Catalytic hydrogenolysis of saccharides. II: Formation of glycerol

G. van Ling, J.C. Vlugter

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Abstract

The selectivity of the formation of glycerol from saccharides and hexitols by catalytic hydrogenolysis is determined by a number of reaction variables. Evaluation of the results of variations in operating conditions was effected by the use of the parameters: cleavage selectivity, hydrogenation selectivity, and cleavage percentage. There were strong indications that the cleavage selectivity was controlled by the molecular structure of the saccharide used, being considerably higher for a fructofuranose structure than for a pyranose one. The main reactions were cracking, isomerisation, acid formation, hydrogenation, dehydrogenation, and dehydration. Of these, cracking and hydrogenation reactions had the greatest influence on the glycerol yield. The choice of the catalyst is difficult, because of the conflicting demands for maximum hydrogenation selectivity and maximum cleavage percentage.
Original languageEnglish
Pages (from-to)43-45
JournalJournal of Applied Chemistry
Volume19
Issue number2
DOIs
Publication statusPublished - 1969
Externally publishedYes

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Hydrogenolysis
Glycerol
Hydrogenation
Dehydrogenation
Isomerization
Dehydration
Molecular structure
Catalysts
Acids

Keywords

  • IR-70694

Cite this

van Ling, G. ; Vlugter, J.C. / Catalytic hydrogenolysis of saccharides. II: Formation of glycerol. In: Journal of Applied Chemistry. 1969 ; Vol. 19, No. 2. pp. 43-45.
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Catalytic hydrogenolysis of saccharides. II: Formation of glycerol. / van Ling, G.; Vlugter, J.C.

In: Journal of Applied Chemistry, Vol. 19, No. 2, 1969, p. 43-45.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Catalytic hydrogenolysis of saccharides. II: Formation of glycerol

AU - van Ling, G.

AU - Vlugter, J.C.

PY - 1969

Y1 - 1969

N2 - The selectivity of the formation of glycerol from saccharides and hexitols by catalytic hydrogenolysis is determined by a number of reaction variables. Evaluation of the results of variations in operating conditions was effected by the use of the parameters: cleavage selectivity, hydrogenation selectivity, and cleavage percentage. There were strong indications that the cleavage selectivity was controlled by the molecular structure of the saccharide used, being considerably higher for a fructofuranose structure than for a pyranose one. The main reactions were cracking, isomerisation, acid formation, hydrogenation, dehydrogenation, and dehydration. Of these, cracking and hydrogenation reactions had the greatest influence on the glycerol yield. The choice of the catalyst is difficult, because of the conflicting demands for maximum hydrogenation selectivity and maximum cleavage percentage.

AB - The selectivity of the formation of glycerol from saccharides and hexitols by catalytic hydrogenolysis is determined by a number of reaction variables. Evaluation of the results of variations in operating conditions was effected by the use of the parameters: cleavage selectivity, hydrogenation selectivity, and cleavage percentage. There were strong indications that the cleavage selectivity was controlled by the molecular structure of the saccharide used, being considerably higher for a fructofuranose structure than for a pyranose one. The main reactions were cracking, isomerisation, acid formation, hydrogenation, dehydrogenation, and dehydration. Of these, cracking and hydrogenation reactions had the greatest influence on the glycerol yield. The choice of the catalyst is difficult, because of the conflicting demands for maximum hydrogenation selectivity and maximum cleavage percentage.

KW - IR-70694

U2 - 10.1002/jctb.5010190203

DO - 10.1002/jctb.5010190203

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EP - 45

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