GB1165399A - Process for Thermal Hydrodealkylation of an Alkyl Benzene - Google Patents
Process for Thermal Hydrodealkylation of an Alkyl BenzeneInfo
- Publication number
- GB1165399A GB1165399A GB53252/67A GB5325267A GB1165399A GB 1165399 A GB1165399 A GB 1165399A GB 53252/67 A GB53252/67 A GB 53252/67A GB 5325267 A GB5325267 A GB 5325267A GB 1165399 A GB1165399 A GB 1165399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- benzene
- effluent
- reaction zone
- nov
- alumina
- 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.)
- Expired
Links
- 150000004996 alkyl benzenes Chemical class 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 229910052570 clay Inorganic materials 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 238000005194 fractionation Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229920006389 polyphenyl polymer Polymers 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
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
- C07C4/16—Thermal processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/107—Atmospheric residues having a boiling point of at least about 538 °C
-
- 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
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1,165,399. Benzene. GULF RESEARCH & DEVELOPMENT CO. Ltd. 22 Nov., 1967 [22 Nov., 1966], No. 53252/67. Heading C5E. An alkylbenzene feedstock, particularly toluene, is hydrodealkylated at 538-982‹ C. in a primary reaction zone; an effluent comprising hydrogen, unreacted alkylbenzene, benzene and polyphenyls is recovered and separated, e.g. by fractionation; the polyphonyls are hydrocracked at 482-816‹ C. in an auxiliary reaction zone optionally containing a catalyst, e.g. natural clay, alumina, silica/alumina or sulphided nickel; and benzene is recovered from the effluent from both zones. The process is operated continuously, and the two effluents may be combined before the separation stage. Before the separation the combined effluents may be selectively hydrogenated to remove unsaturated aliphatic contaminants. The primary reaction zone may comprise two vessels, the effluent from the first being cooled before entering the second. Suitable operating conditions are given, and a detailed flow-sheet shows inter alia recycling, quenching and heatexchange arrangements.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59612566A | 1966-11-22 | 1966-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1165399A true GB1165399A (en) | 1969-09-24 |
Family
ID=24386075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB53252/67A Expired GB1165399A (en) | 1966-11-22 | 1967-11-22 | Process for Thermal Hydrodealkylation of an Alkyl Benzene |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE1668155C3 (en) |
| DK (1) | DK134714B (en) |
| ES (1) | ES347408A1 (en) |
| GB (1) | GB1165399A (en) |
| NL (1) | NL159645B (en) |
-
1967
- 1967-11-21 DE DE1668155A patent/DE1668155C3/en not_active Expired
- 1967-11-21 ES ES347408A patent/ES347408A1/en not_active Expired
- 1967-11-21 DK DK582767AA patent/DK134714B/en unknown
- 1967-11-22 GB GB53252/67A patent/GB1165399A/en not_active Expired
- 1967-11-22 NL NL6715867.A patent/NL159645B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE1668155C3 (en) | 1978-07-13 |
| DE1668155A1 (en) | 1971-04-15 |
| DE1668155B2 (en) | 1977-11-24 |
| DK134714C (en) | 1977-05-31 |
| ES347408A1 (en) | 1969-01-16 |
| NL6715867A (en) | 1968-05-24 |
| NL159645B (en) | 1979-03-15 |
| DK134714B (en) | 1977-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |