Effect of Nitrogen Doping on Reactivity of Coal Char in Reducing NO
Sign Up to like & getrecommendations! Published in 2018 at "Canadian Journal of Chemical Engineering"
DOI: 10.1002/cjce.23022
Abstract: Mixing coal char into coal powder and enhancing its reactivity with NO in the combustion process of a layer burning furnace is an effective method to realize low-cost resource reduction of NOx. To enhance NO… read more here.
Keywords: nitrogen; char; nitrogen doping; coal char ... See more keywords
Structural Characterization and NO Generation Characteristics of Coal Char under O2/CO2 Atmosphere
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Thermal Science"
DOI: 10.1007/s11630-021-1484-6
Abstract: The evolution of pore structure and functional groups of coal char in different stages of Shenhua coal combustion process in O2/CO2 atmosphere was studied by the low temperature nitrogen adsorption method, the scanning electron microscopy… read more here.
Keywords: coal char; generation; functional groups; co2 atmosphere ... See more keywords
On the evolution of pore microstructure during coal char activation with steam/CO2 mixtures
Sign Up to like & getrecommendations! Published in 2020 at "Carbon"
DOI: 10.1016/j.carbon.2019.11.088
Abstract: Abstract The present work develops a novel mathematical model for coal char activation with CO2, steam, and a CO2/steam mixture. The main assumption is that CO2 and steam react with distinct active sites, considered by… read more here.
Keywords: co2; coal char; activation; steam ... See more keywords
Experimental and kinetics studies on separate physicochemical effects of steam on coal char combustion
Sign Up to like & getrecommendations! Published in 2020 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2020.06.035
Abstract: Abstract The synthetic effect of H2O on the combustion characteristics of coal char is complicated due to its thermal (high volumetric heat capacity), chemical, and dilution (thereby low oxygen concentration) effects. To assess the impact… read more here.
Keywords: carbon consumption; char; combustion; coal char ... See more keywords
Reaction process and characteristics for coal char gasification under changed CO2/H2O atmosphere in various reaction stages
Sign Up to like & getrecommendations! Published in 2021 at "Energy"
DOI: 10.1016/j.energy.2021.120677
Abstract: Abstract During the operation of industrial gasifier, the concentrations of CO2 and H2O in gasification media vary with the change of stages, causing the gasification process being affected accordingly. Therefore, dividing the gasification process into… read more here.
Keywords: coal char; process; h2o; reaction ... See more keywords
Reactivity prediction and mechanism analysis of raw and demineralized coal char gasification
Sign Up to like & getrecommendations! Published in 2021 at "Energy"
DOI: 10.1016/j.energy.2021.120724
Abstract: Abstract A series of thermogravimetric experiments were conducted to study the gasification kinetics of raw and demineralized coal char. The gasification mechanism was reveled through the kinetic analysis and the structure evolution. The systematic analyses… read more here.
Keywords: demineralized coal; coal char; raw demineralized; gasification ... See more keywords
A surface activation function method to determine the intrinsic reactivity of coal char oxyfuel conversion
Sign Up to like & getrecommendations! Published in 2019 at "Fuel"
DOI: 10.1016/j.fuel.2018.11.100
Abstract: Abstract The kinetics of coal/char oxyfuel combustion by isothermal and non-isothermal thermogravimetric analysis is still controversial. The two methods were compared according to the kinetics of two coal chars (NCP anthracite, DT bituminous) combustion in… read more here.
Keywords: activation; coal char; surface; char ... See more keywords
Characteristics and kinetics of coal char steam gasification under microwave heating
Sign Up to like & getrecommendations! Published in 2019 at "Fuel"
DOI: 10.1016/j.fuel.2019.115899
Abstract: Abstract The behavior and kinetics of coal char steam gasification under microwave heating are investigated. The influence of the coal char particle size, water injection rate, and reaction temperature on the carbon conversion rate and… read more here.
Keywords: steam gasification; char steam; coal char; microwave heating ... See more keywords
K2CO3-promoted methane pyrolysis on nickel/coal-char hybrids
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Analytical and Applied Pyrolysis"
DOI: 10.1016/j.jaap.2018.11.001
Abstract: Abstract Catalytic methane pyrolysis (CMP) is an environmentally benign and promising strategy for hydrogen production. However, one of the important challenges is to creatively design and prepare catalysts with high and stable catalytic activity. To… read more here.
Keywords: coal char; pyrolysis; nickel coal; char hybrids ... See more keywords
Formation and O2/CO2 combustion characteristics of real-environment coal char in high-temperature oxy-fuel conditions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of The Energy Institute"
DOI: 10.1016/j.joei.2019.01.007
Abstract: Abstract Oxygen-fuel combustion is a promising technology for CO2 emission reduction. The high-temperature entrained flow reactor and high-temperature drop tube furnace were used to analyses the formation and O2/CO2 combustion characteristics of real-environment coal char… read more here.
Keywords: fuel; coal char; high temperature; combustion ... See more keywords
A perspective on sodium-induced agglomeration of Zhundong coal gasification: Experiments and calculations
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The Energy Institute"
DOI: 10.1016/j.joei.2020.10.006
Abstract: Abstract In order to provide basic knowledge for the gasification utilization of low-rank Zhundong (ZD) coal in the process of circulating fluidized bed (CFB), this study focuses on gasification reactivity and ash related agglomeration of… read more here.
Keywords: agglomeration; temperature; coal char; coal ... See more keywords