Olefinic hydrocarbon separation process

Details Olefinic hydrocarbon separation process Olefinic hydrocarbon separation process

1998-12-29

2000-08-22

Griffin, Walter D.

Mineral oils: processes and products

Fractionation

Adsorption

585802, 585809, 585820, 585822, 585826, 585827, 585829, C07C 713, C07C 700, C07C 712, C10G 2503, C10G 2512

Patent

active

061067024

ABSTRACT:
A molecular sieve guard bed used in an adsorptive process for separating olefinic hydrocarbons from paraffinic hydrocarbons is regenerated in a method which recovers valuable hydrocarbons from the guard bed void volumes. The method comprises first contacting the sieve with a purge stream, with the initial effluent of the guard bed passed into a raffinate column to recover the olefinic hydrocarbons in the void volume of the bed. The flow of the effluent of the guard bed is then switched to a different fractionation column.

REFERENCES:
patent: 3510423 (1970-05-01), Neuzil et al.
patent: 4006197 (1977-02-01), Bieser
patent: 4899016 (1990-02-01), Clark et al.
patent: 5276246 (1994-01-01), McCulloch et al.
patent: 5300715 (1994-04-01), Vora
Olex: A Process for Producing High Purity Olefins presented by J.A. Johnson, S. Raghuram and P.R. Pujado at the Aug. 1987 Summer national meeting of the American Institute of Chemical Engineers in Minneapolis, Minnesota.

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