The future of glycerol : new uses of a versatile raw by Mario Pagliaro; Michele Rossi; Royal Society of Chemistry

By Mario Pagliaro; Michele Rossi; Royal Society of Chemistry (Great Britain)

content material: Glycerol : homes and creation --
Aqueous part reforming --
Selective relief --
Halogenation --
Dehydration --
Etherification --
Esterification --
Selective oxidation --
ingredients for cement --
Sustainability of bioglycerol.

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The future of glycerol : new uses of a versatile raw material

Content material: Glycerol : houses and creation -- Aqueous section reforming -- Selective relief -- Halogenation -- Dehydration -- Etherification -- Esterification -- Selective oxidation -- ingredients for cement -- Sustainability of bioglycerol.

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A. Dumesic, Coupling of glycerol processing with Fischer–Tropsch synthesis for production of liquid fuels. , 2007, 9, 1073. 15. com. 16. htm. 1 Reduction of Glycerol The main product arising from the reduction of glycerol is 1,2-propanediol. 1,2-Propanediol is an important commodity chemical traditionally derived from propylene oxide. Bio-routes enable reduction to 1,3-propanediol, an important monomer which can be polymerized with terephthalic acid to produce polyester fibers known as Sorona (DuPont) or Corterra (Shell).

4). 4 Traditional and glycerol-based processes for the synthesis of epichlorohydrin. 5 Chapter 4 The glycerol-based process for epichlorohydrin. gaseous anhydrous hydrogen chloride in the presence of a low volatility organic acid catalyst. 4 The use of hydrogen chloride in the gaseous phase rather than in aqueous solution avoids the introduction of water, which has a negative effect on the reaction balance. The use of catalysts based on carboxylic acids having 3 to 10 carbon atoms, with boiling points above 120 1C, as an alternative to acetic acid compensates for the loss of catalyst due to the reaction temperature, which is close to the boiling point of acetic acid; the concentration of catalyst thus remains constant during the reaction.

4) is favorable. Formation of synthesis gas from glycerol is highly endothermic with an enthalpy change of about 80 kcal/ mol, but the conversion of synthesis gas to alkanes (along with CO2 and water) is highly exothermic (À110 kcal/mol). This means that the conversion of glycerol to alkanes by a combination of reforming and Fischer–Tropsch synthesis is mildly exothermic overall, with an enthalpy change and an overall gain in energy of about À30 kcal/mol of glycerol. 4 21 APR of polyols is thermodynamically favorable at significantly lower temperature than steam reforming of methane.

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