Method for improving stability of catalyst used for preparing furfuryl alcohol through gas-phase hydrogenation of furfural

The invention provides a method for improving the stability of a catalyst for preparing furfuryl alcohol through gas-phase hydrogenation of furfural. According to the method, the surface of the catalyst for preparing furfuryl alcohol through gas-phase hydrogenation of furfural is coated with a certain amount of carbon nitride. A treatment method of the catalyst provided by the invention comprises the following steps: (a) loading a carbon nitride precursor into a furfural hydrogenation catalyst; and (b) sequentially drying and roasting a mixture obtained in the step (a) to obtain the catalyst coated with carbon nitride. The method has the advantages that a catalyst treatment mode is simple, the catalyst for preparing furfuryl alcohol through gas-phase hydrogenation of furfural has universality, cost is low, and large-scale amplification application is easy. 本发明提供一种改善糠醛气相加氢制糠醇催化剂稳定性的方法，所述方法是指在糠醛气相加氢制糠醇催化剂表面涂覆一定量的氮化碳。本发明提供的催化剂处理方法包括以下步骤：(a)将氮化碳前驱体装载在糠醛加氢催化剂中；(b)将步骤(a)获得的混合物依次经过干燥和焙烧处理，获得涂覆有氮化碳的催化剂。本发明的优势是催化剂处理方式