Styrene process with recycle from dehydrogenation zone

Details Styrene process with recycle from dehydrogenation zone Styrene process with recycle from dehydrogenation zone

2007-10-02

2007-10-02

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

C585S319000, C585S440000, C585S470000, C585S446000

Reexamination Certificate

active

11205657

ABSTRACT:
A styrene process is disclosed that uses a dehydrogenation reactor and a transalkylation reactor and in which a significant portion of the benzene, the inhibitors, or both, recovered from the dehydrogenation reactor passes to the transalkylation reactor. The process disclosed herein can also use an alkylation reactor and can increase the run length of the alkylation catalyst.

REFERENCES:
patent: 3409689 (1968-11-01), Ward
patent: 3525776 (1970-08-01), Berger
patent: 4252615 (1981-02-01), Watson
patent: 4417085 (1983-11-01), Watson et al.
patent: 4469558 (1984-09-01), Watson
patent: 4492675 (1985-01-01), Watson et al.
patent: 4628136 (1986-12-01), Sardina
patent: 5043500 (1991-08-01), Tagamolila
patent: 5869717 (1999-02-01), Frame et al.
patent: 6395943 (2002-05-01), Kurek et al.
James, Denis H., et al. StyreneUllmann's Encyclopedia of Industrial Chemistry, 5thEd., vol. A25, VCH Publishers, New York, USA, 1994 VCH Verlagsgesellschaft 3-527-20125-4/94 pp. 329-344.
Li, C.H., et al. StyreneEncyclopedia of Chemical Processing and Design, vol. 55, Marcel Dekker, Inc., New York, USA, 1996 ISBN: 0-8247-2606-5 pp. 197-217.
Winkler, R.E., et al. Inhibition of the Thermal Polymerization of Styrene by N-Phenyl-N'-Isopropyl-p-PhenylenediamineJournal of Polymer Science: Part A: Polymer Chemistry, vol. 26, John Wiley & Sons, Inc. 1988 pp. 2853-2958.
Lummus/UOP Classic SM™ Process: UOP, Des Plaines, IL 1997UOP 2699C-2 597AD4B.
Ethylbenzene/“Classic” Styrene Monomer ABB Lummus Global, 1515 Broad Street, Bloomfield, NJ, 07003-3096 USA, Mar. 29, 2001.

Affiliated with

Also associated with

Rating

Styrene process with recycle from dehydrogenation zone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Styrene process with recycle from dehydrogenation zone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Styrene process with recycle from dehydrogenation zone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3855747