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

ACS Omega, Journal Year: 2024, Volume and Issue: 9(2), P. 2060 - 2079

Published: Jan. 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.

Language: Английский

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

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 185, P. 325 - 339

Published: March 7, 2024

Language: 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, Journal Year: 2024, Volume and Issue: 12(2), P. 390 - 390

Published: Feb. 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.

Language: 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, Journal Year: 2025, Volume and Issue: 388, P. 134421 - 134421

Published: Feb. 3, 2025

Language: Английский

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

Fuel, Journal Year: 2025, Volume and Issue: unknown, P. 134797 - 134797

Published: Feb. 1, 2025

Language: 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, Journal Year: 2024, Volume and Issue: 352, P. 119967 - 119967

Published: Jan. 18, 2024

Language: Английский

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Towards Sustainable Biomass Conversion Technologies: A Review of Mathematical Modeling Approaches

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8719 - 8719

Published: Oct. 9, 2024

The sustainable utilization of biomass, particularly troublesome waste has become one the pathways to meet urgent demand for providing energy safety and environmental protection. variety biomass hinders design devices systems, which must be highly efficient reliable. Along with technological developments in this field, broad works have been carried out on mathematical modeling processes support optimization decreasing impact systems. This paper aims provide an extensive review various approaches proposed field thermochemical conversion biomass. general focus is pyrolysis gasification, are considered among most beneficial methods utilization. thermal flow issues accompanying fuel conversion, basic governing equations closing relationships, presented regard micro- (single particle) macro-scale (multi-particle) problems, including different (Eulerian, Lagrangian, mixed). data-driven techniques utilizing artificial neural networks machine learning, gaining increasing interest as complementary traditional models, also presented. complexity physicochemical upscaling problem variations discussed. advantages limitations models indicated. Potential options further development area outlined. study shows that efforts towards obtaining reliable predictions process characteristics while preserving reasonable computational efficiency result a methods. These contribute advancing environmentally conscious solutions line global sustainability goals.

Language: Английский

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Advances in biorenewables-resource-waste systems and modelling

Carbon Capture Science & Technology, Journal Year: 2023, Volume and Issue: 9, P. 100142 - 100142

Published: Sept. 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.

Language: Английский

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Municipal solid waste gasification by hot recycling blast furnace gas coupled with in-situ decarburization to prepare blast furnace injection of hydrogen-rich gas

Waste Management, Journal Year: 2023, Volume and Issue: 174, P. 153 - 163

Published: Dec. 5, 2023

Language: Английский

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Modeling Pyrolysis of Thermally Thick Biomass Particles in Co2/H2o Atmosphere at High Heating Rates

Published: Jan. 1, 2024

Language: Английский

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