Increasing catalyst life and improving product linearity in the

Details Increasing catalyst life and improving product linearity in the Increasing catalyst life and improving product linearity in the

1992-07-27

1993-09-14

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585324, 585464, 585804, C07C 266

Patent

active

052450945

ABSTRACT:
It has been found that the aromatic byproducts normally formed in the dehydrogenation of normal paraffins to linear monoolefins are detrimental in the usual processes of aromatic alkylation using the dehydrogenation product mixture as an alkylation feedstock. In particular, when solids are used as the alkylation catalysts with recycle of the unreacted feedstock to the dehydrogenation reactor the aromatic byproducts increase to a level where they exert a significant decrease in the stability of the alkylation catalyst. When the aromatic byproducts are removed in whole or in part alkylation may be performed at a substantially lower temperature, which affords alkylated aromatics whose alkyl portion has greater linearity than that observed at a higher alkylation temperature.

REFERENCES:
patent: 3484498 (1969-12-01), Berg
patent: 3494970 (1970-02-01), Pharis
patent: 3525776 (1970-08-01), Berger
patent: 4523048 (1985-06-01), Vora
patent: 4774377 (1988-09-01), Barger et al.
patent: 5012021 (1991-04-01), Vora et al.
R. A. Meyers, "Handbook of Petroleum Refining Processes", McGraw-Hill Book Company (1986), 4-36 to 4-38 and 1-39 to 1-41.
Ullman's Encyclopedia of Industrial Chemistry, 5th Ed., V.A. 13, Verlagsgesellschaft mbH (1989) pp. 234, 242-243 and pp. 259-260.
Kirk-Othmer Encyclopedia of Chemical Technology, 3rd Ed., V. 16, J. Wiley & Sons, (1981) p. 492.
"Encyclopedia of Chemical Processing and Design", J. J. McKetta, Editor, V. 14 M. Dekker, Inc. (1982), pp. 276-289.

Affiliated with

Also associated with

Rating

Increasing catalyst life and improving product linearity in the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Increasing catalyst life and improving product linearity in the , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increasing catalyst life and improving product linearity in the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2028645