| Literature DB >> 18417339 |
B Girisuta1, B Danon, R Manurung, L P B M Janssen, H J Heeres.
Abstract
A comprehensive experimental and modelling study on the acid-catalysed hydrolysis of the water hyacinth plant (Eichhornia crassipes) to optimise the yield of levulinic acid (LA) is reported (T=150-175 degrees CH2SO4 = 0.1-1M, water hyacinth intake=1-5wt%). At high acid concentrations (>0.5M), LA was the major organic acid whereas at low acid concentrations (<0.1M) and high initial intakes of water hyacinth, the formation of propionic acid instead of LA was favoured. The highest yield of LA was 53mol% (35wt%) based on the amount of C6-sugars in the water hyacinth (T=175 degrees CH2SO4 =1M , water hyacinth intake=1wt%). The LA yield as a function of the process conditions was modelled using a kinetic model originally developed for the acid-catalysed hydrolysis of cellulose and good agreement between the experimental and modelled data was obtained.Entities:
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Year: 2008 PMID： 18417339 DOI： 10.1016/j.biortech.2008.02.045
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642