DE3565395D1 - Process for the recovery of alkylaromatic hydrocarbons from the effluent stream of a hydrocarbon conversion zone - Google Patents
Process for the recovery of alkylaromatic hydrocarbons from the effluent stream of a hydrocarbon conversion zoneInfo
- Publication number
- DE3565395D1 DE3565395D1 DE8585307476T DE3565395T DE3565395D1 DE 3565395 D1 DE3565395 D1 DE 3565395D1 DE 8585307476 T DE8585307476 T DE 8585307476T DE 3565395 T DE3565395 T DE 3565395T DE 3565395 D1 DE3565395 D1 DE 3565395D1
- Authority
- DE
- Germany
- Prior art keywords
- fractionation column
- prod
- stream
- reboiler
- passing
- 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
Abstract
An alkylaromatic hydrocarbon is recovered from effluent stream of aromatic hydrocarbon alkylation zone by (a) passing alkylation zone effluent stream which comprises feed aromatic hydrocarbon, prod. alkylaromatic hydrocarbon, and by-prod. alkylaromatic having higher pt. than prod. alkylaromatic hydrocarbon into 1st fractionation column at intermediate pt., with 1st reboiler located at the bottom of 1st fractionation column; (b) supplying heat to 1st fractionation column by vapourising bottoms liq. by indirect heat exchange in 1st reboiler and passing vapour into 1st fractionation column, with vapour having 1st temp.; (c) reccvering 1st net overhead prod. stream, which is rich in the feed aromatic hydrocarbon, from 1st fractionation column; (d) removing 1st net bottoms stream, which is rich in prod. alkylaromatic hydrocarbon, from 1st fractionation column and passing 1st net bottoms stream into 2nd column; (e) removing 2nd net bottoms stream, which is rich in the by-prod. alkylaromatic hydrocarbon, from 2nd fractionation column; (f) supplying additional heat to 1st fractionation column by vapourising process liq. withdrawn at 2nd intermediate point and having a lower average pt. than bottoms liq. entering the 1st reboiler in 2nd reboiler, with the created vapour having a 2nd temp. lower than 1st temp. (g) passing overhead vapour stream, withdrawn from 2nd fractionation column and rich in prod. alkylaromatic hydrocarbon, through 2nd reboiler in indirect heat exchange relationship at 2nd intermediate pt., which results in vapourising process liq. and at least partly condensing 2nd overhead vapour stream and thereby forming a condensate; and (h) withdrawing 1st portion of ondensate as a prod. stream of the process and passing portion of the condensate into 2nd fractionation column as reflux.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85307476A EP0219584B1 (en) | 1983-11-18 | 1985-10-17 | Process for the recovery of alkylaromatic hydrocarbons from the effluent stream of a hydrocarbon conversion zone |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3565395D1 true DE3565395D1 (en) | 1988-11-10 |
Family
ID=8194402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585307476T Expired DE3565395D1 (en) | 1985-10-17 | 1985-10-17 | Process for the recovery of alkylaromatic hydrocarbons from the effluent stream of a hydrocarbon conversion zone |
Country Status (2)
Country | Link |
---|---|
AT (1) | ATE37707T1 (en) |
DE (1) | DE3565395D1 (en) |
-
1985
- 1985-10-17 DE DE8585307476T patent/DE3565395D1/en not_active Expired
- 1985-10-17 AT AT85307476T patent/ATE37707T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE37707T1 (en) | 1988-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |