| 초록 |
Fast pyrolysis of lignocellulosic biomass forms bio-oil as a major product. Although bio-oil is a liquid-phase material with much higher energy density than lignocellulosic biomass, it is not widely used as a fuel in industry because of its drawbacks such as chemical instability, high viscosity, and high acidity. Those problems are resulted from high oxygen content in bio-oil. In this study, hydrodeoxygenation (HDO) of guaiacol as a model compound for bio-oil was examined as a method to eliminate oxygen present in bio-oil. Effect of promoters (Ru, Co, W, and Pt) impregnated in Ni/Activated Charcoal catalyst was investigated on the guaiacol conversion and product distribution. The reactions were carried out in a continuous flow fixed-bed reactor at 50 bar and temperatures of 350 and 400 °C. The results showed that the Ni-promoters/AC catalysts promoted HDO of guaiacol, resulting in high guaiacol conversion up to100% and deoxygenation degree between 90 and 100. Influence of the promoters on product selectivity and yield was discussed. |
