Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By alkyl or aryl transfer between molecules – e.g.,...
Patent
1998-10-19
1999-12-28
Griffin, Walter D.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By alkyl or aryl transfer between molecules, e.g.,...
585470, 585474, C07C 522
Patent
active
060084243
ABSTRACT:
A process for the transalkylation of benzene, toluene and alkylaromatic hydrocarbons containing nine and ten carbon atoms form alkylaromatic hydrocarbons containing eight carbon atoms has been developed. The fixed bed reaction and adsorption zone contains a transalkylation catalyst and an adsorbent effective to selectively adsorb C.sub.9 and C.sub.10 alkylaromatic hydrocarbon reactants relative to the C.sub.8 alkylaromatic hydrocarbon products. Hydrogen and a desorbent are introduced to a first portion of the zone and an effluent containing at least one C.sub.8 alkylaromatic hydrocarbon product is withdrawn from a second portion of the zone. After a period of time, the desorbent is redirected to the second portion of the zone and concurrently the effluent containing at least one C.sub.8 alkylaromatic hydrocarbon product is withdrawn from the first portion of the zone. The alternation of introducing the desorbent to a first portion and then a second portion of the zone while concurrently withdrawing the effluent from the second portion and then the first portion of the zone is continued, thereby retaining the C.sub.9 and C.sub.10 alkylaromatic hydrocarbons within the zone until they are consumed.
REFERENCES:
patent: 2836633 (1958-05-01), Esmay et al.
patent: 3122494 (1964-02-01), Brown et al.
patent: 3211798 (1965-10-01), Burk, Jr. et al.
patent: 3997620 (1976-12-01), Neuzil
patent: 3998901 (1976-12-01), Neuzil et al.
patent: 4028428 (1977-06-01), Neuzil et al.
patent: 4079094 (1978-03-01), Rosback et al.
patent: 4255607 (1981-03-01), Miyake et al.
patent: 5877373 (1999-03-01), Zinnen et al.
Bricker Maureen L.
McGonegal Charles P.
Zinnen Herman A.
Dang Thuan D.
Griffin Walter D.
Maas Maryann
McBride Thomas K.
Molinaro Frank S.
LandOfFree
C.sub.8 alkylaromatic hydrocarbon production using reversible fl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with C.sub.8 alkylaromatic hydrocarbon production using reversible fl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and C.sub.8 alkylaromatic hydrocarbon production using reversible fl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2383569