Production of biocrude-oil from swine manure by fast pyrolysis and analysis of its characteristics
2015
Jeong, Yeon Woo | Choi, Sang Kyu | Choi, Yeon Seok | Kim, Seock Joon
All around the world research is being conducted in the field of renewable energy due to the depletion of fossil fuels and the problem of global warming. Fast pyrolysis, an optimal technology for converting biomass to liquid fuel, enables lignocellulosic raw materials such as wood, switch grass and rice straw to be converted to biocrude-oil. Even though many studies on these materials have already been conducted, the high production costs and unstable supply thereof have frequently been pointed out as significant problems. Thus, this study considers the use of another feedstock to solve such disadvantages and to raise the recycling rate of organic wastes simultaneously. Swine manure was selected as an alternative feedstock due to the existence of a stable supply from the livestock farming industry. A bubbling-fluidized-bed reactor was used in the present study for fast pyrolysis. The yield and characteristics of biocrude-oil were investigated at various reaction temperatures. The optimum temperature for maximum biocruce-oil yield was found to be 600 °C with the highest yield of 18.48 wt% and HHV of 13.59 MJ/kg. Due to its low yield and high water content, swine manure is suggested to be blended with other types of biomass as a means of higher yield and quality of biocrude-oil.
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