| 摘要 |
<p>The invention aims to manufacture high-purity 1,3-propanediol through effectively eliminating by-products when the 1,3-propanediol is manufactured from glycerol. The task can be settled through 1,3-propanediol manufacturing process of the invention. The 1,3-propanediol manufacturing process comprises the following steps: a supercritical reaction step for causing glycerol to react with supercritical water and acid for generating acrolein; a hydration step for causing hydration of the acrolein which is generated in the supercritical reaction step and generating 3-hydroxy-propionaldehyde; a first eliminating step of eliminating allyl alcohol as a by-product from the 3-hydroxy-propionaldehyde which is generated in the hydration step; a hydrogenation step of performing hydrogenation on the 3-hydroxy-propionaldehyde after the first eliminating step for generating 1,3-propanediol; and a second eliminating step of eliminating 1,2-propanediol generated as a by-product from the 1,-propanediol generated in the hydrogenation step.</p> |
