Activity and SO<sub>2</sub> deactivation mechanism of vanadium series catalyst containing cerium

YANG Jian; LIN Fan; CHEN Kui; KONG Ming; ZHAO Dong; MENG Fei

Volume 44 Issue 11

Nov. 2016

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YANG Jian, LIN Fan, CHEN Kui, KONG Ming, ZHAO Dong, MENG Fei. Activity and SO2 deactivation mechanism of vanadium series catalyst containing cerium[J]. Journal of Fuel Chemistry and Technology, 2016, 44(11): 1394-1400.

Citation:

YANG Jian, LIN Fan, CHEN Kui, KONG Ming, ZHAO Dong, MENG Fei. Activity and SO₂ deactivation mechanism of vanadium series catalyst containing cerium[J]. Journal of Fuel Chemistry and Technology, 2016, 44(11): 1394-1400.

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Activity and SO₂ deactivation mechanism of vanadium series catalyst containing cerium

Engineering Research Center for Energy and Environment of Chongqing, College of Materials Science and Engineering of Chongqing University, Chongqing 400044, China

Funds:

the National Natural Science Foundation of China 51204220

the National Natural Science Foundation of China 51274263

National Natural Science Foundation of Chongqing cstc2013jjB0035

Received Date: 2016-06-13
Rev Recd Date: 2016-07-17

Available Online: 2021-01-23

Publish Date: 2016-11-10

Abstract

Abstract

The promotion effect of Ce modification on V₂O₅-WO₃/TiO₂ for the selective catalytic reduction (SCR) of NO_x with NH₃ and the SO₂ deactivation mechanism were investigated. Compared with V₁W₅Ti catalyst, the advantage of V₁W₅Ce₆Ti catalyst shows a good catalytic activity. These catalysts were investigated by means of XRD, BET, FT-IR, TG-DSC and XPS. The results demonstrate that the active components of V and W are well-dispersed, while a small cluster of cubic CeO₂ appears over the V₁W₅Ce₈Ti catalyst. The sulfation of V₁W₅Ti under reactive conditions can generate NH₄HSO₄ and (NH₄)₂SO₄ at 250℃. The Ce additive to V₁W₅Ti could provide stronger Brønsted acid sites and more chemisorbed oxygen. The deposited ammonium sulfate on V₁W₅Ce₆Ti catalyst is much smaller than that on V₁W₅Ti because the cerium sulfates species on the surface of V₁W₅Ce₆Ti is formed and the deposition of ammonium sulfate is inhibited, which can disrupt the redox cycle between Ce³⁺ and Ce⁴⁺ and break the V-O-Ce structure, causing the deactivation of V₁W₅Ce₆Ti catalyst.
- selective catalytic reduction,
- V₂O₅-WO₃/TiO₂,
- cerium doped,
- SO₂ deactivation

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References(22)

References

[1]	ZHANG L, LI L, CAO Y, YAO X, GE C, GAO F, DENG Y, TANG C, DONG L. Getting insight into the influence of SO₂ on TiO₂/CeO₂ for the selective catalytic reduction of NO by NH₃[J]. Appl Catal B:Environ, 2015, 165:589-598. doi: 10.1016/j.apcatb.2014.10.029
[2]	KONG M, LIU Q C, ZHU B H, YANG J, LI L, ZHOU Q, REN S. Synergy of KCl and Hg-el on selective catalytic reduction of NO with NH₃ over V₂O₅-WO₃/TiO₂ catalysts[J]. Chem Eng J, 2015, 264:815-823. doi: 10.1016/j.cej.2014.12.038
[3]	JIN R, LIU Y, WANG Y, CEN W, WU Z, WANG H, WENG X. The role of cerium in the improved SO₂ tolerance for NO reduction with NH₃ over Mn-Ce/TiO₂ catalyst at low temperature[J].Appl Catal B:Environ, 2014, 148:582-588.
[4]	BUSCA G, LIETTI L, RAMIS G, BERTI F. Chemical and mechanistic aspects of the selective catalytic reduction of NO_x by ammonia over oxide catalysts:A review[J]. Appl Catal B:Environ, 1998, 18(1):1-36.
[5]	OLIVERI G, BUSCA G, LORENZELLI V, Structure and surface-area evolution of vanadia-on-titania powders upon heat-treatment[J]. Mater Chem Phys, 1989, 22(5):511-521. doi: 10.1016/0254-0584(89)90063-1
[6]	AMORES J M G, ESCRIBANO V S, BUSCA G. Anatase crystal-growth and phase-transformation to rutile in high-area TiO₂, MoO₃-TiO₂ and other TiO₂-supported oxide catalytic-systems[J]. J Mater Chem, 1995, 5(8):1245-1249. doi: 10.1039/JM9950501245
[7]	CHEN J P, BUZANOWSKI M A, YANG R.T, CICHANOWICZ J E. Deactivation of the vanadia catalyst in the selective catalytic reduction process[J]. J Air Waste Manage, 1990, 40(10):1403-1409. doi: 10.1080/10473289.1990.10466793
[8]	JIANG Y, XING Z, WANG X, ET A L. Activity and characterization of a Ce-W-Ti oxide catalyst prepared by a single step sol-gel method for selective catalytic reduction of NO with NH₃[J]. Fuel, 2015, 151:124-129. doi: 10.1016/j.fuel.2015.01.061
[9]	LEE K J, KUMAR P A, MAQBOOL M S. Ceria added Sb-V₂O₅/TiO₂ catalysts for low temperature NH₃ SCR:Physico-chemical properties and catalytic activity[J]. Appl Catal B:Environ, 2013, 142:705-717.
[10]	KWON D W, NAM K B, HONG S C. The role of ceria on the activity and SO₂ resistance of catalysts for the selective catalytic reduction of NO_x by NH₃[J]. Appl Catal B:Environ, 2015, 166-167:37-44. doi: 10.1016/j.apcatb.2014.11.004
[11]	刘昕, 宁平, 李昊, 宋忠贤, 王燕彩, 张金辉, 唐小苏, 王明智, 张秋林.水相法制备Ce-W@TiO₂催化剂的氨选择性催化还原NO (NH₃-SCR) 活性和抗SO₂性能研究[J].燃料化学学报, 2016, 44(2):225-231. doi: 10.1016/S1872-5813(16)30010-X LIU Xin, NING Ping, LI Hao, SONG Zhong-xian, WANG Yan-cai, ZHANG Jin-hui, TANG Xiao-su, WANG Ming-zhi, ZHANG Qiu-lin. Probing NH₃-SCR catalytic activity and SO₂ resistance over aqueous-phase synthesized Ce-W@TiO₂ catalyst[J]. J Fuel Chem Technol, 2016, 44(2):225-231. doi: 10.1016/S1872-5813(16)30010-X
[12]	KWON D W, PARK K H, HONG S C. Enhancement of SCR activity and SO₂ resistance on VO_x/TiO₂ catalyst by addition of molybdenum[J]. Chem Eng J, 2016, 284:315-324. doi: 10.1016/j.cej.2015.08.152
[13]	ZHANG L, LI L, CAO Y. Getting insight into the influence of SO₂ on TiO₂/CeO₂ for the selective catalytic reduction of NO by NH₃[J]. Appl Catal B:Environ, 2015, 165:589-598. doi: 10.1016/j.apcatb.2014.10.029
[14]	KONG M, LIU Q, WANG X, REN S, YANG J, ZHAO D, XI W, YAO L. Performance impact and poisoning mechanism of arsenic over commercial V₂O₅-WO₃/TiO₂ SCR catalyst[J]. Catal Commun, 2015, 72:121-126. doi: 10.1016/j.catcom.2015.09.029
[15]	ZHAO H, BENNICI S, SHEN J, AUROUX A. The influence of the preparation method on the structural, acidic and redox properties of V₂O₅-TiO₂/SO₄^2- catalysts[J]. Appl Catal A:Gen, 2009, 356(2):121-128. doi: 10.1016/j.apcata.2008.12.037
[16]	STOILOVA D, GEORGIEV M, MARINOVA D.Infrared study of the vibrational behavior of CrO₄^2- guest ions matrix-isolated in metal (Ⅱ) sulfates (Me=Ca, Sr, Ba, Pb)[J]. J Mol Struct, 2005, 738(1):211-215. https://www.researchgate.net/publication/244287018_Infrared_study_of_the_vibrational_behavior_of_CrO_4_2-_guest_ions_matrix-isolated_in_metal_Ⅱ_sulfates_MeCa_Sr_Ba_Pb
[17]	TOPSØE N Y, DUMESIC J A, TOPSØE H.Vanadia/titania catalysts for selective catalytic reduction (SCR) of nitric oxide by ammonia. Ⅱ. Studies of active sites and formulation of catalytic cycles[J]. J Catal, 1995, 151(1):241-252. doi: 10.1006/jcat.1995.1025
[18]	GUO XY, BARTHOLOMEW C, HECKER W, BAXTER LL. Effects of sulfate species on V₂O₅/TiO₂ SCR catalysts in coal and biomass-fired systems[J]. Appl Catal B:Environ, 2009, 92(1):30-40.
[19]	MA Z, WU XD, FENG Y, SI ZC, WENG D, SHI L. Low-temperature SCR activity and SO₂ deactivation mechanism of Ce-modified V₂O₅-WO₃/TiO₂ catalyst[J]. Prog Nat Sci Mater, 2015, 25(4):342-352. doi: 10.1016/j.pnsc.2015.07.002
[20]	YANG J, YANG Q, SUN J. Effects of mercury oxidation on V₂O₅-WO₃/TiO₂ catalyst properties in NH₃-SCR process[J]. Catal Commun, 2015, 59:78-82. doi: 10.1016/j.catcom.2014.09.049
[21]	KOHIKI S, SHIMOOKA H, TAKADA S, SHIMIZU A, HIRAKAWA T, TAKAHASHI S. Synthesis and magnetic properties of mesoporous vanadium oxide sulphate[J]. Chem Lett, 2002, 7:670-671.
[22]	LIU CX, CHEN L, LI JH, MA L, ARANDIYAN H, DU Y. Enhancement of activity and sulfur resistance of CeO₂ supported on TiO₂-SiO₂ for the selective catalytic reduction of NO by NH₃[J]. Environ Sci Technol, 2012, 46(11):6182-6189. doi: 10.1021/es3001773