GB553705A - Execution of catalytic conversions in the presence of ferrous metals - Google Patents

Execution of catalytic conversions in the presence of ferrous metals

Info

Publication number
GB553705A
GB553705A GB11721/41A GB1172141A GB553705A GB 553705 A GB553705 A GB 553705A GB 11721/41 A GB11721/41 A GB 11721/41A GB 1172141 A GB1172141 A GB 1172141A GB 553705 A GB553705 A GB 553705A
Authority
GB
United Kingdom
Prior art keywords
catalyst
sulphur
sept
hydrocarbons
contamination
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
GB11721/41A
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.)
Shell Development Co
Original Assignee
Shell Development Co
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 Shell Development Co filed Critical Shell Development Co
Publication of GB553705A publication Critical patent/GB553705A/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
    • C07C5/321—Catalytic processes
    • C07C5/322—Catalytic processes with metal oxides or metal sulfides
    • 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
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3332—Catalytic processes with metal oxides or metal sulfides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

553,705. Catalytic processes; hydrocarbons. SHELL DEVELOPMENT CO. Sept. 12, 1941, Nos. 11721 and 11722. Convention dates, Sept. 9, 1940, and May 3, 1941. [Class 1 (i)] [Also in Group IV] In the vapour phase conversion of carbonaceous materials in the presence of a ferrous metal and a catalyst susceptible to contamination by iron, which catalyst is periodically regenerated by oxidation, there is maintained in the feed to the conversion zone from 0.0006 to 0.015 per cent. of sulphur in the form of elemental sulphur or a reducible sulphur compound, thereby inhibiting the contamination of the catalyst by iron. Reducible selenium and tellurium compounds may be similarly used. Preferred compounds are carbonyl sulphide, sulphur trioxide, thiophenic compounds, mercaptans, dialkyl sulphides and organic polysulphides. The process is applicable to the dehydrogenation of hydrocarbons, particularly of propane and butane, at temperatures above 500‹F. using supported chromium oxide catalyst in a chrome steel converter.
GB11721/41A 1940-09-09 1941-09-12 Execution of catalytic conversions in the presence of ferrous metals Expired GB553705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US553705XA 1940-09-09 1940-09-09

Publications (1)

Publication Number Publication Date
GB553705A true GB553705A (en) 1943-06-02

Family

ID=21997361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11721/41A Expired GB553705A (en) 1940-09-09 1941-09-12 Execution of catalytic conversions in the presence of ferrous metals

Country Status (1)

Country Link
GB (1) GB553705A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604438A (en) * 1949-05-23 1952-07-22 Shell Dev Catalytic dehydrogenation of hydrocarbon oils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604438A (en) * 1949-05-23 1952-07-22 Shell Dev Catalytic dehydrogenation of hydrocarbon oils

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