Hydrolysis
Hydrolysis (/haɪˈdrɒlɪsɪs/; from Ancient Greek hydro- 'water', and lysis 'to unbind') is a chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution, elimination, and solvation reactions in which water is the nucleophile.[1] In lignocellulosic biomass, the cellulose and hemicellulose breaks down into individual sugars, where hemicellulose is easier to hydrolyse than cellulose.[2] The result of hydrolysing hemicellulose and cellulose is sugars (glucose, xylose, mannose, and galactose) and organic acids (formic acid and acetic acid).[3]
Feedstock
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Process and technologies
Acid
Acid hydrolysis is a hydrolysis process in which a protic acid is used to catalyze the hydrolysis reaction.
Alkali
Alkaline hydrolysis refers to types of nucleophilic substitution reactions in which the attacking nucleophile is a hydroxide ion.
Salt
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Ionic liquids
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Sulphite salt
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Solvent
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Organosolv
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Product
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Technology providers
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Patents
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References
- ↑ Wikipedia, 2002: Hydrolysis 2002, Last access 2021. https://en.wikipedia.org/wiki/Hydrolysis
- ↑ P. Lenihan, A. Orozco, E. O’Neill, M.N.M. Ahmad, D.W. Rooney, G.M. Walker, 2010-01-15: Dilute acid hydrolysis of lignocellulosic biomass. Chemical Engineering Journal, Vol. 156, (2), 395–403. doi: https://doi.org/10.1016/j.cej.2009.10.061
- ↑ Katarzyna Świątek, Stephanie Gaag, Andreas Klier, Andrea Kruse, Jörg Sauer, David Steinbach, 2020-04-17: Acid Hydrolysis of Lignocellulosic Biomass: Sugars and Furfurals Formation. Catalysts, Vol. 10, (4), 437. doi: https://doi.org/10.3390/catal10040437