Aromatic extraction process using mixed polyalkylene glycol/glyc

Details Aromatic extraction process using mixed polyalkylene glycol/glyc Aromatic extraction process using mixed polyalkylene glycol/glyc

1991-06-10

1992-08-18

McFarlane, Anthony

Mineral oils: processes and products

Fractionation

Liquid extraction with solvents

208321, 208323, 208332, 208350, 208353, 208355, 208358, C10G 2116, C10G 2128

Patent

active

051396513

ABSTRACT:
Processes are provided for the recovery of aromatic hydrocarbons from feeds comprising mixtures of aromatic and non-aromatic hydrocarbons using a mixed aromatic extraction solvent at extraction temperature of less than 250.degree. F. The mixed extraction solvent is comprised of a solvent component containing low molecular weight polyalkylene glycols and a cosolvent component containing glycol ethers. Extractive distillation and steam distillation operations are employed to separate the hydrocarbon components from the rich solvent extract. Low temperature extraction followed by subsequent heating of the rich solvent stream results in improved solvent selectivity, reduced solvent to feed ratios, improved thermal stability and energy savings.

REFERENCES:
patent: 3714033 (1973-01-01), Somekh et al.
patent: 3788980 (1974-01-01), Kubek et al.
patent: 3981798 (1976-09-01), Ries et al.
patent: 4058454 (1977-11-01), Asselin
patent: 4273645 (1981-06-01), Audeh et al.
patent: 4379047 (1983-04-01), Fenton
patent: 4493765 (1985-01-01), Long et al.
patent: 4498980 (1985-02-01), Forte
patent: 4571295 (1986-02-01), Forte
patent: 4781820 (1988-11-01), Forte
patent: 5022981 (1991-06-01), Forte

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