GB954851A - Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures - Google Patents

Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures

Info

Publication number
GB954851A
GB954851A GB1152760A GB1152760A GB954851A GB 954851 A GB954851 A GB 954851A GB 1152760 A GB1152760 A GB 1152760A GB 1152760 A GB1152760 A GB 1152760A GB 954851 A GB954851 A GB 954851A
Authority
GB
United Kingdom
Prior art keywords
zeolite
calcium
normal paraffins
molecular sieve
pressure
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
GB1152760A
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
Publication of GB954851A publication Critical patent/GB954851A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10G25/12—Recovery of used adsorbent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
    • B01D15/34—Size selective separation, e.g. size exclusion chromatography, gel filtration, permeation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
    • B01D15/20—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
    • B01D15/203—Equilibration or regeneration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

Normal paraffins are separated from hydrocarbon mixtures containing four or more carbon atoms by adsorption on a crystalline, zeolitic molecular sieve at 120-455 DEG C. followed by desorption of the normal paraffins without any introduction of external heat by reducing the total pressure in such a manner that the desorbed hydrocarbons flow in a direction countercurrent to the feed stream flow. The feed may boil in the range -25-150 DEG C. and is treated at a pressure of 150 mm. Hg to 5 atmospheres. The sieve may be a calcium zeolite A, strontium zeolite A, magnesium zeolite A, zeolite D, calcium zeolite D, zinc zeolite D, zeolite T, calcium rich chabazite or erionite rich in sodium, calcium, magnesium or zinc, and should have a pore size of about 5 . Desorption may be effected by reducing the pressure to 10-250 mm. Hg. In treating C6+ streams the presence of n-pentane or n-butane in the feed prevents breakthrough of n-hexane and similarly with n-butane in C5+ streams. Sieves may be periodically regenerated by oxidation at 400-565 DEG C. as described in Specification 954,852. Specifications 777,232, 868,846 and 912,936 also are referred to.
GB1152760A 1959-04-13 1960-04-01 Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures Expired GB954851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80610159A 1959-04-13 1959-04-13

Publications (1)

Publication Number Publication Date
GB954851A true GB954851A (en) 1964-04-08

Family

ID=25193319

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5023463A Expired GB954852A (en) 1959-04-13 1960-04-01 Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures
GB1152760A Expired GB954851A (en) 1959-04-13 1960-04-01 Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5023463A Expired GB954852A (en) 1959-04-13 1960-04-01 Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures

Country Status (5)

Country Link
AT (1) AT238861B (en)
BE (1) BE589498A (en)
DE (1) DE1443178A1 (en)
GB (2) GB954852A (en)
NL (2) NL250008A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958429B (en) * 2017-12-21 2021-10-22 中国石油化工股份有限公司 Method for judging shale gas adsorption gas output

Also Published As

Publication number Publication date
BE589498A (en)
NL250008A (en)
GB954852A (en) 1964-04-08
NL127503C (en)
AT238861B (en) 1965-03-10
DE1443178A1 (en) 1969-05-08

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