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Suspended solid abatement in a conical fluidized bed flocculator

Dandan ZHOU, Shuangshi DONG, Keyu LI, Huizhong JIANG, Dandan SHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 127-134 doi: 10.1007/s11783-012-0415-x

Abstract: With the random movement of silica gel beads in a conical fluidized bed, micro-vortices resulting fromseveral hydrodynamic conditions were studied, and a suitable control strategy for operating the conical fluidized

Keywords： conical fluidized bed     flocculation     velocity gradient    

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CFD based combustion model for sewage sludge gasification in a fluidized bed

Yiqun WANG, Lifeng YAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 138-145 doi: 10.1007/s11705-009-0050-7

Abstract: Fluid Dynamics (CFD) model has been developed to simulate the sewage sludge gasification process in a fluidizedThe model sensitivity is analyzed by performing the model in a laboratory-scale fluidized bed in the

Keywords： CFD     model     sewage sludge     gasification     syngas    

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Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating fluidized

Shanwei Hu, Xinhua Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 579-590 doi: 10.1007/s11705-020-1953-6

Abstract: Dual-loop circulating fluidized bed (CFB) reactors have been widely applied in industry because of their

Keywords： multi-loop circulating fluidized bed     mathematical modeling     energy minimization multiscale     virtual fluidization    

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Occurrence of veterinary antibiotics in struvite recovery from swine wastewater by using a fluidized

Zhi-Long Ye, Yujun Deng, Yaoyin Lou, Xin Ye, Shaohua Chen

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1015-1

Abstract: investigated antibiotic occurrence in the struvite particles recovered from swine wastewater by using a fluidizedthat the smaller granules contained much more antibiotics than the larger ones, indicating that the fluidized

Keywords： Antibiotic     Struvite     Phosphorus recovery     Swine wastewater     Fluidized bed    

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Performance evaluation of circulating fluidized bed incineration of municipal solid waste by multivariate

Hua Tao, Pinjing He, Yi Zhang, Wenjie Sun

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0945-3

Abstract: This first nationwide survey was conducted to evaluate the overall performance of the circulating fluidized

Keywords： Municipal solid waste     Incineration     Circulating fluidized bed     Load change     Multivariate outlier detection    

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

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

Keywords： Self-sustained catalytic combustion     Carbon monoxide     Cu1–xCexOy     Fluidized    

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Development of a supercritical and an ultra-supercritical circulating fluidized bed boiler

Junfu LYU, Hairui YANG, Wen LING, Li NIE, Guangxi YUE, Ruixin LI, Ying CHEN, Shilong WANG

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 114-119 doi: 10.1007/s11708-017-0512-4

Abstract: The supercritical circulating fluidized bed (CFB) boiler, which combines the advantages of CFB combustion

Keywords： supercritical     circulating fluidized bed boiler     development     demonstration    

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Particle-scale simulation of fluidized bed with immersed tubes

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 341-345 doi: 10.1007/s11705-008-0046-8

Abstract: The resulting method was employed to simulate hydrodynamics in a fluidized bed with immersed tubes.The gas-solid flow pattern in the fluidized bed is changed greatly because of the immersed tubes.

Keywords： unfavorable     computational     gas-solid     particle     discrete    

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Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 349-353 doi: 10.1007/s11783-008-0051-7

Abstract: A new biological nitrogen removal process, which is named herein “The circulating fluidized bed bioreactor

Keywords： soluble chemical     bioreactor     biological nitrogen     optimum nitrified     nitrogen removal    

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Performance of inverse fluidized bed bioreactor in treating starch wastewater

M. RAJASIMMAN, C. KARTHIKEYAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 235-239 doi: 10.1007/s11705-009-0020-0

Abstract: Aerobic digestion of starch industry wastewater was carried out in an inverse fluidized bed bioreactor

Keywords： inverse fluidization     low-density particles     polypropylene     starch     biofilm    

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Modeling of solids segregation in circulating fluidized bed boilers

Xuan YAO, Tao WANG, Jia ZHAO, Hairui YANG, Hai ZHANG

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 115-119 doi: 10.1007/s11708-010-0103-0

Abstract: Segregation always occurs in a circulating fluidized bed (CFB) because of the wide distribution of particle

Keywords： segregation     model     terminal velocity     circulating fluidized bed (CFB)    

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Experimental study on influence of operating parameters on tar components from corn straw gasification in fluidized

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 374-383 doi: 10.1007/s11708-020-0710-3

Abstract: Gasification is a promising approach for converting solid fuel sources, including renewable ones like biomass, for use. The main problem in biomass gasification is the formation of condensable tars, including polycyclic aromatic hydrocarbons (PAHs). This paper investigated the conversion of tar components during corn straw gasification. It analyzed collected tar components using a gas chromatograph-mass spectrograph (GC-MS). Experimental results indicate that, with increasing temperature from 700°C to 900°C, the concentrations of benzene, indene, phenanthrene, naphthalene, acenaphthylene, fluorene, and pyrene increased whereas those of toluene, phenol, 1-methylnaphthalene, and 2-methylnaphthalene decreased. As the equivalence ratio (ER) increased from 0.21 to 0.34, the concentrations of indene and phenanthrene increased from 0.148% and 0.087% to 0.232% and 0.223%, respectively. Further, the phenol content increased as ER increased from 0.21 to 0.26 and then decreased as the ER increased further to 0.34. Other parameters like the steam/biomass (S/B) ratio and catalyst also played a critical role in tar reduction. This paper demonstrates the conversion of some tar components and elucidates their chemical properties during gasification.

Keywords： gasification     tar components     operating parameters    

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Flow boiling heat transfer in circulating fluidized bed

Xiaoguang REN , Jiangdong ZHENG , Sefiane KHELLIl , Arumemi-Ikhide MICHAEL ,

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 85-89 doi: 10.1007/s11708-008-0067-5

Abstract: mitigate contamination in the boiling processes, a new type of vapor-liquid-solid (3-phase) circulating fluidizedbed boiling system has been designed, combining a circulating fluidized bed with boiling heat transfer

Keywords： vapor-liquid-solid three phase     flow boiling heat transfer     circulating fluidized bed    

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A study of spray granulation in vibrated fluidized bed with internal heating tubes

Xiaoheng PAN, Shichao YE, Zeguang ZHANG, Li ZHANG, Xuejun ZHU

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 78-82 doi: 10.1007/s11705-009-0084-x

Abstract: The granulation process in a vibrated fluidized bed with immersed horizontal heating tubes was studied

Keywords： vibrated fluidized bed     immersed horizontal     horizontal heating tubes     spray granulation     particle growth    

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external diffusion of catalytic steam gasification of fine coal char particles under pressurized and fluidized

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory reactor to determine the intrinsic kinetics and external diffusion under varying pressures (0.1–0.5 MPa) and superficial gas flow velocities (GFVs) of 13.8–68.8 cm?s . In order to estimate the gas release rate at a low GFV, the transported effect of effluent gas on the temporal gasification rate pattern was simulated by the Fluent computation and verified experimentally. The external mass transfer coefficients ( ) and the effectiveness factors were determined at lower GFVs, based on the intrinsic gasification rate obtained at a high GFV of 55.0 cm?s . The was found to be almost invariable in a wider carbon conversion of 0.2–0.7. The variations of at a median carbon conversion with GFV, temperature and pressure were found to follow a modified Chilton-Colburn correlation: (0.04< <0.19), where is total pressure and is atmospheric pressure. An intrinsic kinetics/external diffusion integrating model could well describe the gasification rate as a function of GFV, temperature and pressure over a whole gasification process.

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Title Author Date Type Operation

Suspended solid abatement in a conical fluidized bed flocculator

Dandan ZHOU, Shuangshi DONG, Keyu LI, Huizhong JIANG, Dandan SHANG

Journal Article

CFD based combustion model for sewage sludge gasification in a fluidized bed

Yiqun WANG, Lifeng YAN

Journal Article

Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating fluidized

Shanwei Hu, Xinhua Liu

Journal Article

Occurrence of veterinary antibiotics in struvite recovery from swine wastewater by using a fluidized

Zhi-Long Ye, Yujun Deng, Yaoyin Lou, Xin Ye, Shaohua Chen

Journal Article

Performance evaluation of circulating fluidized bed incineration of municipal solid waste by multivariate

Hua Tao, Pinjing He, Yi Zhang, Wenjie Sun

Journal Article

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

Journal Article

Development of a supercritical and an ultra-supercritical circulating fluidized bed boiler

Junfu LYU, Hairui YANG, Wen LING, Li NIE, Guangxi YUE, Ruixin LI, Ying CHEN, Shilong WANG

Journal Article

Particle-scale simulation of fluidized bed with immersed tubes

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi

Journal Article

Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Journal Article

Performance of inverse fluidized bed bioreactor in treating starch wastewater

M. RAJASIMMAN, C. KARTHIKEYAN

Journal Article

Modeling of solids segregation in circulating fluidized bed boilers

Xuan YAO, Tao WANG, Jia ZHAO, Hairui YANG, Hai ZHANG

Journal Article

Experimental study on influence of operating parameters on tar components from corn straw gasification in fluidized

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Journal Article

Flow boiling heat transfer in circulating fluidized bed

Xiaoguang REN , Jiangdong ZHENG , Sefiane KHELLIl , Arumemi-Ikhide MICHAEL ,

Journal Article

A study of spray granulation in vibrated fluidized bed with internal heating tubes

Xiaoheng PAN, Shichao YE, Zeguang ZHANG, Li ZHANG, Xuejun ZHU

Journal Article

external diffusion of catalytic steam gasification of fine coal char particles under pressurized and fluidized

Xuantao Wu, Jie Wang

Journal Article