Results 11 to 20 of about 101,799 (216)

Isothermal CO2 Gasification Reactivity and Kinetic Models of Biomass Char/Anthracite Char

open access: yesBioResources, 2015
Gasification of four biomass chars and anthracite char were investigated under a CO2 atmosphere using a thermo-gravimetric analyzer. Reactivity differences of chars were considered in terms of pyrolysis temperature, char types, crystallinity, and ...
Hai-Bin Zuo   +5 more
doaj   +2 more sources

Gasification of the Char Residues with High Ash Content by Carbon Dioxide

open access: yesEnergies
To increase the carbon conversion of char in gasification, this paper aimed to reveal the gasification behaviours of char residues. Char residues with different ash contents in this work were prepared from Shenmu char and Tejing char. Those char residues
Junjie Xue   +6 more
doaj   +2 more sources

Biomass thermal conversion : pelletisation of lignocelluloses and the effect on the gasification process [PDF]

open access: yes, 2012
Agricultural residues and energy crops constitute an important part of the energy chain although they are not being used extensively in the energy generation processes since they are associated with disadvantages such as low bulk and energy densities ...
Kallis, Kyriakos Xenofon
core   +5 more sources

Kinetic analysis of CO2 gasification of biochar and anthracite based on integral isoconversional nonlinear method

open access: yesHigh Temperature Materials and Processes, 2020
The nonisothermal thermogravimetric analysis was implemented for gasification of sawdust char (SD-char), wheat straw char (WS-char), rice husk char (RH-char), bamboo char (BB-char) and anthracite coal (AC) in the presence of CO2.
Dai Bing   +7 more
doaj   +1 more source

Novel application of red mud as disposal catalyst for pyrolysis and gasification of coal

open access: yesCarbon Resources Conversion, 2021
Red mud (RM) with the high alkalinity as a catalyst was evaluated for coal pyrolysis in a fixed bed as well as CO2 gasification of its resultant char in a thermogravimetric analyzer (TGA).
Zhaohui Chen   +7 more
doaj   +1 more source

The effect of CO on CO2-char gasification [PDF]

open access: yesProceedings of the Combustion Institute, 2021
The effect of CO on the gasification of a Polish coal-derived char was investigated in a fluidised bed from 1123 to 1248 K. Rate expressions developed from Ergun's mechanism or a modified three-step reaction mechanism, coupled with Cylindrical Pore Interpolation Model (CPIM) to account for the intra-particle mass transfer, were developed to predict ...
Zheng, Yaoyao   +2 more
openaire   +2 more sources

Inhibition effect of H2 on char gasification during chemical looping gasification of biomass

open access: yesApplications in Energy and Combustion Science, 2023
Chemical looping gasification (CLG) of biomass produces high contents of syngas, which would have inhibition effect on the gasification of its biomass char.
Meng Tang   +4 more
doaj   +1 more source

Influence of different biomass ash additive on anthracite pyrolysis process and char gasification reactivity

open access: yesInternational Journal of Coal Science & Technology, 2020
Catalytic coal gasification technology shows prominent advantages in enhancing coal gasification reactivity and is restrained by the cost of catalyst. Two typical biomass ash additions, corn stalk ash (CSA, high K–Na and low Si) and poplar sawdust ash ...
Xiaoming Li   +4 more
doaj   +1 more source

Gasification of Continuous Wood Char Bed: Modelling and Experimental Approach

open access: yesChemical Engineering Transactions, 2014
The current paper presents a study combining experimentation and modelling of char gasification in a continuous fixed bed reactor. The char bed gasification was experimentally characterized using the Continuous Fixed Bed reactor (CFiB) at CIRAD ...
G. Teixeira   +5 more
doaj   +1 more source

Recent progress in tar removal by char and the applications: A comprehensive analysis

open access: yesCarbon Resources Conversion, 2020
Tar catalytic removal by char is a promising technology for gasification process because of its porous structure, good catalytic activity, low cost, and easy to treatment after deactivation.
Xi Zeng   +6 more
doaj   +1 more source

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