GB881597A - A process for separating butylenes from butane - Google Patents
A process for separating butylenes from butaneInfo
- Publication number
- GB881597A GB881597A GB3686459A GB3686459A GB881597A GB 881597 A GB881597 A GB 881597A GB 3686459 A GB3686459 A GB 3686459A GB 3686459 A GB3686459 A GB 3686459A GB 881597 A GB881597 A GB 881597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butene
- butane
- fractionation
- point
- extract
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Butane, butene-1 and butene-2 are separated from a mixture of C4 hydrocarbons by contacting with a solvent which preferentially dissolves the butenes to obtain a butane raffinate, introducing the extract of butenes into a stripping zone wherein the ascending vapours are contacted with solvent provided by the extract and from which butene-2 is obtained as a vapour side stream, solvent is obtained as bottoms and is recycled and a mixture of butene-1 and butane is obtained overhead and is subjected to fractionation to recover butene-1 overhead. If isobutylene is present it is recovered with the butene-1; if isobutane is present this will be recovered partially with the butane and partially as overhead from the fractionation butene-1 being recovered as a side stream. Many oxygen-containing organic solvents are specified, preferred being aqueous methanol containing 2%-30% by weight of water. The extraction is effected at 5 DEG C.-65 DEG C. and 10-50 atmospheres in the liquid phase. The stripping and fractionation may be effected in a single tower having at a mid-point a tray which collects liquid bottoms from the fractionation, this liquid being passed to the extraction process at a point between the point of introduction of the hydrocarbon feed and the point of removal of the extract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3686459A GB881597A (en) | 1959-10-30 | 1959-10-30 | A process for separating butylenes from butane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3686459A GB881597A (en) | 1959-10-30 | 1959-10-30 | A process for separating butylenes from butane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB881597A true GB881597A (en) | 1961-11-08 |
Family
ID=10391798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3686459A Expired GB881597A (en) | 1959-10-30 | 1959-10-30 | A process for separating butylenes from butane |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB881597A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079679A1 (en) * | 1981-10-13 | 1983-05-25 | Nippon Zeon Co., Ltd. | Process for separating highly pure butene-1 and butene-2 |
| WO2020030995A1 (en) * | 2018-08-06 | 2020-02-13 | Sabic Global Technologies B.V. | Efficient downstream process for n-butane dehydrogenation technology for the production of high purity butylenes |
| WO2020240305A1 (en) * | 2019-05-31 | 2020-12-03 | Sabic Global Technologies B.V. | Process for producing high purity 1-butene |
| CN114736092A (en) * | 2021-01-07 | 2022-07-12 | 国家能源投资集团有限责任公司 | Process for separating olefins from a mixture of alkanes and olefins |
-
1959
- 1959-10-30 GB GB3686459A patent/GB881597A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079679A1 (en) * | 1981-10-13 | 1983-05-25 | Nippon Zeon Co., Ltd. | Process for separating highly pure butene-1 and butene-2 |
| WO2020030995A1 (en) * | 2018-08-06 | 2020-02-13 | Sabic Global Technologies B.V. | Efficient downstream process for n-butane dehydrogenation technology for the production of high purity butylenes |
| US11168041B2 (en) | 2018-08-06 | 2021-11-09 | Sabic Global Technologies B.V. | Efficient downstream process for n-butane dehydrogenation technology for the production of high purity butylenes |
| WO2020240305A1 (en) * | 2019-05-31 | 2020-12-03 | Sabic Global Technologies B.V. | Process for producing high purity 1-butene |
| CN113874105A (en) * | 2019-05-31 | 2021-12-31 | 沙特基础工业全球技术公司 | Process for preparing high purity 1-butene |
| US11407697B2 (en) | 2019-05-31 | 2022-08-09 | Sabic Global Technologies B.V. | Process for producing high purity 1-butene |
| CN114736092A (en) * | 2021-01-07 | 2022-07-12 | 国家能源投资集团有限责任公司 | Process for separating olefins from a mixture of alkanes and olefins |
| CN114736092B (en) * | 2021-01-07 | 2024-04-02 | 国家能源投资集团有限责任公司 | Process for separating olefins from mixtures of alkanes and olefins |
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