GB542500A - Improvements relating to the production of cyclic hydrocarbons - Google Patents

Improvements relating to the production of cyclic hydrocarbons

Info

Publication number
GB542500A
GB542500A GB594540A GB594540A GB542500A GB 542500 A GB542500 A GB 542500A GB 594540 A GB594540 A GB 594540A GB 594540 A GB594540 A GB 594540A GB 542500 A GB542500 A GB 542500A
Authority
GB
United Kingdom
Prior art keywords
hydrocarbons
stage
atmospheres
naphthenic
range
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
GB594540A
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.)
HERBERT MAX EMIL STEINER
Anglo Iranian Oil Co Ltd
Original Assignee
HERBERT MAX EMIL STEINER
Anglo Iranian Oil Co Ltd
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 HERBERT MAX EMIL STEINER, Anglo Iranian Oil Co Ltd filed Critical HERBERT MAX EMIL STEINER
Priority to GB594540A priority Critical patent/GB542500A/en
Publication of GB542500A publication Critical patent/GB542500A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • 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
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/10—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
    • 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
    • C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
    • C07C5/41—Catalytic processes
    • C07C5/412—Catalytic processes with metal oxides or metal sulfides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/24—Chromium, molybdenum or tungsten
    • C07C2523/26—Chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/24—Chromium, molybdenum or tungsten
    • C07C2523/28—Molybdenum
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/72—Copper
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/755—Nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

542,500. Naphthenic hydrocarbons. ANGLOIRANIAN OIL CO., Ltd., FAWCETT, E. W. M., and STEINER, H. M. E. April 2, 1940, No. 5945. [Class 2 (iii)] Paraffin hydrocarbons containing 5 or more carbon atoms in the molecule are converted into naphthenic hydrocarbons by a two-stage continuous process which comprises a first stage in which the paraffin hydrocarbons are contacted with chromic oxide or molybdic oxide or other known dehydrogenating catalyst of Sub-group A of Group III of the Periodic Table at a temperature within the range 400‹-700‹ C. under a pressure in the range 1-100 atmospheres, to produce a re-action product comprising aromatic hydrocarbons and hydrogen, and a second stage in which the re-action product is contacted with a hydrogenating catalyst under conditions of -temperature and pressure favourable to the conversion of the re-action product into naphthenic 'hydrocarbons. If desired additional hydrogen may be added after the first stage and before the re-actants are passed to the second stage. The second stage is preferably carried out at a temperatures of 100‹-400‹ C. and a pressure of 1-100 atmospheres. ' The catalysts used for this second stage are of two types (1) a metal such as finely divided nickel or copper which may be supported on a porous carrier such as kieselguhr or alumina gel in which case the treatment is carried out at 100‹-300‹ C. and at pressures of 1-50 atmospheres. (2) A sulphurresistant metallic oxide or sulphide such as molybdic oxide or molybdenum disulphide, or mixtures such as mixed nickel or tungsten sulphides in which case the treatment is carried out at 200‹-500‹ C. and at pressures of 10-500 atmospheres. The catalysts may either be used in the form of pellets or incorporated with porous carriers such as active carbon. In an example, paraffin hydrocarbons or materials containing paraffin hydrocarbons are passed through a re-action vessel containing chromic oxide gel at a temperature within the range 400‹-700‹ C. under a pressure in the range 1-100 atmospheres. The re-action product comprising aromatic hydrocarbons and hydrogen is passed over a hydrogenation catalyst to yield the required naphthenic hydrocarbons. The Provisional Specification describes also conditions of operation of the second stage of the process whereby a product is obtained which does not consist wholly of naphthenic hydrocarbons but contains aromatic hydrocarbons.
GB594540A 1940-04-02 1940-04-02 Improvements relating to the production of cyclic hydrocarbons Expired GB542500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB594540A GB542500A (en) 1940-04-02 1940-04-02 Improvements relating to the production of cyclic hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB594540A GB542500A (en) 1940-04-02 1940-04-02 Improvements relating to the production of cyclic hydrocarbons

Publications (1)

Publication Number Publication Date
GB542500A true GB542500A (en) 1942-01-13

Family

ID=9805557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB594540A Expired GB542500A (en) 1940-04-02 1940-04-02 Improvements relating to the production of cyclic hydrocarbons

Country Status (1)

Country Link
GB (1) GB542500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420030A (en) * 1943-04-13 1947-05-06 Standard Oil Dev Co Motor fuels and preparation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420030A (en) * 1943-04-13 1947-05-06 Standard Oil Dev Co Motor fuels and preparation thereof

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