摘要 |
This invention relates to a commercially viable process for extracting oxygenates from a hydrocarbon stream, typically a fraction of the condensation product of a Fischer-Tropsch reaction, while preserving the olefin content of the condensation product. The oxygenate extraction process is a liquid-liquid extraction process that takes place in an extraction column using a mixture of methanol and water as the solvent, wherein an extract from the liquid-liquid extraction is sent to a solvent recovery column from which a tops product comprising methanol, olefins and paraffins is recycled to the extraction column, thereby enhancing the overall recovery of olefins and paraffins. |
申请人 |
SASOL TECHNOLOGY (PROPRIETAY) LIMITED;DE WET, JOHAN, PIETER;JANSEN, WILHELMINA;JACOBSON, PAUL |
发明人 |
DE WET, JOHAN, PIETER;JANSEN, WILHELMINA;JACOBSON, PAUL |