Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions

Myung Won Seo; Sang Done Kim; See Hoon Lee; Jae Goo Lee

doi:10.1016/j.jaap.2010.03.010

Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions

Myung Won Seo, Sang Done Kim, See Hoon Lee, Jae Goo Lee

School of Environmental Engineering

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

49 Scopus citations

Abstract

Pyrolysis characteristics of the sub-bituminous coal, Refuse Derived Fuel (RDF) and their blends were determined at non-isothermal (15 °C/min) and isothermal (500-800 °C) conditions in thermo-gravimetric analyzer (TGA) and a thermobalance reactor. The decomposition rates of coal and RDF blends are higher than the calculated values of each fuel at the lower temperature ranges (300-385 °C). In the isothermal condition, activation energies of coal and RDF blends are lower and the pyrolysis reactivity is higher than the calculated values of each fuel. The synergistic effect exhibits remarkably with the RDF blend ratio of 50% at 700 °C. The structural variation and inorganic matters of chars from coal and RDF were determined by using BET, SEM, and XRD techniques. Surface area of the blend char increases and the average pore size decreases with pyrolysis. The addition of RDF into coal produces sulfur fixation of CaS and CaSO₃ based on the XRD data.

Original language	English
Pages (from-to)	160-167
Number of pages	8
Journal	Journal of Analytical and Applied Pyrolysis
Volume	88
Issue number	2
DOIs	https://doi.org/10.1016/j.jaap.2010.03.010
State	Published - Jul 2010

Keywords

Co-pyrolysis
Coal
Kinetic
RDF
Synergistic effect

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title = "Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions",

abstract = "Pyrolysis characteristics of the sub-bituminous coal, Refuse Derived Fuel (RDF) and their blends were determined at non-isothermal (15 °C/min) and isothermal (500-800 °C) conditions in thermo-gravimetric analyzer (TGA) and a thermobalance reactor. The decomposition rates of coal and RDF blends are higher than the calculated values of each fuel at the lower temperature ranges (300-385 °C). In the isothermal condition, activation energies of coal and RDF blends are lower and the pyrolysis reactivity is higher than the calculated values of each fuel. The synergistic effect exhibits remarkably with the RDF blend ratio of 50% at 700 °C. The structural variation and inorganic matters of chars from coal and RDF were determined by using BET, SEM, and XRD techniques. Surface area of the blend char increases and the average pore size decreases with pyrolysis. The addition of RDF into coal produces sulfur fixation of CaS and CaSO3 based on the XRD data.",

keywords = "Co-pyrolysis, Coal, Kinetic, RDF, Synergistic effect",

author = "Seo, {Myung Won} and Kim, {Sang Done} and Lee, {See Hoon} and Lee, {Jae Goo}",

year = "2010",

month = jul,

doi = "10.1016/j.jaap.2010.03.010",

language = "English",

volume = "88",

pages = "160--167",

journal = "Journal of Analytical and Applied Pyrolysis",

issn = "0165-2370",

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T1 - Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions

AU - Seo, Myung Won

AU - Kim, Sang Done

AU - Lee, See Hoon

AU - Lee, Jae Goo

PY - 2010/7

Y1 - 2010/7

N2 - Pyrolysis characteristics of the sub-bituminous coal, Refuse Derived Fuel (RDF) and their blends were determined at non-isothermal (15 °C/min) and isothermal (500-800 °C) conditions in thermo-gravimetric analyzer (TGA) and a thermobalance reactor. The decomposition rates of coal and RDF blends are higher than the calculated values of each fuel at the lower temperature ranges (300-385 °C). In the isothermal condition, activation energies of coal and RDF blends are lower and the pyrolysis reactivity is higher than the calculated values of each fuel. The synergistic effect exhibits remarkably with the RDF blend ratio of 50% at 700 °C. The structural variation and inorganic matters of chars from coal and RDF were determined by using BET, SEM, and XRD techniques. Surface area of the blend char increases and the average pore size decreases with pyrolysis. The addition of RDF into coal produces sulfur fixation of CaS and CaSO3 based on the XRD data.

AB - Pyrolysis characteristics of the sub-bituminous coal, Refuse Derived Fuel (RDF) and their blends were determined at non-isothermal (15 °C/min) and isothermal (500-800 °C) conditions in thermo-gravimetric analyzer (TGA) and a thermobalance reactor. The decomposition rates of coal and RDF blends are higher than the calculated values of each fuel at the lower temperature ranges (300-385 °C). In the isothermal condition, activation energies of coal and RDF blends are lower and the pyrolysis reactivity is higher than the calculated values of each fuel. The synergistic effect exhibits remarkably with the RDF blend ratio of 50% at 700 °C. The structural variation and inorganic matters of chars from coal and RDF were determined by using BET, SEM, and XRD techniques. Surface area of the blend char increases and the average pore size decreases with pyrolysis. The addition of RDF into coal produces sulfur fixation of CaS and CaSO3 based on the XRD data.

KW - Co-pyrolysis

KW - Coal

KW - Kinetic

KW - RDF

KW - Synergistic effect

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DO - 10.1016/j.jaap.2010.03.010

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SN - 0165-2370

VL - 88

SP - 160

EP - 167

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

IS - 2

ER -

Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions

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Keywords

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