Journals / Journal of Thermal Engineering / 2020 / Cilt: 6 - Sayı: 3

EXPERIMENTAL ANALYSIS AND KINETIC MODELLING FOR STEAM GASIFICATION OF THE TURKISH LIGNITES

Pages
204–213
Publication Date
2022-10-18
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The data were taken from experiments of Balci and Durusoy and the results obtained from Zonguldak coal and Beypazarı lignite pyrolysed in a vertical tube heated from outside by an inert gas and gasified with steam at elevated temperatures (between 700 °C and 1000 °C) were used in the model.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:During the last decades, the importance of structural parameters has been increased because the models which have been developed using structural parameter can define the gasification process effectively.
📊
Key Findings & Data:In this study, structural parameters, rates of conversion and activation energies of Zonguldak coal and Beypazari lignite have obtained.
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Conclusion & Impact:The data were taken from experiments of Balci and Durusoy and the results obtained from Zonguldak coal and Beypazarı lignite pyrolysed in a vertical tube heated from outside by an inert gas and gasified with steam at elevated temperatures (between 700 °C and 1000 °C) were used in the model.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Random Pore Model · Coal Gasification · Elevated Temperature

Abstract

During the last decades, the importance of structural parameters has been increased because the models which have been developed using structural parameter can define the gasification process effectively. In this study, structural parameters, rates of conversion and activation energies of Zonguldak coal and Beypazari lignite have obtained. The samples of Zonguldak coal and Beypazari lignite used in this study have different characteristics. Pore dimensions, distribution of pores and surface areas were used as structural parameters. Suitable kinetic parameters were determined by fitting the gasification model to experimental data. The random pore model was used to define these kinetic parameters. The data were taken from experiments of Balci and Durusoy and the results obtained from Zonguldak coal and Beypazarı lignite pyrolysed in a vertical tube heated from outside by an inert gas and gasified with steam at elevated temperatures (between 700 °C and 1000 °C) were used in the model.

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Cite This Article

GÜNEY, Ö. F., KOYUN, A. (2022). EXPERIMENTAL ANALYSIS AND KINETIC MODELLING FOR STEAM GASIFICATION OF THE TURKISH LIGNITES. Journal of Thermal Engineering, Cilt: 6 - Sayı: 3, 204–213. https://ajindex.com/articles/566695

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References (12)

  1. Gaye ÖÇ, Hayrettin Y, Gürüz AG. Physical and chemical properties of selected Turkish lignites and their pyrolysis and gasification rates determined by thermogravimetric analysis. J. Anal. Appl. Pyrolysis; 2007;80:262−268.
  2. Zhang Y, Ashizawa M, Kajitani S, Miura K. Proposal of a semi-empirical kinetic model to reconcile with gasification reactivity profiles of biomass chars. Fuel 2008;87:475-481
  3. Watanabe H, Otaka M, Numerical simulation of coal gasification in entrained flow coal gasifier. Fuel 2006;85:1935-1943.
  4. Zou JH, Zhou ZJ, Wang FC, Zhang W, Dai ZH, Liu HF, Yu ZH. Modeling reaction kinetics of petroleum coke gasification with CO2. Chemical Eng. and Proc. 2007;46:630–636.
  5. Xu S, Zhou Z, Gao X, Yu G, Gong X. The gasification reactivity of unburned carbon present in gasification slag from entrained-flow gasifier. Fuel 2009;90:1062-1070.
  6. Fermoso J, Arias B, Pevida C, Plaza MG, Rubiera F, Pis JJ. Kinetic Models Comparison for Steam Gasification of Different Nature Fuel Chars. Journal of Thermal Analysis and Calorimetry, 2008;91:779–786.
  7. De Micco G, Nasjleti A, Bohé AE. Kinetics of the gasification of a Rio Turbio coal under different pyrolysis temperatures. Fuel 2012;95:537-543.
  8. Liu TF, Fang YT, Wang Y. An experimental investigation into the gasification reactivity of chars prepared at high temperatures. Fuel 2008;87:460–466.
  9. Liu H, Luo C, Kato S, Uemiya S, Kaneko M, Kojima T. Kinetics of CO2/Char gasification at elevated temperatures Part I: Experimental results. Fuel Processing Technology 2006;87:775–781
  10. Matsumoto K, Takeno K, Ichinose T, Ogi T, Nakanishi M. Gasification reaction kinetics on biomass char obtained as by-product of gasification in an entrained-flow gasifier with steam and oxygen at 900–1000 °C. Fuel 2009;88:519-527.
  11. Everson RC, Neomagus HW, Kaitano R, Falcon R, Van Alphen C, Cann V. Properties of high ash coal-char particles derived from inertinite-rich coal: II. Gasification kinetics with carbon dioxide. Fuel 2008;87:3403–08.
  12. Kajitani S, Suzuki N, Ashizawa M, Hara S. CO2 gasification rate analysis of coal