全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2015 

低浓度甲烷在微小燃烧器中的催化燃烧实验

DOI: 10.11949/j.issn.0438-1157.20150315, PP. 216-221

Keywords: 催化剂载体,催化剂,低浓度,甲烷,催化燃烧,微小燃烧器

Full-Text   Cite this paper   Add to My Lib

Abstract:

选用泡沫金属(Fe-Ni)作为催化剂载体,通过浸渍法制备了整体式催化剂(Pd/Al2O3/Fe-Ni)。然后使用该泡沫金属载体整体式催化剂在微小燃烧器中对低浓度甲烷进行催化燃烧实验,分析了燃烧器温度、甲烷浓度以及流量对甲烷转化率的影响。结果表明,随着燃烧反应器内温度的升高,混合气体总流量的降低和甲烷浓度的增大,甲烷的转化率增大;进一步分析表明温度是影响转化率最关键的因素,当燃烧反应器内温度为550℃,甲烷浓度为5%,总流量为50ml·min-1时,甲烷的转化率可以达到98.7%。

References

[1]  Ciambelli P, Palma V, Palo E. Comparison of ceramic honeycomb monolith and foam as Ni catalyst carrier for methane autothermal reforming [J]. Catalysis Today, 2010, 155(1/2): 92-100.
[2]  Ribeiroa F, Silvab J M, Silvaa E, Vazc M F, Oliveirad A C. Catalytic combustion of toluene on Pt zeolite coated cordierite foams [J]. Catalysis Today, 2011, 176 (1): 93-96.
[3]  Banus E D, Milt V G, Miro E E, Ulla M A. Co, Ba, K/ZrO2 coated onto metallic foam (AISI 314) as a structured catalyst for soot combustion: coating preparation and characterization [J]. Applied Catalysis A: General, 2010, 379(1/2): 95-104.
[4]  Spadaccini C M, Zhang X, Cadou C P, Miki N, Waitz I A. Preliminary development of a catalytic silicon micro-combustor for hydrocarbon-fueled power MEMS [J]. Sensors and Actuators A, 2003, 103(1/2): 219-224.
[5]  Spadaccini C M, Peck J W, Waitz I A. Catalytic combustion systems for micro-scale gas turbine engines [J]. Journal of Engineering for Gas Turbines and Power, 2007, 129(1): 49-60.
[6]  Yin J, Su S, Yu X X, Weng Y W. Thermodynamic characteristics of a low concentration methane catalytic combustion gas turbine [J]. Applied Energy, 2010, 87(6): 2102-2108.
[7]  Thompson C R, Marin P, Diez F V, Ordonez S. Evaluation of the use of ceramic foams as catalyst supports for reverse-flow combustors [J]. Chemical Engineering Journal, 2013, 221: 44-54.
[8]  Shi S, Jenny A. Catalytic combustion of coal mine ventilation air methane [J]. Fuel, 2006, 85(9): 1201-1210.
[9]  Zhang Y G, Qin Z F, Wang G F, et al. Catalytic performance of MnOx-NiO composite oxide in lean methane combustion at low temperature [J]. Applied Catalysis B: Environmental, 2013, 129: 172-181.
[10]  Pu Ge(蒲舸), Li Wenjun(李文俊), Yan Yunfei(闫云飞). Numerical simulation of catalytic combustion of extremely low concentration CH4 [J]. Journal of Chongqing University (重庆大学学报), 2010, 33(4): 60-64.
[11]  Yang Zhongqing(杨仲卿), Zhang Li(张力), Tang Qiang(唐强), Pu Ge(蒲舸). Experimental and numerical study on ultra-low concentration coal bed methane combustion in a fluidized bed [J]. Journal of Engineering Thermophysics(工程热物理学报), 2011, 32 (11): 1979-1981.
[12]  Yang Zhongqing(杨仲卿), Zhang Li(张力), Zheng Shiwei(郑世伟), et al. Flow characteristic of ultra-low concentration methane catalytic combustion in a fluidized bed [J]. Journal of Engineering Thermophysics (工程热物理学报), 2013, 34 (3): 484-487.
[13]  Kaisare N S, Vlachos D G. A review on microcombustion: fundamentals, devices and applications [J]. Progress in Energy and Combustion Science, 2012, 38(3): 321-359.
[14]  Wierzbicki T A, Lee I C, Gupta A K. Combustion of propane with Pt and Rh catalysts in a meso-scale heat recirculating combustor [J]. Applied Energy, 2014, 130: 350-356.
[15]  Yuan W, Deng J, Zhou B, Zhang Z C, Tang Y. Performance of a catalytic micro-combustor based on Pt/Al2O3/Ni for methanol fuel cell application [J]. Chemical Engineering Journal, 2014, 251: 51-57.
[16]  Yan Yunfei(闫云飞), Ma Meng(马盟), Zhang Li(张力). Numerical simulation of catalytic conversion efficiency of CH4 in annular micro-chamber [J]. Journal of Chongqing University(重庆大学学报), 2008, 31(3): 267-270.
[17]  Zhong Beijing(钟北京), Hong Zekai(洪泽凯). Numerical simulation of catalytic combustion of CH4 in a microburner [J]. Journal of Engineering for Thermal Energy and Power(热能动力工程), 2003, 18(3): 584-588.
[18]  Zhong Beijing(钟北京), Wu Heng(伍亨). Numerical simulation of methane catalytic combustion in micro-burner with counterflow heat exchanger [J]. Journal of Engineering Thermophysics(工程热物理学报), 2005, 26(2): 351-353.
[19]  Barbato P S, Landi G, Pirone R, et al. Auto-thermal combustion of CH4 and CH4-H2 mixtures over Bi-functional Pt-LaMnO3 catalytic honeycomb [J]. Catalysis Today, 2009, 147: S271-S278.
[20]  Smyth S A, Kyritsis D C. Experimental determination of the structure of catalytic micro-combustion flows over small-scale flat plates for methane and propane fuel [J]. Combustion and Flame, 2012, 159(2): 802-816.
[21]  Zeng S H, Su H Q, Liu Y, Wang Yan, Wang Dongfang. CuO-CeO2/Al2O3/FeCrAl monolithic catalysts prepared by in situ combustion synthesis method for preferential oxidation of carbon monoxide [J]. Journal of Rare Earths, 2011, 29(1): 69-73.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133