Abstract
| Original language | Undefined |
|---|---|
| Pages (from-to) | 298-305 |
| Journal | Journal of supercritical fluids |
| Volume | 45 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- Vegetable oils
- Supercritical carbon dioxide
- Gas assisted mechanical expression
- IR-78888
- Hydraulic pressing
- Oil seeds
Cite this
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Gas assisted mechanical expression of oilseeds: Influence of process parameters on oil yield. / Willems, P.; Kuipers, N.J.M.; de Haan, A.B.
In: Journal of supercritical fluids, Vol. 45, No. 3, 2008, p. 298-305.Research output: Contribution to journal › Article › Academic
TY - JOUR
T1 - Gas assisted mechanical expression of oilseeds: Influence of process parameters on oil yield
AU - Willems, P.
AU - Kuipers, N.J.M.
AU - de Haan, A.B.
PY - 2008
Y1 - 2008
N2 - Gas assisted mechanical expression (GAME) utilizes the solubility of supercritical CO2 in vegetable oils to enhance the oil yields of mechanical expression of oil seeds. The general applicability of GAME was demonstrated with experiments with sesame, linseed, rapeseed, palm kernel and jatropha (hulled and dehulled) at 40 °C and varying mechanical pressures (10–70 MPa). Furthermore, the influence of moisture content, temperature and CO2-pressure on oil yield and rate of seedbed compaction was investigated. Yields obtained with GAME were up to 30 wt.% higher than conventional expression at the same effective mechanical pressure and temperature. GAME yields for hulled and dehulled seeds were very similar, despite the lower yields for hulled seeds in conventional expression. Up to 10 MPa CO2 yield increased significantly with CO2-pressure. The displacement of oil by dissolved CO2 was identified as the major cause of increased oil yields for both hulled and dehulled seeds. The entrainment of oil during CO2 depressurization is another major cause of increasing oil yield for hulled seeds.
AB - Gas assisted mechanical expression (GAME) utilizes the solubility of supercritical CO2 in vegetable oils to enhance the oil yields of mechanical expression of oil seeds. The general applicability of GAME was demonstrated with experiments with sesame, linseed, rapeseed, palm kernel and jatropha (hulled and dehulled) at 40 °C and varying mechanical pressures (10–70 MPa). Furthermore, the influence of moisture content, temperature and CO2-pressure on oil yield and rate of seedbed compaction was investigated. Yields obtained with GAME were up to 30 wt.% higher than conventional expression at the same effective mechanical pressure and temperature. GAME yields for hulled and dehulled seeds were very similar, despite the lower yields for hulled seeds in conventional expression. Up to 10 MPa CO2 yield increased significantly with CO2-pressure. The displacement of oil by dissolved CO2 was identified as the major cause of increased oil yields for both hulled and dehulled seeds. The entrainment of oil during CO2 depressurization is another major cause of increasing oil yield for hulled seeds.
KW - Vegetable oils
KW - Supercritical carbon dioxide
KW - Gas assisted mechanical expression
KW - IR-78888
KW - Hydraulic pressing
KW - Oil seeds
U2 - 10.1016/j.supflu.2008.01.010
DO - 10.1016/j.supflu.2008.01.010
M3 - Article
VL - 45
SP - 298
EP - 305
JO - Journal of supercritical fluids
JF - Journal of supercritical fluids
SN - 0896-8446
IS - 3
ER -