378583 Fast Pyrolysis of Hemp in a Bubbling Fluidized Bed Reactor

Wednesday, November 19, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Seung-Soo Kim1, Jinsoo Kim2 and Hyung-Ho Choi1, (1)Chemical Engineering, Kangwon National University, Samcheok, South Korea, (2)Department of Chemical Engineering, Kyung Hee University, Yongin, South Korea

Biomass has been focused as one of the alternative energy sources since it is renewable, abundant worldwide, eco-friendly, and carbon neutral.  Hemp is a kind of biomass which can be easily cultivated with rapid growth rate. Also, a lot of hemp by-products are produced from textile industry. In this study, hemp has been studied to understand pyrolysis reaction characteristics and fast pyrolysis to evaluate the efficiency of bio-energy production. Pyrolysis kinetics of hemp by-products was studied using a micro tubing reactor. Simple pyrolysis mechanism was proposed and the reaction rate constants were calculated. Hemp by-products were fast pyrolyzed in a bubbling fluidized bed reactor at various reaction conditions. The effects of pyrolysis temperature between 440 C and 560 C on product yields were investigated. The yield of bio-oil was changed between 16.11 wt% and 39.44 wt%, and showed higher bio-oil yield with increasing reaction temperature. Aromatic compounds such as furfural, 1.2-benzenedial, 2.3-dihydro-benzofuran and phenol derivatives in bio-oil were major products by the analysis of GC-MS.

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