Method for preparing chemical products from xylose through direct hydrothermal catalytic hydrogenation

The invention provides a method for preparing chemical products from xylose through direct hydrothermal catalytic hydrogenation. The method comprises steps as follows: xylose and water are added to areactor, hydrogenation hydrogenolysis is performed for 30-360 min under 423-573 K under the action of a catalyst with hydrogenation hydrogenolysis activity, and the chemical products are obtained. With adoption of the method for preparing the chemical products from xylose through direct hydrothermal catalytic hydrogenation, the chemical products such as diol and the like with high additional values can be prepared, and besides, with application of xylose as an available renewable biomass new energy source, efficient biological immobilization and chemical conversion of CO2 can be realized. 本发明提供种由木糖直接水热催化加氢制备化学品的方法，包括步骤：在反应器中，加入木糖与水，在具有加氢氢解活性的催化剂作用下，于423～573K进行加氢氢解反应30～360min，得到化学品。本发明由木糖直接水热加氢制备化学品的方法可制备出二元醇等高附加值的化学品，而且由于利用了木糖这种易于获取的可再生生物质新能源，能实现CO的高效生物固定和化学转化。