GB837707A - Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons - Google Patents

Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons

Info

Publication number
GB837707A
GB837707A GB2962857A GB2962857A GB837707A GB 837707 A GB837707 A GB 837707A GB 2962857 A GB2962857 A GB 2962857A GB 2962857 A GB2962857 A GB 2962857A GB 837707 A GB837707 A GB 837707A
Authority
GB
United Kingdom
Prior art keywords
catalyst
expressed
oxides
alumina
cr2o3
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
GB2962857A
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 BE571350D priority Critical patent/BE571350A/xx
Application filed by BP PLC filed Critical BP PLC
Priority to GB2962857A priority patent/GB837707A/en
Priority to FR1211674D priority patent/FR1211674A/en
Publication of GB837707A publication Critical patent/GB837707A/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
    • C10G35/00—Reforming naphtha
    • C10G35/04—Catalytic reforming
    • C10G35/10—Catalytic reforming with moving catalysts
    • C10G35/14—Catalytic reforming with moving catalysts according to the "fluidised-bed" technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/92—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • 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

Landscapes

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

Abstract

A chromium oxide catalyst is regenerated by burning off carbonaceous deposits and oxidizing a proportion of the chromium to the hexavalent state after or preferably during the regeneration period, in the latter case using oxygen in excess of that required to remove the said deposits. Preferably the catalyst is alumina supported, the particularly preferred composition being 5-25% chromium oxide (expressed as Cr2O3), 0.1-5% of promoting compounds (expressed as oxides), balance alumina, all percentages being by weight of total catalyst stable at 1020 DEG F. Promoters may be compounds, preferably oxides, of rare earths, Bi, B, Ge, Ni, Mn alkali metal; or spinels such as Co chromite Cu chromite, Zn titanate, Fe chromite (possibly as chrome ironstone). The catalyst exemplified is 10% Cr2O3, 1% Ce2O3, 1% K2O on alumina.ALSO:Non-aromatic hydrocarbons are dehydrogenated or dehydrocyclized by contacting a feedstock consisting of or containing non-aromatic hydrocarbons with a chromium oxide catalyst to increase the olefin and/or aromatic content, the catalyst is regenerated by burning off carbonaceous deposits, a proportion of the Cr of the catalyst is oxidized to the hexavalent state after, or preferably during, regeneration (with excess oxygen) and the regenerated catalyst is re-used in further processing. The following features are preferred: (a) the catalyst is aluminium-supported and particularly is 5.25% Cr oxide expressed as Cr2O3, 0.1-5% promoters expressed as oxides, balance alumina the percentages being calculated by weight of total catalyst stable at 1020 DEG F., (b) the process employs a moving or fluidized bed with a cyclic movement of the catalyst between reactor and regenerator; (c) the residence time in the regenerator is at least 15 minutes; (d) the process is operated at 840-1075 DEG F., not more than 50 p.s.i.g., and without recycle of hydrogen-containing gas produced or addition of extraneous hydrogen. The catalyst promoters may be compounds (preferably oxides) of rare earths (e.g. Ce), Bi, B, Ge, Ni, Mn, alkali metal (e.g. K); also spinels such as chromites of Co, Cu or Fe (e.g. chrome ironstone) or zinc titanate.
GB2962857A 1957-09-20 1957-09-20 Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons Expired GB837707A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE571350D BE571350A (en) 1957-09-20
GB2962857A GB837707A (en) 1957-09-20 1957-09-20 Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons
FR1211674D FR1211674A (en) 1957-09-20 1958-09-19 Process for the dehydrogenation or dehydrocyclization of non-aromatic hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2962857A GB837707A (en) 1957-09-20 1957-09-20 Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons

Publications (1)

Publication Number Publication Date
GB837707A true GB837707A (en) 1960-06-15

Family

ID=10294557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2962857A Expired GB837707A (en) 1957-09-20 1957-09-20 Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons

Country Status (3)

Country Link
BE (1) BE571350A (en)
FR (1) FR1211674A (en)
GB (1) GB837707A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010140005A2 (en) 2009-06-05 2010-12-09 Johnson Matthey Plc Catalyst and process
WO2012073039A2 (en) 2010-12-03 2012-06-07 Johnson Matthey Public Limited Company Dehydrogenation process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312780A (en) * 1980-09-15 1982-01-26 Air Products And Chemicals, Inc. Reactivation of spent chromia-alumina catalyst by zinc oxide doping

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010140005A2 (en) 2009-06-05 2010-12-09 Johnson Matthey Plc Catalyst and process
WO2012073039A2 (en) 2010-12-03 2012-06-07 Johnson Matthey Public Limited Company Dehydrogenation process

Also Published As

Publication number Publication date
BE571350A (en)
FR1211674A (en) 1960-03-17

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