Differences between Incineration, Gasification and Pyrolysis
Key factors influencing the environmental performance of pyrolysis, gasification and incineration Waste-to-Energy technologies
... The results from this study show developing attractiveness for pyrolysis and gasification WtE technologies. However, these technolo- gies are still less commercialized at present. One important obstacle is ...
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Coal and Biomass Pyrolysis and Gasification – A Review
... to gasification, namely waste wood, plastics and aluminum, Municipal Solid Waste (MSW), Refuse-derived fuel (RDF), agricultural and industrial wastes, sewage sludge, switchgrass, discarded seed corn, corn stover ...
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Hydrogen production from biomass and plastic mixtures by pyrolysis-gasification
... (first pyrolysis stage) is responsible for the inhibition of recondensation reactions forming the char ...the gasification reactor, the gas yield increases slightly from ...the ...
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Techno-economic and uncertainty analysis of fast pyrolysis and gasification for biofuel production
... Energy commodity prices exhibit significant volatility due to the complex nature of the energy market [26]. This volatility can be captured by appropriate probability distributions. Several candidate distributions were ...
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Critical Analysis of Pyrolysis and Gasification Applied to Waste Fractions with Growing Energetic Content
... are differences between wells for sampling exhaust gases or exhaust gases to the chimney, the range of operating temperatures, the gas flow channel dimensions and can be heated or unheated ...
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Transformation of char structure and alkali and alkali earth metallic species during pyrolysis and gasification
... large differences in char structure at low ...catalytic gasification in air [31] and steam [32]. The gasification reaction could take place preferentially at the catalyst ...the gasification ...
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Influence of different biomass ash additive on anthracite pyrolysis process and char gasification reactivity
... mechanical mixing method in mortar. The mass ratios of biomass ash in the mixtures were 20%, 50% and 80%, respectively. The corresponding char samples were named on the basis of the type and mass ratio of biomass ash. ...
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Product Chemistry and Process Efficiency of Biomass Torrefaction, Pyrolysis and Gasification Studied by High-Throughput Techniques and Multivariate Analysis.
... a pyrolysis based ...combinations, Pyrolysis-molecular beam mass spectrometry (Py-MBMS) was used to analyze primary pyrolysis ...ratios. Pyrolysis vapor yield was estimated by integration of ...
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Tar formation in pyrolysis and gasification
... The higher concentrations of hydrocarbons at which Jess obtained his data may have increased the reactivity. This could have a major effect in the case of benzene, as we know from other studies that the kinetics of ...
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Pyrolysis of waste plastics into chemicals as an alternative to landfilling or incineration
... difference between plastics manufactured and recycled was assumed to largely end up in landfills while a minor fraction is either incinerated or indiscriminately ...plastic incineration in South Africa as ...
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CO2 gasification and pyrolysis reactivity evaluation of oil shale
... CO2 gasification and pyrolysis of four types of oil shales were compared in this ...Comparison between non-isothermal CO2 gasification and pyrolysis revealed the interactions ...
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Oxidative Pyrolysis of Agricultural Residues in Gasification and Carbonization Processes
... autothermal pyrolysis process was calculated to be ...autothermal pyrolysis in fixed beds of agricultural residues ...oscillated between 650°C and ...
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Influence of inorganic matter on wood pyrolysis at gasification temperature
... the pyrolysis of Japanese cedar (Cryptomeria japonica) wood was studied at a gasifi cation temperature of 800°C with demin- eralization through acid ...the pyrolysis of cellulose, hemicellulose, and lignin ...
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Modelling of down-draft gasification of biomass - An integrated pyrolysis, combustion and reduction process
... difference between the experimental results and the model temperature prediction; first, the gasifier operates in the unsteady regime in practical applications because of the effect of vibrating ...
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Pyrolysis/gasification of cellulose, hemicellulose and lignin for hydrogen production in the presence of various nickel-based catalysts
... The catalysts were prepared by a co-precipitation method with an initial Ni-loading mole ratio of 20 mol.%. Ni(NO 3 ) 3 ∙6H 2 O (≥97.0%), Ca(NO 3 ) 2 ∙4H 2 O (≥99%), Zn(NO 3 ) 2 ∙6H 2 O (≥99%), Al(NO 3 ) 3 ∙9H 2 O ...
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Nickel based catalysts for hydrogen production from the pyrolysis/gasification of refuse derived fuel (RDF)
... from the experiments carried out with the sand bed, whereas single ring compounds such as styrene were detected in the tar samples from experiments carried out using catalysts. The change in the presence of 3-4 aromatic ...
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Control of steam input to the pyrolysis-gasification of waste plastics for improved production of hydrogen or carbon nanotubes
... reaction between the ...the pyrolysis products from the first stage pyrolysis step reach the catalyst they will behave in a manner similar to the aromatic sources used by Jackson et ...
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Thermodynamic analysis of gasification and pyrolysis of lignocellulosic biomass : parametric study, energy/exergy balance and kinetic modelling
... For pyrolysis, at the respective temperatures of 800°C and 900°C, tar energy decreased from ...for gasification. The values of tar energy for pyrolysis represent between ...in ...
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Effect of calcium addition on Mg-AlOx supported Ni catalysts for hydrogen production from pyrolysis-gasification of biomass
... from gasification [21, ...relationship between Ca addition and the catalytic activities for producing hydrogen and the coke formation and metal sintering on the reacted catalysts was ...
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Resource efficiency or economy of scale: Biorefinery supply chain configurations for co-gasification of black liquor and pyrolysis liquids
... trade-off between economy of scale and biomass efficiency should prioritise biomass e fficiency, if the biorefinery investment can replace capital intensive equipment on site and an alternative investment credit is ...
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