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学者姓名:王树众

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< Page ,Total 80 >
Review on chromium coated zirconium alloy accident tolerant fuel cladding EI
期刊论文 | 2022 , 895 | Journal of Alloys and Compounds
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Abstract :

The Fukushima-Daiichi accident revealed that the zirconium fuel claddings have the significant safety risk of hydrogen detonation due to the strong oxidation and hydrogen release during the design basis accidents (DBA) and beyond design basis accidents (BDBA). Therefore, research and development of accident tolerant fuel (ATF) concepts that aim to improve nuclear fuel safety during normal operation, operational transients and possible accident scenarios have been boosted in the last decade. Deposition of protective coatings on Zircaloy cladding tubes has been considered as a near-term solution of enhanced ATF cladding. Among the candidate coating materials, there is no doubt that the research progress of Cr coating is the fastest around the world because of the advantages of such type of coating: excellent good chemical stability (including oxidation resistance and hydrothermal corrosion resistance), low thermal neutrons absorption cross-section, and excellent adherent. In this paper, the oxidation, diffusion, and mechanical properties of Cr-coated Zr alloys in normal operation conditions and accident conditions of nuclear reactors are reviewed. The factors that cause the failure of the coating are analyzed, and some questions that need to be clarified and further studied are proposed. © 2021 Elsevier B.V.

Keyword :

Nuclear reactor accidents Nuclear reactors Zircaloy Corrosion resistant coatings Oxidation resistance Cladding (coating) Inorganic coatings Diffusion coatings Chemical stability Chromium alloys Nuclear fuels Hydrogen

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GB/T 7714 Yang, Jianqiao , Steinbrück, Martin , Tang, Chongchong et al. Review on chromium coated zirconium alloy accident tolerant fuel cladding [J]. | Journal of Alloys and Compounds , 2022 , 895 .
MLA Yang, Jianqiao et al. "Review on chromium coated zirconium alloy accident tolerant fuel cladding" . | Journal of Alloys and Compounds 895 (2022) .
APA Yang, Jianqiao , Steinbrück, Martin , Tang, Chongchong , Große, Mirco , Liu, Junkai , Zhang, Jinming et al. Review on chromium coated zirconium alloy accident tolerant fuel cladding . | Journal of Alloys and Compounds , 2022 , 895 .
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Thermochemical methods for the treatment of municipal sludge EI SCIE
期刊论文 | 2021 , 311 | JOURNAL OF CLEANER PRODUCTION
WoS CC Cited Count: 1
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Abstract :

Rapid economic growth is making the disposal of municipal sludge non-negligible during the acceleration of urbanization. Thermochemical treatment has been proved to be of superiority with regard to volume reduction and product conversion of municipal sludge. This work provides a comprehensive review on thermochemical treatment methods of municipal sludge, including combustion, pyrolysis, hydrothermal carbonization, hydrothermal liquefaction, wet oxidation, supercritical water oxidation and gasification. Comparisons among these thermochemical methods are clarified from technological process, environmental risks, use of products and economic cost. Combustion, more specifically mono-incineration, is preferred for its rapid and obvious volume reduction of municipal sludge. While other methods are relatively uncompetitive now owing to difficulties on system operation and technological development. The combination of additives with atomized municipal sludge which is ejected by high-pressure air, and the coupling of different processes (e.g., pyrolysis) are potential optimization methods of combustion. Gasification provides an option for sustainable disposal of municipal sludge due to acceptable disposal costs and low environmental risks. It exhibits considerable emission decrease and energy saving effect. To compare thoroughly all treatment methods, effective evaluation like life cycle assessment methodology is necessary.

Keyword :

Wet oxidation Pyrolysis Thermochemical treatment Hydrothermal carbonization Municipal sludge Hydrothermal liquefaction Supercritical water oxidation Gasification Combustion

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GB/T 7714 Jiang, Guanyu , Xu, Donghai , Hao, Botian et al. Thermochemical methods for the treatment of municipal sludge [J]. | JOURNAL OF CLEANER PRODUCTION , 2021 , 311 .
MLA Jiang, Guanyu et al. "Thermochemical methods for the treatment of municipal sludge" . | JOURNAL OF CLEANER PRODUCTION 311 (2021) .
APA Jiang, Guanyu , Xu, Donghai , Hao, Botian , Liu, Lu , Wang, Shuzhong , Wu, Zhiqiang . Thermochemical methods for the treatment of municipal sludge . | JOURNAL OF CLEANER PRODUCTION , 2021 , 311 .
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Incipient corrosion of FeCrAl alloys in H3BO3- and LiOH-containing pure water at 360 degrees C and 18.5 MPa EI SCIE
期刊论文 | 2021 , 557 | JOURNAL OF NUCLEAR MATERIALS
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The demand of accident tolerant fuel cladding materials provides a momentum for the development of FeCrAl alloys. To prove its potential, this work studied the corrosion behavior of FeCrAl alloys in H3BO3- and LiOH- containing water at 360 degrees C and 18.5 MPa for 500 h. XPS, XRD, SEM, Raman and AFM analyses were employed to identify oxide films, and the early corrosion mechanism of FeCrAl was discussed. Duplex oxide films were found on the surface of FeCrAl. The inner layer was Fe-Cr-Al spinel, and the outer crystals was dominantly composed of Fe2O3 , accompanied by Fe3O4 , FeCr2O4, NiFe2O4 and Li2Fe3O4. Similar to FeCrAl, Zircaloy-4 showed negligible weight change. However, its surface corrosion was more severe, and the oxides formed were mainly ZrO2 and Zr3O1-x. Li6Zr2O7 and other sub oxides were also observed. (C) 2021 Elsevier B.V. All rights reserved.

Keyword :

FeCrAl alloys Zircaloy-4 Water environment Corrosion

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GB/T 7714 Jiang, Guanyu , Xu, Donghai , Yang, Wanpeng et al. Incipient corrosion of FeCrAl alloys in H3BO3- and LiOH-containing pure water at 360 degrees C and 18.5 MPa [J]. | JOURNAL OF NUCLEAR MATERIALS , 2021 , 557 .
MLA Jiang, Guanyu et al. "Incipient corrosion of FeCrAl alloys in H3BO3- and LiOH-containing pure water at 360 degrees C and 18.5 MPa" . | JOURNAL OF NUCLEAR MATERIALS 557 (2021) .
APA Jiang, Guanyu , Xu, Donghai , Yang, Wanpeng , Liu, Lu , Guo, Shuwei , Wang, Shuzhong . Incipient corrosion of FeCrAl alloys in H3BO3- and LiOH-containing pure water at 360 degrees C and 18.5 MPa . | JOURNAL OF NUCLEAR MATERIALS , 2021 , 557 .
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Numerical study of a turbulent co-axial non-premixed flame for methanol hydrothermal combustion: Comparison of the EDC and FGM models EI SCIE
期刊论文 | 2021 , 169 | Journal of Supercritical Fluids
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Abstract :

Eddy dissipation concept (EDC) model and flamelet generated manifolds (FGM) model are developed separately to study the temperature profiles and extinction limits of non-premixed hydrothermal flames. Predictions by the two models are evaluated comparatively by experimental data in literatures. FGM model shows relatively better prediction of temperature than EDC model in the near nozzle field. Extinction temperatures can be predicted by EDC model with deviations of 10–33 K. The extinction flow rates predicted by the FGM model are higher than those by the EDC model. Flow fields and reaction source terms are analysed to identify the inherent mechanism leading different results by the two models. It is illustrated that the positive effect of turbulence on reaction rate near the nozzle by the FGM model is the essential reason causing different flame characteristics from the EDC model by which the turbulence only has negative effect on reaction rate. © 2020 Elsevier B.V.

Keyword :

Reaction rates Turbulence Nozzles

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GB/T 7714 Ren, Mengmeng , Wang, Shuzhong , Romero-Anton, N et al. Numerical study of a turbulent co-axial non-premixed flame for methanol hydrothermal combustion: Comparison of the EDC and FGM models [J]. | Journal of Supercritical Fluids , 2021 , 169 .
MLA Ren, Mengmeng et al. "Numerical study of a turbulent co-axial non-premixed flame for methanol hydrothermal combustion: Comparison of the EDC and FGM models" . | Journal of Supercritical Fluids 169 (2021) .
APA Ren, Mengmeng , Wang, Shuzhong , Romero-Anton, N , Zhao, Junxue , Zou, Chong , Roekaerts, Dirk . Numerical study of a turbulent co-axial non-premixed flame for methanol hydrothermal combustion: Comparison of the EDC and FGM models . | Journal of Supercritical Fluids , 2021 , 169 .
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Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction EI SCIE
期刊论文 | 2021 , 60 (21) , 7966-7974 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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Abstract :

Hydrothermal liquefaction of the third-generation biomass represented by microalgae can produce biocrude. However, the directly obtained biocrude has a high heteroatom content and a low higher heating value (HHV), which cannot meet the standards of biofuel. In this work, water-insoluble biocrude which was directly gained from microalgae hydrothermal liquefaction (HTL) was upgraded under four kinds of solvents (i.e., methanol, ethanol, acetone, and H2O) and one type of catalyst (H2O + Ru/C) at 240-400 degrees C for 1 h. The results show that the HHV and C and H contents of upgraded bio-oil increased and the O/C ratio decreased significantly after solvent upgrading. The highest upgraded bio-oil yield appeared in the case of ethanol upgrading and reached the maximum value of 82.8 wt % at 360 degrees C. The upgraded bio-oil yield of acetone upgrading increased from 45.8 to 68.2 wt % as the temperature increased within 240-400 degrees C. Also, esterification reactions between alcohol and acid in the supercritical system remarkably reduced the content of carboxyl-containing organic matter.

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GB/T 7714 Xu, Donghai , Wei, Ning , Liang, Yu et al. Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2021 , 60 (21) : 7966-7974 .
MLA Xu, Donghai et al. "Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60 . 21 (2021) : 7966-7974 .
APA Xu, Donghai , Wei, Ning , Liang, Yu , Wang, Han , Liu, Liang , Wang, Shuzhong . Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2021 , 60 (21) , 7966-7974 .
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Reply to 'comment on 'Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction': Problems Pitfalls and Solutions' EI
期刊论文 | 2021 , 60 (32) , 12136-12137 | Industrial and Engineering Chemistry Research
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GB/T 7714 Xu, Donghai , Wei, Ning , Liang, Yu et al. Reply to 'comment on 'Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction': Problems Pitfalls and Solutions' [J]. | Industrial and Engineering Chemistry Research , 2021 , 60 (32) : 12136-12137 .
MLA Xu, Donghai et al. "Reply to 'comment on 'Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction': Problems Pitfalls and Solutions'" . | Industrial and Engineering Chemistry Research 60 . 32 (2021) : 12136-12137 .
APA Xu, Donghai , Wei, Ning , Liang, Yu , Wang, Han , Liu, Liang , Wang, Shuzhong . Reply to 'comment on 'Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction': Problems Pitfalls and Solutions' . | Industrial and Engineering Chemistry Research , 2021 , 60 (32) , 12136-12137 .
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High-temperature corrosion of Fe-Ni-based alloy HR6W, Ni-based alloys Haynes 282 and Inconel 740 in supercritical water at 450 degrees C and 25 MPa EI SCIE
期刊论文 | 2021 , 878 | JOURNAL OF ALLOYS AND COMPOUNDS
WoS CC Cited Count: 1
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Abstract :

In this work, Fe-Ni-based alloy HR6W, Ni-based alloys Haynes 282 and Inconel 740 were investigated in supercritical water at 450 degrees C and 25 MPa for 30-200 h. HR6W, Haynes 282 and Inconel 740 all showed corrosion weight gain in the whole exposure duration and the oxidation kinetics follow the parabolic law. HR6W and Inconel 740 samples displayed lower corrosion weight gain and better corrosion resistance under experimental conditions. A layer composed of network-shaped oxides was formed on the surface of Inconel 740 sample. The height of the oxide particles on Haynes 282 sample surface is not consistent enough after exposure in supercritical water for 200 h, and there was large amount of vacancies among oxide clusters, which increases the risk of substrate destruction. The dominant phases on the surface of HR6W, Haynes 282 and Inconel 740 samples were [FeCr2O4, NiFe2O4], [Fe3O4, NiFe2O4 and Cr2O3], and [Fe2O3, Fe3O4], respectively. (C) 2021 Elsevier B.V. All rights reserved.

Keyword :

Fe-Ni-based alloy Corrosion Oxide layer Supercritical water Oxidation Ni-based alloy

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GB/T 7714 Guo, Shuwei , Xu, Donghai , Jiang, Guanyu et al. High-temperature corrosion of Fe-Ni-based alloy HR6W, Ni-based alloys Haynes 282 and Inconel 740 in supercritical water at 450 degrees C and 25 MPa [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2021 , 878 .
MLA Guo, Shuwei et al. "High-temperature corrosion of Fe-Ni-based alloy HR6W, Ni-based alloys Haynes 282 and Inconel 740 in supercritical water at 450 degrees C and 25 MPa" . | JOURNAL OF ALLOYS AND COMPOUNDS 878 (2021) .
APA Guo, Shuwei , Xu, Donghai , Jiang, Guanyu , Jing, Zefeng , Wang, Shuzhong , Lv, Heng . High-temperature corrosion of Fe-Ni-based alloy HR6W, Ni-based alloys Haynes 282 and Inconel 740 in supercritical water at 450 degrees C and 25 MPa . | JOURNAL OF ALLOYS AND COMPOUNDS , 2021 , 878 .
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Supercritical water gasification and partial oxidation of municipal sewage sludge: An experimental and thermodynamic study EI SCIE
期刊论文 | 2021 , 46 (1) , 89-99 | International Journal of Hydrogen Energy
WoS CC Cited Count: 8
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Abstract :

Supercritical gasification (SCWG) and supercritical partial oxidation (SCWPO) technologies have emerged as preferred means of converting wet biomass to hydrogen-rich gases. We experimentally investigated the effects of moisture content, pressure and oxidation coefficient (n) on mole fraction, yield, gasification efficiency and energy recovery of gaseous products from SCWG or SCWPO of municipal sewage sludge, as well as on the carbon and nitrogen contents in liquid products. Potential of sludge for producing gaseous products was thermodynamically analyzed by an Aspen Plus model. The results show that 87 wt%, 25 MPa and n = 0 were optimum conditions for sludge gasification. Sludge with 87 wt% moisture content was pumpable at 75 °C, and further increasing the moisture content decreased the heating value and energy recovery of gaseous products. Pressure played little role in both the experimental and equilibrium gas yields. Highest mole fractions and yields of H2 and CH4 were achieved at n = 0. © 2020 Hydrogen Energy Publications LLC

Keyword :

Moisture determination Sewage sludge Moisture Gasification Oxidation

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GB/T 7714 Qian, Lili , Wang, Shuzhong , Wang, Shuang et al. Supercritical water gasification and partial oxidation of municipal sewage sludge: An experimental and thermodynamic study [J]. | International Journal of Hydrogen Energy , 2021 , 46 (1) : 89-99 .
MLA Qian, Lili et al. "Supercritical water gasification and partial oxidation of municipal sewage sludge: An experimental and thermodynamic study" . | International Journal of Hydrogen Energy 46 . 1 (2021) : 89-99 .
APA Qian, Lili , Wang, Shuzhong , Wang, Shuang , Zhao, Shuang , Zhang, Bo . Supercritical water gasification and partial oxidation of municipal sewage sludge: An experimental and thermodynamic study . | International Journal of Hydrogen Energy , 2021 , 46 (1) , 89-99 .
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Mechanism Analysis of Coal with CuO in the in Situ Gasification Chemical-Looping Combustion and in Situ Gasification Chemical-Looping with Oxygen Uncoupling Process EI SCIE
期刊论文 | 2021 , 35 (1) , 618-625 | Energy and Fuels
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Temperature showed obvious effect on the reaction rate and conversion when CuO was used as an oxygen carrier (OC), in which in situ gasification chemical-looping combustion (iG-CLC) occurred at low temperature and in situ gasification chemical-looping with oxygen uncoupling (iG-CLOU) took place at high temperature. This study focused on the reaction mechanism investigation of the coal iG-CLC and iG-CLOU process. The reaction mechanism and definite temperature limits between iG-CLC and iG-CLOU could provide useful information for the development of mixed CuO-based OCs. In this study, the experiments of coal with CuO were tested in N2 and CO2 atmospheres. Results showed that char was mainly oxidized by CuO in the temperature range of 620-810 °C in a N2 atmosphere. Chemical-looping combustion changed into chemical-looping with oxygen uncoupling, in which the reaction of char with gaseous oxygen was dominated when temperature was above 810 °C. Under a CO2 atmosphere, the initial temperature of char combustion was still 620 °C, but the reaction path of char combustion changed. From about 746 °C, char could be gasified by CO2 first, and then the gasification product was oxidized by CuO. With the temperature increased to 775 °C, the oxygen released from CuO led to the reaction rate increasing. Char could be gasified by CO2, and then the gasification product preferentially reacted with gaseous oxygen. Moreover, char gasification was also the rate-limiting step in the iG-CLOU process. Considering the reactivity and stability of CuO, alkali metals and alkaline earth metals with low content and inert support that could improve the high temperature resistance should be used as modifications of CuO in the iG-CLOU process. ©

Keyword :

Alkalinity Reaction rates Coal combustion Alkali metals In situ coal combustion Gasification Copper oxides Carbon dioxide Atmospheric temperature Coal Chemical analysis Oxygen

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GB/T 7714 Kuang, Cao , Wang, Shuzhong , Luo, Ming et al. Mechanism Analysis of Coal with CuO in the in Situ Gasification Chemical-Looping Combustion and in Situ Gasification Chemical-Looping with Oxygen Uncoupling Process [J]. | Energy and Fuels , 2021 , 35 (1) : 618-625 .
MLA Kuang, Cao et al. "Mechanism Analysis of Coal with CuO in the in Situ Gasification Chemical-Looping Combustion and in Situ Gasification Chemical-Looping with Oxygen Uncoupling Process" . | Energy and Fuels 35 . 1 (2021) : 618-625 .
APA Kuang, Cao , Wang, Shuzhong , Luo, Ming , Zhao, Jun . Mechanism Analysis of Coal with CuO in the in Situ Gasification Chemical-Looping Combustion and in Situ Gasification Chemical-Looping with Oxygen Uncoupling Process . | Energy and Fuels , 2021 , 35 (1) , 618-625 .
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Supercritical water oxidation of glyphosate wastewater EI SCIE
期刊论文 | 2021 , 168 , 122-134 | CHEMICAL ENGINEERING RESEARCH & DESIGN
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In this paper, the treatment characteristics of glyphosate wastewater based on supercritical water oxidation (SCWO) technology is studied both in spiral coiled tube reactor and tank reactor, including the influences of operating parameters such as reaction temperature, reaction pressure, oxidation coefficient, residence time, and initial properties of wastewater such as organic concentration, pH value on the degradation of COD and NH3-N with H2O2 as oxidant, and the different reaction characteristics in different batch reactors are also analyzed in detail. Furthermore, the simplified SCWO reaction pathway of glyphosate wastewater is also proposed to understand the degradation process better. Finally, a comprehensive SCWO system for treating glyphosate wastewater efficiently, and transforming and utilizing organic nitrogen as well as organophosphorus directionally is proposed and designed, including SCWO unit, ammonia distillation unit, phosphate recovery unit, and biochemical treatment unit, which can enhance the treatment efficiency and economic benefits synergistically, and provide basic data for the industrialization of glyphosate wastewater degradation based on SCWO technology. ? 2021 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Keyword :

Directional transformation System design Batch reactor Supercritical water oxidation Glyphosate wastewater

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GB/T 7714 Li, Jianna , Wang, Shuzhong , Li, Yanhui et al. Supercritical water oxidation of glyphosate wastewater [J]. | CHEMICAL ENGINEERING RESEARCH & DESIGN , 2021 , 168 : 122-134 .
MLA Li, Jianna et al. "Supercritical water oxidation of glyphosate wastewater" . | CHEMICAL ENGINEERING RESEARCH & DESIGN 168 (2021) : 122-134 .
APA Li, Jianna , Wang, Shuzhong , Li, Yanhui , Yang, Chuang , Xu, Donghai , Zhang, Jie et al. Supercritical water oxidation of glyphosate wastewater . | CHEMICAL ENGINEERING RESEARCH & DESIGN , 2021 , 168 , 122-134 .
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