Particle size effect on the oxidation mechanism of lignites

被引:2
作者
Kök, MV [1 ]
机构
[1] Middle E Tech Univ, Dept Petr & Nat Gas Engn, TR-06531 Ankara, Turkey
关键词
lignite; combustion; particle size; oxidation mechanism;
D O I
10.1016/S0040-6031(99)00213-0
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this research, effect of particle size on the oxidation mechanisms of Cayirhan, Tuncbilek and Soma lignites are studied. Non-isothermal thermogravimetry and derivative thermogravimetry (TG/DTG) experiments were carried out for 12 different size fractions. Data obtained from TG/DTG experiments are converted into dimensionless time (instantaneous size/original size) versus dimensionless time (time/burn-out time) to show the progress of oxidation mechanisms of lignites, It was found that lignites show linear behaviour at elevated temperatures, which justifies the assumption that chemical reaction is the controlling step. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:121 / 125
页数:5
相关论文
共 50 条
[41]   Effect of particle size and mass on nano to micron particle agglomeration [J].
Kim, H ;
Seo, M ;
Song, J .
SICE 2004 ANNUAL CONFERENCE, VOLS 1-3, 2004, :1923-1926
[42]   Effect of the Particle Size of Al/Ni Multilayer Powder on the Exothermic Characterization [J].
Miyake, Shugo ;
Izumi, Taisei ;
Yamamoto, Rino .
MATERIALS, 2020, 13 (19) :1-12
[43]   Effect of TiH2 Particle Size on Properties of Emulsion Explosive [J].
Du, M. -R. ;
Chen, Y. -H. ;
Cao, W. ;
Wang, R. -S. ;
Hu, S. -S. ;
Wang, T. -Z. ;
Chen, Z. -F. .
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B, 2024, 18 (01) :189-202
[44]   Slurryability and flowability of coal water slurry: Effect of particle size distribution [J].
Singh, Harmanpreet ;
Kumar, Satish ;
Mohapatra, Saroj Kumar ;
Prasad, Shashi Bhushan ;
Singh, Jatinder .
JOURNAL OF CLEANER PRODUCTION, 2021, 323
[45]   Effect of biomass on burnouts of Turkish lignites during co-firing [J].
Haykiri-Acma, H. ;
Yaman, S. .
ENERGY CONVERSION AND MANAGEMENT, 2009, 50 (09) :2422-2427
[46]   Influence of wet oxidation on the surface area and the porosity of some lignites [J].
Yaman, S ;
Karatepe, N ;
Küçükbayrak, S .
FUEL, 2000, 79 (09) :1017-1022
[47]   Relative effect of particle size on the physical properties of corn meal extrudates: Effect of particle size on the extrusion of corn meal [J].
Carvalho, Carlos W. P. ;
Takeiti, Cristina Y. ;
Onwulata, Charles I. ;
Pordesimo, Lester O. .
JOURNAL OF FOOD ENGINEERING, 2010, 98 (01) :103-109
[48]   Particle Size Effect on CH4 Oxidation Over Noble Metals: Comparison of Pt and Pd Catalysts [J].
Stakheev, A. Yu. ;
Batkin, A. M. ;
Teleguina, N. S. ;
Bragina, G. O. ;
Zaikovsky, V. I. ;
Prosvirin, I. P. ;
Khudorozhkov, A. K. ;
Bukhtiyarov, V. I. .
TOPICS IN CATALYSIS, 2013, 56 (1-8) :306-310
[49]   The effect of the TiC particle size on the preferred oxidation temperature for self-healing of oxide ceramic matrix materials [J].
L. Boatemaa ;
J. C. Brouwer ;
S. van der Zwaag ;
W. G. Sloof .
Journal of Materials Science, 2018, 53 :5973-5986
[50]   Effect of Particle Size on Boron Combustion in Air [J].
A. P. Shpara ;
D. A. Yagodnikov ;
A. V. Sukhov .
Combustion, Explosion, and Shock Waves, 2020, 56 :471-478