|
Korean Journal of Chemical Engineering, Vol.23, No.4, 576-580, 2006
Gasification characteristics of combustible wastes in a 5 ton/day fixed bed gasifier
The gasification characteristics of combustible wastes were determined in a 5 ton/day fixed bed gasifier (1.2 m I.D. and 2.8m high). The fixed bed gasifier consisted of air compressor, oxygen tank, MFC, fixed bed gasifier, cyclone, heat exchanger, solid/gas separator, water fluidized bed reactor and blower. To capture soot or unburned carbon from the gasification reaction, solid/gas separator and water fluidized bed were used. The experiments with 10-50 hours of operation were carried out to determine the effects of bed temperature, solid/oxygen ratio and oxidant on the gas composition, calorific value and carbon conversion. The calorific values of the produced gas decreased with an increase of bed temperature because combustion reaction happened more actively. The gas composition of partial oxidation of woodchip is CO: 34.4%, H2: 10.7%, CH4: 6.0%, CO2: 48.9% and that of RPF is CO: 33.9%, H2: 26.1%, CH4: 10.7%, CO2: 29.2%. The average calorific values of produced gas were about 1,933 kcal/Nm3, 2,863 kcal/Nm3, respectively. The maximum calorific values were 3,100 kcal/Nm3 at RPF/oxygen ratio: 7.
[References]
- Bridgwater AV, Fuel, 74, 631, 1995
- Dornburg V, Faaij APC, Biomass Bioenerg., 21(2), 91, 2001
- Heermann C, Pyrolysis & Gasification of waste: A worldwide technology & business review, 1st ed., Juniper Consultancy Services Ltd., UK, 2000
- Kim JH, Im HG, “Study of waste gasification characteristics with adiabatic equilibrium model,” Abstracts of Papers of ACS, 228, I&EC 21, 2004
- Kim JH, Process development of manufacturing synthetic gas and recycling raw material from combustible wastes by gasification, Industrial Waste Recycling R&D program, Ministry of Science and Technology, Korea, 2003
- Ko MK, Lee WY, Kim SB, Lee KW, Chun HS, Korean J. Chem. Eng., 18(6), 961, 2001
- Kurkela E, Stahlberg P, Laatikainen J, Simell P, Bioresour. Technol., 46, 37, 1993
- Lee WJ, Kim SD, Song BH, Korean J. Chem. Eng., 18(5), 640, 2001
- Lee SH, Choi YC, Lee JG, Kim JH, J. Korea Society of Waste management, 21, 465, 2004
- Min TJ, Yoshikawa K, Murakami K, Energy, 30(11-12), 2219, 2005
- Na JI, Park OJ, Kim YK, Lee JG, Kim JH, Appl. Energy, 75(3-4), 275, 2003
- Song BH, Jang YW, Kim SD, Kang SK, Korean J. Chem. Eng., 18(5), 770, 2001
- SVZ, SVZ Newsletter, special edition, Germany, 2000
- Yun Y, Ju JS, Korean J. Chem. Eng., 20(6), 1037, 2003
[Cited By]
- Kwak TH, Lee S, Park JW, Maken S, Yoo YD, Lee SH, Korean Journal of Chemical Engineering, 23(6), 954, 2006
- Xiao R, Shen L, Zhang M, Jin B, Xiong Y, Duan Y, Zhong Z, Zhou H, Chen X, Huang Y, Korean Journal of Chemical Engineering, 24(1), 175, 2007
- Yoon SJ, Choi YC, Lee SH, Lee JG, Korean Journal of Chemical Engineering, 24(3), 512, 2007
- Cha WS, Baek IH, Jang HT, Korean Journal of Chemical Engineering, 24(3), 532, 2007
- Lee SH, Son YI, Ko CB, Choi KB, Kim JH, Journal of the Korean Industrial and Engineering Chemistry, 20(4), 391, 2009
- Seo MW, Kim SD, Na JG, Lee SH, Korean Chemical Engineering Research, 47(6), 734, 2009
- Eom WH, Kim JH, Lee SH, Applied Chemistry for Engineering, 23(1), 23, 2012
- Gwak IS, Hwang JH, Lee SH, Applied Chemistry for Engineering, 27(2), 171, 2016
- Shin JH, Lee LS, Lee SH, Korean Chemical Engineering Research, 54(4), 501, 2016
- Lee SH, Park ST, Lee R, Hwang JH, Sohn JM, Korean Journal of Chemical Engineering, 33(12), 3523, 2016
- Gwak IS, Hwang JH, Sohn JM, Lee SH, Journal of Industrial and Engineering Chemistry, 47, 391, 2017
- Gwak IS, Hwang JH, Sohn JM, Lee SH, Journal of Industrial and Engineering Chemistry, 47, 391, 2017
- Kim JH, Kim GM, Lisandy KY, Jeon CH, Korean Journal of Chemical Engineering, 34(11), 2852, 2017
|