GB899281A - Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture - Google Patents
Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixtureInfo
- Publication number
- GB899281A GB899281A GB10154/59A GB1015459A GB899281A GB 899281 A GB899281 A GB 899281A GB 10154/59 A GB10154/59 A GB 10154/59A GB 1015459 A GB1015459 A GB 1015459A GB 899281 A GB899281 A GB 899281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feed
- extraction
- stripping zone
- bottom temperature
- bottoms
- 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
- 238000000605 extraction Methods 0.000 title abstract 9
- 239000004215 Carbon black (E152) Substances 0.000 title abstract 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 title abstract 3
- 229930195733 hydrocarbon Natural products 0.000 title abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 4
- 238000009835 boiling Methods 0.000 abstract 4
- 238000001816 cooling Methods 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 4
- 239000008346 aqueous phase Substances 0.000 abstract 2
- 230000003197 catalytic effect Effects 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000004064 recycling Methods 0.000 abstract 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
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
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aromatic hydrocarbons are recovered from liquid hydrocarbon mixtures by extraction in a counterflow multistage extraction system at 140 DEG -155 DEG C. and under sufficient pressure to maintain the liquid phase with an aromatics-selective solvent boiling in the range 225 DEG -295 DEG C. and containing not more than 2% by weight of water; passing the extract at 140 DEG -155 DEG C. without appreciable flashing into a stripping zone operated at a lower pressure of at least 1,5 atmospheres absolute with a top temperature of 140 DEG -155 DEG C. and a bottom temperature of at least 190 DEG C.; condensing the overhead vapours and returning them, after removal of the aqueous phase, to the extraction; cooling the bottoms by at least 15 DEG C. to 170 DEG -180 DEG C. and distilling with direct steam at less than 0,5 atmospheres absolute and a bottom temperature of at least 150 DEG C. but at least 30 DEG C. lower than the bottom temperature of the stripping zone; and recycling the bottoms from the distillation, after cooling if necessary, to the extraction. The feed may be a catalytic reformate preferably not boiling above 220 DEG C. The solvent may be a glycol or sulpholane used in a volume ratio to feed of 3-8:1. The number of theoretical stages is preferably at least five, the feed being introduced at the first or second, as is the recycle from the stripping zone which amounts to a volume ratio to feed of 0,2-0,7:1. The weight ratio of vaporous material in the extract entering the stripping zone to fresh feed to the system should be less than 1:10. Specifications 739,200, 865,698, 888,147 and 899,280 are referred to.ALSO:Aromatic hydrocarbons are recovered from liquid hydrocarbon mixtures by extraction in a counterflow multistage extraction system at 140 DEG C.-155 DEG C. and under sufficient pressure to maintain the liquid phase with an aromatics-selective solvent boiling in the range 225 DEG C.-295 DEG C. and containing not more than 2% by weight of water; passing the extract at 140 DEG C.-155 DEG C. without appreciable flashing into a stripping zone operated at a lower pressure of at least 1.5 atmospheres absolute with a top temperature of 140 DEG C.-155 DEG C. and a bottom temperature of at least 190 DEG C.; condensing the overhead vapours and returning them, after removal of the aqueous phase, to the extraction; cooling the bottoms by at least 15 DEG C. to 170 DEG C.-180 DEG C. and distilling with direct steam at less than 0.5 atmospheres absolute and a bottom temperature of at least 150 DEG C. but at least 30 DEG C. lower than the bottom temperature of the stripping zone; and recycling the bottoms from the distillation, after cooling, if necessary, to the extraction. The feed may be a catalytic reformate preferably not boiling above 220 DEG C. The solvent may be a glycol or sulpholane used in a volume ratio to feed of 3-8 : 1. The number of theoretical stages is preferably at least five, the feed being introduced at the first or second as is the recycle from the stripping zone which amounts to a volume ratio to feed of 0.2-0.7 : 1. The amount of vaporous material in the extract entering the stripping zone should be less than that giving a weight ratio to fresh feed to the system of 1 : 10. Specifications 739,200, 865,698, 888,147 and 899,280 are referred to.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL249677D NL249677A (en) | 1959-03-24 | ||
| GB10154/59A GB899281A (en) | 1959-03-24 | 1959-03-24 | Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture |
| US848418A US3065167A (en) | 1959-03-24 | 1959-10-23 | Process for separating aromatic hydrocarbons |
| DES67688A DE1165187B (en) | 1959-03-24 | 1960-03-22 | Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture |
| FR822083A FR1252403A (en) | 1959-03-24 | 1960-03-22 | Improvement in the process of extraction and recovery of aromatic hydrocarbons in a mixture of liquid hydrocarbons |
| BE588894A BE588894A (en) | 1959-03-24 | 1960-03-22 | Process for recovering aromatic hydrocarbons from a liquid hydrocarbon mixture. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10154/59A GB899281A (en) | 1959-03-24 | 1959-03-24 | Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB899281A true GB899281A (en) | 1962-06-20 |
Family
ID=9962533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10154/59A Expired GB899281A (en) | 1959-03-24 | 1959-03-24 | Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3065167A (en) |
| BE (1) | BE588894A (en) |
| DE (1) | DE1165187B (en) |
| GB (1) | GB899281A (en) |
| NL (1) | NL249677A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL262762A (en) * | 1961-03-23 | |||
| US3210269A (en) * | 1961-04-21 | 1965-10-05 | Shell Oil Co | Dry solvent extraction of hydrocarbons |
| US4364821A (en) * | 1980-07-30 | 1982-12-21 | Uop Inc. | Fluid contacting process |
| US4519901A (en) * | 1981-12-18 | 1985-05-28 | Exxon Research & Engineering Co. | Extractive separation process |
| KR102004522B1 (en) * | 2011-07-29 | 2019-07-26 | 사우디 아라비안 오일 컴퍼니 | Integrated Selective Hydrocracking and Fluid Catalytic Cracking Process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2305038A (en) * | 1939-09-16 | 1942-12-15 | Standard Oil Dev Co | Solvent treating process |
| US2407820A (en) * | 1943-03-23 | 1946-09-17 | Shell Dev | Process for separating aromatic hydrocarbons |
| US2803685A (en) * | 1952-06-02 | 1957-08-20 | Dow Chemical Co | Process for the extraction and recovery of aromatic hydrocarbons from hydrocarbon mixtures |
| GB739200A (en) * | 1952-06-02 | 1955-10-26 | Dow Chemical Co | Process for the extraction and recovery of aromatic hydro-carbons from hydrocarbon mixtures |
| US2806071A (en) * | 1953-01-21 | 1957-09-10 | Phillips Petroleum Co | Solvent extraction of aromatics from hydrocarbons |
| US2766300A (en) * | 1953-08-17 | 1956-10-09 | Phillips Petroleum Co | Solvent extraction process |
| US2809222A (en) * | 1953-11-27 | 1957-10-08 | Phillips Petroleum Co | Solvent extraction process |
| US2905637A (en) * | 1955-06-13 | 1959-09-22 | Phillips Petroleum Co | Combined liquid-vapor phase separation process |
| US2878261A (en) * | 1956-11-15 | 1959-03-17 | Universal Oil Prod Co | Recovery and separation of naphthalenes by solvent extraction |
-
0
- NL NL249677D patent/NL249677A/xx unknown
-
1959
- 1959-03-24 GB GB10154/59A patent/GB899281A/en not_active Expired
- 1959-10-23 US US848418A patent/US3065167A/en not_active Expired - Lifetime
-
1960
- 1960-03-22 BE BE588894A patent/BE588894A/en unknown
- 1960-03-22 DE DES67688A patent/DE1165187B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3065167A (en) | 1962-11-20 |
| NL249677A (en) | |
| BE588894A (en) | 1960-09-22 |
| DE1165187B (en) | 1964-03-12 |
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