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1. WO2012058106 - PROCESS FOR THE PRODUCTION OF PURIFIED XYLENE ISOMERS

Publication Number WO/2012/058106
Publication Date 03.05.2012
International Application No. PCT/US2011/057226
International Filing Date 21.10.2011
IPC
C07C 7/12 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification, separation or stabilisation of hydrocarbons; Use of additives
12by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
C07C 7/14 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification, separation or stabilisation of hydrocarbons; Use of additives
14by crystallisation; Purification or separation of the crystals
C07C 7/144 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification, separation or stabilisation of hydrocarbons; Use of additives
144using membranes, e.g. selective permeation
C07C 5/22 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22by isomerisation
C07C 15/08 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
15Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part
02Monocyclic hydrocarbons
067C8H10 hydrocarbons
08Xylenes
CPC
C07C 15/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
15Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
02Monocyclic hydrocarbons
067C8H10 hydrocarbons
08Xylenes
C07C 5/2729
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22by isomerisation
27Rearrangement of carbon atoms in the hydrocarbon skeleton
2729Changing the branching point of an open chain or the point of substitution on a ring
C07C 7/005
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification; Separation; Use of additives
005Processes comprising at least two steps in series
C07C 7/13
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification; Separation; Use of additives
12by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
13by molecular-sieve technique
C07C 7/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification; Separation; Use of additives
14by crystallisation; Purification or separation of the crystals
Applicants
  • EXXONMOBIL CHEMICAL PATENTS INC. [US]/[US] (AllExceptUS)
  • PILLIOD, Dana, Lynn [US]/[US] (UsOnly)
  • OU, John, Di-yi [US]/[US] (UsOnly)
Inventors
  • PILLIOD, Dana, Lynn
  • OU, John, Di-yi
Agents
  • BELL, Catherine, L.
Priority Data
10192324.124.11.2010EP
61/408,08129.10.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR THE PRODUCTION OF PURIFIED XYLENE ISOMERS
(FR) PROCÉDÉ DE PRODUCTION D'ISOMÈRES DE XYLÈNE PURIFIÉS
Abstract
(EN)
The invention is directed to a process to produce paraxylene and orthoxylene, including reducing the amount of isomerate recycle from vapor phase xylenes isomerization by providing a parallel configuration of vapor phase and liquid phase isomerization units.
(FR)
L'invention concerne un procédé de production de paraxylène et d'orthoxylène, consistant à réduire la quantité d'isomérat à recycler provenant de l'isomérisation de xylènes en phase vapeur, par utilisation d'un agencement parallèle d'unités d'isomérisation en phase vapeur et en phase liquide.
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