Research on Saccharification of Wood by Dilute Sulfuric Acid

Part I. An Experiment on the Saccharification of Wood aiming the Industrial Production

Abstract

The authors intened to put on record an industrial large scale experiment of the saccha-rification of wood. A 200m³ digester of a sulfite rayon pulp mill was utilized as a percolator. The woods used as raw materials were Japanese red pine and cedar. (See Table 1 and 2. General method of Scholler-Tornesch process was modified to comform to the working condition of the digester. Temparature; pressure, time of reaction, and the properties of the sugar solution of each percolation, etc. are shown in Table 3 and 4. Sugar solution obtained was held in two 200m³ reclaiming tanks and tested. See Table 5. The result of this analysis showed that the yield of reducing sugar was more than 30 percent.