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Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis |
Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI( ), Fahai CAO, Dingye FANG |
| School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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Abstract Based on the combination of the glycerol aqueous-phase reforming (APR) and catalytic hydrogenation of glycerol, a novel reaction system of liquid phase in situ hydrogenation of glycerol for the synthesis of 1,3-propanediol is proposed, in which hydrogen is produced from glycerol aqueous-phase reforming in the same reactor. In this new system, the glycerol is the raw material of the aqueous-phase reforming reaction; the hydrogen generated from the APR of glycerol can be quickly transformed to the in situ hydrogenation of glycerol to produce 1,3-propanediol, which can improve the selectivity of hydrogen for the APR process of glycerol. Moreover, thermodynamic calculation of the coupling processes was carried out, and standard molar enthalpies and equilibrium constants of foregoing reactions were obtained. The above calculation results indicate that the combination process is feasible for 1,3-propanediol synthesis.
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| Keywords
glycerol
aqueous-phase reforming
1,3-propanediol
in-situ reduction
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Corresponding Author(s):
LI Tao,Email:tli@ecust.edu.cn
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Issue Date: 05 March 2011
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