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|Title:||Hydrothermal carbonization of sewage sludge for energy production with coal|
|Citation:||Parshetti, G.K., Liu, Z., Jain, A., Srinivasan, M.P., Balasubramanian, R. (2013). Hydrothermal carbonization of sewage sludge for energy production with coal. Fuel 111 : 201-210. ScholarBank@NUS Repository. https://doi.org/10.1016/j.fuel.2013.04.052|
|Abstract:||Hydrothermal carbonization using subcritical water (250 C, 8-10 MPa and 15 min reaction time) was investigated to recover solid carbonaceous fuel i.e. sludge char (HT-SL) from urban sewage sludge. The carbonaceous HT-SL had an energy-density of 15.82 MJ kg-1. For achieving maximum waste-to-energy conversion, the co-combustion of HT-SL with low rank Indonesian coal (LRIC) and hydrothermally upgraded LRIC (HT-LRIC) was investigated using a thermogravimetric analyzer (TGA) and the emission characteristics of gaseous pollutants were determined by using coupled Fourier transform infrared spectroscopy (FT-IR). To gain insights into the physico-chemical and microstructure properties, carbonaceous fuel were characterized by proximate, ultimate, field emission scanning electron microscopy, FT-IR, X-ray diffraction, Brunauer, Emmett and Teller and inductively coupled plasma optical emission spectrometry analysis. Conventional TGA and kinetic parameters such as activation energy of various LRIC, HT-LRIC and HT-SL blends were also determined. This fundamental study provides a basic insight into co-combustion of HT-SL with LRIC and HT-LRIC, which forms a scientific basis for the efficient utilization of sewage sludge as an energy source while minimizing greenhouse gas emissions. © 2013 Elsevier Ltd. All rights reserved.|
|Appears in Collections:||Staff Publications|
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