Gasification of high viscous slurry R&amp;D on atomization and numerical simulation

Jakobs, Tobias; Djordjevic, Neda; Fleck, Sabine; Mancini, Marco; Weber, Roman; Kolb, Thomas

doi:10.1016/j.apenergy.2011.12.026

Cited by 72 publications

(35 citation statements)

References 14 publications

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“…96 This type of slurry gasification is quite novel and has been associated with the experimental investigations of the char-oil slurry coupled with the modeling of the slurry. 97 Ceramic hot gas filters are installed to clean up impurities of the syngas such as alkalis, chloride, furfurals, phenols and sulphur at 800 1C. 98 This is different from the conventional vertical hanging filters in a tube sheet in terms of design and position.…”

Section: Reviewmentioning

confidence: 99%

An overview of advances in biomass gasification

Sikarwar

Zhao

Clough

et al. 2016

Energy Environ. Sci.

967

406

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Biomass gasification is a widely used thermochemical process for obtaining products with more value and potential applications than the raw material itself. Cutting-edge, innovative and economical gasification techniques with high efficiencies are a prerequisite for the development of this technology. This paper delivers an assessment on the fundamentals such as feedstock types, the impact of different operating parameters, tar formation and cracking, and modelling approaches for biomass gasification. Furthermore, the authors comparatively discuss various conventional mechanisms for gasification as well as recent advances in biomass gasification. Unique gasifiers along with multi-generation strategies are discussed as a means to promote this technology into alternative applications, which require higher flexibility and greater efficiency. A strategy to improve the feasibility and sustainability of biomass gasification is via technological advancement and the minimization of socio-environmental effects. This paper sheds light on diverse areas of biomass gasification as a potentially sustainable and environmentally friendly technology

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Section: Reviewmentioning

confidence: 99%

An overview of advances in biomass gasification

Sikarwar

Zhao

Clough

et al. 2016

Energy Environ. Sci.

967

406

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“…Coal-water slurry (CWS) as a promising substitute fuel for petroleum has been widely used in boilers and gasifiers [1][2][3][4][5]. CWS fuel has been used in over 20 power plants, over 300 industrial furnaces and several hundreds of various kilns in China.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical properties of Indonesian lignite continuously modified in a tunnel-type microwave oven for slurribility improvement

Cheng

Zhou

Wang

et al. 2015

Fuel

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“…A CFD model for entrained flow gasifier (EFG) is developed by Gao et al to predict the gas species as well as the gas temperature at the gasifier outlet with sawdust feedstock. Jakobs et al numerically investigated the influence of spray quality on the gasification process for a high‐pressure EFG. Entrained flow gasification is one of the most important approaches in converting solid fuels to useful syngas because of the ability to gasify most type of solid fuels .…”

Section: Introductionmentioning

confidence: 99%

Development of a high‐temperature two‐stage entrained flow gasifier model for the process of biomass gasification and syngas formation

2019

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Summary This paper presents development of the Mitsubishi Heavy Industries (MHI) gasifier utilizing an analogy between a model with coal feedstock and the model with torrefied woody biomass. A computational fluid dynamics (CFD) model was primarily developed for coal gasification, and the simulation results were validated with similar published work and experimental measurements. The model was extended for the woody biomass to predict the gasifier performance under the gasification process. The results were used to compare the effect of fuel type on the gasifier performance and gaseous product compositions. The second‐level injection nozzles were modified tangentially, and the flow characteristics, species yields, and temperature were evaluated. The possibility of reducing the gasifier length from 13 to 8 m is also evaluated for different total length. The results revealed that using woody biomass leads to a decrease in the mole fraction of CO and H2 at the gasifier outlet compared with coal. An opposite trend was observed for CO2 and CH4 compositions. The contributions of modified second‐level nozzles to the total gas composition and exit temperature only account for less than 3%. Reducing the gasifier length from 13 to 8 m increased the exit temperature from 1289 to 1340 K, but the changes in the exit gas composition were less than 2%. The new design of the MHI gasifier can reduce the investment costs by reducing the gasifier length as well as using biomass instead of coal.

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Gasification of high viscous slurry R&D on atomization and numerical simulation

Cited by 72 publications

References 14 publications

An overview of advances in biomass gasification

An overview of advances in biomass gasification

Physicochemical properties of Indonesian lignite continuously modified in a tunnel-type microwave oven for slurribility improvement

Development of a high‐temperature two‐stage entrained flow gasifier model for the process of biomass gasification and syngas formation

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