Abstract：
:Sub-critical or supercritical water was utilized for the degradation of glycerol in an environmentally benign reaction. The reaction was carried out in a batch reactor in the temperature range of 473-673 K, pressure of 30 MPa, and reaction time of 20-60 min. The effects of temperature and reaction time were observed. The degradation of glycerol produced acetaldehyde, acrolein, allyl alcohol and un-identified products. The highest yield of acrolein, acetaldehyde and allyl alcohol were 0.20, 7.17, 96.69 mol%, respectively. Glycerol conversion was 99.92 mol%. While acetaldehyde was formed only in sub-critical water and allyl alcohol only in supercritical water, acrolein was formed in both. The kinetics of the global reaction displayed a pseudo-first-order. The activation energy at subcritical water was 39.6 kJ/mol. Based on the results, this method could be an efficient method for glycerol degradation because the high conversion of glycerol was obtained.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Qadariyah L,Mahfud,Sumarno,Machmudah S,Wahyudiono,Sasaki M,Goto Mdoi
10.1016/j.biortech.2011.06.066subject
Has Abstractpub_date
2011-10-01 00:00:00pages
9267-71issue
19eissn
0960-8524issn
1873-2976pii
S0960-8524(11)00893-5journal_volume
102pub_type
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