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LaMeAl11O19催化剂上生物质气化气体燃料的催化燃烧

, PP. 105-111

Keywords: 共沉淀,过渡金属离子取代,六铝酸盐,催化燃烧,生物质气化产物

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Abstract:

用共沉淀法制备一系列六铝酸盐催化剂样品(LaMeAl11O19,Me?Mn、Fe、Co、Ni、Ni、Ce),采用X-射线衍射(X-raydiffraction,XRD)、比表面积测试法(Brunauer-Emmett-Teller,BET)和X-射线光电子能谱(X-rayphotoelectronspectrometry,XPS)等方法对样品结构进行表征,并通过生物质气化气中可燃气体成分(CH4/CO/H2)的模拟燃烧试验,考察不同过渡金属离子取代对催化剂结构特征及催化燃烧活性的影响。利用原位红外(in-situDRIFT)方法研究了气体在催化剂表面反应的机制。结果表明,焙烧后催化剂形成具有相同的MP结构、但化学组分不同的六铝酸盐,且具有较大的比表面积。LaMeAl11O19催化剂对模拟生物质气化气中可燃成分燃烧均具有一定的催化活性,添加Mn离子时催化剂对甲烷的催化燃烧活性最好。各可燃气体起燃温度自低至高为CO、H2、CH4。150℃时CO已在催化剂表面发生吸附,250℃出现气相CO2的吸附峰,同时检测到反应气中H2被催化剂内部晶格氧所氧化生成的水分子吸附峰。气相CH4的吸附峰在反应开始(150℃)时就已形成,其强度和位置不随温度和时间变化。

References

[1]  Magnus Johansson. Catalytic combustion of gasified biomass for gas turbine applications[D]. Stockholm:Royal Institute of Technology, 1998.
[2]  Lietti L,Cristiani C,Groppi G,et al. Preparation,characterization and reactivity of Me-hexaaluminate (Me=Mn,Co,Fe,Ni,Cr) catalysts in the catalytic combustion of NH3-containing gasified biomasses [J]. Catalysis Today, 2000,59(1-2):191-204.
[3]  尹娟,翁一武. 贫燃催化燃烧燃气轮机的燃烧与系统性能分析[J]. 中国电机工程学报, 2010,30(11):1-7. Yin Juan,Weng Yiwu.Investigation of combustion and systematic performance of a gas turbine system with lean burn catalytic combustion chamber[J].Proceedings of the CSEE,2010,30(11)
[4]  李志荣,赵津. 催化燃烧技术机理及其研究进展初探[J]. 科技情报开发与经济, 2005,15(15):163-164. Li ZhiRong,Zhao Jin.Probe into the mechanism of the catalytic combustion technique and its research progress [J].Sci/tech Information Development & Economy,2005,15(15)
[5]  Groppi G,Cristiani C,Forzatti P. Preparation,characterisation and catalytic activity of pure and substituted La-hexaaluminate systems for high temperature catalytic combustion[J]. Applied Catalysis B:Environmental, 2001,35(2):137-148.
[6]  孙路石,秦晓楠,逄鹏,等. La/Mn 改性Pd/γ-Al2O3 催化剂对甲烷催化燃烧的影响[J]. 中国电机工程学报, 2009,29(11):26-31. Sun Lushi,Qin XiaoNan,Pang Peng,et al.Influence of Pd/γ-Al2O3 catalyst modified by La/Mn on methane catalytic combustion[J].Proceedings of the CSEE,2009,29(11)
[7]  赵丽娜,崔运成,王庆伟. 新型材料六铝酸盐LaMAl11O19-?的合成及催化性能[J]. 化工进展, 2008,27(8):1240-1245. Zhao Lina,Cui Yuncheng,Wang Qingwei.Synthesis and catalytic properties hexaaluminate LaMAl11O19-? [J].Chemical Industry and Engineering Progress,2008,27(8)
[8]  孙路石,孔继红,向军,等. 负载型钯催化剂上生物质气化气催化燃烧[J]. 燃料化学学报, 2010,38(6):679-683. Sun Lushi,Kong Jihong,Xiang Jun,et al.Catalytic combustion of gasified biomass over supported palladium catalysts[J].Journal of Fuel Chemistry and Technology,2010,38(6)
[9]  Ersson A,Persson K,Adu I K,et al. A comparison between hexaaluminates and perovskites for catalytic combustion applications[J]. Catalysis Today, 2006,112(1-4):157-160.
[10]  Ku?ar H M J,Ersson A G,J?r?s S G. Catalytic combustion of gasified refuse-derived fuel[J]. Applied Catalysis B:Environmental, 2003,45(1):1-11.
[11]  Kenji T,Yuka H,Eiji S. XPS studies on the oxygen species of LaMn1-xCuxO3+λ[J]. Applied Catalysis A:Gerenal, 1998,170(2):245-254.
[12]  徐占林,崔运成,李青仁,等. ABAl11O19-δ的制备和对CH4+CO2制合成气反应的催化性能[J]. 松辽学刊:自然科学版, 2002,2(1):14-17. Xu Zhanlin,Cui Yuncheng,Li Qingren,et al.Preparation and catalytic properties of ABAl11O19-δ for CH4+CO2 reaction to synthesis gas[J].Songliao Journal
[13]  Holmgren A,Andersson B. Oxygen storage dynamics in Pt/CeO2/Al2O3 catalysts[J]. Journal of Catalysis, 1998,178(1):14-25.
[14]  Witton J J,Noordally E,Przybylski J M. Clean catalytic combustion of low heat value fuels from gasification processes[J]. Chemical Engineering Journal, 2003,91(2-3):115-121.
[15]  Chao Y C,Chen G B,HsuH W. Catalytic ignition of multi-fuels on platinum:effect of strain rate[J]. Catalysis Today, 2003,83(1-4):97-113.
[16]  Cimino S,Di Benedetto A,Pirone R,et al. CO,H2 or C3H8 assisted catalytic combustion of methane over supported LaMnO3 monoliths[J]. Catalysis Today, 2003,83(1-4):33-43.
[17]  Kantcheva M,Kucukkal M U,Suzer S. XPS and IR characterization of manganese ions deposited on alumina [J]. Journal of Molecular Structure, 1999(482-483):19-22.
[18]  Finocchio E,Busca G,Lorenzelli V,et al. The activation of hydrocarbon C-H bonds over transition metal oxide catalysts:A FTIR study of hydrocarbon catalytic combustion over MgCr2O4[J]. Journal of Catalysis, 1995,151(1):204-215.
[19]  Almusaiteer K,Chuang S S C. Dynamic behavior of adsorbed NO and CO under transient conditions on Pd/Al2O3[J]. Journal of Catal, 1999,184(1):189-201.
[20]  Ruud W,van den Brink,Mulder P,et al. Catalytic oxidation of dichloromethane on γ-Al2O3:A combined flow and infrared spectroscopic study[J]. Journal of Catal, 1998,180(2):153-160.

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