Numerical investigation of a process model integrating gasification and tar removal

Li, Ji-Shuo; Yao, Xiwen; Xu, Kaili; Ge, Jike; Yang, Dexin; Fan, Bingjie

doi:10.1007/s13399-021-02049-w

Cited by 6 publications

(2 citation statements)

References 65 publications

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“…Post‐gasification catalytic gas cleaning in a staged scheme was proposed 43 . Intermediate pyrogas cleaning with the possible extraction of aromatic compounds was also proposed 44,45 . Recuperation of gasification products heat at the pyrolysis stage can be used in a single‐reactor scheme 46…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of tar conversion on downdraft biomass gasification processes

Donskoy

2023

Biofuels Bioprod Bioref

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The article concerns some problems associated with the use of low‐grade fuels for the production of syngas in fixed‐bed gasifiers. Syngas is typically used to feed internal combustion engines in small power systems. Gas quality can be understood as its various characteristics, such as calorific value, the content of individual components (for example, hydrogen), low tar and soot content, and so forth. Achieving these quality criteria often requires specific conditions for the gasification process, in addition, some of them may be limited by additional requirements that are associated with thermal stability or fuel conversion requirements. When evaluating the technical and economic characteristics of gasification‐based power plants, the optimal efficiency does not always correspond to the higher efficiency of the gasification process and the quality of producer gas. In this regard, the aim is to develop optimization methods for different criteria and to create regime maps that cover physically achievable options. Novel mathematical models of tar conversion are proposed, allowing investigation of the dependencies of tar yield on gasification conditions, including the addition of catalysts or staged air supply. Computational tools based on thermodynamic and kinetic models make it possible to solve some of these problems, first of all, to consider and compare the efficiency of various methods for reducing tar content in producer gas (staged gasification, fuel mixing, thermal, and catalytic methods of tar elimination). The choice of relatively simple mathematical models allows us to conduct numerical calculations in a wide range of conditions and to optimize the parameters of biofuel conversion plants. This approach allows a more flexible choice of gasifier operating conditions, including its work as a part of a power unit. Optimal parameters are calculated for specific conditions: secondary air ratio (1–20%) and fraction of catalytic material (5–10%). The results may be used in the analysis and choice of biofuel gasification conditions at small power plants.

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Section: Introductionmentioning

confidence: 99%

“…43 Intermediate pyrogas cleaning with the possible extraction of aromatic compounds was also proposed. 44,45 Recuperation of gasification products heat at the pyrolysis stage can be used in a single-reactor scheme. 46 There are staged processes for fluidized bed gasification of biomass, some of which are similar to fixed bed staged processes.…”

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confidence: 99%

Mathematical modeling of tar conversion on downdraft biomass gasification processes

Donskoy

2023

Biofuels Bioprod Bioref

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Soot formation during oxy-steam-reforming of biomass pyrolysis volatile matters: validation of a chemical model

Tanoh,

Valin,

Lémonon

et al. 2024

Biomass Conv. Bioref.

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Spatial and temporal evolution of tar during ex-situ underground coal gasification

Dong

Zhou

et al. 2022

Fuel

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Numerical investigation of a process model integrating gasification and tar removal

Cited by 6 publications

References 65 publications

Mathematical modeling of tar conversion on downdraft biomass gasification processes

Mathematical modeling of tar conversion on downdraft biomass gasification processes

Soot formation during oxy-steam-reforming of biomass pyrolysis volatile matters: validation of a chemical model

Spatial and temporal evolution of tar during ex-situ underground coal gasification

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