2013•Biomass Chemical EngineeringRequires access
Effects of Catalyst CaO on Fast Pyrolysis of Pine for the Production of Bio-oils
Zang Yunhao
Open publisher page 2 citations
Abstract
The effects of CaO on fast pyrolysis of pine were investigated in a small bubbling fluidized bed reactor.The generated pyrolysis vapor was condensed by three-stage cooling: quench with coolant at the first stage,water cooling with shell-and-tube heat exchanger at the second stage,and ice bath cooling at the last stage.The liquids obtained from each stage were named bio-oil 1,bio-oil 2 and bio-oil 3,correspondingly.It was found that with the addition of CaO to pine,the water content in bio-oils increased,the heating value decreased,the pH increased,the content of ketones and hydrocarbons increased while phenols decreased.The bio-oils stability tests showed that phenols content increased(increased to 50 % when 30 % of CaO is added),esters decreased and the water content increased after the bio-oils stored for 30 days at room temperature.