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学者姓名:王树众

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< Page ,Total 29 >
Supercritical CO2-water-shale interactions and their effects on element mobilization and shale pore structure during stimulation EI
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 等. "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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Review of hydrogen production using chemical-looping technology EI SCIE Scopus
期刊论文 | 2018 , 81 , 3186-3214 | RENEWABLE & SUSTAINABLE ENERGY REVIEWS
WoS CC Cited Count: 18 SCOPUS Cited Count: 25
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Abstract :

Hydrogen is an attractive energy carrier due to its potentially high energy efficiency and low generation of pollutants, which can be used for transportation and stationary power generation. However, hydrogen is not readily available in sufficient quantities and the production cost is still high. Steam methane reforming (SMR) process is now the most widely used technology for H-2 production, but this process is complex and cannot get thorough carbon capture. Hydrogen production using chemical looping technology has received a great deal of attention in recent years because it can produce hydrogen with higher process efficiency and can capture carbon dioxide. Many researchers have carried out intensive research work on the hydrogen production processes using chemical looping technology. Based on the previous studies stated in the literature, the authors try to give an overview on the recent advances of two categories, chemical looping reforming (CLR) and chemical looping hydrogen production (CLH) processes. Besides, the characteristics of the processes are pointed out based on the comparison with the conventional SMR process. The existing technical problems and the aspects of future research of each approach are also summarized.

Keyword :

Chemical-looping Oxygen carrier Hydrogen CO2 capture

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GB/T 7714 Luo, Ming , Yi, Yang , Wang, Shuzhong et al. Review of hydrogen production using chemical-looping technology [J]. | RENEWABLE & SUSTAINABLE ENERGY REVIEWS , 2018 , 81 : 3186-3214 .
MLA Luo, Ming et al. "Review of hydrogen production using chemical-looping technology" . | RENEWABLE & SUSTAINABLE ENERGY REVIEWS 81 (2018) : 3186-3214 .
APA Luo, Ming , Yi, Yang , Wang, Shuzhong , Wang, Zhuliang , Du, Min , Pan, Jianfeng et al. Review of hydrogen production using chemical-looping technology . | RENEWABLE & SUSTAINABLE ENERGY REVIEWS , 2018 , 81 , 3186-3214 .
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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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Friction Performance of BCG-CO2 Fracturing Fluid for Shale Gas EI Scopus
会议论文 | 2018 , 186 (4)
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Abstract :

© 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 friction performance of BCG-CO2 fracturing fluid in a wide range of experimental conditions for guiding the selection of fracturing parameters. The experimental results showed that the frictional resistance coefficient levels off under the flow velocity greater than 1 m/s. For the impact of the foam quality on the friction resistance coefficient, the completely opposite change rule is showed under foamed and unfoamed conditions.

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GB/T 7714 Wang, Shuzhong , Luo, Xiangrong , Jing, Zefeng . Friction Performance of BCG-CO2 Fracturing Fluid for Shale Gas [C] . 2018 .
MLA Wang, Shuzhong et al. "Friction Performance of BCG-CO2 Fracturing Fluid for Shale Gas" . (2018) .
APA Wang, Shuzhong , Luo, Xiangrong , Jing, Zefeng . Friction Performance of BCG-CO2 Fracturing Fluid for Shale Gas . (2018) .
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Influences of oxygen on corrosion characteristics of TiO2/316L stainless steel in supercritical water EI
期刊论文 | 2018 | International Journal of Hydrogen Energy
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Abstract :

Supercritical water gasification (SCWG) is a promising technology for converting organic wastes to hydrogen. Less amount of oxygen is beneficial for increasing hydrogen generation rate. However, the corrosion rate of reactor material would be accelerated. TiO2 coating with a thickness of 0.1 mm was prepared on the surface of 316L stainless steel (SS316L) to improve its corrosion resistance in supercritical water (SCW). The corrosion performances of TiO2/SS316L were tested in a bath SCW reactor at 400 °C, 25 MPa. The influences of oxygen concentration (0–1000 mg/L) on surface morphologies and corrosion depths were studied thoroughly. Results indicated that the surface of TiO2/SS316L exhibited cracks and pores after exposed in SCW. And the average corrosion rates accelerated at higher oxygen concentrations. The interface between the coating and medium was relatively smooth and there was no obvious change in the thickness of the coating with oxygen concentration of 0 and 500 mg/L. While for that with 1000 mg/L oxygen, the surface of TiO2/SS316L exhibited reticulate crack. The cross section showed a serrate structure, and only 0.08 mm thick of the coating was remained. In addition, the corrosion mechanism of coating was discussed. © 2018 Hydrogen Energy Publications LLC

Keyword :

316 L stainless steel Average corrosion rates Corrosion characteristics Corrosion performance Oxygen concentrations Supercritical water Supercritical water gasification (SCWG) TiO2

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GB/T 7714 Wang, Yuzhen , Liu, Zhuan , Zhang, Xiaoqiang et al. Influences of oxygen on corrosion characteristics of TiO2/316L stainless steel in supercritical water [J]. | International Journal of Hydrogen Energy , 2018 .
MLA Wang, Yuzhen et al. "Influences of oxygen on corrosion characteristics of TiO2/316L stainless steel in supercritical water" . | International Journal of Hydrogen Energy (2018) .
APA Wang, Yuzhen , Liu, Zhuan , Zhang, Xiaoqiang , Gao, Fen , Yang, Jianqiao , Fang, Changqing et al. Influences of oxygen on corrosion characteristics of TiO2/316L stainless steel in supercritical water . | International Journal of Hydrogen Energy , 2018 .
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Study on gas products distributions during fast co-pyrolysis of Paulownia wood and PET at high temperature EI CPCI-S Scopus
会议论文 | 2017 , 105 , 391-397 | 8th International Conference on Applied Energy (ICAE)
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Abstract :

The fast co-pyrolysis behavior of Paulownia wood (PAW) and Polyethylene terephthalate (PET) was studied via a drop tube fixed-bed reactor under nitrogen atmosphere at temperature ranged from 600 degrees C to 1000 degrees C. The discrepancy between experimental and predicted values was presented to investigate the synergistic effects during PAW and PET co-pyrolytic process. The gas yields of all tested blends were increased as the increment of temperature. With PAW ratio in the blends increased, the gas yields were elevated. However, the experimental values of gas yields of the blends were lower than predicted ones indicating that gas products yields were inhibited during co-pyrolysis. The evolution of the gas components containing H-2, CO, CH4, CO2 and a small quantity of light hydrocarbons (C2H2, C2H4 and C2H6) was investigated at different blending ratios and temperatures. (C) 2017 Published by Elsevier Ltd.

Keyword :

Paulownia wood synergistic effect fast co-pyrolysis Polyethylene terephthalate

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GB/T 7714 Chen, Lin , Wang, Shuzhong , Meng, Haiyu et al. Study on gas products distributions during fast co-pyrolysis of Paulownia wood and PET at high temperature [C] . 2017 : 391-397 .
MLA Chen, Lin et al. "Study on gas products distributions during fast co-pyrolysis of Paulownia wood and PET at high temperature" . (2017) : 391-397 .
APA Chen, Lin , Wang, Shuzhong , Meng, Haiyu , Wu, Zhiqiang , Zhao, Jun . Study on gas products distributions during fast co-pyrolysis of Paulownia wood and PET at high temperature . (2017) : 391-397 .
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Experimental and numerical investigations on gasification of biomass briquette in a sectional heating gasifier EI CPCI-S Scopus
会议论文 | 2017 , 105 , 1234-1241 | 8th International Conference on Applied Energy (ICAE)
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Abstract :

To research the demand of gasification temperature in different stages, the system of the sectional heating gasifier was proposed for the first time in global warming and resource shortage nowadays. When ER was 0.28 in the oxidizing stage, the experimental results indicated that: the LHV was 4200-4600 kJ/m(3),. was 62-65%, and the average volume fraction of O-2, CO2, H-2, CO, NO, NOX, and SO2 in the stable gasification was 4.5%, 10.2%, 14.5%, 23.5%, 0.024%, 0.025% and 0.032%, respectively. The numerical results indicated that: the temperature, concentration distributing (CO, CH4, H-2), carbon conversion efficiency, LHV of the gas fuel, gasification efficiency vary in the range of 612.24 degrees C, CO 16.01%, CH4 3.96%, H-2 13.82%, 75.1%, 4201 kJ/Nm(3), 57.56%. These results indicated the flue gas was satisfied with the requirement of urban gas, and the gasification efficiency was improved than downdraft gasifier. (C) 2017 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.

Keyword :

sectional heating gasifier biomass gasification temperature demand experimental and simulation

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GB/T 7714 Cai, Jianjun , Wang, Shuzhong , Kuang, Cao . Experimental and numerical investigations on gasification of biomass briquette in a sectional heating gasifier [C] . 2017 : 1234-1241 .
MLA Cai, Jianjun et al. "Experimental and numerical investigations on gasification of biomass briquette in a sectional heating gasifier" . (2017) : 1234-1241 .
APA Cai, Jianjun , Wang, Shuzhong , Kuang, Cao . Experimental and numerical investigations on gasification of biomass briquette in a sectional heating gasifier . (2017) : 1234-1241 .
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Numerical Investigation of Fluid Flow and Heat Transfer in a Two Dimensional Anisotropic EGS Model EI CPCI-S Scopus
会议论文 | 2017 , 372-375 | 4th International Conference on Industrial Engineering and Applications (ICIEA)
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Abstract :

Geothermal energy has advantages of high stability, fine continuity, and high utilization coefficient. It will become one of the most important part of energy in the future. But low-temperature geothermal resource, most of which is hydrothermal type, accounts for only 10% of the earth's geothermal energy. It has a relatively low efficiency when used for power generation. The thermal field scale is generally small which can't maintain to produce electricity steadily for a long time. Enhanced geothermal systems (EGS) which is aimed at developing and utilizing thermal energy of hot dry rock gradually arouse people's wide attention. Based on Habanero reservoir, we established a two-dimensional anisotropic model to study the effect of permeability anisotropy on EGS. With the ratio of vertical permeability to horizontal permeability as the index, the results show that when the pressure drop is not considered, the exploited geothermal energy reaches the maximum when the ratio is 0 due to the longest EGS life. It is over 2100MJ. And when the pressure drop is considered, the best ratio is about 1.3 for the net total power generation which is 20000MW. h with the optimum effect on pressure drop and EGS life.

Keyword :

EGS life Geothermal energy permeability anisotropy pressure drop

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GB/T 7714 Xu, Guixi , Wang, Shuzhong . Numerical Investigation of Fluid Flow and Heat Transfer in a Two Dimensional Anisotropic EGS Model [C] . 2017 : 372-375 .
MLA Xu, Guixi et al. "Numerical Investigation of Fluid Flow and Heat Transfer in a Two Dimensional Anisotropic EGS Model" . (2017) : 372-375 .
APA Xu, Guixi , Wang, Shuzhong . Numerical Investigation of Fluid Flow and Heat Transfer in a Two Dimensional Anisotropic EGS Model . (2017) : 372-375 .
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Catalytic effects of the typical alkali metal on gaseous products distribution and char structure during co-pyrolysis of low rank coal and lignocellulosic biomass EI CPCI-S Scopus
会议论文 | 2017 , 105 , 102-107 | 8th International Conference on Applied Energy (ICAE)
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In order to investigate the influencing mechanism of alkalis on gaseous products distribution and char structure during co-pyrolysis of low rank coal and lignocellulosic biomass, carboxymethylcellulose sodium (CMC) was selected as the typical organic sodium salt. Gaseous products distribution was explored in a drop tube furnace from 800 - 1000 degrees C under various CMC mass ratio, surface morphology of co-pyrolysis char was examined via scanning electron microscopy technology and fractal dimension analysis, and microcrystalline structure was evaluated using Raman spectra and peak deconvolution. The results indicated that the addition of CMC promoted the yields of H-2 and CO, and the yield of CO2 was improved due to the content of carboxylate radical in CMC. Quantitative information on co-pyrolysis char surface morphology was obtained from fractal analysis on the SEM images. The fractal dimension of co-pyrolysis char was in range 1.61 to 1.78 and higher than that of coal char, which meant the uniformity of the co-pyrolysis char was promoted by CMC. Peak fitting analysis on the Raman spectra illustrated that the value of A(D)/A(All) and A(D)/A(G) increased with the mass ratio of CMC, indicated that CMC improved the ordering of char structure. This paper provides an insight on the effects of organic sodium salt on products evolution during co-pyrolysis of coal and biomass. (C) 2017 Published by Elsevier Ltd.

Keyword :

low rank coal lignocellulosic biomass char structure co-pyrolysis gaseous products

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GB/T 7714 Wu, Zhiqiang , Yang, WangCai , Chen, Lin et al. Catalytic effects of the typical alkali metal on gaseous products distribution and char structure during co-pyrolysis of low rank coal and lignocellulosic biomass [C] . 2017 : 102-107 .
MLA Wu, Zhiqiang et al. "Catalytic effects of the typical alkali metal on gaseous products distribution and char structure during co-pyrolysis of low rank coal and lignocellulosic biomass" . (2017) : 102-107 .
APA Wu, Zhiqiang , Yang, WangCai , Chen, Lin , Meng, Haiyu , Zhao, Jun , Wang, Shuzhong . Catalytic effects of the typical alkali metal on gaseous products distribution and char structure during co-pyrolysis of low rank coal and lignocellulosic biomass . (2017) : 102-107 .
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Partial oxidation kinetics of the mixture of acetic acid, phenol and naphthalene in supercritical water for hydrogen production EI SCIE Scopus
期刊论文 | 2017 , 42 (31) , 19843-19850 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | IF: 4.229
WoS CC Cited Count: 1
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Abstract :

A quantitative kinetic model for the supercritical water partial oxidation of the mixture of acetic acid, naphthalene and phenol at 560 degrees C, 25 MPa was established. The model consisted a group of pathways that included two kind of compounds, which could be classified as stable cyclic compound (Int.1) and unstable ring-opening products (Int.2). The model was validated with the experimental data at oxygen ratio (OR) of 0 and 0.2, respectively. Results showed that the model could accurately predict the influences of reactants time on gas yields and intermediates concentrations. Reaction rate analysis indicated that the general trends of reaction rate at OR = 0 and OR = 0.2 were similar. The decomposition and steam reforming reactions of Int.2 were the main pathways for gas production. The oxygen during the gasification played a positive role in promoting the ring-opening reactions, which induced higher Int.2 production and increasing of steam reforming and decomposition rates, and finally increased the H-2 production. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Keyword :

Kinetics Acetic acid Supercritical water Phenol Partial oxidation Naphthalene

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GB/T 7714 Wang, Yuzhen , Gao, Fen , Yang, Jianqiao et al. Partial oxidation kinetics of the mixture of acetic acid, phenol and naphthalene in supercritical water for hydrogen production [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2017 , 42 (31) : 19843-19850 .
MLA Wang, Yuzhen et al. "Partial oxidation kinetics of the mixture of acetic acid, phenol and naphthalene in supercritical water for hydrogen production" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 42 . 31 (2017) : 19843-19850 .
APA Wang, Yuzhen , Gao, Fen , Yang, Jianqiao , Guo, Yang , Zhu, Yitong , Zhao, Gaoyang et al. Partial oxidation kinetics of the mixture of acetic acid, phenol and naphthalene in supercritical water for hydrogen production . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2017 , 42 (31) , 19843-19850 .
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