GB857259A - Recovery of hydrocarbon diluent from process off-gas containing same - Google Patents
Recovery of hydrocarbon diluent from process off-gas containing sameInfo
- Publication number
- GB857259A GB857259A GB22898/59A GB2289859A GB857259A GB 857259 A GB857259 A GB 857259A GB 22898/59 A GB22898/59 A GB 22898/59A GB 2289859 A GB2289859 A GB 2289859A GB 857259 A GB857259 A GB 857259A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- diluent
- blower
- oil
- rate
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/02—Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
Abstract
Hydrocarbon diluents are recovered from off-gases from processes in which the diluent has been used as reaction medium, the rate of flow of off-gas varying periodically, by introducing the off-gas into an absorption zone where the diluent is absorbed in an oil, and stripping the diluent from the oil which is recycled to the absorption zone. The process may be an olefine polymerisation effected in the presence of pentane, isopentane, benzene, toluene, isooctane, cyclohexane, methylcyclohexane, decane or dodecane or other C3-C12 hydrocarbon. Off-gas saturated with the diluent is passed by a blower to the absorption tower. If the off-gas rate varies from 1,000 to 50,000 SCF per hour the blower may pass gas at a rate of 15,000 SCF per hour. The gas exit line from the absorber and the inlet to the blower are connected by a line in which gas may flow in either direction according to whether the off-gas rate is higher or lower than the blower output. Excess gas from the absorber is burned at a flare. Mineral seal oil of molecular weight 100-250 and boiling in the range 400 DEG F.-600 DEG F. is used as absorption oil and is stripped with steam.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US857259XA | 1958-09-05 | 1958-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857259A true GB857259A (en) | 1960-12-29 |
Family
ID=22193543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22898/59A Expired GB857259A (en) | 1958-09-05 | 1959-07-03 | Recovery of hydrocarbon diluent from process off-gas containing same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB857259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027634A1 (en) * | 1995-03-03 | 1996-09-12 | Advanced Extraction Technologies, Inc. | Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes |
| US9156757B2 (en) | 2010-01-21 | 2015-10-13 | Rhodia Operations | Process for the oxidation of hydrocarbons |
-
1959
- 1959-07-03 GB GB22898/59A patent/GB857259A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027634A1 (en) * | 1995-03-03 | 1996-09-12 | Advanced Extraction Technologies, Inc. | Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes |
| US5681908A (en) * | 1995-03-03 | 1997-10-28 | Advanced Extraction Technologies, Inc. | Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes |
| US9156757B2 (en) | 2010-01-21 | 2015-10-13 | Rhodia Operations | Process for the oxidation of hydrocarbons |
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