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1.
公开(公告)号:US20200009544A1
公开(公告)日:2020-01-09
申请号:US16489599
申请日:2017-03-27
发明人: Jianglin HU , Yunhai LIU , Yuan LI , Qingmei JIANG , Yanfang SONG , Yang YANG , Changsheng CHEN , Ke DING , Wei ZENG , Hengdong YANG , Kun WANG , Weiqi HUA
IPC分类号: B01J31/06 , C07C29/132 , B01J23/46 , B01J23/42 , B01J23/44 , B01J23/52 , B01J23/36 , B01J23/28 , B01J23/30 , B01J23/34 , B01J23/22 , B01J23/20 , B01J23/14
摘要: The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.
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公开(公告)号:US20200298198A1
公开(公告)日:2020-09-24
申请号:US16475839
申请日:2017-03-14
发明人: Wei ZENG , Changsheng CHEN , Yuan LI , Zaigang YANG , Hengdong YANG , Jianglin HU , Yunhai LIU , Ke DING , Yuanye BAO
IPC分类号: B01J19/00 , B01J19/10 , B01J23/755 , C07C29/156 , B01J23/72 , B01J37/04 , B01J37/06 , B01J37/00
摘要: Disclosed is a method for preparing β-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the β-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the β-phenylethanol to reach 99% or more.
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