Elucidation of the formation and opening mechanism of closed pores within coal chars

Kagaku Kogaku Ronbunshu

Volumn 34, Issue 3, 2008, Pages 388-395

  Komiya, Takashi ^a   Ochiai, Tetsuya ^a,b   Morimoto, Tatsuya ^a,c   Oda, Hirokazu ^a  

^a KANSAI UNIVERSITY   (Japan)

^b Sekisui Plastics Co Ltd   (Japan)

^c Mitsui Mining Co Ltd   (Japan)

Author keywords

Air oxidation; Closed pore; Coal char; Coal gasification; Pore structure; Pyrolysis

Indexed keywords

ADSORPTION; CARBON; CHEMICAL REACTIONS; COAL; COAL INDUSTRY; COKING; CRYSTAL STRUCTURE; GAS ADSORPTION; GAS GENERATORS; GASIFICATION; GRAPHITE; HELIUM; INERT GASES; PHENOLS; PYROLYSIS; RESINS; SPECIFIC SURFACE AREA; SURFACE REACTIONS; THERMOGRAVIMETRIC ANALYSIS;

AIR OXIDATION; CHAR GASIFICATION; CLOSED PORE; COAL CHAR; COAL CHARS; COAL GASIFICATION; COKING COAL; GRAPHITE CRYSTALS; HELIUM DENSITY; INITIAL STAGES; MICRO-PORES; PHENOL RESINS; PORE STRUCTURE; PORE VOLUME; PORE VOLUMES; PYROLYSIS AND GASIFICATION; PYROLYSIS TEMPERATURES; SPECIFIC SURFACE AREAS; STACKING STRUCTURES;

COAL GAS;

EID: 45949093223     PISSN: 0386216X     EISSN: 13499203     Source Type: Journal    
DOI: 10.1252/kakoronbunshu.34.388     Document Type: Article

References (16)

1. Bhatia, S. K. and D. D. Perlmutter; "A Random Pore Model for Fluid-Solid Reactions: I. Isothermal, Kinetic Control," AIChE J., 26, 379-386 (1980)
2. Buiel, E. R., A. E. George and J. R. Dahn; "Model of micropore closure in hard carbon prepared from sucrose," Carbon, 37, 1399-1407 (1999)
3. Feng, B. and S. K. Bhatia; "Variation of the Pore Structure of Coal Chars during Gasification," Carbon, 41, 507-523 (2003)
4. Hatami. M., Toda, Y. and Yoshida, Y; "Chemical Structure and Properties of Heat Treated Coal in the Early State of Carbonization (XVI)-Study of Fine Pore Structure of Coals-(in Japanese)," J Fuel Soc. Jpn., 48, 235-240 (1969)
5. Kajitani, S., S. Hara and H. Matsuda; "Gasification Rate Analysis of Coal Char with a Pressurized Drop Tube Furnace,"' Fuel, 81, 539-546 (2002)
6. 2 adsorption," Carbon, 43, 241-251 (2005)
7. Kashiwaya, Y., H. Takamaru and K. Ishii; "Location of Micro-pore and the ratio of Open/Closed pore in the cokes (in Japanese)," Tetsu to Hagane, 89, 816-826 (2003)
8. Marsh, H. and Siemieniewska, T.; "'The Surface Areas of Coals as Evaluated from the Adsorption Isotherms of Carbon Dioxide using the Dubinin-Polanyi Equation," Fuel, 44, 355-367 (1965)
9. 2 Gasification Associated with Their Submicropores and Closed Pores," Energy and Fuels, 20, 353-358 (2006)
10. Nishimura, M. and H. Matsudaira; "Effect of coal packing density on coke pore structure and coke strength (in Japanese)," CAMP-ISIJ, 11, 709-712 (1998)
11. Oda, H., M. Takeuchi and C. Yokokawa; "Effect of air-oxidation on the pore-structure of coals and cokes or chars obtained from oxidized coals," Fuel, 60, 390-396(1981)
12. Ruike, M., N. Murase and K. Kaneko; "Characterization of pore structure in porous solids (in Japanese)," Hyomen, 37, 559-569 (1999)
13. Strezov, V., J. A. Lucas and T. F. Wall; "Effect of pressure on the swelling of density separated coal particles," Fuel, 84, 1238 (2005)
14. Tomeczek, J. and S. Gil; "Volatiles release and porosity evolution during high pressure coal pyrolysis," Fuel, 82, 285-292 (2003)
15. Yokoyama, T. and H. Matsudaira; "Estimation of closed pore volume of coke with mercury porosimetry (in Japanese)," CAMP-ISIJ, 11, 841 (1998)
16. Yu, J., J. Lucas, T. Wall, C. Sheng and G. Liu; "Modeling the development of char structure during the rapid heating of pulverized coal." Combustion and Flame, 136, 519-532 (2004)