381410 A Comparision of Biocrude-Oil Characteristics from Coffee Ground and Sawdust

Tuesday, November 18, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Yeon Woo Jeong1, Yeon Seok Choi2, Sang Kyu Choi2, Seock Joon Kim2 and Ramesh Soysa1, (1)Korea University of Science and Technology, Daejeon, South Korea, (2)Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials, Daejeon, South Korea

Biomass conversion to biocrude-oil has been extensively studied worldwide as a renewable energy technology and an answer to global warming from fossil fuel, since it has little carbon emission with respect to fossil fuels. Biocrude-oil also has logistical advantages such as storage and convenience of transport than other renewable sources of energy. Fast Pyrolysis Biocrude-oil (FPBO) is an effective technology used in producing biocrude-oil but production costs and unstable supply of feedstock are the main drawbacks. Even though many studies have been done to minimize these problems, there are little studies done on abundantly found coffee ground based biocrude-oil. This study focuses on biocrude-oil products from coffee ground in comparison with sawdust. The characteristics of biocrude-oil production by coffee ground are compared with biocrude-oil from sawdust in a bench scale bubbling-fluidized-bed reactor for fast pyrolysis. Product yields and oil characteristics such as higher heating value, water content, viscosity, pH, density, ash, solid residue and functional group composition were also investigated at various reaction temperatures ranging from 400°C to 600°C.

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