Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis

Bhagavatula, Abhijit; Huffman, Gerald; Shah, Naresh; Honaker, Rick

doi:10.1155/2014/914856

Title: Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis

Abstract

The thermal evolution profiles and kinetic parameters for the pyrolysis of two Montana coals (DECS-38 subbituminous coal and DECS-25 lignite coal), one biomass sample (corn stover), and their blends (10%, 20%, and 30% by weight of corn stover) have been investigated at a heating rate of 5°C/min in an inert nitrogen atmosphere, using thermogravimetric analysis. The thermal evolution profiles of subbituminous coal and lignite coal display only one major peak over a wide temperature distribution, ~152–814°C and ~175–818°C, respectively, whereas the thermal decomposition profile for corn stover falls in a much narrower band than that of the coals, ~226–608°C. The nonlinearity in the evolution of volatile matter with increasing percentage of corn stover in the blends verifies the possibility of synergistic behavior in the blends with subbituminous coal where deviations from the predicted yield ranging between 2% and 7% were observed whereas very little deviations (1%–3%) from predicted yield were observed in blends with lignite indicating no significant interactions with corn stover. In addition, a single first-order reaction model using the Coats-Redfern approximation was utilized to predict the kinetic parameters of the pyrolysis reaction. The kinetic analysis indicated that each thermal evolution profile may be represented as a single first-ordermore »« less

Authors:

^[1]; Huffman, Gerald ^[1];

^[1];

^[2]

Consortium for Fossil Fuel Science, Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40508, USA
Department of Mining Engineering, University of Kentucky, Lexington, KY 40508, USA

Publication Date:: Wed Mar 19 00:00:00 EDT 2014

Sponsoring Org.:: USDOE

OSTI Identifier:: 1227758

Resource Type:: Published Article

Journal Name:: Journal of Fuels

Additional Journal Information:: Journal Name: Journal of Fuels Journal Volume: 2014; Journal ID: ISSN 2356-7392

Publisher:: Hindawi Publishing Corporation

Country of Publication:: Country unknown/Code not available

Language:: English

Citation Formats


                    Bhagavatula, Abhijit, Huffman, Gerald, Shah, Naresh, and Honaker, Rick. Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis.  Country unknown/Code not available: N. p., 2014. 
Web.  doi:10.1155/2014/914856.

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                    Bhagavatula, Abhijit, Huffman, Gerald, Shah, Naresh, & Honaker, Rick. Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis.  Country unknown/Code not available.  https://doi.org/10.1155/2014/914856

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                    Bhagavatula, Abhijit, Huffman, Gerald, Shah, Naresh, and Honaker, Rick. Wed .  
"Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis".  Country unknown/Code not available.  https://doi.org/10.1155/2014/914856.

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@article{osti_1227758,

  title        = {Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis},

  author       = {Bhagavatula, Abhijit and Huffman, Gerald and Shah, Naresh and Honaker, Rick},

  abstractNote = {The thermal evolution profiles and kinetic parameters for the pyrolysis of two Montana coals (DECS-38 subbituminous coal and DECS-25 lignite coal), one biomass sample (corn stover), and their blends (10%, 20%, and 30% by weight of corn stover) have been investigated at a heating rate of 5°C/min in an inert nitrogen atmosphere, using thermogravimetric analysis. The thermal evolution profiles of subbituminous coal and lignite coal display only one major peak over a wide temperature distribution, ~152–814°C and ~175–818°C, respectively, whereas the thermal decomposition profile for corn stover falls in a much narrower band than that of the coals, ~226–608°C. The nonlinearity in the evolution of volatile matter with increasing percentage of corn stover in the blends verifies the possibility of synergistic behavior in the blends with subbituminous coal where deviations from the predicted yield ranging between 2% and 7% were observed whereas very little deviations (1%–3%) from predicted yield were observed in blends with lignite indicating no significant interactions with corn stover. In addition, a single first-order reaction model using the Coats-Redfern approximation was utilized to predict the kinetic parameters of the pyrolysis reaction. The kinetic analysis indicated that each thermal evolution profile may be represented as a single first-order reaction. Three temperature regimes were identified for each of the coals while corn stover and the blends were analyzed using two and four temperature regimes, respectively.},

  doi          = {10.1155/2014/914856},

  journal      = {Journal of Fuels},

  number       = ,

  volume       = 2014,

  place        = {Country unknown/Code not available},

  year         = {Wed Mar 19 00:00:00 EDT 2014},

  month        = {Wed Mar 19 00:00:00 EDT 2014}

}

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Title: Evaluation of Thermal Evolution Profiles and Estimation of Kinetic Parameters for Pyrolysis of Coal/Corn Stover Blends Using Thermogravimetric Analysis

Abstract

Citation Formats

RETRACTED: Investigations into the pyrolytic behaviour of coal/biomass blends using thermogravimetric analysis journal, April 2004

Lack of synergetic effects in the pyrolytic characteristics of woody biomass/coal blends under low and high heating rate regimes journal, July 2002

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Modelling of the pyrolysis of biomass particles. Studies on kinetics, thermal and heat transfer effects journal, August 1991

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Synergy in devolatilization characteristics of lignite and hazelnut shell during co-pyrolysis journal, February 2007

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A modification to the Freeman and Carroll method for the analysis of the kinetics of non-isothermal processes journal, March 1983

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Pyrolysis characteristics and kinetics of Arundo donax using thermogravimetric analysis journal, September 2009

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A model for primary and heterogeneous secondary reactions of wood pyrolysis journal, June 1996

Thermogravimetric characteristics and kinetic of plastic and biomass blends co-pyrolysis journal, November 2006

The Application of Thermoanalytical Techniques to Reaction Kinetics: The Thermogravimetric Evaluation of the Kinetics of the Decomposition of Calcium Oxalate Monohydrate journal, April 1958

Co-gasification of different rank coals with biomass and petroleum coke in a high-pressure reactor for H2-rich gas production journal, May 2010

Kinetic Parameters from Thermogravimetric Data journal, January 1964

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Modelling and experimental studies on pyrolysis of biomass particles journal, March 2008

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A simple kinetic analysis to determine the intrinsic reactivity of coal chars journal, October 2005

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Modelling of pyrolysis of coal–biomass blends using thermogravimetric analysis journal, November 2008

From coal to biomass gasification: Comparison of thermodynamic efficiency journal, July 2007

Modeling chemical and physical processes of wood and biomass pyrolysis journal, February 2008

Investigation on thermochemical behaviour of low rank Malaysian coal, oil palm biomass and their blends during pyrolysis via thermogravimetric analysis (TGA) journal, June 2010

RETRACTED: Investigations into the pyrolytic behaviour of coal/biomass blends using thermogravimetric analysis
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Lack of synergetic effects in the pyrolytic characteristics of woody biomass/coal blends under low and high heating rate regimes
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Countercurrent Fixed-Bed Gasification of Biomass at Laboratory Scale
journal, July 1999

Reactivity of Coal and Char. 1. In Carbon Dioxide Atmosphere
journal, January 1977

Modelling of the pyrolysis of biomass particles. Studies on kinetics, thermal and heat transfer effects
journal, August 1991

Devolatilization rate of biomasses and coal–biomass blends: an experimental investigation
journal, May 2002

Synergy in devolatilization characteristics of lignite and hazelnut shell during co-pyrolysis
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Adiabatic fixed-bed gasification of coal, dairy biomass, and feedlot biomass using an air–steam mixture as an oxidizing agent
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A modification to the Freeman and Carroll method for the analysis of the kinetics of non-isothermal processes
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Pyrolysis characteristics and kinetics of Arundo donax using thermogravimetric analysis
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