GB753783A - Process for the dehydroisomerisation of c-ring naphthenes - Google Patents

Process for the dehydroisomerisation of c-ring naphthenes

Info

Publication number
GB753783A
GB753783A GB18120/54A GB1812054A GB753783A GB 753783 A GB753783 A GB 753783A GB 18120/54 A GB18120/54 A GB 18120/54A GB 1812054 A GB1812054 A GB 1812054A GB 753783 A GB753783 A GB 753783A
Authority
GB
United Kingdom
Prior art keywords
per
per cent
catalyst
hydrogen
ring naphthenes
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
GB18120/54A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB753783A publication Critical patent/GB753783A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
    • C07C5/387—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation of cyclic compounds containing non six-membered ring to compounds containing a six-membered aromatic ring
    • 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
    • C10G35/00—Reforming naphtha
    • C10G35/04—Catalytic reforming
    • C10G35/06—Catalytic reforming characterised by the catalyst used
    • C10G35/085—Catalytic reforming characterised by the catalyst used containing platinum group metals or compounds thereof
    • C10G35/09—Bimetallic catalysts in which at least one of the metals is a platinum group metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

C5-ring naphthenes having one or more methyl groups are converted to the corresponding aromatic hydrocarbons by contacting them in the presence of hydrogen at a temperature of 420 DEG to 570 DEG C. with a catalyst having a surface area greater than 300 square metres per gram and containing from 0.1 to 0.8 per cent of alumina and 0.1 to 1 per cent of platinum. The hydrogen may be in an amount of from 1 to 12 mols. per mol. of hydrocarbon and may be introduced at pressures between 5 and 1000 lbs. per square inch absolute. The catalyst which may be made according to the method described in Group III may be in the form of granules, pellets or of a powder. The process is particularly applicable to the conversion of methyl cyclopentane to benzene, and dimethyl cyclopentane to toluene. Specification 686,641 is referred to.ALSO:A catalyst for use in the conversion of C5-ring naphthenes having one or more methyl groups to the corresponding aromatic hyrocarbons, as described in (Group IV(b)) consists of silica gel having a surface area greater than 300 square metres per gram and containing from 0.1 to 0.8 per cent of alumina and 0.1 to 1.0 per cent of platinum. It may be made by adding an aqueous solution of sodium disilicate to a mixture of aqueous solutions of hydrochloric acid and aluminium chloride and then ageing the resulting hydrogel for 3 days. After washing, and drying at 120 DEG C. it is then carefully soaked in a solution of tetrammine platinous chloride, washed, dried and then calcined, in vacuum, or in an atmosphere of nitrogen or hydrogen. Specification 686,641 is referred to.
GB18120/54A 1953-06-23 1954-06-21 Process for the dehydroisomerisation of c-ring naphthenes Expired GB753783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US753783XA 1953-06-23 1953-06-23

Publications (1)

Publication Number Publication Date
GB753783A true GB753783A (en) 1956-08-01

Family

ID=22125320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18120/54A Expired GB753783A (en) 1953-06-23 1954-06-21 Process for the dehydroisomerisation of c-ring naphthenes

Country Status (2)

Country Link
DE (1) DE937046C (en)
GB (1) GB753783A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081871B (en) * 1956-01-26 1960-05-19 Houdry Process Corp Process for the preparation of bifunctional, platinum-containing isomerization-dehydrogenation catalysts

Also Published As

Publication number Publication date
DE937046C (en) 1955-12-29

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