Preparing method from sugar to sugar alcohols by catalytic hydrogenation

摘要

PURPOSE: A manufacturing method of sugar alcohols is provided to continuously manufacture sugar alcohols with high yield through a repeated catalytic hydrogenation of sugars without regeneration of a catalyst. CONSTITUTION: A manufacturing method of sugar alcohols comprises a step of preparing sugar alcohols through a hydrogenation of sugars by using a supported catalyst. The supported catalyst is that ruthenium is supported into a single support or a mixture support selected from silica, alumina, and titania. The support has a coating consisting of nickel metal oxide. The hydrogenation is conducted at the reaction temperature 60-200°C and reaction pressure of 2-200 MPa. The comprised amount of the ruthenium is 0.2-15 weight% based on the total weight.