US2951886A - Recovery and purification of benzene - Google Patents

Recovery and purification of benzene Download PDF

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Publication number
US2951886A
US2951886A US728620A US72862058A US2951886A US 2951886 A US2951886 A US 2951886A US 728620 A US728620 A US 728620A US 72862058 A US72862058 A US 72862058A US 2951886 A US2951886 A US 2951886A
Authority
US
United States
Prior art keywords
benzene
approximately
temperature
stock
catalyst
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 - Lifetime
Application number
US728620A
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English (en)
Inventor
Thorwell H Paulsen
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.)
Ashland LLC
Original Assignee
Ashland Oil Inc
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 BE577729D priority Critical patent/BE577729A/xx
Priority to NL113125D priority patent/NL113125C/xx
Application filed by Ashland Oil Inc filed Critical Ashland Oil Inc
Priority to US728620A priority patent/US2951886A/en
Priority to DEP1270A priority patent/DE1270017B/de
Priority to ES0248649A priority patent/ES248649A1/es
Priority to FR792137A priority patent/FR1221539A/fr
Priority to GB12817/59A priority patent/GB916597A/en
Application granted granted Critical
Publication of US2951886A publication Critical patent/US2951886A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/04—Benzene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
    • C07C4/12—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene
    • C07C4/14—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene splitting taking place at an aromatic-aliphatic bond
    • C07C4/18—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • 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
    • 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
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/30—Aromatics

Definitions

  • This invention relates to the recovery and purification of benzene from crude coke oven or coal tar light oils.
  • While the invention has been disclosed principally in relation to the recovery of purified benzene from coal tar light oil, the invention is also useful for the treatment of other types of charge stocks containing benzene such as relatively high boiling catalytic reformate fractions.
  • a catalytic reformate boiling in the 300- 400 F. range containing 80-85% alkyl substituted benzenes and 15-20% parattins may be used as the charge stock in the practice of the present invention to produce a hikh yield of benzene, thereby up-grading the commercial value of the reformate.
  • the process of recovering benzene of at least nitration grade purity from an impure hydrocarbon stock containing benzene and alkyl benzene components which '6 process comprises subjecting the said stock, in a single pass, to catalytic cracking conditions in the presence of hydrogen and a catalyst consisting of approximately to by weight of chromium oxide on a high purity 5 low sodium content gamma-type alumina support, at a temperature above approximately 1200 F. whereby a 7 high yield of benzene is obtained.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
US728620A 1958-04-15 1958-04-15 Recovery and purification of benzene Expired - Lifetime US2951886A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE577729D BE577729A (da) 1958-04-15
NL113125D NL113125C (da) 1958-04-15
US728620A US2951886A (en) 1958-04-15 1958-04-15 Recovery and purification of benzene
DEP1270A DE1270017B (de) 1958-04-15 1959-04-13 Verfahren zur Gewinnung von hochgereinigtem Benzol
ES0248649A ES248649A1 (es) 1958-04-15 1959-04-14 Un procedimiento de recuperacion y purificacion de benceno
FR792137A FR1221539A (fr) 1958-04-15 1959-04-15 Procédé de récupération et de purification du benzène
GB12817/59A GB916597A (en) 1958-04-15 1959-04-15 Process of recovering and purifying benzene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US728620A US2951886A (en) 1958-04-15 1958-04-15 Recovery and purification of benzene

Publications (1)

Publication Number Publication Date
US2951886A true US2951886A (en) 1960-09-06

Family

ID=24927590

Family Applications (1)

Application Number Title Priority Date Filing Date
US728620A Expired - Lifetime US2951886A (en) 1958-04-15 1958-04-15 Recovery and purification of benzene

Country Status (7)

Country Link
US (1) US2951886A (da)
BE (1) BE577729A (da)
DE (1) DE1270017B (da)
ES (1) ES248649A1 (da)
FR (1) FR1221539A (da)
GB (1) GB916597A (da)
NL (1) NL113125C (da)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055956A (en) * 1959-10-05 1962-09-25 Ashland Oil Inc Process for the separation of naphthalene
US3081259A (en) * 1963-03-12 Coke oven light oil purification
US3207802A (en) * 1960-12-14 1965-09-21 Air Prod & Chem Purification of coke-oven light oil
US3213151A (en) * 1962-07-27 1965-10-19 Phillips Petroleum Co Recovery of hydrogen from gaseous mixtures and improved hydrogenation process
US3284522A (en) * 1964-04-20 1966-11-08 Air Prod & Chem Cyclohexane production
US3285986A (en) * 1962-03-12 1966-11-15 Phillips Petroleum Co Separation process
EP0098538A2 (en) * 1982-07-06 1984-01-18 Air Products And Chemicals, Inc. Process for the hydrodealkylation of alkyl-aromatic hydrocarbons, process for the hydrodesulfurization of a hydrocarbon gas stream, and catalyst therefor
US4451687A (en) * 1982-07-06 1984-05-29 Air Products And Chemicals, Inc. Catalyst for the hydrodealkylation of alkylaromatic compounds

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB667145A (en) * 1949-10-26 1952-02-27 Peter William Reynolds Improvements in and relating to the production of alumina
US2705733A (en) * 1950-05-20 1955-04-05 Basf Ag Purification of crude benzene
US2734929A (en) * 1956-02-14 Dealkylation of hydrocarbons
US2773917A (en) * 1952-09-16 1956-12-11 Socony Mobil Oil Co Demethylation over chromia or molybdena catalysts
US2780661A (en) * 1951-08-15 1957-02-05 Exxon Research Engineering Co Reforming followed by hydrodealkylation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2402854A (en) * 1940-06-13 1946-06-25 Universal Oil Prod Co Hydrocarbon conversion
US2774801A (en) * 1952-09-16 1956-12-18 Socony Mobil Oil Co Inc Conversion of methylnaphthalenes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734929A (en) * 1956-02-14 Dealkylation of hydrocarbons
GB667145A (en) * 1949-10-26 1952-02-27 Peter William Reynolds Improvements in and relating to the production of alumina
US2705733A (en) * 1950-05-20 1955-04-05 Basf Ag Purification of crude benzene
US2780661A (en) * 1951-08-15 1957-02-05 Exxon Research Engineering Co Reforming followed by hydrodealkylation
US2773917A (en) * 1952-09-16 1956-12-11 Socony Mobil Oil Co Demethylation over chromia or molybdena catalysts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081259A (en) * 1963-03-12 Coke oven light oil purification
US3055956A (en) * 1959-10-05 1962-09-25 Ashland Oil Inc Process for the separation of naphthalene
US3207802A (en) * 1960-12-14 1965-09-21 Air Prod & Chem Purification of coke-oven light oil
US3285986A (en) * 1962-03-12 1966-11-15 Phillips Petroleum Co Separation process
US3213151A (en) * 1962-07-27 1965-10-19 Phillips Petroleum Co Recovery of hydrogen from gaseous mixtures and improved hydrogenation process
US3284522A (en) * 1964-04-20 1966-11-08 Air Prod & Chem Cyclohexane production
EP0098538A2 (en) * 1982-07-06 1984-01-18 Air Products And Chemicals, Inc. Process for the hydrodealkylation of alkyl-aromatic hydrocarbons, process for the hydrodesulfurization of a hydrocarbon gas stream, and catalyst therefor
US4436836A (en) 1982-07-06 1984-03-13 Air Products And Chemicals, Inc. Catalyst for the hydrodealkylation of alkylaromatic compounds
US4451687A (en) * 1982-07-06 1984-05-29 Air Products And Chemicals, Inc. Catalyst for the hydrodealkylation of alkylaromatic compounds
EP0098538A3 (en) * 1982-07-06 1984-06-06 Air Products And Chemicals, Inc. Process for the hydrodealkylation of alkyl-aromatic hydrocarbons, process for the hydrodesulfurization of a hydrocarbon gas stream, and catalyst therefor

Also Published As

Publication number Publication date
NL113125C (da)
ES248649A1 (es) 1959-09-16
FR1221539A (fr) 1960-06-02
DE1270017B (de) 1968-06-12
GB916597A (en) 1963-01-23
BE577729A (da)

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