CA2356632A1 - Dehydrocyclization process with downstream dimethylbutane removal - Google Patents
Dehydrocyclization process with downstream dimethylbutane removal Download PDFInfo
- Publication number
- CA2356632A1 CA2356632A1 CA002356632A CA2356632A CA2356632A1 CA 2356632 A1 CA2356632 A1 CA 2356632A1 CA 002356632 A CA002356632 A CA 002356632A CA 2356632 A CA2356632 A CA 2356632A CA 2356632 A1 CA2356632 A1 CA 2356632A1
- Authority
- CA
- Canada
- Prior art keywords
- aromatics
- raffinate
- dehydrocyclization
- catalyst
- accordance
- 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
- 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
- C10G61/00—Treatment of naphtha by at least one reforming process and at least one process of refining in the absence of hydrogen
- C10G61/02—Treatment of naphtha by at least one reforming process and at least one process of refining in the absence of hydrogen plural serial stages only
-
- 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
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/085—Catalytic reforming characterised by the catalyst used containing platinum group metals or compounds thereof
-
- 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
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/095—Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- C10G61/00—Treatment of naphtha by at least one reforming process and at least one process of refining in the absence of hydrogen
- C10G61/02—Treatment of naphtha by at least one reforming process and at least one process of refining in the absence of hydrogen plural serial stages only
- C10G61/04—Treatment of naphtha by at least one reforming process and at least one process of refining in the absence of hydrogen plural serial stages only the refining step being an extraction
Abstract
In the present invention, dimethylbutanes are removed from the raffinate component of the feed to a dehydrocyclization process. Thus, according to a preferred embodiment, a process is provided for producing aromatics by the following steps: (a) contacting fresh paraffins rich feed hydrocarbons, containing 0.1 to 20.0 wt.% dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone, under dehydrocyclization reaction conditions, to convert paraffins to aromatics and obtain an aromati cs rich effluent; (b) separating aromatics from the effluent to obtain an aromatics lean raffinate; (c) removing dimethylbutanes from the raffinate to obtain a raffinate of reduced dimethylbutane content; and (d) recycling the raffinate of reduced dimethylbutane content to the reaction zone. Preferably , the dehydrocyclization catalyst used is a nonacidic, monofunctional catalyst . Platinum on L zeolite is a particularly preferred highly selective dehydrocyclization catalyst for use in the process.
Claims (10)
1. A process for dehydrocyclization of hydrocarbon which comprises:
(a) contacting fresh paraffins rich feed hydrocarbon containing 0.1 to 20.0 wt. % dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone under dehydrocyclization reaction conditions to convert paraffins to aromatics and obtain an aromatics rich effluent;
(b) separating aromatics from the effluent to obtain an aromatics lean raffinate;
(c) removing dimethylbutanes from the raffinate to obtain a raffinate of reduced dimethylbutane content; and (d) recycling the raffinate of reduced dimethylbutane content to the reaction zone.
(a) contacting fresh paraffins rich feed hydrocarbon containing 0.1 to 20.0 wt. % dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone under dehydrocyclization reaction conditions to convert paraffins to aromatics and obtain an aromatics rich effluent;
(b) separating aromatics from the effluent to obtain an aromatics lean raffinate;
(c) removing dimethylbutanes from the raffinate to obtain a raffinate of reduced dimethylbutane content; and (d) recycling the raffinate of reduced dimethylbutane content to the reaction zone.
2. A process in accordance with Claim 1 wherein the highly selective dehydrocyclization catalyst is a nonacidic catalyst.
3. A process in accordance with Claim 2 wherein the catalyst comprises a Group VIII metal on a unidimensional crystalline aluminosilicate.
4. A process in accordance with Claim 3 wherein the aluminosilicate is zeolite L, zeolite omega or mordenite.
5. A process in accordance with Claim 4 wherein the aluminosilicate is zeolite L and the Group VIII metal is platinum.
6. A process in accordance with Claim 1 wherein the aromatics are separate from the raffinate by solvent extraction, distillation, or molecular sieve extraction.
7. A process in accordance with Claim 6 wherein the aromatics are separated from the raffinate by solvent extraction.
8. A process for dehydrocyclization of hydrocarbon which comprises:
(a) contacting fresh paraffins rich feed hydrocarbon containing 0.1 to 20.0 wt. % dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone under dehydrocyclization reaction conditions to convert paraffins to aromatics and obtain an aromatics rich effluent;
(b) removing dimethylbutanes from the aromatics rich effluent to obtain a reduced dimethylbutane content;
(c) separating aromatics from the paraffins-aromatics mixture to obtain an aromatics lean raffinate; and (d) recycling the raffinate to the reaction zone.
(a) contacting fresh paraffins rich feed hydrocarbon containing 0.1 to 20.0 wt. % dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone under dehydrocyclization reaction conditions to convert paraffins to aromatics and obtain an aromatics rich effluent;
(b) removing dimethylbutanes from the aromatics rich effluent to obtain a reduced dimethylbutane content;
(c) separating aromatics from the paraffins-aromatics mixture to obtain an aromatics lean raffinate; and (d) recycling the raffinate to the reaction zone.
9. A process in accordance with Claim 8 wherein the highly selective dehydrocyclization catalyst is a nonacidic catalyst.
10. A process in accordance with Claim 9 wherein the catalyst comprises a Group VIII metal on zeolite L.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1998/026134 WO2000034417A1 (en) | 1998-12-09 | 1998-12-09 | Dehydrocyclization process with downstream dimethylbutane removal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2356632A1 true CA2356632A1 (en) | 2000-06-15 |
| CA2356632C CA2356632C (en) | 2010-07-20 |
Family
ID=22268450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2356632A Expired - Fee Related CA2356632C (en) | 1998-12-09 | 1998-12-09 | Dehydrocyclization process with downstream dimethylbutane removal |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1144550B1 (en) |
| JP (1) | JP2002531683A (en) |
| KR (1) | KR100601258B1 (en) |
| AT (1) | ATE356859T1 (en) |
| AU (1) | AU1810999A (en) |
| CA (1) | CA2356632C (en) |
| DE (1) | DE69837351T2 (en) |
| ES (1) | ES2281145T3 (en) |
| MX (1) | MXPA01005894A (en) |
| WO (1) | WO2000034417A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11149220B2 (en) | 2020-02-13 | 2021-10-19 | Saudi Arabian Oil Company | Process and system for hydrogenation, hydrocracking and catalytic conversion of aromatic complex bottoms |
| US11248173B2 (en) | 2020-02-13 | 2022-02-15 | Saudi Arabian Oil Company | Process and system for catalytic conversion of aromatic complex bottoms |
| US11268037B2 (en) | 2020-02-13 | 2022-03-08 | Saudi Arabian Oil Company | Process and system for hydrodearylation and hydrogenation of aromatic complex bottoms |
| US11279888B2 (en) | 2020-02-13 | 2022-03-22 | Saudi Arabian Oil Company | Process and system for hydrogenation of aromatic complex bottoms |
| US11591526B1 (en) | 2022-01-31 | 2023-02-28 | Saudi Arabian Oil Company | Methods of operating fluid catalytic cracking processes to increase coke production |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9266091B2 (en) | 2012-03-29 | 2016-02-23 | Uop Llc | Reforming catalysts with tuned acidity for maximum aromatics yield |
| US11834615B2 (en) | 2019-12-03 | 2023-12-05 | Saudi Arabian Oil Company | Staged catalytic reforming process |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070637A (en) * | 1959-08-03 | 1962-12-25 | Sun Oil Co | Preparation of benzene and toluene |
| US4650565A (en) * | 1982-09-29 | 1987-03-17 | Chevron Research Company | Dehydrocyclization process |
| US4897177A (en) * | 1988-03-23 | 1990-01-30 | Exxon Chemical Patents Inc. | Process for reforming a hydrocarbon fraction with a limited C9 + content |
| DE68917627T2 (en) * | 1988-03-31 | 1995-01-26 | Exxon Chemical Patents Inc | Process for reforming a hydrocarbon fraction free of dimethylbutane. |
| AU4779293A (en) * | 1992-07-24 | 1994-02-14 | Chevron Chemical Company | Reforming process for producing high-purity benzene |
| DE69415727T2 (en) * | 1993-06-15 | 1999-06-17 | Shell Int Research | Process for improving the use of hydrocarbons |
| US5877367A (en) * | 1996-12-17 | 1999-03-02 | Chevron Chemical Company | Dehydrocyclization process with downstream dimethylbutane removal |
-
1998
- 1998-12-09 JP JP2000586852A patent/JP2002531683A/en active Pending
- 1998-12-09 AT AT98962992T patent/ATE356859T1/en not_active IP Right Cessation
- 1998-12-09 ES ES98962992T patent/ES2281145T3/en not_active Expired - Lifetime
- 1998-12-09 KR KR1020017007235A patent/KR100601258B1/en not_active IP Right Cessation
- 1998-12-09 WO PCT/US1998/026134 patent/WO2000034417A1/en active IP Right Grant
- 1998-12-09 CA CA2356632A patent/CA2356632C/en not_active Expired - Fee Related
- 1998-12-09 EP EP98962992A patent/EP1144550B1/en not_active Expired - Lifetime
- 1998-12-09 DE DE69837351T patent/DE69837351T2/en not_active Expired - Lifetime
- 1998-12-09 MX MXPA01005894A patent/MXPA01005894A/en not_active IP Right Cessation
- 1998-12-09 AU AU18109/99A patent/AU1810999A/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11149220B2 (en) | 2020-02-13 | 2021-10-19 | Saudi Arabian Oil Company | Process and system for hydrogenation, hydrocracking and catalytic conversion of aromatic complex bottoms |
| US11248173B2 (en) | 2020-02-13 | 2022-02-15 | Saudi Arabian Oil Company | Process and system for catalytic conversion of aromatic complex bottoms |
| US11268037B2 (en) | 2020-02-13 | 2022-03-08 | Saudi Arabian Oil Company | Process and system for hydrodearylation and hydrogenation of aromatic complex bottoms |
| US11279888B2 (en) | 2020-02-13 | 2022-03-22 | Saudi Arabian Oil Company | Process and system for hydrogenation of aromatic complex bottoms |
| US11591526B1 (en) | 2022-01-31 | 2023-02-28 | Saudi Arabian Oil Company | Methods of operating fluid catalytic cracking processes to increase coke production |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1144550A1 (en) | 2001-10-17 |
| AU1810999A (en) | 2000-06-26 |
| JP2002531683A (en) | 2002-09-24 |
| CA2356632C (en) | 2010-07-20 |
| KR20010112229A (en) | 2001-12-20 |
| ES2281145T3 (en) | 2007-09-16 |
| KR100601258B1 (en) | 2006-07-14 |
| ATE356859T1 (en) | 2007-04-15 |
| DE69837351T2 (en) | 2008-04-10 |
| DE69837351D1 (en) | 2007-04-26 |
| MXPA01005894A (en) | 2002-04-24 |
| WO2000034417A1 (en) | 2000-06-15 |
| EP1144550B1 (en) | 2007-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20121210 |
|
| MKLA | Lapsed |
Effective date: 20121210 |