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1. (WO2018067194) DEALKYLATION AND TRANSALKYLATION OF HEAVY AROMATIC HYDROCARBONS
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Pub. No.: WO/2018/067194 International Application No.: PCT/US2017/017307
Publication Date: 12.04.2018 International Filing Date: 10.02.2017
IPC:
C07C 6/12 (2006.01) ,C07C 5/27 (2006.01) ,C07C 15/04 (2006.01) ,C07C 15/06 (2006.01) ,C07C 15/08 (2006.01) ,C07C 7/20 (2006.01) ,B01J 29/44 (2006.01) ,B01J 29/46 (2006.01) ,B01J 29/40 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
6
Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
08
by conversion at a saturated carbon-to-carbon bond
12
of exclusively hydrocarbons containing a six-membered aromatic ring
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
5
Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22
by isomerisation
27
Rearrangement of carbon atoms in the hydrocarbon skeleton
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
15
Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part
02
Monocyclic hydrocarbons
04
Benzene
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
15
Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part
02
Monocyclic hydrocarbons
06
Toluene
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
15
Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part
02
Monocyclic hydrocarbons
067
C8H10 hydrocarbons
08
Xylenes
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
20
Use of additives, e.g. for stabilisation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29
Catalysts comprising molecular sieves
04
having base-exchange properties, e.g. crystalline zeolites, pillared clays
06
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
40
of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
42
containing iron group metals, noble metals or copper
44
Noble metals
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29
Catalysts comprising molecular sieves
04
having base-exchange properties, e.g. crystalline zeolites, pillared clays
06
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
40
of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
42
containing iron group metals, noble metals or copper
46
Iron group metals or copper
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29
Catalysts comprising molecular sieves
04
having base-exchange properties, e.g. crystalline zeolites, pillared clays
06
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
40
of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
Applicants:
EXXONMOBIL CHEMICAL PATENTS INC. [US/US]; 5200 Bayway Drive Baytown, TX 77520, US
Inventors:
DETJEN, Todd, E.; US
ABICHANDANI, Jeevan, S.; US
Agent:
SULLIVAN, Kristian, R.; US
BAEHL, Stephen; US
CHEN, Siwen; US
ARECHEDERRA, Leandro; US
BELL, Catherine, L.; US
Priority Data:
62/403,75404.10.2016US
Title (EN) DEALKYLATION AND TRANSALKYLATION OF HEAVY AROMATIC HYDROCARBONS
(FR) DÉSALKYLATION ET TRANSALKYLATION D'HYDROCARBURES AROMATIQUES LOURDS
Abstract:
(EN) A process for producing xylene from C9+. aromatic hydrocarbons comprises contacting a first feedstock comprising C9+ aromatic hydrocarbons with a first catalyst in the presence of hydrogen under effective vapor phase dealkylation conditions to dealkylate part of the C9+. aromatic hydrocarbons and produce a first product comprising benzene and unreacted C9+. aromatic hydrocarbons. A second feedstock comprising toluene is contacted with a second catalyst in the presence of hydrogen under effective vapor phase toluene disproportionation conditions to disproportionate at least part of the toluene and produce a second product comprising para-xylene. A third feedstock comprising C9+ aromatic hydrocarbons and benzene and/or toluene is contacted with a third catalyst in the presence of hydrogen under effective liquid phase C9+. transalkylation conditions to transalkylate at least part of the C9+ aromatic hydrocarbons and produce a third product comprising xylenes.
(FR) La présente invention concerne un procédé de production de xylène à partir d'hydrocarbures aromatiques de C 9 + comprenant la mise en contact d'une première charge d'alimentation comprenant des hydrocarbures aromatiques de C 9 + avec un premier catalyseur en présence d'hydrogène dans des conditions de désalkylation en phase vapeur efficaces pour désalkyler une partie d'hydrocarbures aromatiques de C 9 + et produire un premier produit comprenant du benzène et d'hydrocarbures aromatiques de C 9 + n'ayant pas réagi. Une seconde charge d'alimentation comprenant du toluène est mise en contact avec un second catalyseur en présence d'hydrogène dans des conditions de dismutation de toluène en phase vapeur efficaces pour disproportionner au moins une partie du toluène et produire un second produit comprenant du para-xylène. Une troisième charge d'alimentation comprenant des hydrocarbures aromatiques de C 9 + et du benzène et/ou du toluène est mise en contact avec un troisième catalyseur en présence d'hydrogène dans une phase liquide efficace C 9 + . Des conditions de transalkylation pour transalkyler au moins une partie des hydrocarbures aromatiques C 9 + et produire un troisième produit comprenant des xylènes.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)