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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: An effective method for the regeneration of thermally deactivated commercial monolith SCR catalysts waseffects of temperature and the regeneration process on the structural and textural properties of the catalystsThe aggregated V O were partially re-dispersed during the regeneration process, and the intrinsic oxidationof ammonia with high concentrations of O is a factor that suppresses the catalytic activity.

Keywords： V<sub>2sub>O<sub>5sub>-WO<sub>3sub>/TiO<sub>2sub> catalysts     thermal deactivation     regeneration     NH<sub>4sub>Cl     dilute H<sub>2sub>SO<sub>4sub> solution    

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Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 420-427 doi: 10.1007/s11783-013-0489-0

Abstract: V O -WO /TiO catalyst was poisoned by impregnation with NH Cl, KOH and KCl solution, respectively.The catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), N physisorptionchloride enlarges the pore size of the titania support, and promotes the formation of highly dispersed V=O vanadyl which improves the oxidation of ammonia and the high-temperature SCR activity.nsted acidity of catalysts and decrease the stability of Br?nsted acid sites significantly.

Keywords： V<sub>2sub>O<sub>5sub>-WO<sub>3sub>/TiO<sub>2sub>     potassium chloride     poisoning     reducibility     acid    

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Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 156-161 doi: 10.1007/s11783-010-0295-x

Abstract: A series of CeO supported V O catalysts with various loadings were prepared with different calcinationThe effects of O and SO on catalytic activity were also studied.The experimental results showed that NO conversion changed significantly with the different V O loadingWith the V O loading increasing from 0 to 10 wt%, NO conversion increased significantly, but decreasedThe formation of CeVO on the surface of catalysts caused the decrease of redox ability.

Keywords： V<sub>2sub>O<sub>5sub>/CeO<sub>2sub> catalysts     NH<sub>3sub>-SCR (selective catalytic reduction    

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Cu-doped Bi/Bi<sub>2sub>WO<sub>6sub> catalysts for efficient N<sub>2sub> fixation by photocatalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1412-1422 doi: 10.1007/s11705-023-2312-1

Abstract: >2sub>WO<sub>6sub> composite.>2sub>WO<sub>6sub>.The optimized NH<sub>3sub> generation rates of Bi/Cu-Bi<sub>2sub>WO<sub>6sub> reached 624 and 243>2sub>WO<sub>6sub>, respectively.>2sub>-to-NH<sub>3sub> conversion.

Keywords： Bi<sub>2sub>WO<sub>6sub>     Cu doping     work function     photocatalytic N<sub>2sub> fixation     charge    

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On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co<sub>3sub>O<sub>4sub>/ZSM-5 catalysts with different loadingsCo<sub>3sub>O<sub>4sub> can spontaneously disperse on HZSM-5 support with a monolayer dispersionreaction performance. 4% Co<sub>3sub>O<sub>4sub>/ZSM-5, the catalyst close to the monolayer dispersionIt is proposed the optimal Co<sub>3sub>O<sub>4sub>/ZSM-5 catalyst can be prepared by loading thecapacity amount of Co<sub>3sub>O<sub>4sub> onto HZSM-5 support.

Keywords： Co<sub>3sub>O<sub>4sub>/ZSM-5     NO<sub>xsub>-SCR by NH<sub>3sub>     monolayer dispersionthreshold effect     surface acid sites     surface active O<sub>2sub>– anions    

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Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1363-5

Abstract:

• A V<sub>2sub>O<sub>5sub>/TiO<sub>2sub> granular catalyst for

Keywords： NO<sub>xsub>     Chlorobenzene     Simultaneous removal     Kinetic study     Performance prediction     V<sub>2sub>O<sub>5sub>/TiO<sub>2sub>     Graphical abstract    

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Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials.The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of NO than the Rh O supported on CePO nanorods.The stability of both catalysts as a function of time on stream was studied and the influence of theco-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated.

Keywords： Rh<sub>2sub>O<sub>3sub>     CePO<sub>4sub>     N<sub>2sub>O decomposition    

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CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanationThe catalysts were characterized by N physisorption, hydrogen temperature-programmed reduction and desorptionThe Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperaturesThe co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords： Mn promotion     nickel catalysts     CO<sub>2sub> methanation     co-methanation of CO and CO<sub>2sub>    

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Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 732-743 doi: 10.1007/s11708-021-0772-x

Abstract: photocatalytic properties of core-shell heterojunctions photocatalysts with reversible configuration of TiO<sub>2sub> and Bi<sub>2sub>O<sub>3sub> layers were studied.The results show the formation of homogenous TiO<sub>2sub> anatase and Bi<sub>2sub>O<sub>3sub>In optimal core-shell design, Bi<sub>2sub>O<sub>3sub> collects holes from TiO<sub>2sub>, leavingelectrons free to react and increase by 5 times the photocatalytic efficiency toward H<sub>2sub> generation

Keywords： photocatalysis     core-shell     heterojunction     H<sub>2sub>     TiO<sub>2sub>     Bi<sub>2sub>O<sub>3sub    

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Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub>xsub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> Catalysts Article

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Engineering 2019, Volume 5, Issue 3,   Pages 568-575 doi: 10.1016/j.eng.2019.02.005

Abstract:

In this investigation, Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> catalysts were preparedThe physical and chemical properties of the Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub>catalysts were studied using a combination of characterization techniques, which showed that PtO<sub>xsub>, CeO<sub>2sub>, and BaCO<sub>3sub>, whose peaks were observed in X-ray diffraction(XRD) spectra, dispersed well on the γ-Al2O3, as shown by transmission electron microscope (TEM

Keywords： Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> catalysts     Physicochemical properties     NO<sub>xsub> storageand reduction     NO<sub>xsub> emission     H<sub>2sub> reductant    

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 63-67

Abstract:

The thermodynamic calculation and analysis of combustion synthesis reaction of Al - Cr<sub>2</sub>O<sub>3</sub> system with AI<sub>2</sub>O<sub>3</sub>and Cr<sub>2</sub>O<sub>3</sub> diluents were conducted, and the effects of reactionstarting temperature T<sub>O</sub>, diluents AI<sub>2</sub>O<sub>3</sub> and Cr<sub>2</sub>O<sub>3</sub> on the adiabatic combustion temperature

Keywords： cermet     combustion synthesis     Al - Cr<sub>2sub>O<sub>3sub> system     thermodynamics     reaction model    

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Highly selective catalytic hydrodeoxygenation of guaiacol to cyclohexane over Pt/TiO

Zhong HE,Xianqin WANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 369-377 doi: 10.1007/s11705-014-1435-9

Abstract: Catalysts Pt/TiO and NiMo/Al O are highly active and selective for the hydrodeoxygenation of guaiacolNiMo/Al O and Pt/Al O are more active and selective for cyclohexane formation as compared with Pt/TiOHowever, Pt/TiO is stable while the other two catalysts deactivate due to the nature and amount of coke

Keywords： Pt/TiO<sub>2sub>     NiMo/Al<sub>2sub>O<sub>3sub>     Pt/Al<sub>2sub>O<sub>3sub>     bio-oil     hydrodeoxygenation    

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The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al<sub>2sub>O<sub>3sub> with a small amount, wasintroduced into Pb/SiO<sub>2sub> catalyst in this study.It has been proved that Al<sub>2sub>O<sub>3sub> can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO<sub>2sub> catalyst exhibits a much higher stability up to more than 150 h.>2sub>O<sub>3sub> addition was also proposed.

Keywords： Pb/SiO<sub>2sub>     Al<sub>2sub>O<sub>3sub>     propane dehydrogenation     propene     stability    

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Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderateThe CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO .Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which wasBoth the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course ofCompared to Al O , CeO is more effective for promoting the CO capacity of MgO.

Keywords： CO<sub>2sub> capture     MgO sorbents     Al<sub>2sub>O<sub>3sub>     CeO<sub>2sub>     flue gas    

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Spray Preparation, Microstructure and Properties of Al<sub>2sub>O<sub>3sub>-M<sub>xsub>O Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Strategic Study of CAE 2002, Volume 4, Issue 9,   Pages 75-80

Abstract: carbon steel substrate, base coating of nickel-coated aluminium and intermediate coating of 50% Al<sub>2sub>O<sub>3sub> + 50% Ni were prepared by means of oxyacetylene spray, and final coating of Al<sub>2sub>O<sub>3sub> ～ M<sub>xsub>O<sub>ysub> was prepared by means of plasma spray.of 60% (mass) sulphuric acid with 60 % concentration, and 40% (mass) phosphoric ore powder, the Al<sub>2sub>O<sub>3sub> ～ M<sub>xsub>O<sub>ysub> coating resistance to corrosion and wear, is 7.46

Keywords： Al<sub>2sub>O<sub>3sub>-M<sub>xsub>O<sub>ysub>     coating     plasma     resistance to corrosion     resistance    

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Title Author Date Type Operation

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Journal Article

Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Journal Article

Cu-doped Bi/Bi<sub>2sub>WO<sub>6sub> catalysts for efficient N<sub>2sub> fixation by photocatalysis

Journal Article

On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

Journal Article

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Journal Article

Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

Journal Article

Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub>xsub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> Catalysts

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

Highly selective catalytic hydrodeoxygenation of guaiacol to cyclohexane over Pt/TiO

Zhong HE,Xianqin WANG

Journal Article

The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst

Journal Article

Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Journal Article

Spray Preparation, Microstructure and Properties of Al<sub>2sub>O<sub>3sub>-M<sub>xsub>O Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Journal Article