学链燃烧高温还原表征[J].燃料化学学报, 2011, 39(8): 567-574. (SONG Tao, SHEN Lai-hong, XIAO Jun, GAO Zheng-ping, GU Hai-ming, ZHANG Si-wen. Characterization of hematite oxygen carrier in chemical-looping combustion at a high reduction temperature[J]. Journal of Fuel Chemistry and Technology, 2011, 39(8): 567-574.)

高正平, 沈来宏, 肖军, 郑敏, 吴家桦. 煤化学链燃烧Fe₂O₃载氧体的反应性研究[J]. 燃料化学学报, 2009, 37(5): 513-520. (GAO Zheng-ping, SHEN Lai-hong, XIAO Jun, ZHENG Min, WU Jia-hua. Analysis of reactivity of Fe-based oxygen carrier with coal during chemical-looping combustion[J]. Journal of Fuel Chemistry and Technology, 2009, 37(5): 513-520.)

顾海明, 沈来宏, 肖军, 张思文, 宋涛. 基于钾基修饰铁矿石载氧体的煤化学链燃烧循环实验[J]. 燃料化学学报, 2012, 40(8): 927-933. (GU Hai-ming, SHEN Lai-hong, XIAO Jun, ZHANG Si-wen, SONG Tao. Cycle experiments on chemical looping combustion of coal using potassium-improved iron ore as oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2012, 40(8): 927-933.)

张思文, 沈来宏, 肖军, 顾海明, 宋涛. 基于碱金属和过渡金属修饰铁矿石载氧体的煤催化燃烧[J]. 燃料化学学报, 2012, 40(10): 1179-1187. (ZHANG Si-wen, SHEN Lai-hong, XIAO Jun, GU Hai-ming, SONG Tao. Catalytic combustion of coal using alkali and transition metals loaded on iron ore oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1179-1187.)

陈定千, 沈来宏, 肖军, 宋涛, 顾海明, 张思文. 基于镍基修饰的铁矿石载氧体煤化学链燃烧实验[J]. 燃料化学学报, 2012, 40(3): 267-272. (CHEN Ding-qian, SHEN Lai-hong, XIAO Jun, SONG Tao, GU Hai-ming, ZHANG Si-wen. Experimental investigation of hematite oxygen carrier decorated with NiO for chemical looping combustion of coal[J]. Journal of Fuel Chemistry and Technology, 2012, 40(3): 267-272.)

黄振, 何方, 李海滨, 赵增立. 天然铁矿石为氧载体的生物质化学链气化制合成气实验研究[J]. 燃料化学学报, 2012, 40(3): 300-308. (HUANG Zhen, HE Fang, LI Hai-bin, ZHAO Zeng-li. Synthesis gas generation by chemical-looping gasification of biomass using natural hematite as oxygen carrier[J]. Journal of Fuel Chemistry and Technology, 2012, 40(3): 300-308.)

ADANEZ J, GAYAN P, CELAYA J, DE DIEGO L F, GARCíA-LABIANO F, ABAD A. Chemical looping combustion in a 10 kW_th prototype using a CuO/Al₂O₃ oxygen carrier: Effect of operating conditions on methane combustion[J]. Ind Eng Chem Res, 2006, 45(17): 6075-6080.

JOHANSSON E, MATTISSON T, LYNGFELT A, THUNMAN H. Combustion of syngas and natural gas in a 300 W chemical-looping combustor[J]. Chem Eng Res Des, 2006, 84(9): 819-827.

SON S R, KIM S D. Chemical-looping combustion with NiO and Fe₂O₃ in a thermobalance and circulating fluidized bed reactor with double loops[J]. Ind Eng Chem Res, 2006, 45(8): 2689-2696.

RYU H J, JIN G T, YI C K. The development of oxygen carrier particles for chemical-looping combustion. Design and operation of a 10 kw chemical-looping combustor. In Proceedings of the 7th International Conference on Greenhouse Gas Control Technologies, Vancouver, Canada, 2004.

KOLBITSCH P, PROLL T, BOLHAR-NORDENKAMPF J, HOFBAUER H. Characterization of chemical looping pilot plant performance via experimental determination of solids conversion[J]. Energy Fuels, 2009, 23(3): 1450-1455.

SHEN L H, WU J H, GAO Z P, XIAO J. Characterization of chemical looping combustion of coal in a 1kW_th reactor with a nickel-based oxygen carrier[J]. Combust Flame, 2010, 157(5): 934-942.

BERGUERAND N, LYNGFELT A. Design and operation of a 10kWth chemical-looping combustor for solid fuels-testing with South African coal[J]. Fuel, 2008, 87(12): 2713-2726.

张思文, 吴家桦, 顾海明, 沈来宏, 肖军. 串行流化床内气体串混特性[J]. 化工学报, 2012, 63(7): 2017-2024. (ZHANG Si-wen, WU Jia-hua, GU Hai-ming, SHEN Lai-hong, XIAO Jun. Gas leakage properties of chemical looping combustion in interconnected fluidized bed[J]. Journal of the Chemical Industry and Engineering Society of China, 2012, 63(7): 2017-2024.)

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1640
HTML全文浏览量: 26
PDF下载量: 588
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

基于镍基载氧体的串行流化床煤化学链燃烧实验

通讯作者:
沈来宏(1965-), 男, 教授, 主要研究方向为洁净煤燃烧、生物质能利用, E-mail: lhshen@seu.edu.cn, Tel: 025-83795598, Fax: 025-57714489。

计量

Chemical looping combustion of coal in interconnected fluidized bed with NiO/Al₂O₃ oxygen carrier

计量

目录

2023年《燃料化学学报（中英文）》评优结果公布！

留言板

基于镍基载氧体的串行流化床煤化学链燃烧实验

通讯作者: 沈来宏(1965-), 男, 教授, 主要研究方向为洁净煤燃烧、生物质能利用, E-mail: lhshen@seu.edu.cn, Tel: 025-83795598, Fax: 025-57714489。

计量

出版历程

Chemical looping combustion of coal in interconnected fluidized bed with NiO/Al2O3 oxygen carrier

计量

出版历程

目录

2023年《燃料化学学报（中英文）》评优结果公布！

通讯作者:
沈来宏(1965-), 男, 教授, 主要研究方向为洁净煤燃烧、生物质能利用, E-mail: lhshen@seu.edu.cn, Tel: 025-83795598, Fax: 025-57714489。

Chemical looping combustion of coal in interconnected fluidized bed with NiO/Al₂O₃ oxygen carrier