Improving the quality of fast pyrolysis oil by reduced pressure distillation
In the present study, reduced pressure distillation were performed to obtain distilled bio-oil from fast pyrolysis bio-oil. The experiments were completed at temperature 80℃ with a residual pressure of 15mmHg. The distilled bio-oil yields of 61wt％ from reduced pressure distillation of fast pyrolysis bio-oil were obtained. The oxygen contents of the distilled bio-oil is 9.2wt％ and the distilled bio-oil has lower content of oxygen than the fast pyrolysis bio-oil. For this reason, compared with the fast pyrolysis bio-oil, the distilled bio-oil has higher heating value, lower corrosivity and better stability. The heating value of distilled bio-oil is 34.2MJ/kg, which is about 2 times of that of fast pyrolysis bio-oil. It is found that the distilled bio-oil stored at 60℃ results in a weight loss of about 0.3％ for mild steel and the distilled bio-oils viscosity hardly increases during storage. These properties of distilled bio-oil make it more suitable for fuel oil use or as a source of chemicals than fast pyrolysis hip-oil.
bio-oil distillation pyrolysis
Zheng Ji-Lu
Department of Chemistry,Zhengzhou University,75＃,DaXue Street,Zhengzhou,Henan Province,450052,China
国际会议
广州
英文
1212-1215
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）