Optimum parameters of the air gasification of coals in a circulating fluidized-bed gas generator with a stagnant layer

Dubinin, A. M.; Mavrin, S. P.

doi:10.3103/s0361521916030046

Cited by 3 publications

(4 citation statements)

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“…Since the last century, the humankind has developed schemes which use as a fuel the coal and it can produce combustible gas by gasification [19]. Coal gasification technology is the most promising and environmentally friendly technology in comparison with coal combustion way [12,19]. The most studied processes of high-temperature gasification of coal are gasification with a mixture of H2O and O2, carbon dioxide, a mixture of air and steam, hydrogen and air gasification.…”

Section: Features Of Fuel Cells and Coal Gasification Technologiesmentioning

confidence: 99%

“…In most cases, the produced generator gas contains tar, which requires the additional cleaning unit. Therefore, for the new power plant, it was decided to use the coal gasification technology, which was developed and described Dubinin et al in detail in [12]. The diagram of this gasifier is shown in Fig.…”

Section: The Thermal Circuit Of the Sofc Power Plant With Circulatingmentioning

confidence: 99%

“…After oxidation, the exhaust gases are sent to preheat the incoming air and to dry the coal. Table 1 shows the composition of the generator gas as a function of temperature in the gasifier [12].…”

Section: The Thermal Circuit Of the Sofc Power Plant With Circulatingmentioning

confidence: 99%

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SOFC power plant with circulating fluidized bed gasifier

et al. 2018

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Coal is used all over the world to meet the energy needs of industry and housing and communal services. The main requirements of coal using are environmental safety and efficiency. Increasing these parameters can be realized with the combination of a gasifier and fuel cells. The paper includes a variant of the thermal scheme of the power plant, which uses coal as a fuel, with its further gasification and conversion into electrical energy in a solid oxide fuel cell (SOFC) stacks. The developed scheme differs from traditional circuits by using a gasifier with an inhibited circulating fluidized bed (ICFB). In addition, the anode-off gases are used in the combustion chamber of the gasifier to maintain endothermic gasification reactions. This technologies combination allows increasing the energy system efficiency. The paper also includes the results of tests of an ICFB gasifier and analyze the available electrical power of the SOFC stacks. Analysis dependence EMF from the produced generator gas composition showed no significant effect on the available power of the electrochemical generator. Developed scheme allow excluding from the process the gas cleaning from tar after gasifier, which allowed to increase the efficiency and reduce the metal capacity of the developed equipment.

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Section: Features Of Fuel Cells and Coal Gasification Technologiesmentioning

confidence: 99%

Section: The Thermal Circuit Of the Sofc Power Plant With Circulatingmentioning

confidence: 99%

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SOFC power plant with circulating fluidized bed gasifier

et al. 2018

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“…Research on sewage treatment has been deepening around the world for over 20 years, and the three-phase fluidized bed is the main part of sewage treatment. Based on the conventional sewage treatment methods, internal circulation fluidized bed (ICFB) integrated the biofilm process within and is applied in chemical fluidization technology, thus forming a piece of new biological treatment equipment [1]. This equipment performs superiorly in fluid mechanics, and also maintains mass transfer quality.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Internal Circulating Fluidized Bed Using Computational Fluid Dynamics Technology

Du¹,

Liu²,

Sun³

2022

Fluid Dynamics &Amp; Materials Processing

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The computational fluid dynamics (CFD) technology is analyzed and calculated utilizing the turbulence model and multiphase flow model to explore the performance of internal circulating fluidized beds (ICFB) based on CFD. The three-dimensional simulation method can study the hydrodynamic properties of the ICFB, and the performance of the fluidized bed is optimized. The fluidization performance of the ICFB is improved through the experimental study of the cross-shaped baffle. Then, through the cross-shaped baffle and funnel-shaped baffle placement, the fluidized bed reaches a coupled optimization. The results show that CFD simulation technology can effectively improve the mass transfer efficiency and performance of sewage treatment. The base gap crossshaped baffle can improve the hydraulic conditions of the fluidized bed and reduce the system energy consumption. The cross-shaped baffle and funnel-shaped baffle can perfect the performance of the reactor and effectively strengthen the treatment in the intense aerobic process of industrial sewage.

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Performance analysis of the gasification of spent pot lining (SPL) carbonaceous solid waste materials generated from the primary aluminum industry

Nemmour

Ghenaï

2021

Carbon Management

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Optimum parameters of the air gasification of coals in a circulating fluidized-bed gas generator with a stagnant layer

Cited by 3 publications

References 0 publications

SOFC power plant with circulating fluidized bed gasifier

SOFC power plant with circulating fluidized bed gasifier

Optimization of the Internal Circulating Fluidized Bed Using Computational Fluid Dynamics Technology

Performance analysis of the gasification of spent pot lining (SPL) carbonaceous solid waste materials generated from the primary aluminum industry

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