ES8105025A1 - Fluidized catalytic cracking with reduced dilute-phase temperature and/or composition gradients in the regenerator. - Google Patents

Fluidized catalytic cracking with reduced dilute-phase temperature and/or composition gradients in the regenerator.

Info

Publication number
ES8105025A1
ES8105025A1 ES493507A ES493507A ES8105025A1 ES 8105025 A1 ES8105025 A1 ES 8105025A1 ES 493507 A ES493507 A ES 493507A ES 493507 A ES493507 A ES 493507A ES 8105025 A1 ES8105025 A1 ES 8105025A1
Authority
ES
Spain
Prior art keywords
regenerator
phase
dilute
bed
dense
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
ES493507A
Other languages
Spanish (es)
Other versions
ES493507A0 (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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering 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
Priority claimed from US06/058,490 external-priority patent/US4243517A/en
Priority claimed from US06/058,491 external-priority patent/US4243518A/en
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of ES8105025A1 publication Critical patent/ES8105025A1/en
Publication of ES493507A0 publication Critical patent/ES493507A0/en
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
    • 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
    • C10G11/187—Controlling or regulating
    • 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)
  • Catalysts (AREA)

Abstract

The spent catalyst from a fluidized catalytic cracker (10) contaminated with coke and volatile hydrocarbons is circulated via a transfer line (22, 24) to a regenerator (26) wherein it is contacted in a dense phase fluidized bed with a regeneration gas (from 36). A minor proportion (e.g. from 2 to 20%) of the regeneration gas is employed to combust volatile hydrocarbons in the vicinity of the region where spent catalyst enters the dense phase bed (30) so that the regeneration in the dense bed is substantially uninfluenced by the presence of volatile hydrocarbons and gradients of temperature and/or composition in the dilute regenerator phase (34) are mitigated or eliminated thereby reducing or eliminating undesirable afterburning in the dilute phase (34). The minor proportion of regeneration gas is passed (from line 40) either into the transfer line (22,24) close to its end within the regenerator (26) or, in another embodiment, directly into a region of the dense bed (30) close to the end of the transfer line.
ES493507A 1979-07-18 1980-07-18 IMPROVED FLUIDIZED CATALYTIC CRACHING PROCEDURE Granted ES493507A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/058,490 US4243517A (en) 1979-07-18 1979-07-18 Internal method for reducing transverse oxygen gradients in FCCU regeneration
US06/058,491 US4243518A (en) 1979-07-18 1979-07-18 External method for reducing transverse oxygen gradients in FCCU regeneration

Publications (2)

Publication Number Publication Date
ES8105025A1 true ES8105025A1 (en) 1981-05-16
ES493507A0 ES493507A0 (en) 1981-05-16

Family

ID=26737667

Family Applications (1)

Application Number Title Priority Date Filing Date
ES493507A Granted ES493507A0 (en) 1979-07-18 1980-07-18 IMPROVED FLUIDIZED CATALYTIC CRACHING PROCEDURE

Country Status (4)

Country Link
EP (1) EP0023402B1 (en)
CA (1) CA1157796A (en)
DE (1) DE3067687D1 (en)
ES (1) ES493507A0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515680A1 (en) * 1981-10-30 1983-05-06 Texaco Development Corp Controlled catalyst regeneration in FCC regenerators - by adjustment of catalyst bed level in riser reactor
IL88582A (en) * 1987-12-08 1993-03-15 Tosoh Corp 4,4)-bis (phthalimido) diphenyl sulfone compounds, processes for their production and flame retardant polymer compositions containing them
FR2624877B1 (en) * 1987-12-22 1992-01-10 Inst Francais Du Petrole METHOD AND DEVICE FOR THE CATALYTIC CRACKING OF HEAVY LOADS COMPRISING A SECOND STRIPPING IN A FLUID BED
FR2627187B1 (en) * 1988-02-15 1993-01-22 Inst Francais Du Petrole FLUID CRACKING PROCESS OF A HYDROCARBON LOAD
GB2250027A (en) * 1990-07-02 1992-05-27 Exxon Research Engineering Co Process and apparatus for the simultaneous production of olefins and catalytically cracked hydrocarbon products

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994659A (en) * 1959-10-16 1961-08-01 Kellogg M W Co Method and apparatus for conversion of hydrocarbons
US3135700A (en) * 1959-12-01 1964-06-02 Exxon Research Engineering Co Method and apparatus for catalyst regeneration
US3527694A (en) * 1968-12-09 1970-09-08 Exxon Research Engineering Co Fluid solids system
US4062761A (en) * 1975-11-28 1977-12-13 Exxon Research And Engineering Company Method for varying the catalyst circulation rate in a fluid catalytic cracking process
US4035153A (en) * 1976-05-07 1977-07-12 Texaco Inc. Fluidized cracking catalyst regeneration apparatus
US4062759A (en) * 1976-05-07 1977-12-13 Texaco Inc. Fluidized catalytic cracking regeneration process

Also Published As

Publication number Publication date
EP0023402A1 (en) 1981-02-04
ES493507A0 (en) 1981-05-16
EP0023402B1 (en) 1984-05-02
DE3067687D1 (en) 1984-06-07
CA1157796A (en) 1983-11-29

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020506