GB898058A - Improvements in or relating to the separation of hydrocarbon mixtures - Google Patents

Improvements in or relating to the separation of hydrocarbon mixtures

Info

Publication number
GB898058A
GB898058A GB40017/59A GB4001759A GB898058A GB 898058 A GB898058 A GB 898058A GB 40017/59 A GB40017/59 A GB 40017/59A GB 4001759 A GB4001759 A GB 4001759A GB 898058 A GB898058 A GB 898058A
Authority
GB
United Kingdom
Prior art keywords
effected
purging
hydrocarbons
desorption
hydrogen
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
GB40017/59A
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.)
BP PLC
Original Assignee
BP PLC
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
Priority to BE597402D priority Critical patent/BE597402A/xx
Priority to IT640428D priority patent/IT640428A/it
Priority to CA713894A priority patent/CA713894A/en
Application filed by BP PLC filed Critical BP PLC
Priority to GB40017/59A priority patent/GB898058A/en
Priority to AU66816/60A priority patent/AU256740B1/en
Priority to FR844696A priority patent/FR1274138A/en
Priority to DE19601470463 priority patent/DE1470463A1/en
Publication of GB898058A publication Critical patent/GB898058A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/02—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material
    • C10G25/03—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Detergent Compositions (AREA)
  • Lubricants (AREA)

Abstract

In the regeneration of zeolitic molecular sieves which have been used to separate vapour mixtures of normally liquid adsorbable hydrocarbons with non-adsorbable hydrocarbons, non-adsorbed and surface adsorbed hydrocarbons are purged from the zeolite bed with a purge gas, before desorption to recover the adsorbed fraction is effected. Purging is effected, preferably at a temperature equal or less than and not longer than for the first stage, with a normally gaseous medium such as isobutane or nitrogen, or by vacuum purging at 0 to 100 mm. Hg, and desorption is effected with for example n-butane or hydrogen. Adsorption is generally effected at 0 DEG to 600 DEG C., and is preferably discontinued before breakthrough. The effluents from the purging and adsorption stages are combined. In Example 1 a 25%/75% weight mixture of heptane and iso-octane is contacted with a 5 molecular sieve at 200 DEG C. purging is effected at 10 to 20 mm. Hg at 200 DEG to 230 DEG C., and desorption is effected at 300 DEG to 330 DEG C. with hydrogen. In Example 2 a desulphurized light naphtha comprising C6-C9 hydrocarbons is contacted with a 5 molecular sieve at 250 DEG C., purging is effected at 250 DEG C. with nitrogen, and desorption is effected at 250 DEG C. with hydrogen.ALSO:The separation of mixtures of normally liquid adsorbable hydrocarbons with non-adsorbable hydrocarbons is effected by means of a zeolitic molecular sieve. Non-adsorbed and surface adsorbed hydrocarbons are purged from the zeolite bed with a purge gas, before desorption to recover the adsorbed fraction is effected. Purging is effected, preferably at a temperature equal to or less than and for not longer than, the adsorption, with a normally gaseous medium such as isobutane or nitrogen, or by vacuum purging at 0 to 100 mm Hg. and desorption is effected with, for example, n-butane or hydrogen. Adsorption is generally effected at 0 DEG C. to 600 DEG C. and is preferably discontinued before break-through. The effluents from the purging and adsorption steps are combined. In Example 1 a 25%/75% weight mixture of heptane and isooctane is contacted with a 5 molecular sieve at 200 DEG C.; purging is effected at 10 to 20 mm Hg at 200 DEG C. to 230 DEG C., and adsorption is effected at 300 DEG C. to 330 DEG C. with hydrogen. In Example 2 a desulphurised light naphtha comprising C6-C9 hydrocarbons is contacted with a 5 molecular sieve at 250 DEG C.; purging is effected at 250 DEG C. with nitrogen, and desorption is effected at 250 DEG C. with hydrogen.
GB40017/59A 1959-11-25 1959-11-25 Improvements in or relating to the separation of hydrocarbon mixtures Expired GB898058A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE597402D BE597402A (en) 1959-11-25
IT640428D IT640428A (en) 1959-11-25
CA713894A CA713894A (en) 1959-11-25 Separation of mixtures
GB40017/59A GB898058A (en) 1959-11-25 1959-11-25 Improvements in or relating to the separation of hydrocarbon mixtures
AU66816/60A AU256740B1 (en) 1959-11-25 1960-11-22 Improvements relating tothe separation of hydrocarbon mixtures using molecular sieves
FR844696A FR1274138A (en) 1959-11-25 1960-11-22 Process for the separation of normally liquid adsorbable hydrocarbons from mixtures with non-adsorbable hydrocarbons
DE19601470463 DE1470463A1 (en) 1959-11-25 1960-11-24 Process for the separation of straight-chain hydrocarbons, which are liquid under normal conditions, from mixtures with branched-chain and / or cyclic ones using molecular sieves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40017/59A GB898058A (en) 1959-11-25 1959-11-25 Improvements in or relating to the separation of hydrocarbon mixtures

Publications (1)

Publication Number Publication Date
GB898058A true GB898058A (en) 1962-06-06

Family

ID=10412746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40017/59A Expired GB898058A (en) 1959-11-25 1959-11-25 Improvements in or relating to the separation of hydrocarbon mixtures

Country Status (7)

Country Link
AU (1) AU256740B1 (en)
BE (1) BE597402A (en)
CA (1) CA713894A (en)
DE (1) DE1470463A1 (en)
FR (1) FR1274138A (en)
GB (1) GB898058A (en)
IT (1) IT640428A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359328A (en) 1980-04-02 1982-11-16 Union Carbide Corporation Inverted pressure swing adsorption process
US4368347A (en) * 1980-08-07 1983-01-11 Sisas S.P.A. Process for the separation of metaxylene from mixtures of aromatic hydrocarbons
US4375363A (en) * 1978-12-05 1983-03-01 Union Carbide Corporation Selective adsorption process for production of ammonia synthesis gas mixtures
US4414191A (en) 1981-08-07 1983-11-08 Union Carbide Corporation Process for the production of ammonia
US4427644A (en) 1980-07-07 1984-01-24 Peroxid-Chemie Gmbh Process for the preparation of bivalent metal peroxides
US4475929A (en) * 1978-12-05 1984-10-09 Union Carbide Corporation Selective adsorption process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523075A (en) * 1968-03-11 1970-08-04 Texaco Inc Control of purge velocity and volume in molecular sieve separation of hydrocarbons

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375363A (en) * 1978-12-05 1983-03-01 Union Carbide Corporation Selective adsorption process for production of ammonia synthesis gas mixtures
US4475929A (en) * 1978-12-05 1984-10-09 Union Carbide Corporation Selective adsorption process
US4359328A (en) 1980-04-02 1982-11-16 Union Carbide Corporation Inverted pressure swing adsorption process
US4427644A (en) 1980-07-07 1984-01-24 Peroxid-Chemie Gmbh Process for the preparation of bivalent metal peroxides
US4368347A (en) * 1980-08-07 1983-01-11 Sisas S.P.A. Process for the separation of metaxylene from mixtures of aromatic hydrocarbons
US4414191A (en) 1981-08-07 1983-11-08 Union Carbide Corporation Process for the production of ammonia

Also Published As

Publication number Publication date
IT640428A (en)
BE597402A (en)
DE1470463A1 (en) 1969-01-16
AU256740B1 (en) 1962-11-22
CA713894A (en) 1965-07-20
FR1274138A (en) 1961-10-20

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