Tar Formation in Gasification Systems: A Holistic Review of Remediation Approaches and Removal Methods

ACS Omega, Год журнала: 2024, Номер 9(2), С. 2060 - 2079

Опубликована: Янв. 4, 2024

Gasification is an advanced thermochemical process that converts carbonaceous feedstock into syngas, a mixture of hydrogen, carbon monoxide, and other gases. However, the presence tar in which composed higher molecular weight aromatic hydrocarbons, poses significant challenges for downstream utilization syngas. This Review offers comprehensive overview from gasification, encompassing gasifier chemistry configuration notably impact formation during gasification. It explores concentration composition syngas purity required applications. Various removal methods are discussed, including mechanical, chemical/catalytic, plasma technologies. The provides insights strengths, limitations, associated with each method. also highlights importance integrating multiple techniques to enhance efficiency quality. selection appropriate strategy depends on factors such as composition, operating design factors, economic considerations, extent at application. Future research should focus developing cleaning strategies consume less energy cause smaller environmental impact.

Язык: Английский

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Influence of main operating parameters on the incineration characteristics of municipal solid waste (MSW)

Process Safety and Environmental Protection, Год журнала: 2024, Номер 185, С. 325 - 339

Опубликована: Март 7, 2024

Язык: Английский

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Computational fluid dynamics study of sequential hydrothermal carbonization and CO2-gasification of municipal solid waste-coconut husk-derived hydrochar for tunable syngas production

Fuel, Год журнала: 2025, Номер 388, С. 134421 - 134421

Опубликована: Фев. 3, 2025

Язык: Английский

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CFD–DEM Simulation of Heat Transfer and Reaction Characteristics of Pyrolysis Process of MSW Heated by High-Temperature Flue Gas

Processes, Год журнала: 2024, Номер 12(2), С. 390 - 390

Опубликована: Фев. 15, 2024

Pyrolysis is a promising disposal method for municipal solid waste (MSW) due to the high-value utilization of organic components MSW. Traditional indirect heating has low heat transfer efficiency and requires an increase in exchange area. In this study, refined numerical simulation model pyrolysis four typical MSW with high-temperature flue gas was established study influence on reaction characteristics The temperature distribution particle size change different were obtained, effects velocity process analyzed. It found that difference along bed height direction about 1.36–1.81 K/mm, energy 55–61%. When uniformly mixed, rates each component similar during process. As increased, amount consumption decreased increased. increased decreased. research results are great significance promotion application technology gas.

Язык: Английский

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Computationally inexpensive CFD modeling of sewage sludge and waste additive combustion experiments in an entrained flow reactor

Fuel, Год журнала: 2025, Номер unknown, С. 134797 - 134797

Опубликована: Фев. 1, 2025

Язык: Английский

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Effect of heterogeneity of organic solid wastes on gasification behavior and efficiency

Energy, Год журнала: 2025, Номер unknown, С. 136815 - 136815

Опубликована: Май 1, 2025

Язык: Английский

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Computational Fluid Dynamics Investigation of Flow and Flame Behavior in Natural Gas Burners for Borax Pentahydrate Furnaces

Processes, Год журнала: 2025, Номер 13(6), С. 1660 - 1660

Опубликована: Май 26, 2025

The combustion behavior and thermal performance of industrial-scale borax pentahydrate (Na2B4O7·5H2O) melting furnaces remain underexplored despite their critical role in boric oxide (B2O3) production, a key input for high-performance manufacturing. This study addressed this gap by employing three-dimensional computational fluid dynamics (CFD) simulations to model two operational natural gas-fired with distinct burner configurations (four-burner six-burner systems). analysis focused on optimizing placement, specifically, the axial distance inclination angle, enhance uniformity reduce refractory wall damage caused aggressive high-temperature borate corrosion. A comprehensive parametric twelve revealed that tilting burners at 5–10° significantly improved temperature while reducing peak temperatures mitigating localized hot spots. optimal design, incorporating 10° angle staggered arrangement (Case 11), attained melt pool 1831.3 K charging average 1812.0 K. These values represent essential benchmarks maximizing furnace efficiency stability. modified designs four- systems led distributions notable reduction maximum temperatures, directly contributing longer maintenance intervals durability. findings confirm minor geometrical angular adjustments placement can yield significant gains. validated CFD approach proposed design modifications offer scalable, low-cost strategy improving lifespan processing facilities.

Язык: Английский

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Digital Twin Simulation of Incineration Plant Pit with Discrete Element Modelling for Interactions between a Grab Crane and Municipal Solid Waste

Опубликована: Янв. 1, 2025

Язык: Английский

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Converting ash into reusable slag at lower carbon footprint: Vitrification of incineration bottom ash in MSW-fueled demonstration-scale slagging gasifier

Journal of Environmental Management, Год журнала: 2024, Номер 352, С. 119967 - 119967

Опубликована: Янв. 18, 2024

Язык: Английский

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Advances in biorenewables-resource-waste systems and modelling

Carbon Capture Science & Technology, Год журнала: 2023, Номер 9, С. 100142 - 100142

Опубликована: Сен. 15, 2023

The transformation to a resource-circular bio-economy offers mechanism mitigate climate change and environmental degradation. As advanced bioeconomy components, biorenewables derived from terrestrial, aquatic biomass waste resources are expected play significant roles over the next decades. This study provides an overview of potential ranging higher plant species phototrophic microbial cluster, their fundamental photosynthesis processes as well biogeochemical carbon cycles involved in ecosystems. review reflects empirical advances conversion technologies manufacture value-added resources. nexus perspective resource-biorenewable-waste has been analysed understand interdependency wider interaction with We further discussed systems perspectives develop understanding resource flows across biorenewable subsystems highlight spatial temporal variability. Our in-depth suggested system challenges biorenewable, which subject nonlinearity, variability complexity. To unlock such complexity address challenges, whole approach is necessary understanding, design novel solutions. recent prospects computational methods for modelling. covers development applications first principle models, process design, quantitative evaluation sustainability ecosystem services mathematical optimisation improve operation planning emerging systems. Coupling these methods, enables multi-scale modelling framework inherently link ecosystems manufacturing. Reviewing advances, our insights into opportunities research highlights frontier directions, have impact sector sustainability.

Язык: Английский

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