OMS-2/Al<sub>2</sub>O<sub>3</sub>/堇青石整体式催化剂的制备及其催化性能研究

孙明; 余林; 那秀辉; 刁贵强; 叶飞

OMS-2/Al₂O₃/堇青石整体式催化剂的制备及其催化性能研究

广东工业大学轻工化工学院, 广东广州 510006

基金项目: 广东省自然科学基金(10251009001000003, S2012010009680);广东省科技计划项目(012A030600006);广东省高等学校学科建设基金(cgzhzd1104)。

详细信息

通讯作者:
孙明, E-mail: sunmgz@gmail.com。

中图分类号: O643
计量
- 文章访问数: 1251
- HTML全文浏览量: 18
- PDF下载量: 632
- 被引次数: 0
出版历程
- 收稿日期: 2013-01-04
- 修回日期: 2013-05-07
- 刊出日期: 2013-09-30

Preparation and catalytic performance of OMS-2/Al₂O₃/cordierite monolithic catalyst

School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

摘要

摘要: 以Al₂O₃/堇青石蜂窝陶瓷为载体,氧化锰八面体分子筛(OMS-2)为活性组分,采用涂覆法制备了系列整体式催化剂。考察了黏合剂种类和活性组分涂覆次数对二甲醚(DME)催化燃烧性能的影响,并对催化剂进行XRD、BET、SEM、H₂-TPR、O₂-TPD等表征。结果表明,以甲氧基聚乙二醇为黏合剂经一次涂覆制备的整体式催化剂的性能最佳,活性组分OMS-2以相互交织的簇体均匀分布在载体上,并与Al₂O₃之间存在较强的相互作用。涂层的添加有效增加了催化剂的比表面积,提高了催化剂的性能,最佳催化活性t₉₀为257 ℃。
- 氧化锰 /
- 整体式催化剂 /
- 二甲醚 /
- 催化燃烧
Abstract: Monolithic catalysts for catalytic combustion of dimethyl ether (DME) were prepared by a dip-coating method using Al₂O₃/cordierite as support and manganese oxide octahedral molecular sieve (OMS-2) as active component. The effect of different types of organic polymer binder and the coating times of active component on the performance of DME combustion were investigated. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), hydrogen temperature-programmed reduction (H₂-TPR) and oxygen temperature-programmed desorption (O₂-TPD) techniques. The results showed that the best catalyst was the one using methoxy polyethylene glycol (MPEG) as the coating binder by one-time coating. The active component OMS-2 was in a cluster form and homogeneously dispersed on the surface of the support because of the strong interaction between OMS-2 and Al₂O₃ coating. The Al₂O₃ coating could significantly improve the surface area of catalysts, and thus enhance the activity performance. The highest catalytic activity for DME combustion with a complete combustion temperature (t₉₀) of 257 ℃ was obtained.
- manganese oxide /
- monolithic catalyst /
- dimethyl ether /
- catalytic combustion

HTML全文

参考文献(17)

ADACHI Y, KOMOTO M, WATANABE I, OHNO Y, FUJIMOTO K. Effective utilization of remote coal through dimethyl ether synthesis[J]. Fuel, 2000, 79(3/4): 229-234.

GUO X. Progress and prospect of single-step synthesis of DME[J]. China Pet Process PE Technology, 2010, 12(2): 1-7.

高志华, 孙旭伟, 黄伟, 阴丽华, 谢克昌. 不同含量CO₂热处理气氛对完全液相法制备二甲醚催化剂性能的影响[J]. 燃料化学学报, 2008, 36(4): 503-507. (GAO Zhi-hua, SUN Xu-wei, HUANG Wei, YIN Li-hua, XIE Ke-chang. Effect of heat treatment atmosphere with the different content of CO₂ on the performance of DME catalysts prepared by the complete liquid-phase technology[J]. Journal of Fuel Chemistry and Technology, 2008, 36(4): 503-507.)

马俊国, 葛庆杰, 马现刚, 徐恒泳. 浆态床反应器中生物质合成气合成二甲醚的研究[J]. 燃料化学学报, 2012, 40(7): 843-847. (MA Jun-guo, GE Qing-jie, MA Xian-gang, XU Heng-yong. DME synthesis from biomass-derived syngas in a slurry-bed reactor[J]. Journal of Fuel Chemistry and Technology, 2012, 40(7): 843-847.)

许庆利, 蓝平, 周明, 颜涌捷. 生物质间接液化合成燃料二甲醚[J]. 燃料化学学报, 2010, 36(3): 292-296. (XU Qing-li, LAN Ping, ZHOU Ming, YAN Yong-jie. Synthesis of fuel dimethyl ether by indirect liquefaction of biomass[J]. Journal of Fuel Chemistry and Technology, 2010, 36(3): 292-296.)

SEMELSBERGER T A, BORUP R L, GREENE H L. Dimethyl ether (DME) as an alternative fuel[J]. J Power Sources, 2006, 156(2): 497-511.

ARCOUMANIS C, BAE C, CROOKES R, KINOSHITA E.The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review[J]. Fuel, 2008, 97(7): 1014-1030.

SEROV A, KWAK C. Progress in development of direct dimethyl ether fuel cells[J]. Appl Catal B: Environ, 2009, 91(1/2): 1-10.

马忠, 蒋淇忠, 马紫峰. 车载二甲醚重整制氢技术的研究进展[J].化工进展, 2011, 30(2): 292-297. (MA Zhong, JIANG Qi-zhong, MA Zi-fen. Advance in onboard reforming technology of DME to hydrogen[J]. Chemical Industry and Engineering Progress, 2011, 30(2): 292-297.)

李娟, 海航, 闫常峰, 胡蓉蓉, 么志伟, 罗伟民, 郭常青, 李文博. 焙烧温度对二甲醚水蒸气重整制氢Cu/ZnO/Al₂O₃/Cr₂O₃+H-ZSM-双功能催化剂性能的影响[J]. 燃料化学学报, 2012, 40(10): 1240-1245. (LI Juan, HAI Hang, YAN Chang-feng, HU Rong-rong, YAO Zhi-wei, LUO Wei-min, GUO Chang-qing, LI Wen-bo. Effect of calcination temperature on properties of Cu/ZnO/Al₂O₃/Cr₂O₃+H-ZSM-5 bi-functional catalysts for steam reforming of dimethyl ether[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1240-1235.)

孙明, 余林, 余倩, 余坚, 郝志峰. Ce掺杂的OMS-2催化剂上二甲醚催化燃烧性能的研究[J]. 燃料化学学报, 2012, 40(1): 108-115. (SUN Ming, YU Lin, YU Qian, YU Jian, Hao Zhi-feng. Catalytic combustion of dimethyl ether over Ce-doped cryptomelane-type manganese oxide[J]. Journal of Fuel Chemistry and Technology, 2010, 40(1): 108-115.)

董国君, 罗璇, 杨治, 梁涛, 张文平. Cu、Mn、Ce 改性V₂O₅-WO₃/TiO₂/堇青石催化剂Urea-SCR脱除NO[J]. 燃料化学学报, 2012, 40(10): 608-614. (DONG Guo-jun, LUO Xuan, YANG Zhi, LIANG Tao, ZHANG Wen-ping. Urea-SCR of NO over V₂O₅-WO₃/TiO₂/cordierite catalyst modified with Cu, Mn, Ce[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 608-614.)

那秀辉, 余林, 孙明, 刁贵强, 杨霞卿, 史利涛, 潘霁飞. OMS-2/堇青石整体式催化剂的制备及其对二甲醚燃烧的催化性能[J]. 催化学报, 2010, 31(8): 1019-1024. (NA Xiu-hui, YU Lin, SUN Ming, DIAO Gui-qiang, YANG Xia-qing, SHI Li-tao, PAN Ji-fe. Preparation of OMS-2/cordierite monolithic catalysts and their catalytic performance for dimethyl ether combustion[J]. Chinese Journal of Catalysis, 2010, 38(01): 108-115.)

ARENA F, TORRE T, RAIMONDO C, PARMALIANA A. Structure and redox properties of bulk and supported manganese oxide catalysts[J]. Phys Chem Chem Phys, 2001, 3(10): 1911-1917.

ETTIREDDY P R, ETTIREDDY N, MAMEDOV S, BOOLCHAND P, SMIRNIOTIS P G.. Surface characterization studies of TiO₂ supported manganese oxide catalysts for low temperature SCR of NO with NH₃[J]. Appl Catal B: Environ, 2007, 96(1/2): 123-134.

SANTOS V P, PEREIRA M F R, RFO J J M, FIGUEIREDO J L. The role of lattice oxygen on the activity of manganese oxides towards the oxidation of volatile organic compounds[J]. Appl Catal B: Environ, 2010, 99(1/2): 353-363.

胡蓉蓉, 程易, 谢兰英, 王德峥. 掺Ag对氧化锰八面体分子筛催化CO氧化性能的影响[J]. 催化学报, 2007, 28(5): 463-468. (HU Rong-rong, CHENG Yi, XIE Lan-ying, WANG De-zheng. Effect of doped Ag on performance of manganese oxide octahedral molecular sieve for CO oxidation[J]. Chinese Journal of Catalysis, 2007, 28(5): 463-468.)

施引文献

资源附件(0)

访问统计