Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 2011 |
---|---|
<mark>Journal</mark> | Green Chemistry |
Issue number | 5 |
Volume | 13 |
Number of pages | 7 |
Pages (from-to) | 1196-1202 |
Publication Status | Published |
<mark>Original language</mark> | English |
The feasibility of in situ extraction and transesterification of spent coffee ground oil into fatty acid methyl esters with supercritical methanol has been investigated in the temperature range 473-603 K, and in the pressure range 10.0-30.0 MPa. At 30.0 MPa and 603 K, a fatty acid methyl esters (FAME) yield of 84.9% was obtained. Carbon dioxide was added to methanol with the aim of reducing the operating temperature and pressure. It was demonstrated that at a reaction temperature of 573 K, pressure of 10.0 MPa and a CO(2)/MeOH molar ratio of 0.11, a FAME yield of 93.4% was obtained.