GB1104513A - Aromatic hydrocarbon extraction process - Google Patents
Aromatic hydrocarbon extraction processInfo
- Publication number
- GB1104513A GB1104513A GB587865A GB587865A GB1104513A GB 1104513 A GB1104513 A GB 1104513A GB 587865 A GB587865 A GB 587865A GB 587865 A GB587865 A GB 587865A GB 1104513 A GB1104513 A GB 1104513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extraction zone
- extraction
- zone
- raffinate
- xylenes
- 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
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
- C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
- C10G21/12—Organic compounds only
- C10G21/20—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
-
- 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)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Abstract
In a process wherein the overall effect is to separate by solvent extraction alkyl naphthalenes from the remaining mainly aliphatic constituents of cycle oil, two extraction zones are used each containing the same solvent which is a mixture of dimethylformamide and water containing 5 to 18% preferably about 10% water. As shown, the cycle oil is fed to extraction zone 2 through line 7, the feed to extraction zone 1 along line 3 being a displacer oil, i.e. a mixture of xylenes and non-aromatic hydrocarbons, e.g. C6 to C8 paraffins, the mixture preferably having a boiling range at least 56 DEG C. lower than the cycle oil. The extract from extraction zone 2 contains the alkyl naphthalenes and is passed via line 10 to extraction zone 1 where the xylenes of the displacer oil displace the alkyl naphthalenes into the raffinate. The extract from extraction zone 1 is passed via line 6 to extraction zone 2 where the alkyl naphthalenes displace the xylenes into the raffinate. <PICT:1104513/C4-C5/1> The raffinate from extraction zone 1 is passed via line 5 to distillation zone 3 where the alkyl naphthalenes are separated and removed, the other constituents being recycled to extraction zone 1 via line 31. The raffinate from extraction zone 2 is passed to distillation zone 4 where the non-aromatic constituents of the cycle oil are separated and removed, the remaining constituents, mainly xylenes and some solvent, are recycled to extraction zone 1 through line 31.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34385864A | 1964-02-10 | 1964-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1104513A true GB1104513A (en) | 1968-02-28 |
Family
ID=23347990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB587865A Expired GB1104513A (en) | 1964-02-10 | 1965-02-10 | Aromatic hydrocarbon extraction process |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1545327A1 (en) |
| GB (1) | GB1104513A (en) |
-
1965
- 1965-02-05 DE DE19651545327 patent/DE1545327A1/en active Pending
- 1965-02-10 GB GB587865A patent/GB1104513A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1545327A1 (en) | 1970-06-25 |
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