| 초록 |
Hydrothermal liquefaction (HTL) is potential technology for liquid fuels production and also can be converted to an aqueous phase, gas phase, and bio-char from Korean native kenaf (KNK). In this study, experiments were performed to maximize biocrude production derived from KNK using sodium hydroxide in 1 L batch reactor. A highest biocrude yield was 23% under optimal condition at 350 oC and 1 wt% NaOH for 30 min. In this work, higher alkali catalyst was not suitable to more produce biocrude because of yield reduction, while aqueous phase was increased. This biocrude has a high heating value (HHV) of 34.22 MJ/kg and 25 wt% of aqueous phase, 20 wt% of gas phase and 10 wt% of bio-char were obtained. The biocrude contained up to hundreds of different chemical components that may be classified according to functional groups. Typical compound classes in the biocrude were hydrocarbons, organic acid, esters, ketons and heterocyclics. |
