Co-gasification of bituminous coal-pine sawdust blended char with H2O at temperatures of 750-850 °C

Hyo Jae Jeong; In Sik Hwang; Jungho Hwang

doi:10.1016/j.fuel.2015.04.018

Co-gasification of bituminous coal-pine sawdust blended char with H₂O at temperatures of 750-850 °C

Hyo Jae Jeong, In Sik Hwang, Jungho Hwang

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

This short communication reports on an experimental study that is an expansion of our previous study (Jeong et al., 2014). In the present study, the coal-biomass blended char was co-gasified with H₂O. Similar to the results of our previous study, the improvement of the blended char's reactivity with increasing the biomass amount was observed. The volume reaction model (VRM), shrinking core model (SCM), and random pore model (RPM) were applied to obtain the kinetic parameters, which were the pre-exponential factors and the activation energies. The RPM was determined to describe the char gasification the best according to the results of a comparison between the experimental reactivity and the results predicted using each model. Synergy of the reactivity was seen at all of the coal-biomass ratios and it increased as the amount of biomass increased.

Original language	English
Pages (from-to)	26-29
Number of pages	4
Journal	Fuel
Volume	156
DOIs	https://doi.org/10.1016/j.fuel.2015.04.018
Publication status	Published - 2015 Sept 15

Bibliographical note

Funding Information:
This study was supported by the Converged Energy Materials Research Center (CEMRC) of the Republic of Korea. The authors gratefully acknowledge this support (NE-31).

Publisher Copyright:
© 2015 Elsevier Ltd.

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

Access to Document

10.1016/j.fuel.2015.04.018

Cite this

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title = "Co-gasification of bituminous coal-pine sawdust blended char with H2O at temperatures of 750-850 °C",

abstract = "This short communication reports on an experimental study that is an expansion of our previous study (Jeong et al., 2014). In the present study, the coal-biomass blended char was co-gasified with H2O. Similar to the results of our previous study, the improvement of the blended char's reactivity with increasing the biomass amount was observed. The volume reaction model (VRM), shrinking core model (SCM), and random pore model (RPM) were applied to obtain the kinetic parameters, which were the pre-exponential factors and the activation energies. The RPM was determined to describe the char gasification the best according to the results of a comparison between the experimental reactivity and the results predicted using each model. Synergy of the reactivity was seen at all of the coal-biomass ratios and it increased as the amount of biomass increased.",

author = "Jeong, {Hyo Jae} and Hwang, {In Sik} and Jungho Hwang",

note = "Funding Information: This study was supported by the Converged Energy Materials Research Center (CEMRC) of the Republic of Korea. The authors gratefully acknowledge this support (NE-31). Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

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AU - Jeong, Hyo Jae

AU - Hwang, In Sik

AU - Hwang, Jungho

N1 - Funding Information: This study was supported by the Converged Energy Materials Research Center (CEMRC) of the Republic of Korea. The authors gratefully acknowledge this support (NE-31). Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/9/15

Y1 - 2015/9/15

N2 - This short communication reports on an experimental study that is an expansion of our previous study (Jeong et al., 2014). In the present study, the coal-biomass blended char was co-gasified with H2O. Similar to the results of our previous study, the improvement of the blended char's reactivity with increasing the biomass amount was observed. The volume reaction model (VRM), shrinking core model (SCM), and random pore model (RPM) were applied to obtain the kinetic parameters, which were the pre-exponential factors and the activation energies. The RPM was determined to describe the char gasification the best according to the results of a comparison between the experimental reactivity and the results predicted using each model. Synergy of the reactivity was seen at all of the coal-biomass ratios and it increased as the amount of biomass increased.

AB - This short communication reports on an experimental study that is an expansion of our previous study (Jeong et al., 2014). In the present study, the coal-biomass blended char was co-gasified with H2O. Similar to the results of our previous study, the improvement of the blended char's reactivity with increasing the biomass amount was observed. The volume reaction model (VRM), shrinking core model (SCM), and random pore model (RPM) were applied to obtain the kinetic parameters, which were the pre-exponential factors and the activation energies. The RPM was determined to describe the char gasification the best according to the results of a comparison between the experimental reactivity and the results predicted using each model. Synergy of the reactivity was seen at all of the coal-biomass ratios and it increased as the amount of biomass increased.

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