| 초록 |
Biomass liquefaction in sub- and supercritical fluids can be a promising alternative to conventional fast pyrolysis to produce biofuel. This is because the unique physicochemical properties of sub- and supercritical fluids including low viscosity, fast diffusion, zero surface tension, tunable physical properties, and high reactivity. These features of sub- and supercritical fluids can convert a variety of biomass (wood, macroalgae, sewage sludge, technical lignin) into high-calorific-value bio-oil with high stability, which is suitable to be directly used as a combustion fuel. Herein, liquefaction of various types of biomass in sub- and supercritical fluids is discussed in detail. The importance of liquid product separation after the liquefaction is covered. |
