DE3471475D1 - Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas - Google Patents

Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas

Info

Publication number
DE3471475D1
DE3471475D1 DE8484109721T DE3471475T DE3471475D1 DE 3471475 D1 DE3471475 D1 DE 3471475D1 DE 8484109721 T DE8484109721 T DE 8484109721T DE 3471475 T DE3471475 T DE 3471475T DE 3471475 D1 DE3471475 D1 DE 3471475D1
Authority
DE
Germany
Prior art keywords
purge gas
stream
iii
paraffin
wash
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
DE8484109721T
Other languages
German (de)
Inventor
Robert Lawton Gray
Thomas Charles Holcombe
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Priority claimed from EP84109721A external-priority patent/EP0171451B1/en
Application granted granted Critical
Publication of DE3471475D1 publication Critical patent/DE3471475D1/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Sepn. of n-paraffins (I) and non-n-paraffins (II) from their vapour-phase mixts. is effected by passing the mixt. through a sequence of zeolite molecular sieve selective adsorbent beds, the process being characterised in that: (i) a non-soluble purge gas (III) is used to (a) desorb (I) form each bed and (b) transfer non-adsorbed (II) from each bed; (ii) the desorption effluent stream is sepd. into (A) a purge gas stream contg. some residual (I) and (B) a (I) product stream, (A) being recycled; and (iii) the effluent stream comprising (III) and the non-adsorbed (II) is sepd. into (C) a purge gas stream contg. some residual (II) and (D) a (II) product stream, (C) being recycled. The improvement comprises lowering the residuals contents of (A) and (C) prior to recycle by washing them with a portion of the product streams (B) and (D), specifially (A) with (D) and (C) with (B).
DE8484109721T 1984-08-16 1984-08-16 Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas Expired DE3471475D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84109721A EP0171451B1 (en) 1982-10-14 1984-08-16 Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas

Publications (1)

Publication Number Publication Date
DE3471475D1 true DE3471475D1 (en) 1988-06-30

Family

ID=8192114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484109721T Expired DE3471475D1 (en) 1984-08-16 1984-08-16 Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas

Country Status (1)

Country Link
DE (1) DE3471475D1 (en)

Similar Documents

Publication Publication Date Title
BR8507189A (en) ADSORCATION PROCESS BY PRESSURE SWING FOR THE SEPARATION OF A GAS MIXTURE
TW349936B (en) Process for the production of ethanol and isopropanol
US4726816A (en) Reformer-pressure swing adsorption process for the production of carbon monoxide
US3338030A (en) Depressuring technique for deltap adsorption process
KR880002565A (en) Adsorption Separation Process of Gas Mixtures
US4685939A (en) Production of oxygen enriched air
FR2599274B1 (en) PROCESS AND PLANT FOR SEPARATING A GAS MIXTURE BY ADSORPTION.
US2918140A (en) Treatment of gas mixtures
DE3462089D1 (en) Process for drying gas streams
AU618881B2 (en) Process for purifying 1,1,1,2-tetrafluoroethane
DE3660910D1 (en) Process for separating isoprene
MY104108A (en) Selective adsorption of co2 on zeolites
GB1041469A (en) Process for the continuous, simultaneous separation of the normal aliphatic and aromatic components of hydrocarbon mixtures
IL131394A0 (en) Chromatographic purification of chlorinated sucrose
MY101222A (en) Process for the dehydrocyclodemerization of c3-c4 aliphatic hydrocarbons
EP0545559B1 (en) Separation of gas mixtures
ES8205570A1 (en) Process for the separation of three components from a mixture by solid-bed adsorption and desorption.
CA2016045A1 (en) Gas separation by pressure swing adsorption
EP0251773A3 (en) Hydrocarbon isomerization process and apparatus
EP0398339A3 (en) Adsorptive process for producing two gas streams from a gas mixture
TW358801B (en) Process for the production of hydrocarbon partial oxidation products
DE3471475D1 (en) Improved n-paraffin-isoparaffin separation process using wash of recycle purge gas
JPH06501719A (en) Improved recirculation for linear paraffin purification processes
DE3061843D1 (en) Pressure swing adsorption process for the decomposition or purification of gas mixtures
US2999861A (en) Segregation of organic nitrogen compounds

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee