Glycerol dehydroxylation in hydrogen on a Raney cobalt catalyst |
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Authors: | Yu A Korolev A A Greish L M Kozlova M V Kopyshev E F Litvin L M Kustov |
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Affiliation: | 1.Zelinsky Institute of Organic Chemistry,Russian Academy of Sciences,Moscow,Russia;2.OOO NNT,Moscow,Russia |
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Abstract: | Glycerol dehydroxylation on a Raney cobalt catalyst in hydrogen was studied. It was found that with an increase in temperature
from 140 to 200°C at a hydrogen pressure of 30 MPa, glycerol conversion increases from 14 to 97%. The glycerol is completely
converted in 20 h, and the yield of 1,2-propanediol is 40%. With an increase in H2 pressure from 3 to 8 MPa, the glycerol conversion increases from 34 to 95%, and the yield of 1,2-propanediol increases from
18 to 38%. The maximum yield of 1,2-propanediol is 44% at 200°C and a hydrogen pressure of 3 MPa. The glycerol dehydroxylation
in hydrogen on heterogeneous catalysts can be considered a promising method of glycerol conversion when glycerol is a byproduct
of biodiesel manufacture from vegetable oil and animal fats. |
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