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ash deposition 2

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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 particlesize and density of the bed material.This paper proposes a segregation model in CFB boilers based on the Cell Model.The test result of ash size distribution in a 220 t/h CFB boiler validates the reasonableness of the

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

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Development and technical progress in large-scale circulating fluidized bed boiler in China

Zhong HUANG, Lei DENG, Defu CHE

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 699-714 doi: 10.1007/s11708-020-0666-3

Abstract: Circulating fluidized bed (CFB) boilers has realized the clean and efficient utilization of inferiorAs a country with the largest amount of CFB boilers and the largest installed capacity in the world,China has 440 100–600 MW CFB boilers with a total capacity of 82.29 GW , including 227 units of 135The statistics of typical 100–300 MW CFB boilers showed that the average number of unplanned shut-downThis paper summarizes the development process and application status of China’s large-scale CFB boilers

Keywords： CFB boiler     installed capacity     reliability     economics     ultra-low emission     China    

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Prospects for the Low Pollutant Emission Control of Circulating Fluidized Bed Combustion Technology

Ke Xiwei, Jiang Ling, Lyu Junfu, Yue Guangxi

Strategic Study of CAE 2021, Volume 23, Issue 3,   Pages 120-128 doi: 10.15302/J-SSCAE-2021.03.009

Abstract: stringent and considering the pressure of carbon neutral by 2060, the low pollutant emission potential of circulatingfluidized bed (CFB) combustion technology needs to be further exploited, thus to promote the marketIn this article, we summarize the pollutant emission characteristics of CFB combustion, and review thedevelopment of major technologies for CFB boiler emission control.The existing CFB boilers with small or medium capacity should also be upgraded.

Keywords： clean coal utilization     circulating fluidized bed (CFB)     pollution control     carbon neutral     fuel flexibility    

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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 fluidizedbed (CFB) incineration of municipal solid waste (MSW) in 2014-2015 in China.Total 23 CFB incineration power plants were evaluated.The data were analyzed to assess the overall performance of CFB incineration by applying the MahalanobisFurthermore, the overloading occurs more often than the underloading during the operation of the CFB

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

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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 combustionand supercritical steam cycle with high efficiency of coal energy, is believed to be the future of CFBsupercritical pulverized coal boiler that has been developed more than 50 years, the supercritical CFB, Chinese researchers have conducted fundamental research, development, design of the supercritical CFBThe design theory and key technology for supercritical CFB boiler were proposed.

Keywords： supercritical     circulating fluidized bed boiler     development     demonstration    

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

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

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Heat transfer in a large-scale circulating fluidized bed boiler

CHENG Leming, WANG Qinhui, SHI Zhenglun, LUO Zhongyang, NI Mingjiang, CEN Kefa

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 477-482 doi: 10.1007/s11708-007-0071-5

Abstract: Heat transfer of a furnace in a large-scale circulating fluidized bed (CFB) boiler was studied basedon the analysis of available heat transfer coefficient data from typical industrial CFB boilers and measured

Keywords： available     coefficient     industrial     large-scale circulating     analysis    

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Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulatingfluidized beds

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 theirModeling the gas-solid CFB system requires a quantitative description of the multiscale heterogeneityThis article proposed a general method for modeling multi-loop CFB systems by utilizing the energy minimizationfurther developed to facilitate the flexible creation and fast modeling of a customized multi-loop CFBresearch can be expected to provide quantitative references for the design and scale-up of gas-solid CFB

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

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Effect of oil shale semi-coke on deposit mineralogy and morphology in the flue path of a CFB burning

Zhuo LIU, Jianbo LI, Mingming ZHU, Xiaofeng LU, Zhezi ZHANG, Dongke ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 26-37 doi: 10.1007/s11708-020-0668-1

Abstract: (SC) on the mineralogy and morphology of the ash deposited on probes situated in the flue path of a circulatingfluidized bed (CFB) which burns Zhundong lignite (ZD) was investigated. 10 wt% or 20 wt% SC was addedto ZD, which were then combusted in the CFB furnace at 950°C.addition of SC would therefore help alleviate the propensity of ash deposition in the flue path in the CFB

Keywords： ash deposition     circulating fluidized bed (CFB)     mineral transformation     oil shale semi-coke (SC)     Zhundong    

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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 bioreactorThis process was composed of an anaerobic bed (Riser), aerobic bed (Downer) and connecting device.Influent and nitrified liquid from the aerobic bed enters the anaerobic bed from the bottom of the anaerobicbed, completing the removal of nitrogen and organic matter.With a shortest total retention time of 2.5 h (0.8 h in the anaerobic bed and 1.5 h in the aerobic bed

Keywords： soluble chemical     bioreactor     biological nitrogen     optimum nitrified     nitrogen removal    

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and structural study of ash deposits spatially distributed in superheaters of a large biomass-fired CFB

Yishu XU, Xiaowei LIU, Jiuxin QI, Tianpeng ZHANG, Minghou XU, Fangfang FEI, Dingqing LI

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 449-459 doi: 10.1007/s11708-021-0734-3

Abstract: Therefore, the ash deposits in the superheaters of a 220 t/h biomass-fired CFB boiler were studied, including

Keywords： ash deposition     biomass combustion     circulating fluidized bed     initial layer     structure analysis    

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Heat flux distribution on circulating fluidized bed boiler water wall

LU Junfu, YUE Guangxi, YANG Hairui, ZHANG Jiansheng, YU Long, ZHANG Man, YANG Zhongming

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 134-139 doi: 10.1007/s11708-008-0027-0

Abstract: The future of circulating fluidized bed (CFB) combustion technology is in raising the steam parameterswater wall is one of the most important issues in the design and operation of supercritical pressure CFBStudies on the horizontal heat flux distribution were conducted in three CFB boilers with different furnaceThe results are useful in supercritical pressure CFB boiler design.

Keywords： horizontal     different furnace     temperature     FEA     measurement    

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Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 715-725 doi: 10.1007/s11708-020-0690-3

Abstract: In this paper, the design and operation of a novel coal-fired circulating fluidized bed (CFB) drum boilerA CFB combustion technology was used for coal firing to achieve a uniform heat transfer condition withBased on the field test, the recommended water standard for the coal-fired CFB drum boilers was determined

Keywords： drum steam injection boiler     natural circulation     recovery wastewater     staged evaporation     circulating fluidizedbed (CFB)    

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Effect of circulating ash from CFB boilers on NO and N

Xiangsong HOU, Shi YANG, Junfu LU, Hai ZHANG, Guangxi YUE

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 241-246 doi: 10.1007/s11708-009-0006-0

Abstract: NO and N O emissions from circulating fluidized bed (CFB) boilers are determined by their formation andThe effect of circulating ash from a CFB boiler on NO and N O emissions were investigated in a laboratory-scalefluidized bed reactor.The results show that the residue char in circulating ash and the CO generated from the char play anExperiment was also conducted on a 75 t/h CFB boiler fueled with the mixture of anthracite and biomass

Keywords： CFB boiler     circulating ash     NO reduction     N2O thermal decomposition     biomass    

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Activity and characteristics of “Oxygen-enriched” highly reactive absorbent for simultaneous flue gas desulfurization and denitrification

Yi ZHAO,Tianxiang GUO,Zili ZANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 222-229 doi: 10.1007/s11783-014-0636-2

Abstract: Removal of SO and NO simultaneously was carried out using this absorbent in a flue gas circulating fluidizedbed (CFB).

Keywords： “Oxygen-enriched” highly reactive absorbent     Surface characteristics     Flue gas circulating fluidized bed    

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Title Author Date Type Operation

Modeling of solids segregation in circulating fluidized bed boilers

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

Journal Article

Development and technical progress in large-scale circulating fluidized bed boiler in China

Zhong HUANG, Lei DENG, Defu CHE

Journal Article

Prospects for the Low Pollutant Emission Control of Circulating Fluidized Bed Combustion Technology

Ke Xiwei, Jiang Ling, Lyu Junfu, Yue Guangxi

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

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

Flow boiling heat transfer in circulating fluidized bed

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

Journal Article

Heat transfer in a large-scale circulating fluidized bed boiler

CHENG Leming, WANG Qinhui, SHI Zhenglun, LUO Zhongyang, NI Mingjiang, CEN Kefa

Journal Article

Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulatingfluidized beds

Shanwei Hu, Xinhua Liu

Journal Article

Effect of oil shale semi-coke on deposit mineralogy and morphology in the flue path of a CFB burning

Zhuo LIU, Jianbo LI, Mingming ZHU, Xiaofeng LU, Zhezi ZHANG, Dongke ZHANG

Journal Article

Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Journal Article

and structural study of ash deposits spatially distributed in superheaters of a large biomass-fired CFB

Yishu XU, Xiaowei LIU, Jiuxin QI, Tianpeng ZHANG, Minghou XU, Fangfang FEI, Dingqing LI

Journal Article

Heat flux distribution on circulating fluidized bed boiler water wall

LU Junfu, YUE Guangxi, YANG Hairui, ZHANG Jiansheng, YU Long, ZHANG Man, YANG Zhongming

Journal Article

Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

Journal Article

Effect of circulating ash from CFB boilers on NO and N

Xiangsong HOU, Shi YANG, Junfu LU, Hai ZHANG, Guangxi YUE

Journal Article

Activity and characteristics of “Oxygen-enriched” highly reactive absorbent for simultaneous flue gas desulfurization and denitrification

Yi ZHAO,Tianxiang GUO,Zili ZANG

Journal Article