APPARATUS FOR HOMOGENEOUS MIXING AND CONTINUOUS INJECTING OF LIGNIN AND SOLVENT, LIGNIN DECOMPOSITION SYSTEM USING SUPERCRITICAL FLUID COMPRISING THE SAME, AND OPERATING METHOD THEREOF

摘要

The present invention provides an apparatus for feeding a raw material mixture to a liquefaction reactor, comprising: a raw material receiving unit for receiving a mixture of lignin and a solvent supplied as a raw material; a partition wall which can move while separating the raw material receiving unit from a fluid receiving unit; a cylinder including the fluid receiving unit capable of receiving a fluid that is capable of applying pressure to the partition wall; a stirring means, provided in the raw material receiving unit, for stirring the raw material; and a discharging unit, disposed in a portion of the raw material receiving unit, for discharging the raw material stirred by the stirring means. According to the present invention, a feeding apparatus for homogeneously mixing and continuously injecting the mixture of lignin and a solvent can mix a mixture homogeneously by means of a stirrer having horizontal or vertical blades, and maintain the mixture to be injected into a reaction unit at a post stage. In addition, it is possible to more effectively prevent separation between the lignin and a liquid by specifying a pipe in the discharging unit to a certain value. After the raw material and a fluid are separated by means of the partition wall, the fluid is injected into the top of the partition wall such that a pressure is applied to the mixture, thereby allowing the homogeneously mixed mixture to be continuously injected into the reaction unit for a post-stage process.