Distribution and Characteristics of Products from Pyrolysis of Sewage Sludge

Abstract:

Pyrolysis of sewage sludge for the fixed bed were investigated at different final temperatures (300-900 °C) to acquire distribution and characteristics of pyrolysis products. The mass balance was established on base of continuous on-line measurement of gases and integration of gas compounds to give a more accurate reflection on the yields distribution. It was observed that at low temperatures the liquid was the main product with maximum yield of 57 wt%(daf) at 500°C and the gas composition was mainly CO₂. Under the condition of a higher pyrolysis temperature (above 600°C), secondary reaction occurred among phase of solid, liquid and gas and generated more CO and H₂. From the perspective of energy utilization and accumulation of heavy metals, a lower temperature no more than 600°C is suitable for sewage sludge pyrolysis.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 2885-2893
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.2885
• Online since: August 2013
• Authors: Yu Sun, Bao Sheng Jin, Ya Ji Huang, Wu Zuo, Ji Qiang Jia, Yan Yan Wang
• Keywords: Fixed Bed, Pyrolysis, Sewage Sludge

References

[1] L. Shen, D. Zhang. Fuel, 2003, 82(4): 465-472.

[2] H.J. Parka, H.S. Heoa, Y. Parka, et al. Bioresource technology, 2010, 101(1): S83-S85.

[3] S. Skrypski-Mäntele, T.R. Bridle. Water Research, 1995, 29(4): 1033-1039.

DOI: 10.1016/0043-1354(94)00261-5

[4] Z Wang, Q Guo, X Liu, et al. Energy & fuels, 2007, 21(2): 957-962.

[5] H. Lutz, G.A. Romeiro, R.N. Damasceno, et al. Bioresource Technology, 2000, 74(2): 103-107.

[6] S.M. Al-Salem, P. Lettieri, J. Baeyens. Waste management, 2009, 29(10): 2625-2643.

DOI: 10.1016/j.wasman.2009.06.004

[7] D. Fytili, A. Zabaniotou. Renewable and Sustainable Energy Reviews, 2008, 12(1): 116-140.

[8] W Zuo , B.S. Jin, Y.J. Huang, et al. Bioresource Technology, 2013,127（1）：44-48.

[9] C. Casajus, J. Abrego, F. Marias, et al. Chemical Engineering Journal, 2009, 145(3): 412-419.

[10] M Inguanzo, A Domı́nguez, J.A Menéndez, et al. Journal of Analytical and Applied Pyrolysis, 2002, 63(1): 209-222.

[11] T Karayildirim, J Yanik, M Yuksel, et al. Fuel, 2006, 85(10): 1498-1508.

DOI: 10.1016/j.fuel.2005.12.002

[12] C Jindarom, V Meeyoo, T Rirksomboon, et al. Chemosphere, 2007, 67(8): 1477-1484.

DOI: 10.1016/j.chemosphere.2006.12.066

[13] V.A. Doshi, H.B. Vuthaluru, T. Bastow. Fuel processing technology, 2005, 86(8): 885-897.

[14] DCB Boocock. The low temperature pyrolysis characteristics of sewage sludges. In: Proceedings of International Conference on Research in Thermochemical Biomass Conversion. London: Elsevier Applied Science,1988. 497-508.

[15] H Schmidt , W Kaminsky. Chemosphere, 2001, 45(3): 285-290.

[16] M. Otero, F. Rozada, L.F. Calvo, et al. Dyes and Pigments, 2003, 57(1): 55-65.