Mineral oils: processes and products – Fractionation – Liquid extraction with solvents
Patent
1979-11-14
1981-05-12
Hearn, Brian E.
Mineral oils: processes and products
Fractionation
Liquid extraction with solvents
208324, 585811, 585835, 585839, C07C 710, C10G 2102
Patent
active
042670349
ABSTRACT:
A method for separating olefins from paraffins in which a mixture of olefin and paraffin is contacted with a dimethyl sulfoxide (DMSO) extractant stream in the liquid phase thereby dissolving olefins in the DMSO and permitting separation of a paraffin stream. The DMSO containing dissolved olefin is then contacted with water and a phase separation is effected between olefin and a mixture of DMSO and water. At least a portion of the DMSO and water mixture can be fractionated to produce a dried DMSO product which can be recycled as a portion of the extractant into contact with the mixture of olefin and paraffin.
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"Hydrocarbon Processing", Nov. 1976, pp. 237 and 238.
"Hydrocarbon Processing", Aug. 1976, pp. 127 and 128.
"Chem. Eng.", Jan. 31, 1966, pp. 54 and 56.
Hearn Brian E.
Phillips Petroleum Company
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