[12] Patent
[11] Patent No.:GC0007576  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126009
Date of the Decision to Grant the Patent:15/Apr/2018

[21] Application No.:GCC/P/2007/20957

[22] Filing Date:18/7/2007

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventor: Kevin J. Schwint

[73] Owner: Lummus Technology Inc., 1515 Broad Street, New Jersey 07003, Bloomfield, USA

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C




Int. Cl.: B01D 3/00; C07C 2/58, 2/66 (2006.01)

[56] Cited Documents:

-US 20040254412 A1 (Stephen Pohl ) 16 December 2004
-US 6252126 B1 (David Netzer) 21 June 2001
Examiner: Eng. Sattam M.AlMutairi

[57] Abstract: The invention relates to a process for the production of alkylated aromatic compounds comprising introducing olefin and aromatic compounds into at least first and second vertically spaced catalytic reaction zones in an alkylation unit under alkylation reaction conditions to provide an alkylated product, wherein the second catalytic reaction zone is positioned above the first catalytic reaction zone; wherein aromatic compound from each of the at least first and second catalytic reaction zones are contacted with a cooling means for re-condensing at least a portion of the aromatic compounds vaporized from the exothermic heat of reaction of the alkylation process; and wherein the olefin is introduced into the at least first and second catalytic reaction zones via respective first and second olefin feed streams at respective olefin feed rates such as to maintain olefin partial pressures at inlets to at least first and second catalytic reaction zones which vary by less than about ten percent. The invention additionally relates to an apparatus for practicing the alkylation process of the invention.
No. of claims: 4     No. of figures: 2


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