- 专利标题: Method for producing 1,2-propylene glycol using bio-based glycerol
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申请号: US12232982申请日: 2008-09-26
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公开(公告)号: US20090156866A1公开(公告)日: 2009-06-18
- 发明人: Fang Cui , Jing Chen , Chungu Xia , Haixiao Kang , Xinzhi Zhang , Jin Tong , Xuemei Li
- 申请人: Fang Cui , Jing Chen , Chungu Xia , Haixiao Kang , Xinzhi Zhang , Jin Tong , Xuemei Li
- 申请人地址: CN Lanzhou
- 专利权人: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCE
- 当前专利权人: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCE
- 当前专利权人地址: CN Lanzhou
- 优先权: CN200710305964.7 20071213
- 主分类号: C07C31/18
- IPC分类号: C07C31/18
摘要:
This invention disclosed a method for producing 1,2-propylene glycol from bio-based glycerol. In this method, a CuO—CeO2—SiO2 catalyst is filled into a fixed bed reactor, a glycerol solution is flowed into the reactor together with hydrogen gas in a manner of top feeding, and controlling the reaction temperature to be 170˜200° C., the reaction pressure to be 1.0˜5.0 MPa, so as to realize the production of 1,2-propylene glycol from the hydrogenation of glycerol. The catalyst used in this invention can sustain a high selectivity for the target product and a high conversion for glycerol for 500 hours.