Impact of Chemistry–Turbulence Interaction Modeling Approach on the CFD Simulations of Entrained Flow Coal Gasification

Mularski, Jakub; Modliński, Norbert

doi:10.3390/en13236467

Cited by 12 publications

(5 citation statements)

References 59 publications

(79 reference statements)

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“…Thereafter, the temperature was maintained at the maximum with little fluctuations. Similar temperature behavior can be found elsewhere [30,31]. The presence of char and tar was neglected in the numerical model due to their absence in actual experiments.…”

Section: High Fidelity Modelling Of Glycerol Conversionmentioning

confidence: 54%

Assessment of glycerol gasification: devolatilization kinetics and parametric analysis

et al. 2023

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The forecasted need for diesel fuel continues to rise, and likewise the competitive biodiesel demand in the middle to long term future remains promising. Unfortunately, biodiesel production generates a significant amount of crude glycerol with the byproduct typically exceeding 10% of the biodiesel produced. The current glycerol market cannot accommodate the use of waste crude glycerol; therefore, an alternative solution is needed for the utilization of the crude glycerol and gasification is a potential pathway. In this work, the technical feasibility of gasification of crude glycerol is assessed at two levels, equilibrium modeling which was conducted under ideal conditions, and high-fidelity reactive flow modeling in a tubular reactor. Results revealed that elevated steam ratios are required for the gasification of glycerol to reach high conversion rates of 99% and an acceptable cold gasification efficiency of 40%. Although this value is far off from the conventional coal gasification that hovers around 60%, the anlysis suggests that gasification of crude glycerol can be accepted as an intermediate solution to the expected flood of glycerol generated by the biodiesel transesterification industry before becoming a waste burden.

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Section: High Fidelity Modelling Of Glycerol Conversionmentioning

confidence: 54%

Assessment of glycerol gasification: devolatilization kinetics and parametric analysis

et al. 2023

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“…The metadata is needed to generate input files for the numerical simulation of the reactors, in which kinetic data have been measured. Drivers use these metadata to combine the experiment with the specific reactor/process simulation software (e. g. CFD simulation) [28] and to set-up the input files for the numerical simulation. For instance, information of catalyst material and loading, porosity of the support structure, volumetric flow rates, temperature profiles, inlet mixtures etc.…”

Section: Carmen -A Tool For Rapid Analysis and Development Of Kinetic Modelsmentioning

confidence: 99%

A Unified Research Data Infrastructure for Catalysis Research – Challenges and Concepts

et al. 2021

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Modern research methods produce large amounts of scientifically valuable data. Tools to process and analyze such data have advanced rapidly. Yet, access to large amounts of high-quality data remains limited in many fields, including catalysis research. Implementing the concept of FAIR data (Findable, Accessible, Interoperable, Reusable) in the catalysis community would improve this situation dramatically. The German NFDI initiative (National Research Data Infrastructure) aims to create a unique research data infrastructure covering all scientific disciplines. One of the consortia, NFDI4Cat, proposes a concept that serves all aspects and fields of catalysis research. We present a perspective on the challenging path ahead. Starting out from the current state, research needs are identified. A vision for a integrating all research data along the catalysis value chain, from molecule to chemical process, is developed. Respective core development topics are discussed, including ontologies, metadata, required infrastructure, IP, and the embedding into research community. This Concept paper aims to inspire not only researchers in the catalysis field, but to spark similar efforts also in other disciplines and on an international level.This publication is part of a Special Collection on "Data Science in Catalysis". Please check the ChemCatChem homepage for more articles in the collection.

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“…Compounds with an atomic mass higher than benzene are often referred to as tars [43][44][45][46]. Gasification has been investigated extensively for many different materials [47][48][49][50][51][52][53][54].…”

Section: Of 14mentioning

confidence: 99%

Entrained Flow Plasma Gasification of Sewage Sludge–Proof-of-Concept and Fate of Inorganics

et al. 2022

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Sewage sludge is a residue of wastewater processing that is biologically active and consists of water, organic matter, including dead and living pathogens, polycyclic aromatic hydrocarbons, and heavy metals, as well as organic and inorganic pollutants. Landfilling is on the decline, giving way to more environmentally friendly utilisation routes. This paper presents the results of a two-stage gasification–vitrification system, using a prototype-entrained flow plasma-assisted gasification reactor along with ex situ plasma vitrification. The results show that the use of plasma has a considerable influence on the quality of gas, with a higher heating value of dry gas exceeding 7.5 MJ/mN3, excluding nitrogen dilution. However, dilution from plasma gases becomes the main problem, giving a lower heating value of dry gas with the highest value being 5.36 MJ/mN3 when dilution by nitrogen from plasma torches is taken into account. An analysis of the residues showed a very low leaching inclination of ex-situ vitrified residues. This suggests that such a system could be used to avoid the problem of landfilling significant amounts of ash from sewage sludge incineration by turning inorganic residues into a by-product that has potential use as a construction aggregate.

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Impact of Chemistry–Turbulence Interaction Modeling Approach on the CFD Simulations of Entrained Flow Coal Gasification

Cited by 12 publications

References 59 publications

Assessment of glycerol gasification: devolatilization kinetics and parametric analysis

Assessment of glycerol gasification: devolatilization kinetics and parametric analysis

A Unified Research Data Infrastructure for Catalysis Research – Challenges and Concepts

Entrained Flow Plasma Gasification of Sewage Sludge–Proof-of-Concept and Fate of Inorganics

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