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NO<sub>xsub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 4-13 doi: 10.1007/s11708-020-0804-y

Abstract: Low NO combustion of blended coals is widely used in coal-fired boilers in China to control NO emission; thus, it is necessary to understand the formation mechanism of NO and H S during the combustion of blended coals. This paper focused on the investigation of reductive gases in the formation of NO and H S in the reductive zone of blended coals during combustion. Experiments with Zhundong (ZD) and Commercial (GE) coal and their blends with different mixing ratios were conducted in a drop tube furnace at 1200°C–1400°C with an excessive air ratio of 0.6–1.2. The coal conversion and formation characteristics of CO, H S, and NO in the fuel-rich zone were carefully studied under different experimental conditions for different blend ratios. Blending ZD into GE was found to increase not only the coal conversion but also the concentrations of CO and H S as NO reduction accelerated. Both the CO and H S concentrations inblended coal combustion increase with an increase in the combustion temperature and a decrease in the excessive air ratio. Based on accumulated experimental data, one interesting finding was that NO and H S from blended coal combustion were almost directly dependent on the CO concentration, and the CO concentration of the blended coal combustion depended on the single char gasification conversion.Thus, CO, NO , and H S formation characteristics from blended coal combustion can be well predicted by single char gasification kinetics.

Keywords： blended coal combustion     NO<sub>x sub>formation     H<sub>2sub>S formation     air staged combustion    

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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: >xsub>) storage and reduction (NSR).>xsub>, CeO<sub>2sub>, and BaCO<sub>3sub>, whose peaks were observed in X-ray diffractionIn the process of a complete NSR experiment, the NO<sub>xsub> storage capability was greatlyIn a lean and rich cycling experiment, the results showed that NO<sub>xsub> storage efficiencyThe maximum NO<sub>xsub> conversion of the catalyst reached 83.5% when the duration of the

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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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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NiFeRuO<sub>xsub> nanosheets on Ni foam as an electrocatalyst for efficient

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1698-1706 doi: 10.1007/s11705-023-2334-8

Abstract: The electrocatalyst NiFeRuO<sub>xsub>/NF, comprised of NiFeRuO<sub>xsub> nanosheetsNiFeRuO<sub>xsub>/NF displays high electrocatalytic activity and stability for overall alkalineA solar-driven system containing such a bifunctional NiFeRuO<sub>xsub>/NF has an almost 100%The NiFeRuO<sub>xsub> coating around Ni foam is an anti-corrosion layer and also a critical

Keywords： NiFeRuO<sub>xsub> nanosheets     Ni foam     electrocatalysis     overall seawater splitting     solar-driven    

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Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered macroporous SrTiO decorated with ZnCdS

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1561-1571 doi: 10.1007/s11705-021-2089-z

Abstract: In this study, we demonstrate the fabrication of three-dimensionally ordered macroporous SrTiO<sub>3sub> decorated with Zn<sub>xsub>Cd<sub>1−sub><sub>xsub>S nanoparticles for hydrogenapparent quantum efficiency of 35.9% at 420 nm, which is 4.2 and 23.9 times higher than those of pure Zn<sub>0.5sub>Cd<sub>0.5sub>S (4.67 mmol·g−1·h−1) and CdS (0.82 mmol·g−1

Keywords： three-dimensionally ordered macroporous SrTiO<sub>3sub>     Zn<sub>xsub>Cd<sub>1–sub><sub>xsub>S     visible light     hydrogen production     promotion mechanism    

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Recent advances in special morphologic photocatalysts for NO removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1573-0

Abstract:

● Systematic information of recent progress in photocatalytic NO<sub> x sub> removal is provided.

Keywords： NO<sub>xsub> removal     Photocatalyst     Graphene     C<sub>3sub>N<sub>4sub>     Bi-based compounds    

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Direct Evidence of Coal Swelling and Shrinkage with Injecting CO<sub>2sub> and N<sub>2sub> Using in-situ Synchrotron X-ray Microtomography Article

Guanglei Zhang, P.G. Ranjith, Herbert E. Huppert

Engineering 2022, Volume 18, Issue 11,   Pages 88-95 doi: 10.1016/j.eng.2022.03.010

Abstract: >2sub>) disposal and are generally located near large point sources of CO<sub>2sub> emissions.The injection of CO<sub>2sub> into coal seams has great potential to sequester CO<sub>2sub> whilesimultaneously enhancing coalbed methane (CO<sub>2sub>-ECBM) recovery.Here, using in situ synchrotron X-ray microtomography, we provide the first observational evidence that>2sub> and CO<sub>2sub>—is an attractive alternative for ECBM recovery instead of pure CO<sub

Keywords： CCS     CO<sub>2sub>     -ECBM     Carbon neutrality     X-ray imaging     Coal permeability    

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Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11684-022-1565-0

Abstract:

● Cu addition enhances CH<sub>3sub>OH oxidation and alleviates

Keywords： Copper modification     Sb-CeZr<sub>2sub>O<sub>xsub> catalyst     NO<sub>xsub>     Methanol    

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Deciphering the Origins of P1-Induced Power Losses in Cu(In<sub>xsub>,Ga<sub>1–xsub>)Se<sub>2sub> (CIGS) Modules Through Hyperspectral Luminescence Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Engineering 2020, Volume 6, Issue 12,   Pages 1395-1402 doi: 10.1016/j.eng.2019.12.019

Abstract: optimiz1ation of the laser ablation processes used for the patterning interconnections of subcells on Cu(In<sub>xsub>,Ga<sub>1-xsub>)Se<sub>2sub> (CIGS) modules.

Keywords： Cu(Inx     Ga1-x)Se2     Cell-to-module efficiency gap     P1-induced power losses     Hyperspectral photoluminescence    

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Chemical poison and regeneration of SCR catalysts for NO<sub>xsub>

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 413-427 doi: 10.1007/s11783-016-0832-3

Abstract: Selective catalytic reduction (SCR) of NO with NH is an effective technique to remove NO from stationary sources, such as coal-fired power plant and industrial boilers. Some of elements in the fly ash deactivate the catalyst due to strong chemisorptions on the active sites. The poisons may act by simply blocking active sites or alter the adsorption behaviors of reactants and products by an electronic interaction. This review is mainly focused on the chemical poisoning on V O -based catalysts, environmental-benign catalysts and low temperature catalysts. Several common poisons including alkali/alkaline earth metals, SO and heavy metals etc. are referred and their poisoning mechanisms on catalysts are discussed. The regeneration methods of poisoned catalysts and the development of poison-resistance catalysts are also compared and analyzed. Finally, future research directions in developing poisoning resistance catalysts and facile efficient regeneration methods for SCR catalysts are proposed.

Keywords： flue gas     DeNO<sub>xsub>     SCR catalyst     poison and regeneration    

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Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization state and CFD simulation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1709-x

Abstract:

● Catalytic combustion in fluidized bed realizes efficient heat and mass transfer.

Keywords： Self-sustained catalytic combustion     Carbon monoxide     Cu<sub>1–xsub>Ce<sub>xsub>O<sub>ysub>     Fluidized    

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Band-gap tunable (Ga<sub>xsub>In<sub>1−sub><sub>xsub>)<sub>2sub>O<sub>3sub> layer Research Articles

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 10,   Pages 1370-1378 doi: 10.1631/FITEE.2000330

Abstract: The X-ray diffraction spectra clearly indicate that (GaIn)O films with Ga content varying from 0.11 to

Keywords： (GaxIn1−x)2O3薄膜；带隙可调谐；磁控溅射    

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

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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Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0976-9

Abstract: N O is a powerful greenhouse gas and plays an important role in destructing the ozone layer. This present work investigated the effects of Pd doping on N O formation over Pt/BaO/Al O catalyst. Three types of catalysts, Pt/BaO/Al O , Pt/Pd mechanical mixing catalyst (Pt/BaO/Al O +Pd/Al O ) and Pt-Pd co-impregnation catalyst (Pt-Pd/BaO/Al O ) were prepared by incipient wetness impregnation method. These catalysts were first evaluated in NSR activity tests using H /CO as reductants and then carefully characterized by BET, CO chemisorption, CO-DRIFTs and H -TPR techniques. In addition, temperature programmed reactions of NO with H /CO were conducted to obtain further information about N O formation mechanism. Compared with Pt/BaO/Al O , (Pt/BaO/Al O +Pd/Al O ) produced less N O and more NH during NO storage and reduction process, while an opposite trend was found over (Pt-Pd/BaO/Al O +Al O ). Temperature programmed reactions of NO with H /CO results showed that Pd/Al O component in (Pt/BaO/Al O +Pd/Al O ) played an important role in NO reduction to NH , and the formed NH could reduce NO to N leading to a decrease in N O formation. Most of N O formed over (Pt-Pd/BaO/Al O +Al O ) was originated from Pd/BaO/Al O component. H -TPR results indicated Pd-Ba interaction resulted in more difficult-to-reduce PdO species over Pd/BaO/Al O , which inhibits the NO dissociation and thus drives the selectivity to N O in NO reduction.

Keywords： NO<sub>xsub> storage reduction     Pt/BaO/Al<sub>2sub>O<sub>3sub>     Pd doping     N<sub>2sub>O formation    

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The effect of preparation conditions of Pt/Al

Lei YUAN, Xiang ZHENG, Kaijiao DUAN, Hao HU, Jinggang WANG, Seong Ihl WOO, Zhiming LIU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 457-463 doi: 10.1007/s11783-013-0512-5

Abstract: Selective catalytic reduction of NO by H in the presence of oxygen has been investigated over Pt/Al O catalysts pre-treated under different conditions. Catalyst preparation conditions exert significant influence on the catalytic performance, and the catalyst pre-treated by H or H then followed by O is much more active than that pre-treated by air. The higher surface area and the presence of metallic Pt over Pt/Al O pre-treated by H or pretreated by H then followed by O can contribute to the formation of NO , which then promotes the reaction to proceed at low temperatures.

Keywords： NO<sub>xsub> reduction     Pt/Al<sub>2sub>O<sub>3sub>     preparation condition     H<sub>2sub>-SCR    

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Title Author Date Type Operation

NO<sub>xsub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

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

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

NiFeRuO<sub>xsub> nanosheets on Ni foam as an electrocatalyst for efficient

Journal Article

Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered macroporous SrTiO decorated with ZnCdS

Journal Article

Recent advances in special morphologic photocatalysts for NO removal

Journal Article

Direct Evidence of Coal Swelling and Shrinkage with Injecting CO<sub>2sub> and N<sub>2sub> Using in-situ Synchrotron X-ray Microtomography

Guanglei Zhang, P.G. Ranjith, Herbert E. Huppert

Journal Article

Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Journal Article

Deciphering the Origins of P1-Induced Power Losses in Cu(In<sub>xsub>,Ga<sub>1–xsub>)Se<sub>2sub> (CIGS) Modules Through Hyperspectral Luminescence

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Journal Article

Chemical poison and regeneration of SCR catalysts for NO<sub>xsub>

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Journal Article

Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization state and CFD simulation

Journal Article

Band-gap tunable (Ga<sub>xsub>In<sub>1−sub><sub>xsub>)<sub>2sub>O<sub>3sub> layer

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Journal Article

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

Journal Article

Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Journal Article

The effect of preparation conditions of Pt/Al

Lei YUAN, Xiang ZHENG, Kaijiao DUAN, Hao HU, Jinggang WANG, Seong Ihl WOO, Zhiming LIU

Journal Article