Process for pretreatment of vegetable oils by heterogeneous catalysis of the esterification of fatty acids
US9234158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Dec 15, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00628
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a continuous process for pretreatment of an oil feedstock comprising at most 20% by weight of free fatty acids by esterification of free fatty acids in which a vertical liquid/liquid contactor containing an esterification catalyst in solid form is supplied in counter-current by an alcohol feedstock comprising at least 20% by weight of an alcohol and said oil feedstock, with said contactor being operated at a temperature of between 25 and 120° C., with said contactor performing the contact in liquid-liquid counter-current between a heavy phase and a light phase, with said heavy phase being able to be either an oil-rich phase or an alcohol-rich phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.