High speed hydrolysis of biomass using the suprecritical water and ethanol fermentation of decomposed materials.

为了将纤维素团转化为酒精发酵原料，在间歇式反应器中，在蒸气压力或水的作用下，在250~405ﾟC的温度范围内，用热压缩水对纤维素和坚硬木材金雀花进行水热分解。在290ﾟC的加热温度下，通过调节加热时间在30s的范围内，纤维素迅速溶解到水中，大约50%的纤维素可以糖化成葡萄糖。通过对水溶性组分的发酵试验，通过活性碳处理去除溶液中的呋喃，显著提高了发酵速度。消耗的己糖和生成的乙醇之间存在着良好的质量平衡，在金夸平的情况下，水解开始的温度低于纯纤维素糖。活性木质素首先被分解，然后是半纤维素，然后是纤维素，然后是纤维素，再被水解成水溶物(WS)，但稳定的木质素很难分解，并以土壤残留物(甲醇不溶)的形式存在。加热温度的升高导致MI的产率下降，但不会因为WS的二次分解而增加水溶份的产率，但通过优化加热时间，可以得到产率在20%以上或接近30%的WS。由于从木质素中分离出的木质素物种是以甲醇可溶的形式从木质素中分离出来的，所以木质素有利于发酵，并成功地用酵母生产了乙醇。

In order to convert ceIIulosic biolmass to raw materials for alcohol fermentation, cellulose and chinquapin, a hard wood.were hydrothermolyzed with hot compressed water in a batch reactor at temperatures between 250 and 405ﾟC under the vapor pressure or water.Cellulose was quickly solubilized to water, and about 50% of cellulose could be saccharified to glucose by adjusting the heating time in the range of 30s at the heating temperature of 290ﾟC.As a result of fermentation tests of water soluble fraction, the fermentation rate was remarkably improved by removing furfurals in the solution through an active carbon treatment, and further, good mass balance was confirmed between thc consumed hexose and formed ethanol.In the case of chinquapin, the hydrothennolysis started at lower temperature than pure ceIIulose. Active ligunin was first decomposed, and then hemicellulose followed by cellulose was followed by cellulose was hydrolyzed to water solubles (WS), although stable lignin was hard to decompose and remained as soil residue (methanol insoluble, Ml). Increasing the heating temperature led to the decrease in the yield of MI,but not to the increase in the yield of water soluble fraction because of the second decomposition of WS.However, the WS including over 20% of hexose was obtained in the yield or near 30% by optimizing the heating time. Since species from lignin were obtained as methanol solubles separately from WS,the WS were convenient for the fermentation and ethanol was successfully produced with yeast.