Characteristics of novel synthetic fuels using coal and sewage sludge impregnated bioliquid applying for a coal combustion system
| Autor: | Kwang Ho Song, Young Chan Choi, Gyu Seob Song, Joeng Geun Kim, Jun Su Park, Jong Won Choi, Byung Hwan Um, Se Joon Park, Ju-Hyoung Park, Young Joo Lee, Hueon Namkung |
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| Rok vydání: | 2017 |
| Předmět: |
Bituminous coal
Carbonization business.industry 020209 energy General Chemical Engineering geology.rock_type geology Energy Engineering and Power Technology Coal combustion products 02 engineering and technology Combustion Pulp and paper industry Fuel Technology Synthetic fuel 0202 electrical engineering electronic engineering information engineering Environmental science Heat of combustion Coal business Sludge |
| Zdroj: | Fuel Processing Technology. 167:153-161 |
| ISSN: | 0378-3820 |
| Popis: | The application of biomass resources and sewage sludge is currently the most important issue in the field of coal combustion systems. The main drawback for operating a boiler system is its varied firing characteristics and low heating value. In this study, we have developed new synthetic fuels, namely hybrid sludge fuel (HSF), using coal and sewage sludge impregnated bioliquid (molasses) and evaluated their properties by comparison with conventional fuels. To prepare the HSF, it was treated in a carbonization system at 250 °C. Depending on the van Krevelen diagram, the fuel quality of HSF was superior to that of raw bioliquid and sewage sludge. In addition, its fuel characteristic was similar to sub-bituminous and bituminous coal. Thermogravimetric analysis (TGA) indicated only a single-stage combustion pattern for HSF during non-isothermal heating. To clarify the unburned carbon (UBC) content, an ultimate analysis was conducted. The amount of UBC of the HSF was much more than that of sewage sludge, but less than that of coal. To investigate the surface hydrophobicity of HSF, Fourier transform infrared spectroscopy (FT-IR) analysis and a moisture re-adsorption test were carried out. The HSF possessed high hydrophobicity and presented a low moisture re-adsorption rate compared to conventional fuels. |
| Databáze: | OpenAIRE |
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