Search Results - "Leckner, Bo"

Hundred years of fluidization for the conversion of solid fuels by Leckner, Bo

“…This is a summary of the development of conversion of solid fuels in fluidized bed during the hundred years that follow the first patent of Winkler in…”
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Combustion of municipal solid waste in fluidized bed or on grate – A comparison by Leckner, Bo, Lind, Fredrik

“…•Grate and fluidized bed (FB) are compared with municipal solid waste as fuel.•Combustion is more favorable in an FB, but fuel preparation is needed.•Bed…”
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A 1000 MWth boiler for chemical-looping combustion of solid fuels – Discussion of design and costs by Lyngfelt, Anders, Leckner, Bo

“…More than 2000 h of solid-fuel CLC operation in a number of smaller pilot units clearly indicate that the concept works. A scale-up of the technology to 1000…”
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Heat and mass transfer to/from active particles in a fluidized bed—An analysis of the Baskakov-Palchonok correlation by Leckner, Bo

“…•Heat and mass transfer to active particles in a bed of inactive particles is treated.•Minimum fluidization velocity and size ratio of inert/active particle…”
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Process aspects in combustion and gasification Waste-to-Energy (WtE) units by Leckner, Bo

“…•Devices for combustion, gasification, and pyrolysis of municipal solid waste are described.•Combinations of pyrolyser/gasifiers and combustors are sometimes…”
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From bubbling to circulating fluidized bed combustion—development and comparison by Leckner, Bo

“…The most significant introduction of fluidized bed combustion technology took place about 50 years ago. Initially the combustion beds were of the bubbling…”
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Fluidization Characteristics of Circulating Fluidized Bed Boilers by Leckner, Bo

“…The fluidization in the furnace of circulating fluidized bed (CFB) boilers is described. Data have been obtained from a 12 MWth CFB boiler and from literature…”
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Regimes of large-scale fluidized beds for solid fuel conversion by Leckner, Bo

“…The description of the fluidization behavior of Group B particles is ambiguous at high velocities in wide vessels like those in commercial solid-fuel…”
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Emission control of nitrogen oxides in the oxy-fuel process by Normann, Fredrik, Andersson, Klas, Leckner, Bo, Johnsson, Filip

“…The interest in oxy-combustion as a method to capture carbon dioxide has increased drastically during recent years. The oxy-fuel process offers new process…”
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Design of an industrial chemical looping gasification system by Wei, Yangjun, Cheng, Leming, Leckner, Bo, Wu, Erdong, Li, Liyao, Zhang, Qingyu

“…•A design methodology for an industrial Chemical Looping Gasification (CLG) unit is proposed.•Six design items are summarized and discussed.•The possibility to…”
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Solids separation efficiency at the outlet of a circulating fluidized bed riser by Wu, Wanqiang, Leckner, Bo, Pallarès, David, Duan, Lunbo

“…In a circulating fluidized bed (CFB) fuel converter the outlet geometry plays a decisive role for the solids flow in the circulating loop, thus affecting the…”
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Oxy-fuel combustion in circulating fluidized bed boilers by Leckner, Bo, Gómez-Barea, Alberto

“…•CO2 reduction in a circulating fluidized bed (CFB) oxy-boiler is studied.•Two cases are analyzed: (1) an air CFB boiler adapted to operate with O2 and (2) a…”
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Influence of particle and gas radiation in oxy-fuel combustion by Johansson, Robert, Leckner, Bo, Andersson, Klas, Johnsson, Filip

“…This work investigates thermal radiation in oxy-fired conditions. Both gas and particle radiation is modelled in an axi-symmetric cross section of a…”
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Performance of a volatiles distributor equipped with internal baffles under different fluidization regimes by Li, Xiaoyun, Lyngfelt, Anders, Linderholm, Carl, Leckner, Bo, Mattisson, Tobias

“…Chemical looping combustion of biomass is a promising carbon capture technology due to its inherent CO2 separation advantage. However, complete fuel…”
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Optimization of char and tar conversion in fluidized bed biomass gasifiers by Gómez-Barea, Alberto, Ollero, Pedro, Leckner, Bo

“…► Conversion of fuel, char and tar in biomass gasification is reviewed. ► The effectiveness of primary methods to increase fuel utilization in fluidized bed…”
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One-dimensional numerical simulation of CFB combustion: Improvement of hydrodynamic models for accurate prediction of pressure and particle size distributions by Yang, Changwon, Kwon, Hyunmin, Bang, Byeongryeol, Kim, Seongil, Pallarès, David, Leckner, Bo, Lee, Uendo

“…•The effects of attrition and fragmentation coefficient on the hydrodynamics of the 1D model are investigated.•The predicted results using the modified…”
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The effect of H2O on the oxy-fuel combustion of a bituminous coal char particle in a fluidized bed: Experiment and modeling by Bu, Changsheng, Gómez-Barea, Alberto, Leckner, Bo, Wang, Xinye, Zhang, Jubing, Piao, Guilin

“…Oxy-fuel fluidized bed (FB) combustion is considered one of the promising ways to control CO2 emission from coal-fired power plants. The effect of H2O on the…”
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Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW th Chemical Looping Combustion Circulating Fluidized Bed Boiler by Lyngfelt, Anders, Pallarès, David, Linderholm, Carl, Lind, Fredrik, Thunman, Henrik, Leckner, Bo

“…Chemical looping combustion (CLC) has unique potential for avoiding the large costs and energy penalties of existing CO2 capture technologies. Oxygen is…”
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Bed inventory balance and stability of dual circulating fluidized bed systems by Wei, Yangjun, Cheng, Leming, Pallarès, David, Leckner, Bo

“…Experiments and modelling are conducted for general understanding on the imbalance phenomenon and for discussion on the strategies to improve the bed inventory…”
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Models for gaseous radiative heat transfer applied to oxy-fuel conditions in boilers by Johansson, Robert, Andersson, Klas, Leckner, Bo, Thunman, Henrik

“…Models of gas radiation properties have been evaluated for conditions relevant to oxy-fired boilers, characterized by larger pressure path-lengths and possibly…”
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