| 摘要 |
<p>The present invention relates to a method to dispose plant fibers, in particular to a method to hydrolyze the plant fibers with concentrated sulfuric acid to prepare a main hydrolysate. The plant fibers are mixed with sulfuric acid in batches, and the main hydrolysate is obtained after hydrolysis. The batch mixing includes the following procedures: a portion of sulfuric acid is used to dissolve partial plant fibers, when the plant fibers can not be dissolved any more, concentrated sulfuric acid with the concentration more than 80 wt percent is successively added into the hydrolysate, then the plant fibers are added step by step, and then theprocedures as above is repeated until the hydrolysis is completed. The method utilizes concentrated sulfuric acid to prepare the main hydrolysate can hydrolyze the maximum fibers with the least sulfuric acid, thereby decreasing the recovery cost proportioned by the sugar obtained from hydrolysate.</p> |
