Research on characteristic of biomass pyrolysis oils and emulsion oil

To widely utilize bio-oils as fuel, fast pyrolysis for the production of biomass oils from typical biomass feedstocks such as birch chip, corn straw and rice husk was implemented by adopting a bubbling fluidized bed with discontinuous feed, and then biomass oils and the emulsion oil mixed from bio-oil and diesel oil were analyzed. Results indicate that the bio-oil production efficiency of wood is higher than that of herbaceous species, the heating value of biomass oils is 16-18 MJ/kg. The oils are multicomponent mixtures comprising various groups of organic compounds, in which acids, phenolics, furans, alcoholic aldehydes and hydrocarbons are the main components. Considering that it is difficult to utilize bio-oils directly, the emulsion oil proportions and physical chemistry characteristics were studied for emulsion oil production. The result shows that properties of emulsion oil are more stable than those of bio-oil and diesel oil, and the emulsion method is simple and feasible.