The technique of deacidification of Fischer - Tol oil is to remove the fatty acid from the oil under the action of catalyst to improve the quality of the oil.
During the synthesis of Fetol, oxygen-containing compounds, such as fatty alcohols and fatty acids, are inevitably produced. Fatty acids, in particular, not only affect the quality of downstream products, but also corrode equipment, It not only increases the cost of investment, but also hinders the application of Fischer Troph oil in chemical industry. At present, most of The Fischer trophier oil is used as fuel oil, which wastes resources and does not get good economic benefit.
At present, the deacidification of Fischer troph oil is usually done by alkali washing or carbonate solution washing, but a lot of waste water will be produced and the treatment cost is high. There are also some selective hydrodeacidification methods, but it will inevitably lead to the loss of olefins with good added value.
1， Adaptable raw material
Fetto synthetic oil
2， Physicochemical properties of catalysts
Item | Result |
Appearance | White - gray stripe |
Diameter，mm | 2.0-2.5 |
Bulk density，kg/L | 0.6-0.7 |
Intensity，N/cm | ≥30 |
3， Proccess conditions
Item | Deacidification |
Reaction temperature，℃ | 300-350 |
Reaction pressure，MPa | Atmospheric pressure |
Volume per hour SV，h-1 | 0.7 |
4 ，Technical flow diagram
5 ，Process characteristics
Adopt fixed bed technology, relative to the current alkaline washing process of deacidification, the process is simple, no solid waste,no waste water, environmental friendly; if the esterification method was used for deacidification, then no alkene loss, the alkene properties do not change, catalyst one - way life longer, no frequent regeneration, operation simple and cost low.