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 zone

Info

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
Application number
DE8585307476T
Other languages
German (de)
Inventor
Dennis John Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UOP LLC
Original Assignee
UOP LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UOP LLC filed Critical UOP LLC
Priority claimed from EP85307476A external-priority patent/EP0219584B1/en
Application granted granted Critical
Publication of DE3565395D1 publication Critical patent/DE3565395D1/en
Expired legal-status Critical Current

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.
DE8585307476T 1985-10-17 1985-10-17 Process for the recovery of alkylaromatic hydrocarbons from the effluent stream of a hydrocarbon conversion zone Expired DE3565395D1 (en)

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)

Also Published As

Publication number Publication date
ATE37707T1 (en) 1988-10-15

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