Method, container and uses for converting biomass materials into soluble substances by one-step

Abstract

The present invention discloses a method for converting biomass material into soluble substances by one-step, comprising: converting biomass materials into soluble substances by one-step by electrolyzing at a certain time under the condition of constant current using bipolar three-dimension-electrodes system, wherein bipolar three-dimension-electrodes system including an anode, a cathode, particle electrodes and electrolyte, and in electrolyzing process, the particle electrodes and the biomass materials being suspended in the electrolyte. The present invention also discloses a container for converting biomass materials into soluble substances by one-step, comprising: A tank which holds electrolyte at the interior thereof, wherein the side wall of the tank is provided with an opening, the opening is provided with a permeable membrane, and the opening also communicates with a discharge pipe; A pair of electrode plates which are immersed into the electrolyte by at least a part thereof, wherein the pair of electrode plates space from each other and connect to positive pole and negative pole of power supply respectively to form anode and cathode in energized state respectively; and, Particle electrodes which are in granular form and are suspended in the electrolyte. The present invention also discloses uses of soluble substances that are prepared by any one of the methods.

What is claimed is: 
     
         1 . A method for converting biomass materials into soluble substances by one-step, characterized by comprising:
 converting biomass materials into soluble substances by using a bipolar three-dimensional-electrodes system to electrolyzing the biomass materials at a certain time under the condition of constant current by one-step, wherein the bipolar three-dimension-electrodes system includes an anode, a cathode, particle electrodes and electrolyte, and in electrolyzing process, the particle electrodes and the biomass materials being suspended in the electrolyte.   
     
     
         2 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the constant current being 0.1˜0.9 A. 
     
     
         3 . The method for converting biomass materials into soluble substances by one-step of  claim 2 , characterized by, the constant current being 0.3˜0.7 A. 
     
     
         4 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, converting biomass materials into organic acids which are some kinds of soluble substances by using bipolar three-dimension-electrodes system to electrolyzing the biomass materials at 10˜190 minutes under the condition of constant current by one-step. 
     
     
         5 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the electrolyte containing NaCl or KCl with molarity and volume ratio of 20 mmol/L˜2 mol/L. 
     
     
         6 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the particle electrodes are activated carbon microparticles, the mass/volume ratio of the activated carbon microparticles in the electrolyte being 1%˜9%. 
     
     
         7 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the diameter of the activated carbon microparticle being 3˜5 mm. 
     
     
         8 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the biomass materials being lignin or corn stalks. 
     
     
         9 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, the mass/volume ratio of the biomass materials in the electrolyte being 2%˜20%. 
     
     
         10 . The method for converting biomass materials into soluble substances by one-step of  claim 1 , characterized by, both the anode and the cathode being graphite plate electrodes. 
     
     
         11 . A container for converting biomass materials into soluble substances by one-step, characterized by, comprising:
 A tank which holds electrolyte at the interior thereof, wherein the side wall of the tank is provided with an opening, the opening is provided with a permeable membrane, and the opening also communicates with a discharge pipe;   A pair of electrode plates which are immersed into the electrolyte by at least a part thereof, wherein the pair of electrode plates space from each other and connect to positive pole and negative pole of power supply respectively to form anode and cathode in energized state respectively; and,   Particle electrodes which are in granular form and are suspended in the electrolyte.   
     
     
         12 . The container for converting biomass materials into soluble substances by one-step of  claim 11 , characterized by, the upper portions of the pair of electrode plates being level with the upper portion of the tank. 
     
     
         13 . The container for converting biomass materials into soluble substances by one-step of  claim 11 , characterized by, the electrolyte containing NaCl or KCl with molarity and volume ratio of 20 mmol/L˜2 mol/L. 
     
     
         14 . The container for converting biomass materials into soluble substances by one-step of  claim 11 , characterized by, the particle electrodes being activated carbon microparticles, the mass/volume ratio of the activated carbon microparticles in the electrolyte being 1%˜9%. 
     
     
         15 . The container for converting biomass materials into soluble substances by one-step of  claim 11 , characterized by, the pair of electrode plates being graphite plate electrodes. 
     
     
         16 . The container for converting biomass materials into soluble substances by one-step of  claim 11 , characterized by, further comprising: air sparger which is disposed at the bottom of the tank, and is communicated with an intake pipe, to blow air to make the electrode particles to be suspended in the electrolyte. 
     
     
         17 . Uses of soluble substances which are obtained by the method in  claim 1 .