Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received May 6, 2009
Accepted July 24, 2009

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Thermogravimetric characteristics and pyrolysis kinetics of Giheung Respia sewage sludge

Mohd Roslee Othman Young-Hun Park¹ Thanh An Ngo¹ Seung-Soo Kim^2† Jinsoo Kim^1† Kwang Seok Lee³

School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia ¹Department of Chemical Engineering and Green Energy Center, Kyung Hee University, Seocheon-dong Giheung-gu, Yongin, Gyeonggi-do 446-701, Korea ²Department of Chemical Engineering, Kangwon National University, 1 Joongang-ro, Samcheok, Gangwon-do 245-711, Korea ³PoongBake Industries, 703, SK Twin Tower B, 345-9, Kasan-dong, Geumcheon-gu, Seoul 153-023, Korea

sskim2008@kangwon.ac.kr

Korean Journal of Chemical Engineering, January 2010, 27(1), 163-167(5), 10.1007/s11814-009-0338-9

Download PDF

Abstract

Sewage sludge acquired from Giheung Respia treatment facility was characterized and converted into gas, bio-oil and char by pyrolysis. The rate of conversion as a function of temperature was obtained from differential thermogravimetric analysis (DTG) for different heating rates. The activation energy calculated from data selected conversions shows that the activation energy decreased with increasing conversion up to 10%, steadily increased from 10 to 70%, and substantially increased from 70 to 90%. Depending on the level of conversion, the values of activation energies varied between 181 and 659 kJ/mol. The gas product obtained in the experiment at 450 ℃, 20 min mainly included CO2 (30%), CO (23%) and CH4 (17%). The product yields of gas, oil and char were systematically studied by changing the pyrolysis temperature and residence time.

Keywords

Biomass Pyrolysis Sewage Sludge TGA Conversion

References

Lundin M, Olofsson M, Pettersson G, Zetterlund H, Resource Conservation and Recycling, 41, 255 (2004)
Minimi G, Di R, Zuccarello B, Lotito V, Spinosa L, DiPinto AC, Water Sci. Technol., 36, 211 (1997)
Malerius O, Werther J, Chem. Eng. J., 96(1-3), 197 (2003)
Khiari B, Marias F, Zagrouba F, Vaxelaire J, Desalination, 167(1-3), 39 (2004)
Choung YH, Cho KC, Choi WJ, Kim SG, Han YS, Oh KJ, Korean J. Chem. Eng., 24(4), 660 (2007)
Annual Book of ASTM Standards (1997)
Annual Book of ASTM Standards (1999)
Standard Methods. See also - http://www.standardmethods.org/
Park YH, Kim J, Kim SS, Park YK, Bioresource Technology, 100, 400 (2009)
Hanaoka T, Inoue S, Uno S, Ogi T, Minowa T, Biomass Bioenerg., 28(1), 69 (2005)
Parnaudeau V, Dignac MF, J. Anal. Appl. Pyr., 78, 140 (2007)
Demirbas A, Fuel, 76(5), 431 (1997)
Lapuerta M, Hernandez JJ, Rodriguez J, Biomass Bioenerg., 31(1), 13 (2007)
Caballero JA, Font R, Marcilla A, Conesa JA, J. Anal. Appl. Pyr., 40, 433 (1997)
Sinfelt JH, Rohrer JC, J. Phys. Chem., 66, 1559 (1962)
Yaman S, Energy Conv. Manag., 45(5), 651 (2004)
REED TB, GAUR S, Biomass Bioenerg., 7(1-6), 143 (1994)
Vamvuka D, Kakaras E, Kastanaki E, Grammelis P, Fuel, 82, 1949 (2003)
Meier D, Faix O, Bioresour. Technol., 68(1), 71 (1999)
Chen G, Andries J, Luo Z, Spliethoff H, Energy Conv. Manag., 44(11), 1875 (2003)