Reactivity and stability of Cu-decorated Fe2O3/Al2O3 oxygen carrier for chemical looping combustion

YANG Wei-jin; ZHAO Hai-bo; MEI Dao-feng; ZHENG Chu-guang

Volume 42 Issue 01

Jan. 2014

Turn off MathJax

Article Contents

Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(01): 121-128

YANG Wei-jin, ZHAO Hai-bo, MEI Dao-feng, ZHENG Chu-guang. Reactivity and stability of Cu-decorated Fe2O3/Al2O3 oxygen carrier for chemical looping combustion[J]. Journal of Fuel Chemistry and Technology, 2014, 42(01): 121-128.

Citation:

YANG Wei-jin, ZHAO Hai-bo, MEI Dao-feng, ZHENG Chu-guang. Reactivity and stability of Cu-decorated Fe₂O₃/Al₂O₃ oxygen carrier for chemical looping combustion[J]. Journal of Fuel Chemistry and Technology, 2014, 42(01): 121-128.

Citation:

PDF( 5221 KB)

Reactivity and stability of Cu-decorated Fe₂O₃/Al₂O₃ oxygen carrier for chemical looping combustion

State Key Laboratory of Coal Combustion, Huazhong University of Science & Technology, Wuhan 430074, China

Received Date: 2013-06-23
Rev Recd Date: 2013-08-12
Publish Date: 2014-01-30

Abstract

Abstract

The Fe₂O₃/Al₂O₃ oxygen carrier decorated with 10% Cu was prepared by freezing granulation method; its reactivity and stability for chemical looping combustion was investigated in a thermogravimetric analyzer by alternately exposing the oxygen carrier to reducing and oxidizing conditions to simulate the chemical looping combustion (CLC) process. The results indicated that the Cu-decorated Fe₂O₃/Al₂O₃ oxygen carrier exhibits a good stability during the isothermal redox cycles at 850 and 900 ℃. Although the oxygen carrier is sintered slightly at the beginning of redox cycles at 950 ℃, it is stable in the later cycles. With the increase of the reaction temperature, the oxidation rate of the oxygen carrier increases monotonously, while the oxygen transport capacity and reduction rate decrease first and then increase along with the temperature. Compared with the non-decorated Fe₂O₃/Al₂O₃ oxygen carrier, the Cu-decorated Fe₂O₃/Al₂O₃ oxygen carrier exhibits higher oxygen transport capacity and reduction rate, but lower oxidation rate at 900 ℃; both of them has a good stability during the redox cycles.
- chemical looping combustion,
- oxygen carrier,
- stability,
- Fe₂O₃,
- Cu

FullText(HTML)

References(20)

References

ZHANG Y, CHEN H, CHEN C, PLAZA J M, DUGAS R, ROCHELLE G T. Rate-based process modeling study of CO₂ capture with aqueous monoethanolamine solution[J]. Ind Eng Chem Res, 2009, 48(20): 9233-9246.

YAMASAKI A. An overview of CO₂ mitigation options for global warming-emphasizing CO₂ sequestration options[J]. J Chem Eng Japan, 2003, 36(4): 361-375.

BOLLAND O, UNDRUM H. A novel methodology for comparing CO₂ capture options for natural gas-fired combined cycle plants[J]. Adv Environ Res, 2003, 7(4): 901-911.

RICHTER H J, KNOCHE K F. Reversibility of combustion processes[J]. ACS Symposium Series, 1983, 235(1): 71-85.

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. (JING Hong-guang, WANG Bao-qun. Principle of cascading utilization of chemical energy[J]. Journal of Engineering Thermophysics, 2004, 25(2): 181-184.)

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

MATTISSON T, JERNDAL E, LINDERHOLM C, LYNGFELT A. Reactivity of a spray-dried NiO/NiAl₂O₄ oxygen carrier for chemical-looping combustion[J]. Chem Eng Sci, 2011, 66(20): 4636-4644.

ARJMAND M, AZAD A M, LEION H, MATTISSON T, LYNGFELT A. Evaluation of CuAl₂O₄ as an oxygen carrier in chemical-looping combustion[J]. Ind Eng Chem Res, 2012, 51(43): 13924-13934.

YU Z, LI C, FANG Y, HUANG J, WANG Z. Reduction rate enhancements for coal direct chemical looping combustion with an iron oxide oxygen carrier[J]. Energy Fuels, 2012, 26(4): 2505-2511.

SHULMAN A, CLEVERSTAM E, MATTISSON T, LYNGFELT A. Manganese/iron, manganese/nickel, and manganese/silicon oxides used in chemical-looping with oxygen uncoupling (CLOU) for combustion of methane[J]. Energy Fuels, 2009, 23(10): 5269-5275.

梅道锋, 赵海波, 马兆军, 杨伟进, 方彦飞, 郑楚光. Cu/Co/Mn基氧载体释氧动力学及机理研究[J]. 燃料化学学报, 2013, 41(2): 235-242. (MEI Dao-feng, ZHAO Hai-bo, MA Zhao-jun, YANG Wei-jin, FENG Yan-fei, ZHENG Chu-guang. Oxygen release kinetics and mechanism study on Cu-, Co-, Mn-based oxygen carrier[J]. Journal of Fuel Chemisty and Technology, 2013, 41(2): 235-242.)

王保文, 郑瑛, 柳朝晖, 赵海波, 郑楚光, 晏蓉. 铁基复合氧载体的煤化学链燃烧研究[J]. 工程热物理学报, 2010, 31(8): 1427-1430. (WANG Bao-wen, ZHENG Ying, LIU Zhao-hui, ZHAO Hai-bo, ZHENG Chu-guang, YAN Rong. Inverstigation of chemical looping combustion of coal with Fe₂O₃-based combined oxygen carrier[J]. Journal of Engineering Thermophysics, 2010, 31(8): 1427-1430.)

SIRIWARDANE R, TIAN H, SIMONYI T, POSTON J. Synergetic effects of mixed copper-iron oxides oxygen carriers in chemical looping combustion[J]. Fuel, 2013, 108: 319-333.

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 Chemisty 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.)

HOSSAIN M M, de LASA H I. Reduction and oxidation kinetics of Co-Ni/Al₂O₃ oxygen carrier involved in a chemical-looping combustion cycles[J]. Chem Eng Sci, 2010, 65(1): 98-106.

ADANEZ J, GARCIA L F, de DIEGO L F, GAYAN P, CELAYA J, ABAD A. Nickel-copper oxygen carriers to reach zero CO and H₂ emissions in chemical-looping combustion[J]. Ind Eng Chem Res, 2006, 45(8): 2617-2625.

SAHA C, BHATTACHARYA S. Comparison of CuO and NiO as oxygen carrier in chemical looping combustion of a Victorian brown coal[J]. Int J Hydrogen Energy, 2011, 36(18): 12048-12057.

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 Chemisty and Technology, 2009, 37(5): 513-520.)

ADANEZ J, CUADRAT A, ABAD A, GAYAN P, de DIEGO L F, GARCIA L F. Ilmenite activation during consecutive redox cycles in chemical-looping combustion[J]. Energy Fuels, 2010, 24(2): 1402-1413.

Relative Articles

Supplements(0)

Cited By

Proportional views