Results 11 to 20 of about 747,943 (345)

Techno-Economic Evaluation of Biological and Fluidised-Bed Based Methanation Process Chains for Grid-Ready Biomethane Production

open access: yesFrontiers in Energy Research, 2022
Three different power-to-methane process chains with grid injection in two scales (1 MWel and 6 MWel) were analysed regarding their investment and operation cost. The process chains were based on biological or catalytic bubbling fluidised bed methanation
Andreas Gantenbein   +4 more
doaj   +2 more sources

A Methodology for Measuring the Heat Release Efficiency in Bubbling Fluidised Bed Combustors

open access: yesEnergies, 2020
Differences in the densities of bed material and—especially biogenic—solid fuels prevent an ideal mixture within bubbling fluidised bed (BFB) combustors. So, the presence of fuel particles is usually observed mainly near the surface of the fluidised bed.
Dominik Müller   +2 more
doaj   +2 more sources

Fluidised Bed Reactors for the Thermochemical Conversion of Biomass and Waste

open access: yesKONA Powder and Particle Journal, 2019
The growing population and economic development globally has led to increasing resource consumption and waste generation. This has generated concern at local, national and international levels on environmental issues including air quality, resource ...
Stefano Iannello   +2 more
doaj   +2 more sources

CFD analysis of the fluidised bed hydrodynamic behaviour inside an isothermal gasifier with different perforated plate distributors [PDF]

open access: yes, 2017
The hydrodynamic behaviour of gas-solid mixtures inside Bed Fluidised Beds (BFB) gasifiers has a major impact on the gasification process due to particles - gas and particle - particle contact mechanisms.
Al-Akaishi, Ahmed   +3 more
core   +2 more sources

Ilmenite as alternative bed material for the combustion of coal and biomass blends in a fluidised bed combustor to improve combustion performance and reduce agglomeration tendency

open access: yesEnergy, 2022
Co-firing coal and biomass has the potential to reduce GHG emissions. However, high levels of alkali and alkaline metals in biomass ash can bring additional issues to the operation of coal-fired boilers. This study investigates the effects of ilmenite as
Eduardo Garcia, Hao Liu
semanticscholar   +1 more source

Artificial neural network models for heat transfer in the freeboard of a bubbling fluidised bed combustion system

open access: yesCase Studies in Thermal Engineering, 2023
The heat transfer in the combustion chamber (freeboard) of a fluidised bed combustor is of critical importance, due to the need for thermal efficiency, the possible environmental impacts, and the increasing costs of fuel and electricity.
Nimeti Doner   +3 more
doaj   +1 more source

Modeling and Simulation of a lab-scale Fluidised Bed [PDF]

open access: yesModeling, Identification and Control, 2002
The flow behaviour of a lab-scale fluidised bed with a central jet has been simulated. The study has been performed with an in-house computational fluid dynamics (CFD) model named FLOTRACS-MP-3D.
Britt Halvorsen, Vidar Mathiesen
doaj   +1 more source

Enrichment of Limestone Used in the Desulphurisation of Fluidised-Bed-Boiler Flue Gases

open access: yesAdsorption Science & Technology, 2021
In this work, we analysed the impact of adding several previously untested Sorbacal calcium-based substances to the raw limestone that is currently used for dry desulphurisation of brown-coal fluidised-bed boilers.
Buryan Petr, Tomas Hlincik
doaj   +1 more source

Liquid injection in a fluidised bed: Temperature uniformity

open access: yesChemical Engineering Science, 2022
Liquid injection in fluidized beds occurs in well-established industrial processes as fluid coking, spray fluidzed bed granulation and condensed mode gas-phase polymerisation. These processes still suffer performance issues due to their complex nature, where liquid injection adds even more complexity. In this work, the effect of liquid injection on the
Milacic, E.   +6 more
openaire   +2 more sources

Catalytic Oxidation of Volatile Organic Compounds Using the Core–Shell Fe2O3-Cenospheric Catalyst in a Fluidised Bed Reactor

open access: yesEnergies, 2023
The results of selected volatile organic compounds (benzene, n-hexane, isopropanol, and formic acid) catalytic oxidation are presented on Fe2O3 cenospheres in the fluidised bed reactor.
Przemysław Migas   +2 more
doaj   +1 more source

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