Hydrothermal saccharification of cotton cellulose in dilute aqueous formic acid solution

Hydrothermal saccharification of cotton cellulose in dilute aqueous formic acid solution Cotton cellulose subjected to a dilute aqueous formic acid solution, at acid concentrations up to 1% (w/w), under hydrothermal conditions in a semi-batch reactor was converted into glucose and oligomers with lower degrees of polymerizations (DP). After heating at 250 °C for 60 min in 0.1% (w/w) aqueous formic acid solution, yields of glucose and total sugar with DP = 1 to 9 were 36.6 and 83.8% (100 × gC/gC of initial cotton sample), respectively, and 5-hydroxymethylfurfural was almost as low as 1%. The yields of glucose and oligomers were significantly improved by adding the acid. The reaction was represented by first-order reaction kinetics with regard to (1 – x) where x is the conversion based on the total sugar or glucose yield. At 250 °C, the differences in the rate constants (k − k water) were proportional to the square root of formic acid concentration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Hydrothermal saccharification of cotton cellulose in dilute aqueous formic acid solution

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Springer Netherlands
Copyright © 2011 by Springer Science+Business Media B.V.
Chemistry; Inorganic Chemistry ; Catalysis; Physical Chemistry
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