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学者姓名:王树众

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< Page ,Total 66 >
Effect Mechanism of Auxiliary Fuel in Supercritical Water: A Review SCIE
期刊论文 | 2019 , 58 (4) , 1480-1494 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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Abstract :

Supercritical water oxidation is a promising alternative for treatment of wastewater and sludge. The addition of auxiliary fuel can achieve the optimization of the system. Owing to the discrepancy in the fuel parameter and reaction condition, the auxiliary fuel presents two different behavior mechanisms in supercritical water, co-oxidation and hydrothermal combustion. The process mechanism, kinetics analysis, and effect behavior for these two processes were systematically reviewed in this work. The co-oxidation between auxiliary fuel compounds, such as methanol, ethanol, isopropyl alcohol, etc. and ammonia, polychlorinated biphenyls was analyzed, and the mixing kinetics models and mechanism investigation approaches were summerized. Besides, the process analysis, kinetics model, and interaction during the supercritical hydrothermal combustion with higher concentration of auxiliary fuel were discussed. Finally, a supercritical water oxidation system with optimized auxiliary fuel was proposed and evaluated by the mechanism-based kinetics simulation, and further research needs were put forward.

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GB/T 7714 Zhang, Jie , Wang, Shuzhong , Ren, Mengmeng et al. Effect Mechanism of Auxiliary Fuel in Supercritical Water: A Review [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2019 , 58 (4) : 1480-1494 .
MLA Zhang, Jie et al. "Effect Mechanism of Auxiliary Fuel in Supercritical Water: A Review" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58 . 4 (2019) : 1480-1494 .
APA Zhang, Jie , Wang, Shuzhong , Ren, Mengmeng , Lu, Jinling , Chen, Senlin , Zhang, Huamin . Effect Mechanism of Auxiliary Fuel in Supercritical Water: A Review . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2019 , 58 (4) , 1480-1494 .
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Supercritical CO2-water-shale interactions and their effects on element mobilization and shale pore structure during stimulation EI SCIE
期刊论文 | 2019 , 202 , 109-127 | International Journal of Coal Geology
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Abstract :

There are many advantages to using supercritical carbon dioxide (ScCO2) fracturing technology to exploit shale gas reservoirs in China, including minimal damage to the environment or formation, and displacing methane (CH4) in the adsorbed state. When ScCO2 enters fractures in the formation, ScCO2-water-shale interactions may affect the physicochemical properties of shale. In this study, a high-pressure reaction system was adopted to simulate ScCO2-water-shale interactions under ScCO2 stimulation conditions. The element mobilization and pore structure before and after the reaction were measured using ICP-MS, XRF. The results show that the major elements, including Ca, Mg, Na, K, and Al, exhibit varying degrees of mobilization after the interactions because of dissolution of carbonate and silicate minerals in shale samples. Compared with the major elements, trace elements have a lower mobility, quantified as <13.97%. The specific surface areas and pore volumes of two shale samples increase at different degrees after the reaction. The interactions have a more significant influence on the micropores. In addition, fractal features of the shale pore structure were analyzed. The fractal dimensions of the shale samples increase after the reaction, indicating that pore surface roughness increases, and pore structure morphology gradually transforms from regular to complex. © 2018 Elsevier B.V.

Keyword :

Element mobilization Fractal feature Major elements Minimal damage Physicochemical property Shale gas reservoirs Supercritical carbon dioxides Supercritical CO2

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GB/T 7714 Luo, Xiangrong , Ren, Xiaojuan , Wang, Shuzhong . Supercritical CO2-water-shale interactions and their effects on element mobilization and shale pore structure during stimulation [J]. | International Journal of Coal Geology , 2019 , 202 : 109-127 .
MLA Luo, Xiangrong et al. "Supercritical CO2-water-shale interactions and their effects on element mobilization and shale pore structure during stimulation" . | International Journal of Coal Geology 202 (2019) : 109-127 .
APA Luo, Xiangrong , Ren, Xiaojuan , Wang, Shuzhong . Supercritical CO2-water-shale interactions and their effects on element mobilization and shale pore structure during stimulation . | International Journal of Coal Geology , 2019 , 202 , 109-127 .
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Catalytic performances of Ni-based catalysts on supercritical water gasification of phenol solution and coal-gasification wastewater SCIE
期刊论文 | 2019 , 44 (7) , 3470-3480 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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Activity and stability of the supported Ni-based catalysts for the gasification performances of phenol solution and coal-gasification wastewater in supercritical water were studied in a continuous reactor at 480 degrees C, 25 MPa and oxygen ratio of 0.2 for 50 h operation. The in- fluences of the supports (gamma-Al2O3, active carbon (AC) and carbon nanotube (CNT)) on gas yields, gasification efficiencies for phenol solution were investigated, and the loading amount of Ni were optimized. Results showed that the catalytic activity and the stability of the catalysts followed the order of Ni/CNT > Ni/AC > Ni/gamma-Al2O3. The activity of Ni/AC and Ni/gamma-Al(2)O(3 )decreased after 30 h continuous operation, and there occurred significant leaching of Ni2+. For Ni/CNT catalyst, H-2 yield increased obviously when the loading amount of Ni lower than 15 wt%, while increased little at higher loading amount. Then, 15 wt% Ni/CNT with a thickness of 1.5 mm was coated on 316 L stainless steel (SS316L, an economic material usually used as the reactor material), which can act as a "catalytic tube wall" in reactor. The catalytic activity and corrosion resistance of Ni/CNT/SS316L for the gasification of real coal-gasification wastewater were studied. Results showed that Ni/CNT/SS316L gave a great positive effect on H-2 production. H-2 yield increased from 25.36 mmol/g (total organic carbon) without catalyst to 75.12 mmol/g (total organic carbon) with Ni/CNT/ SS316L after operated for 20 h, respectively. However, obvious pealing of the coating was found after 50 h operation. Further study is necessary for the improvement of the coating preparation method. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Keyword :

Ni Phenol Supercritical water gasification Catalyst Coal-gasification wastewater

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GB/T 7714 Wang, Yuzhen , Zhu, Yitong , Liu, Zhuan et al. Catalytic performances of Ni-based catalysts on supercritical water gasification of phenol solution and coal-gasification wastewater [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2019 , 44 (7) : 3470-3480 .
MLA Wang, Yuzhen et al. "Catalytic performances of Ni-based catalysts on supercritical water gasification of phenol solution and coal-gasification wastewater" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 44 . 7 (2019) : 3470-3480 .
APA Wang, Yuzhen , Zhu, Yitong , Liu, Zhuan , Wang, Laibin , Xu, Donghai , Fang, Changqing et al. Catalytic performances of Ni-based catalysts on supercritical water gasification of phenol solution and coal-gasification wastewater . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2019 , 44 (7) , 3470-3480 .
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Supercritical water oxidation of quinoline with moderate preheat temperature and initial concentration EI Scopus SCIE
期刊论文 | 2019 , 236 , 1408-1414 | Fuel
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Abstract :

This work reports an experimental study on supercritical water oxidation of quinoline. Moderate preheat temperature (420 °C–510 °C) and initial concentration (1 wt%–10 wt%) are selected to address the possibility of utilizing the heat released during the reaction, in order to realize high conversion rate at relatively low preheat temperature. The effects of temperature, residence time, oxidation ratio, pressure and concentration are analyzed. The results show that considerable conversion can happen at relatively low preheat temperature, while increase in temperature will significantly promote the complete conversion. The yield of carbon dioxide increases with the residence time but there is an upper limit due to the stronger dependence on oxidizer concentration, for which an estimated reaction order is 1.90. When the quinoline concentration is larger than 8 wt%, clear exothermic peaks with temperature rise about 100 °C are detected. These exothermic peaks can be interpreted as a sign of ignition interrupted by the heat loss to the surrounding salt bath. An analogy is made between the start temperatures of these exothermic peaks and the ignition temperatures reported in methanol and isopropanol hydrothermal flame research. We conclude that quinoline solutions can be ignited without co-fuels, at comparable ignition temperature as methanol and isopropanol around 450 °C. © 2018 Elsevier Ltd

Keyword :

Heat release Initial concentration Preheat temperature Quinoline Supercritical water oxidation

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GB/T 7714 Ren, Mengmeng , Wang, Shuzhong , Yang, Chuang et al. Supercritical water oxidation of quinoline with moderate preheat temperature and initial concentration [J]. | Fuel , 2019 , 236 : 1408-1414 .
MLA Ren, Mengmeng et al. "Supercritical water oxidation of quinoline with moderate preheat temperature and initial concentration" . | Fuel 236 (2019) : 1408-1414 .
APA Ren, Mengmeng , Wang, Shuzhong , Yang, Chuang , Xu, Haitao , Guo, Yang , Roekaerts, Dirk . Supercritical water oxidation of quinoline with moderate preheat temperature and initial concentration . | Fuel , 2019 , 236 , 1408-1414 .
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CaO-based chemical looping gasification of biomass for the production of hydrogen-enriched gas and CO2 negative emissions: A review EI Scopus
期刊论文 | 2018 , 19 (3-4) , 257-302 | International Journal of Energy for a Clean Environment
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Abstract :

Hydrogen as an energy carrier plays an important role in the energy consumption system. Compared to other technologies, CaO-based chemical looping gasifi cation of biomass (CaO-based CLGB) is a sustainable way for producing hydrogen-enriched gas and CO2 negative emissions. As the residence time of fi xed carbon in a gasifi er is short, the CO2 capture effi ciency of the CaO-based CLGB system is low. To conquer this problem, the CaO-based CLGB con fi guring with carbon stripper was discussed in this paper. The decay of the CO2 capture capacity of natural CaO-based sorbents is a main factor to restrain the development of CaO-based CLGB. Some promising methods have been applied to solve this problem. According to the purpose of technology, three representative technologies were discussed in this paper. Compared to other technologies, replacing natural or synthetic CaO-based sorbents is an economic and environmentally friendly solution. Calcium-rich industrial waste (CRIW) combined with the characteristics of cheapness, wide-source and environmental protection is an ideal substitute of CaO-based sorbents for replacing natural or synthetic CaO-based sorbents. The prospect of CRIW as a CaO-based sorbent was discussed in this paper. © 2018 by Begell House, Inc.

Keyword :

Biomass Gasification Chemical looping CO2 capture Energy carriers Enriched gas Production of hydrogen Residence time

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GB/T 7714 Cai, Jianjun , Wang, Shuzhong , Zeng, Ronghua et al. CaO-based chemical looping gasification of biomass for the production of hydrogen-enriched gas and CO2 negative emissions: A review [J]. | International Journal of Energy for a Clean Environment , 2018 , 19 (3-4) : 257-302 .
MLA Cai, Jianjun et al. "CaO-based chemical looping gasification of biomass for the production of hydrogen-enriched gas and CO2 negative emissions: A review" . | International Journal of Energy for a Clean Environment 19 . 3-4 (2018) : 257-302 .
APA Cai, Jianjun , Wang, Shuzhong , Zeng, Ronghua , Luo, Ming , Tang, Xingying . CaO-based chemical looping gasification of biomass for the production of hydrogen-enriched gas and CO2 negative emissions: A review . | International Journal of Energy for a Clean Environment , 2018 , 19 (3-4) , 257-302 .
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Corrosion behavior of candidate materials for supercritical water oxidation reactor for sewage sludge processing plants EI Scopus
会议论文 | 2018 , 278 SSP , 107-111 | 7th International Conference on Manufacturing Engineering and Process, ICMEP 2018
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In this study, corrosion behavior of Incoloy 800 was studied in supercritical water containing sewage sludge and oxygen at various temperature from subcritical to supercritical environment. Surface and cross-section morphologies of the oxide films on Incoloy 800 was observed by scanning electron microscope. Corrosion will be obviously accelerated by increasing temperature. And the addition of oxygen in corrosion medium will cause the formation of various inorganic salts, forming a salt deposit layer on sample surface. © 2018 Trans Tech Publications, Switzerland.

Keyword :

Candidate materials Cross-section morphology Increasing temperatures Nickel based alloy Sludge Sludge processing plants Supercritical water Supercritical water oxidation

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GB/T 7714 Yang, Jianqiao , Wang, Shuzhong , Lei, Jie et al. Corrosion behavior of candidate materials for supercritical water oxidation reactor for sewage sludge processing plants [C] . 2018 : 107-111 .
MLA Yang, Jianqiao et al. "Corrosion behavior of candidate materials for supercritical water oxidation reactor for sewage sludge processing plants" . (2018) : 107-111 .
APA Yang, Jianqiao , Wang, Shuzhong , Lei, Jie , Xu, Haitao , Zhang, Yishu , Xu, Donghai . Corrosion behavior of candidate materials for supercritical water oxidation reactor for sewage sludge processing plants . (2018) : 107-111 .
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Corrosion behavior of incoloy 825 in high temperature vapor containing sodium chloride EI Scopus
会议论文 | 2018 , 278 SSP , 102-106 | 7th International Conference on Manufacturing Engineering and Process, ICMEP 2018
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Abstract :

Corrosion behavior of Incoloy 825 was studied in high temperature vapor with high concentration of NaCl. After 80 h exposure, a bi-layer structure was formed on sample surface after exposure. The outer layer is consisted of loose and large-grain oxides, and the inner layer is composed of fine-grain oxide. The whole layer was identified to be CrOOH/Fe3O4/Cr2O3/Incoloy 825 from outer to inner. © 2018 Trans Tech Publications, Switzerland.

Keyword :

Bi-layer structure Corrosion behavior Fine grains High temperature NaCl Nickel based alloy Sample surface Supercritical water gasification

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GB/T 7714 Yang, Jianqiao , Wang, Shuzhong , Wang, Dong et al. Corrosion behavior of incoloy 825 in high temperature vapor containing sodium chloride [C] . 2018 : 102-106 .
MLA Yang, Jianqiao et al. "Corrosion behavior of incoloy 825 in high temperature vapor containing sodium chloride" . (2018) : 102-106 .
APA Yang, Jianqiao , Wang, Shuzhong , Wang, Dong , Li, Jianna , Xu, Donghai . Corrosion behavior of incoloy 825 in high temperature vapor containing sodium chloride . (2018) : 102-106 .
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Oxidation of Dyeing Sludge in Supercritical Water EI Scopus
会议论文 | 2018 , 394 (5) | 2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering, ACMME 2018
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In this study, the effect of SCWO treatment, transformation characteristics of heavy metals and corrosion of Ni-based alloy 625 during dyeing sludge supercritical water oxidation (SCWO) were investigated. The experiment carried out at 580°C, 25MPa, oxidation coefficient of 1.3, reaction residence time 10min. The removal rate of COD reached 99.3% at the optimum reaction conditions which means the COD is almost completely destructed. Results of heavy metals determination showed that the concentration of Cu in the liquid products was 0.266mg/L, while Zn and Pb could not be detected under the experimental conditions. This implied that Cu, Zn and Pb in residues after SCWO treatment were more stable than that in raw sludge. The corrosion behaviour of Ni-based alloy 625 was discussed in different conditions. Consequently, it is believed that SCWO treatment is an effective alternative for safety disposal of dyeing sludge. © 2018 Published under licence by IOP Publishing Ltd.

Keyword :

Corrosion behaviour Experimental conditions Liquid products Optimum reaction conditions Removal rate of cods Residence time Supercritical water Supercritical water oxidation

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GB/T 7714 Xu, Tiantian , Wang, Shuzhong , Wang, Dong et al. Oxidation of Dyeing Sludge in Supercritical Water [C] . 2018 .
MLA Xu, Tiantian et al. "Oxidation of Dyeing Sludge in Supercritical Water" . (2018) .
APA Xu, Tiantian , Wang, Shuzhong , Wang, Dong , Li, Jianna , Yang, Chuang , Zhang, Yishu . Oxidation of Dyeing Sludge in Supercritical Water . (2018) .
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Rheological Properties of BCG-CO2 Fracturing Fluid for Shale Gas EI Scopus
会议论文 | 2018 , 186 (4)
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© Published under licence by IOP Publishing Ltd. BCG-CO2 fracturing fluid system is especially suitable for shale gas stimulation with advantage of minimizing the actual water consumption, reducing the damage to formation, recovering more rapidly and efficiently, etc. A major objective of this article is to ascertain the rheological properties of BCG-CO2 fracturing fluid in a wide range of experimental conditions for guiding the selection of fracturing parameters. The experimental results showed that as the temperature reaches 35 °C, the effective viscosity of BCG-CO2 fracturing fluid has an obvious increase. Apparently the shear rate change below 1000 s-1 is sharper than that above 1000 s-1. The effective viscosity presents an increase trend with increasing foam quality under foamed conditions. It has been concluded that the key factors influencing rheological characteristics of BCG-CO2 fracturing fluid are both temperature and foam quality, and the exponential function form can be used to describe the change rule approximately.

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GB/T 7714 Wang, Shuzhong , Luo, Xiangrong , Jing, Zefeng . Rheological Properties of BCG-CO2 Fracturing Fluid for Shale Gas [C] . 2018 .
MLA Wang, Shuzhong et al. "Rheological Properties of BCG-CO2 Fracturing Fluid for Shale Gas" . (2018) .
APA Wang, Shuzhong , Luo, Xiangrong , Jing, Zefeng . Rheological Properties of BCG-CO2 Fracturing Fluid for Shale Gas . (2018) .
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Study on air gasification characteristics of straw in tube furnace EI Scopus
会议论文 | 2018 , 188 (1) | 3rd International Conference on New Energy and Future Energy System, NEFES 2018
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© Published under licence by IOP Publishing Ltd. An experimental study on air gasification of straw was conducted in a tube furnace. The effect of the equivalence ratio (0.1-0.4) and temperature (600-900°C) on various gasification results, including gas composition and vaporized residue was investigated. The equivalence ratio(ER) appeared to have a significant effect on the result of gasification, and the experiment demonstrated the optimal gasification parameters (ER is approximately at 0.2, T is at 800°C). Under this operating condition, the residue after gasification of straw air accounts for about 7.39% of the original straw material, the combustible components in the gasification synthesis gas occupy 71.01% of the total volume, the H2 content is 17.49%, the CO content is 38.02% and the CH4 content is 15.49%. The intersection of the CO and CO2 line charts has realistic implications for the selection of the optimal gas conditions (T, ER) and the increase of gasification efficiency.

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GB/T 7714 Zeng, R. H. , Wang, S. Z. , Cai, J. J. . Study on air gasification characteristics of straw in tube furnace [C] . 2018 .
MLA Zeng, R. H. et al. "Study on air gasification characteristics of straw in tube furnace" . (2018) .
APA Zeng, R. H. , Wang, S. Z. , Cai, J. J. . Study on air gasification characteristics of straw in tube furnace . (2018) .
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