Mn-CeO<sub><em>x</em></sub>/Ti-PILC的制备、表征及脱硝性能研究

沈伯雄; 马宏卿; 杨晓燕; 姚燕

Mn-CeO_x/Ti-PILC的制备、表征及脱硝性能研究

南开大学环境科学与工程学院, 天津 300071

基金项目: 国家自然科学基金(50976050,51176077);天津基金重点项目(12JCZ)J(29300);外国青年合作基金(51150110155)。

详细信息

中图分类号: X701
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出版历程
- 收稿日期: 2011-06-11
- 修回日期: 2011-09-19
- 刊出日期: 2012-05-31

Study on preparation, characterization and de-NO activity of Mn-CeO_x/Ti-PILC

College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China

Funds: 国家自然科学基金(50976050,51176077);天津基金重点项目(12JCZ)J(29300);外国青年合作基金(51150110155)。

摘要

摘要: 采用钛酸丁酯溶胶法制备了钛基柱撑黏土(Ti-PILC),通过浸渍法制备Mn-CeO_x/Ti-PILC,运用BET、FT-IR、XRD、NH₃-TPD、XPS等技术对催化剂进行表征分析。结果说明,经过钛交联柱撑制备的Mn-CeO_x/Ti-PILC是一种具备较大比表面积(133.7 m²/g)的多孔性介孔材料;活性成分主要为CeO₂以及Mn₂O₃。Mn-CeO_x/Ti-PILC低温下具有较好的选择性能催化剂还原(SCR)脱硝活性,180 ℃下,脱硝活性达到83.1%。
- Mn-CeO_x/Ti-PILC /
- 表征 /
- 低温SCR
Abstract: Titania-pillared clay (Ti-PILC) was prepared from butyltitanate, then Mn-CeO_x/Ti-PILC was prepared by impregnating method on the Ti-PILC. The catalysts were characterized by BET, FT-IR, XRD, XPS and NH₃-TPD. The results showed that, the pillaring process was efficient. Active components exist in Mn₂O₃ and CeO₂ in catalyst Mn-CeO_x/Ti-PILC which was a porous mesopore material with high BET surface area(133.7 m²/g), the activity test also indicted that this catalyst had good de-NO_x activity, the removal efficiency could reach 83.1% even at 180 ℃.
- Mn-CeO_x/Ti-PILC /
- characterization /
- low-temperature SCR

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韦正乐, 黄碧纯, 叶代启, 徐雪梅. 烟气NO_x低温选择性催化还原催化剂研究进展[J]. 化工进展, 2007, 26(3): 320-325. (WEI Zheng-le, HUANG Bi-chun, YE Dai-qi, XU Xue-mei. Review of catalysts for low-temperature SCR of NO_x[J].Chemical Industry and Engineering Progress, 2007, 26(3): 320-325.)

QI G, YANG R T, CHANG R. MnO_x-CeO₂ mixed oxides prepared by co-precipitation for selective catalytic reduction of NO with NH₃ at low temperatures[J]. Appl Catal B, 2004, 51(2): 93-106.

TANG X L, HAO J M. YI H H, LI J H. Low-temperature SCR of NO with NH₃ over AC/C supported manganese-based monolithic catalysts[J]. Catal Today, 2007, 126(3/4): 406-411.

郑足红, 童华, 童志权, 黄妍, 罗晶. Mn-V-Ce/TiO₂低温催化还原NO性能研究[J]. 燃料化学学报, 2010, 38(3): 343-350. (ZHENG Zu-hong, TONG Hua, TONG Zhi-quan, LUO Jing. Catalytic reduction of NO over Mn-V-Ce/TiO₂ catalysts at low reaction temperature[J]. Journal of Fuel Chemistry and Technology. 2010, 38(3): 343-350.)

GIL A, VICENTE M A, GANDY L M. Main factors controlling the texture of zirconia and alumina pillared clays[J]. Microporous Mesoporous Mater, 2000, 34(1): 115-125.

KRISHNA B S, MURTY D S R, PRAKASH B S J. Surfactant-modified clay as adsorbent for chromate[J]. Appl Clay Sci, 2001, 20(1/2): 65-71.

陆琦, 雷新荣, 汤中道, 刘惠芳. 柱撑黏土矿物材料的晶体结构和晶体化学特征[J].地质科技情报, 2001, 20(1): 91-99. (LU Qi, LEI Xin-rong, TANG Zhong-dao, LIU Hui-fang. Cristal structure and crystal chemistry of pillared clay mineral materials[J]. Geological Science and Technology Information, 2001, 20(1): 91-99.)

曾昭槐. 择形催化[M]. 北京: 中国石化出版社, 1994: 38-72. (ZENG Zhao-huai. Shape-selective catalysis[M]. Beijing: China Petrochemical Press, 1994: 38-72.)

李松军, 罗来涛, 郭建军. 交联粘土催化剂的研究与进展[J]. 工业催化, 2000, 8(6): 3-7. (LI Song-jun, LUO Lai-tao, GUO Jian-jun. Recent progress in cross linked clay catalysts[J]. Industrial Catalysis, 2000, 8(6): 3-7.)

闵恩泽. 工业催化剂的研制与开发[M]. 北京:中国石化出版社, 1997: 82-83. (MIN En-ze. Research and development of industrial catalysts[M]. Beijing: China Petrochemical Press, 1997: 82-83.)

YANG R T, CHEN J P, KIKINIDES E S, CHENG L S. Pillared clays as superior catalysts for selective catalytic reduction of NO with NH₃[J]. Ind Eng Chem Res, 1992, 31(6): 1440-1445.

LI X Y, LU G, QU Z P, ZHANG D K, LIU S M. The role of titania pillar in copper-ion exchanged titania pillared clays for the selective catalytic reduction of NO by propylene[J]. Appl Catal A, 200, 398(1/2): 82-87.

KHALFALLAH BOUDALI L, GHORBED A, GRANG P. Characterization and reactivity of WO₃-V₂O₅ supported on sulfated titanium pillared clay catalysts for the SCR-NO reaction[J]. Comptes Rendus Chimie, 2009, 12(6/7): 779-786.

KHALFALLAH BOUDALI L, GHORBED A, GRANG P. SCR of NO by NH₃ over V₂O₅supported sulfated Ti-pillared clay: Reactivity and reducibility of catalysts[J]. Appl Catal A, 2006, 305(1): 7–14.

CHMIELARZ L, KUSTROWSKI P, ZBROJIA M. SCR of NO by NH₃on alumina or titania-pillared montmorillonite various modified with Cu or Co: Part I General characterization and catalysts screening[J]. Appl Catal B, 2003, 45(2): 103-116.

LONG R Q, YANG R T. The Promoting role of rare earth oxides on Fe-exchanged TiO₂-pillared clay for selective catalytic reduction of oxide by ammonia[J]. Appl Catal B, 2000, 27(2): 87-95.

MANOVA E, ARANDA P, ANGELES M, SADOK L, EDUARDOC L R. New titania-clay nanostructured porous materials[J]. Microporous Mesoporous Mater, 2010, 131(1/3): 252-260.

HONG Q Q, ZUO S F, ZHOU R X. Catalytic performance of pillared interlayered clays (PILCs) supported CrCe catalysts for deep oxidation of nitrogen-containing VOCs[J]. Appl Catal B, 2010, 95(3/4): 327–334.

管俊芳, 狄敬茹, 于吉顺. Zr/Al基柱撑蒙脱石矿物材料的红外光谱研究[J]. 硅酸盐学报, 2005, 33(2): 220-224. (ZENG Jun-fang, DI Jing-ru, YU Ji-shun. Spevta of Zr/Al montmorillonite mineral material[J]. Journal of the Chinese Ceramic Society, 2005, 33(2): 220-224.)

BINITHA N N, SUGUNAN S, . Preparation, characterization and catalytic activity of titania pillared montmorillonite clays[J]. Microporous Mesoporous Mater, 2006, 93(1/3): 82-89.

SHEN B, YAO Y, MA H, LIU T. Ceria modified MnO_x/TiO₂-PILC catalysts for selective catalytic reduction of NO with NH₃ at low temperature[J]. Chin J Catal, 2011, 32(11/12): 1803-1811.

BINEESH K V, KIM S Y, JERMY B R, PARK D W. Synthesis, characterization and catalytic performance of vanadia-doped delaminated zirconia-pillared montmorillonite clay for the selective catalytic oxidation of hydrogen sulfide[J]. J Mol Catal A. 2009, 308(1/2): 150–158.

ETTIREDDY P R, ETTIREDDY N, MAMEDOV S. Surface characterization studies of TiO₂ supported manganese oxide catalysts for low temperature SCR of NO with NH₃[J]. Appl Catal B, 2007, 76(1/2): 123-134.

梅燕, 闫建平, 聂祚仁. 焙烧条件对Ce离子价态影响的XPS研究[J]. 光谱学与光谱分析, 2010 , 30(1): 270-273. (MEI Yan, YAN Jian-ping, NIE Zuo-ren. XPS study on the influence of the calcinations conditions of the cerium ions valence[J]. Spectrosc Spectral Anal, 2010, 30(1): 270-273.)

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