摘要
通过对新旧催化剂的X射线荧光(XRF)、X射线衍射(XRD)及电子扫描显微镜(SEM)分析,探讨了糠醛液相加氢生产糠醇催化剂的失活原因。结果表明,催化剂失活的主要原因是糠醛加氢过程中生成的高聚物附着在催化剂的活性表面。对催化剂的活性表面高聚物的有效去除是催化剂再生的关键。该类催化剂主要活性成分为铜,常规燃烧方法会使催化剂活性损失殆尽。因此,有必要开发一种有效的催化剂再生方法。
The causes for deactivation of the catalysts for liquid-phase hydrogenation of furfural to furfurol were investigated by means of XRF, XRD and SEM. The results showed that adhesion of higher polymers formed during the hydrogenation process onto surface of the catalyst was the main cause for deactivation of the catalyst. Since the main active component is copper, removal of the polymers by traditional burning method might cause complete loss of the activity. Therefore, development of a new and effective regeneration method is a challenge facing the researchers in this field.
出处
《工业催化》
CAS
2004年第10期18-21,共4页
Industrial Catalysis
关键词
糠醛
液相加氢
糠醇
催化剂失活
furfural
liquid phase hydrogenation
furfurol
deactivation
