Abstract
Gasification behaviors of biomass char and coal char were analyzed by thermal gravimetric method, and influences of gasification temperature and different gasifying agents were investigated. At the same time, kinetics of char gasification under CO2 condition and steam condition were investigated by Chou model. Under the same condition, gasification characteristics of biomass char are better than that of coal char, and meanwhile performance of steam is better than CO2 as gasifying agent. From kinetics analysis, among 1173~1323K range, gasification of biomass char and coal char is under chemical reaction control both for steam and CO2 condition. Gasification process of biomass char could be simulated by flat particle gas-solid reaction of Chou model, with activation energy as 113.7kJ/mol and76.4kJ/mol for CO2 and steam condition respectively; gasification of coal char could be simulated by spherical particle gas-solid reaction of Chou model, with activation energy 182.6kJ/mol and160.9kJ/mol for CO2 and steam condition respectively.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Zhou Y et al., “Scheme of direct reduction iron production combined with coal gasification,” Iron and Steel, 2012, 47(11):27–35.
Qi Y et al., “Present status and trend of direct reduction technology development in China,” China Metallury, 2013, 23(1):9–14.
Liu H et al., “A study of the combustion characteristics of biomass and coal mixed fring,” Journal of Engineering for Thermal Power, 2002, 17(5):451–454.
Zhang S et al., “Pyrolysis an dlow temperature catalytic gasification of manure,” Journal of Fuel Chemistry and Technology, 2009, 37(6):673–678.
Fouga GG, Micco GD, and Bohe AE, “Kinetic study of argentinean asphaltite gasification using carbon dioxide as gasifying agent.” Fuel, 2011, 90474–680.
Gao C et al., “Co-gasification of biomass with coal and oil sand coke in a drop tube furnace,” Energy Fuels, 2010, 24:232–240.
Seo DJ et al., “Gasification reactivity biomass char with CO2,” Biomass and Bioenergy, 2010, 34:1946–1953.
Chou K et al., “Kinetics of absorption and desorption of hydrogen in alloy powder,” International Journal of Hydrogen Energy, 2005, 30:301–309.
Hu Z et al., “Preparation and properties of biomass char for ironmaking,” Journal of University of Science and Technology Beijing, 2012, 3(9):998–1005.
Zuo HB et al., “Isothermal CO2 gasification reactivity and kinetic models of biomass char/anthracite char,” BioResources, 2015, 10(3), 5242–5255.
Everson RC et al., “Reaction kinetics of pulverized coal-chars derived from inertinite-rich coal discards: Gasification with carbon dioxide and steam,” Fuel, 2006, 85(7–8):1076–1082.
Moulijn JA, Kapteijin F, “Towards a unified theory of reactions of carbon with oxygen-containing molecules,” Carbon, 1995, 33(8):1155–1165.
Ge P et al., “Study on catalytic gasification characteristics of pin char with CO2,” Coal Conversion, 2013, 36 (1):47–50.
Zhao H et al., “Kinetic of gasification of biomass semi-cokes in high temperature steam,” Journal of Power Engineering, 2008, 28(3):453–458.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2016 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Wang, Gw., Zhang, Jl., Shao, Jg., Zhang, Pc. (2016). Experiments and Kinetics Modeling for Gasification of Biomass Char and Coal Char under CO2 and Steam Condition. In: TMS 2016 145th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48254-5_45
Download citation
DOI: https://doi.org/10.1007/978-3-319-48254-5_45
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48624-6
Online ISBN: 978-3-319-48254-5
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)