Process including extractive distillation and/or dehydrogenation

Details Process including extractive distillation and/or dehydrogenation Process including extractive distillation and/or dehydrogenation

1996-09-26

1999-03-02

Caldarola, Glenn A.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

585441, 585806, 585808, 585819, 585833, 585857, 585862, 585860, 585863, 585868, 585864, 585866, 585435, 585440, C07C 708, C07C 710

Patent

active

058773851

ABSTRACT:
Disclosed is a process for recovering styrene from a feedstock containing at least styrene, ethylbenzene, and one or more aromatic or non-aromatic hydrocarbon compounds which includes separating said feedstock into a first stream relatively more concentrated in styrene than said feedstock and a second stream relatively more concentrated in ethylbenzene than said feedstock, recovering styrene from said first stream to produce a styrene product stream, dehydrogenating the ethylbenzene of said second stream to produce additional styrene, and recovering said additional styrene. The feedstock may be separated into said first and second streams by a process selected from the class consisting of extractive distillation, azeotropic distillation, distillation, liquid-liquid extraction, chemical complex formation, membrane separation, and combinations thereof, and the additional styrene may be recovered by recycling it into said feedstock.

REFERENCES:
patent: 2380019 (1945-07-01), Bloomer
patent: 2385235 (1945-09-01), Schneider
patent: 2467197 (1949-04-01), Engel
patent: 2831039 (1958-04-01), Nevitt
patent: 3018228 (1962-01-01), Cornell
patent: 3684665 (1972-08-01), Abe et al.
patent: 3763015 (1973-10-01), Morimoto et al.
patent: 3953300 (1976-04-01), Ginnasi et al.
patent: 5196632 (1993-03-01), Larsen et al.
SRI Report #33, section 8, pp. 109-128, "Recovery Styrene from Pyrolysis Gasoline", Mar. 1973.
Handbook of Chemistry and Physics; David R. Lide; 75th edition, 1995.

Affiliated with

Also associated with

Rating

Process including extractive distillation and/or dehydrogenation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process including extractive distillation and/or dehydrogenation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process including extractive distillation and/or dehydrogenation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-424513