[go: up one dir, main page]

FR2378847A1 - Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages - Google Patents

Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages

Info

Publication number
FR2378847A1
FR2378847A1 FR7702511A FR7702511A FR2378847A1 FR 2378847 A1 FR2378847 A1 FR 2378847A1 FR 7702511 A FR7702511 A FR 7702511A FR 7702511 A FR7702511 A FR 7702511A FR 2378847 A1 FR2378847 A1 FR 2378847A1
Authority
FR
France
Prior art keywords
catalyst
degrees
current
effluent
gasoline
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.)
Granted
Application number
FR7702511A
Other languages
French (fr)
Other versions
FR2378847B1 (en
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.)
MELIK AKHNAZAROV TALYAT
Original Assignee
MELIK AKHNAZAROV TALYAT
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 MELIK AKHNAZAROV TALYAT filed Critical MELIK AKHNAZAROV TALYAT
Priority to FR7702511A priority Critical patent/FR2378847A1/en
Publication of FR2378847A1 publication Critical patent/FR2378847A1/en
Application granted granted Critical
Publication of FR2378847B1 publication Critical patent/FR2378847B1/fr
Granted 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
    • C10G51/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only
    • C10G51/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural serial stages only
    • C10G51/026—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural serial stages only only catalytic cracking steps
    • 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
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
    • C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Two-stage catalytic cracking process comprises (a) passing a suspension of fine catalyst particles in a gas-vapour mixt. through a cocurrent reaction zone operated at 420-560 degrees C and 1.1-3.0 atm (abs.); (b) separating the catalyst from the effluent; (c) feeding the entire effluent into a countercurrent reaction zone comprising fluidised beds of regenerated catalyst, operated at 420-560 degrees C. and 1.1-3.0 atm. (abs.). Process further comprises (d) sepg. the catalyst from the effluent; (e) regenerating the catalyst sepd. in steps (b) and (d); and (f) transporting the regenerated gas to step (c) in a carrier gas comprising a petroleum fraction boiling below 350 degrees C (pref. below 240 degrees C) and/or steam. Compared with one-stage cracking, the gasoline and C3-4 yield is increased by 15-20%, the gasoline octane no. is increased by 2.0-2.5 units, and the olefin and S content of the gasoline is reduced by 20-50%.
FR7702511A 1977-01-28 1977-01-28 Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages Granted FR2378847A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7702511A FR2378847A1 (en) 1977-01-28 1977-01-28 Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702511A FR2378847A1 (en) 1977-01-28 1977-01-28 Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages

Publications (2)

Publication Number Publication Date
FR2378847A1 true FR2378847A1 (en) 1978-08-25
FR2378847B1 FR2378847B1 (en) 1981-10-02

Family

ID=9186052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702511A Granted FR2378847A1 (en) 1977-01-28 1977-01-28 Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages

Country Status (1)

Country Link
FR (1) FR2378847A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142900A2 (en) * 1983-11-22 1985-05-29 Shell Internationale Researchmaatschappij B.V. Dual riser fluid catalytic cracking process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142900A2 (en) * 1983-11-22 1985-05-29 Shell Internationale Researchmaatschappij B.V. Dual riser fluid catalytic cracking process
EP0142900A3 (en) * 1983-11-22 1986-01-22 Shell Internationale Research Maatschappij B.V. Dual riser fluid catalytic cracking process

Also Published As

Publication number Publication date
FR2378847B1 (en) 1981-10-02

Similar Documents

Publication Publication Date Title
US4388218A (en) Regeneration of cracking catalyst in two successive zones
US2417164A (en) Hydrocarbon synthesis
US4325833A (en) Three-stage catalyst regeneration
US3844973A (en) Fluidized catalyst regeneration by oxidation in a dense phase bed and a dilute phase transport riser
US6217830B1 (en) Methods and apparatus for separating Fischer-Tropsch catalysts from liquid hydrocarbon product
US3338030A (en) Depressuring technique for deltap adsorption process
GB1266068A (en)
GB1266070A (en)
GB1329025A (en) Process and apparatus for contacting a liquid with solid particles
GB1094117A (en) Separation process
US4504379A (en) Passivation of metal contaminants in cat cracking
EP0154676A2 (en) Use of dual-function lift gas in a FCC reactor riser
US4163710A (en) Cracking process employing a combination of reductive and oxidative washes
CA2068115A1 (en) Improved gas conversion process
JPS5827837B2 (en) Processing method for sulfur-containing heavy oil
US2905622A (en) Production of fuel gas and liquid hydrocarbon fuels
US2583611A (en) Method for the synthesis of hydrocarbons in the presence of a solid adsorbent
US3919115A (en) Fluidized catalyst regeneration process
US2481226A (en) Two-stage reduction process for producing metal catalyst
GB1266069A (en)
US2402875A (en) Catalytic conversion process
US2411208A (en) Purification of gases
US2345128A (en) Conversion of hydrocarbons
FR2378847A1 (en) Two=stage catalytic hydrocarbon cracking - with co-current and counter current reaction stages
US2483512A (en) Hydrocarbon synthesis process catalyzed by oxidized and reduced iron

Legal Events

Date Code Title Description
ST Notification of lapse