FR2434131A1 - Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiques - Google Patents
Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiquesInfo
- Publication number
- FR2434131A1 FR2434131A1 FR7805367A FR7805367A FR2434131A1 FR 2434131 A1 FR2434131 A1 FR 2434131A1 FR 7805367 A FR7805367 A FR 7805367A FR 7805367 A FR7805367 A FR 7805367A FR 2434131 A1 FR2434131 A1 FR 2434131A1
- Authority
- FR
- France
- Prior art keywords
- desalkylation
- water vapor
- aromatic hydrocarbons
- water
- dealkylation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
- C07C4/12—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene
- C07C4/14—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene splitting taking place at an aromatic-aliphatic bond
- C07C4/20—Hydrogen being formed in situ, e.g. from steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6567—Rhenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
- C07C2521/04—Alumina
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the alkali- or alkaline earth metals or beryllium
- C07C2523/04—Alkali metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- C07C2523/32—Manganese, technetium or rhenium
- C07C2523/36—Rhenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
- C07C2523/42—Platinum
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
- C07C2523/44—Palladium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
- C07C2523/46—Ruthenium, rhodium, osmium or iridium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
- C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
- C07C2523/56—Platinum group metals
- C07C2523/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tatalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- C07C2523/656—Manganese, technetium or rhenium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne un procédé de désalkylation à la vapeur d'eau des hydrocarbures alkylaromatiques, en présence d'un catalyseur. L'invention est caractérisée en ce que la réaction est conduite entre 300 et 600 degrés C, avec un rapport molaire eau/hydrocarbures compris entre 1 et 10, en présence d'un catalyseur constitué d'un support d'alumine et contenant en poids de 0,1 à 2 % d'au moins un métal du groupe VIII de numéro atomique égal ou supérieur à 44, de 0,05 à 2% de rhénium et de 0,01 à 5 % d'au moins un métal alcalin. Le procédé de l'invention s'applique plus particulièrement à la désalkylation en présence d'eau dune coupe issue d'un réformage catalytique ou d'une unité de production d'aromatiques.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7805367A FR2434131A1 (fr) | 1978-02-24 | 1978-02-24 | Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiques |
DE19792906389 DE2906389A1 (de) | 1978-02-24 | 1979-02-20 | Verfahren zur entalkylierung von aromatischen kohlenwasserstoffen mit wasserdampf |
SU792734660A SU1087071A3 (ru) | 1978-02-24 | 1979-02-21 | Способ получени бензола |
BE1/9283A BE874319A (fr) | 1978-02-24 | 1979-02-21 | Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiques |
NL7901426A NL7901426A (nl) | 1978-02-24 | 1979-02-22 | Werkwijze voor de dealkylering van aromatische kool- waterstoffen met waterdamp. |
GB7906513A GB2015028B (en) | 1978-02-24 | 1979-02-23 | Process for steam dealkylation of aromatic hydrocarbons |
JP2128879A JPS54122230A (en) | 1978-02-24 | 1979-02-23 | Dealkylation of aromatic hydrocarbons by steam |
US06/014,400 US4199437A (en) | 1978-02-24 | 1979-02-23 | Process for steam dealkylation of aromatic hydrocarbons |
IT20483/79A IT1112021B (it) | 1978-02-24 | 1979-02-23 | Procedimento di dealchilazione al vapor d'acqua di idrocarburi aromatici |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7805367A FR2434131A1 (fr) | 1978-02-24 | 1978-02-24 | Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2434131A1 true FR2434131A1 (fr) | 1980-03-21 |
FR2434131B1 FR2434131B1 (fr) | 1981-03-06 |
Family
ID=9205022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7805367A Granted FR2434131A1 (fr) | 1978-02-24 | 1978-02-24 | Procede de desalkylation a la vapeur d'eau d'hydrocarbures aromatiques |
Country Status (9)
Country | Link |
---|---|
US (1) | US4199437A (fr) |
JP (1) | JPS54122230A (fr) |
BE (1) | BE874319A (fr) |
DE (1) | DE2906389A1 (fr) |
FR (1) | FR2434131A1 (fr) |
GB (1) | GB2015028B (fr) |
IT (1) | IT1112021B (fr) |
NL (1) | NL7901426A (fr) |
SU (1) | SU1087071A3 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2442815A1 (fr) * | 1978-11-29 | 1980-06-27 | Inst Francais Du Petrole | Procede de regeneration d'un catalyseur de dealkylation a la vapeur d'eau d'hydrocarbures aromatiques |
FR2469204A1 (fr) * | 1979-11-12 | 1981-05-22 | Inst Francais Du Petrole | Nouveaux catalyseurs de dealkylation, a la vapeur d'eau, d'hydrocarbures aromatiques |
US4659686A (en) * | 1983-12-22 | 1987-04-21 | E. I. Du Pont De Nemours And Company | Method for treating carbon supports for hydrogenation catalysts |
US4587229A (en) * | 1984-10-22 | 1986-05-06 | Phillips Petroleum Company | Catalyst for the production of allyl acetate |
US6485978B1 (en) | 1999-08-05 | 2002-11-26 | 3M Innovative Properties Company | Method of using a chemical indicator |
US6756340B2 (en) * | 2002-04-08 | 2004-06-29 | Uop Llc | Dehydrogenation catalyst composition |
US7569508B2 (en) * | 2004-11-17 | 2009-08-04 | Headwaters Technology Innovation, Llc | Reforming nanocatalysts and method of making and using such catalysts |
US7205376B2 (en) * | 2004-05-04 | 2007-04-17 | General Electric Company | Processes for the production of cumene, polyetherimides, and polycarbonates |
WO2008135582A1 (fr) * | 2007-05-08 | 2008-11-13 | Basf Se | Catalyseurs à base d'iridium et de palladium destinés à la transformation d'hydrocarbures en présence de vapeur d'eau et notamment à la désalkylation à la vapeur d'hydrocarbures aromatiques à substitution d'alkyle |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR92077E (fr) * | 1963-05-30 | 1968-09-20 | Shell Int Research | Procédé de préparation d'hydrogène ou de mélanges de gaz contenant de l'hydrogène |
NL6616179A (fr) * | 1966-11-17 | 1968-05-20 | ||
US3436433A (en) * | 1967-04-21 | 1969-04-01 | Universal Oil Prod Co | Dealkylation of alkyl substituted aromatic hydrocarbons |
US3595932A (en) * | 1968-08-20 | 1971-07-27 | Gdal Nossonovich Maslyansky | Method of producing benzene and its low-molecular weight homologs |
GB1174879A (en) * | 1968-09-03 | 1969-12-17 | Vnii Neftekhimicheskikh Protez | A Method of Producing Benzene and Low Molecular Weight Homologs thereof |
US3551326A (en) * | 1969-06-09 | 1970-12-29 | Chevron Res | Production of high quality jet fuel |
US3617520A (en) * | 1969-06-25 | 1971-11-02 | Chevron Res | Sulfiding of low platinum content catalyst |
US3649706A (en) * | 1969-06-27 | 1972-03-14 | Universal Oil Prod Co | Steam dealkylation process |
US3649707A (en) * | 1969-06-27 | 1972-03-14 | Universal Oil Prod Co | Dual catalyst in steam dealkylation process |
US3650944A (en) * | 1969-07-07 | 1972-03-21 | Chevron Res | Reforming process startup |
US3670044A (en) * | 1969-07-18 | 1972-06-13 | Phillips Petroleum Co | Catalytic dehydrogenation process |
US3819507A (en) * | 1972-06-15 | 1974-06-25 | Sun Research Development | Dehydrocyclization of paraffins and catalyst therefor |
US4013734A (en) * | 1973-12-14 | 1977-03-22 | Exxon Research And Engineering Company | Novel catalyst and its use for steam hydroconversion and dealkylation processes |
FR2317962A1 (fr) * | 1975-07-15 | 1977-02-11 | Raffinage Cie Francaise | Nouveaux catalyseurs pour la dealkylation des hydrocarbures alkylaromatiques en presence de vapeur d'eau |
FR2414034A1 (fr) * | 1978-01-06 | 1979-08-03 | Inst Francais Du Petrole | Procede de dealkylation, a la vapeur d'eau, d'hydrocarbures aromatiques |
-
1978
- 1978-02-24 FR FR7805367A patent/FR2434131A1/fr active Granted
-
1979
- 1979-02-20 DE DE19792906389 patent/DE2906389A1/de active Granted
- 1979-02-21 SU SU792734660A patent/SU1087071A3/ru active
- 1979-02-21 BE BE1/9283A patent/BE874319A/fr not_active IP Right Cessation
- 1979-02-22 NL NL7901426A patent/NL7901426A/xx not_active Application Discontinuation
- 1979-02-23 GB GB7906513A patent/GB2015028B/en not_active Expired
- 1979-02-23 US US06/014,400 patent/US4199437A/en not_active Expired - Lifetime
- 1979-02-23 JP JP2128879A patent/JPS54122230A/ja active Granted
- 1979-02-23 IT IT20483/79A patent/IT1112021B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1112021B (it) | 1986-01-13 |
JPS6225128B2 (fr) | 1987-06-01 |
US4199437A (en) | 1980-04-22 |
IT7920483A0 (it) | 1979-02-23 |
SU1087071A3 (ru) | 1984-04-15 |
NL7901426A (nl) | 1979-08-28 |
FR2434131B1 (fr) | 1981-03-06 |
GB2015028B (en) | 1982-06-03 |
DE2906389C2 (fr) | 1987-09-10 |
BE874319A (fr) | 1979-08-21 |
GB2015028A (en) | 1979-09-05 |
DE2906389A1 (de) | 1979-09-06 |
JPS54122230A (en) | 1979-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |