The role of vanadium species during SO2 removal over a V2O5/AC catalyst

被引：10

作者：

Guo, Qianqian ^{[1
,2
]}

Jing, Wen ^{[2
]}

Hou, Yaqin ^{[2
]}

Li, Yulin ^{[2
]}

Li, Fenghai ^{[1
]}

Huang, Zhanggen ^{[2
]}

机构：

[1] Heze Univ, Sch Chem & Chem Engn, Heze 274015, Peoples R China

[2] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2020年 / 10卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ACTIVATED CARBON; SULFUR-DIOXIDE; NO REDUCTION; FLUE-GAS; COPPER-OXIDE; NITRIC-OXIDE; ADSORPTION; NH3; REGENERATION; MECHANISM;

D O I：

10.1039/c9cy01975h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The role of vanadium species during SO2 removal over a V2O5/AC catalyst was studied in detail using in situ diffuse reflectance infrared Fourier transform spectroscopy, Raman spectroscopy, temperature programmed desorption, X-ray photoelectron spectroscopy and N-2 adsorption. Results revealed that V2O5 reacted with SO2 to form a stable vanadium(v) sulfate of V2O3(SO4)(2). However, V2O3(SO4)(2) did not deactivate the catalyst and was catalytically active towards SO2 oxidation, leading to the formation of H2SO4. Thus, the sulfur capacity of the V2O5/AC catalyst was determined by formation of V2O3(SO4)(2) and H2SO4. Increasing V2O5 loading enhanced the formation of V2O3(SO4)(2) but inhibited that of H2SO4 because V2O3(SO4)(2) occupied the pores for H2SO4 storage.

引用

页码：231 / 239

页数：9

共 40 条

[1] Structure-performance relationship in CuO/SBA-15-type SOx adsorbent: evolution of copper-based species under different regenerative treatments [J].

Berger, M. ;

Fioux, P. ;

Dorge, S. ;

Nouali, H. ;

Habermacher, D. ;

Fiani, E. ;

Vierling, M. ;

Moliere, M. ;

Brilhac, J. F. ;

Patarin, J. .

CATALYSIS SCIENCE & TECHNOLOGY, 2017, 7 (18) :4115-4128

[2] ADSORPTION OF SO-2 IN FLOWING AIR ONTO ACTIVATED CARBONS FROM OLIVE STONES [J].

CARRASCOMARIN, F ;

UTRERAHIDALGO, E ;

RIVERAUTRILLA, J ;

MORENOCASTILLA, C .

FUEL, 1992, 71 (05) :575-578

[3] INVESTIGATION ON THE ADSORPTION AND DESORPTION OF SULFUR-DIOXIDE ON ACTIVE-CARBON IN THE TEMPERATURE-RANGE BETWEEN 130-DEGREES-C AND 170-DEGREES-C [J].

DAVINI, P .

CARBON, 1991, 29 (03) :321-327

[4] Role of sulphates on the mechanism of NH3-SCR of NO at low temperatures over presulphated vanadium supported on carbon-coated monoliths [J].

García-Bordejé, E ;

Pinilla, JL ;

Lázaro, MJ ;

Moliner, R ;

Fierro, JLG .

JOURNAL OF CATALYSIS, 2005, 233 (01) :166-175

[5] Oxidation of sulfur dioxide over supported solid V2O5/SiO2 and supported molten salt V2O5-CS2SO4/SiO2 catalysts:: molecular structure and reactivity [J].

Giakoumelou, L ;

Parvulescu, V ;

Boghosian, S .

JOURNAL OF CATALYSIS, 2004, 225 (02) :337-349

[6] SELECTIVE CATALYTIC REDUCTION OF NITRIC-OXIDE BY AMMONIA ON FE3+-PROMOTED ACTIVE-CARBON [J].

GRZYBEK, T ;

PAPP, H .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1992, 1 (04) :271-283

[7] Effects of preparation conditions on Mn-based activated carbon catalysts for desulfurization [J].

Guo, Jia-Xiu ;

Qu, Yi-Fan ;

Shu, Song ;

Wang, Xue-Jiao ;

Yin, Hua-Qiang ;

Chu, Ying-Hao .

NEW JOURNAL OF CHEMISTRY, 2015, 39 (08) :5997-6015

[8] Regeneration of a vanadium pentoxide supported activated coke catalyst-sorbent used in simultaneous sulfur dioxide and nitric oxide removal from flue gas: Effect of ammonia [J].

Guo, Yanxia ;

Liu, Zhenyu ;

Liu, Qingya ;

Huang, Zhanggen .

CATALYSIS TODAY, 2008, 131 (1-4) :322-329

[9]

[郭彦霞 GUO Yanxia], 2007, [燃料化学学报, Journal of Fuel Chemistry and Technology], V35, P344

[10] Reaction behavior of sulfur dioxide with ammonia [J].

Guo, YX ;

Liu, ZY ;

Huang, ZG ;

Liu, QY ;

Guo, SJ .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (26) :9989-9995

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