FR2331609A1 - Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate - Google Patents

Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate

Info

Publication number
FR2331609A1
FR2331609A1 FR7534589A FR7534589A FR2331609A1 FR 2331609 A1 FR2331609 A1 FR 2331609A1 FR 7534589 A FR7534589 A FR 7534589A FR 7534589 A FR7534589 A FR 7534589A FR 2331609 A1 FR2331609 A1 FR 2331609A1
Authority
FR
France
Prior art keywords
coke content
oxidn
flow rate
value
pref
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
FR7534589A
Other languages
French (fr)
Other versions
FR2331609B1 (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.)
Honeywell UOP LLC
Original Assignee
UOP LLC
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 UOP LLC filed Critical UOP LLC
Priority to FR7534589A priority Critical patent/FR2331609A1/en
Publication of FR2331609A1 publication Critical patent/FR2331609A1/en
Application granted granted Critical
Publication of FR2331609B1 publication Critical patent/FR2331609B1/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
    • 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
    • C10G11/182—Regeneration
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/90—Regeneration or reactivation
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/40—Ethylene production

Landscapes

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

Abstract

Initiating the oxidn. of CO to CO2 in a dense-phase catalyst bed in the regeneration zone of a fluid catalytic cracking (FCC) unit comprises (a) contacting the spent catalyst with fresh regeneration gas (pref. air) to reduce the coke content to a 1st value (pref. 0.1-0.6 wt.%) and produce a CO-contg. regeneration gas; (b) increasing the coke content of the catalyst to a value 0.1-0.5 wt. % higher than the 1st value (pref. 0.2-0.8 wt. %) and maintaining this coke content until a constant dense-bed temp. is reached; and (c) increasing the flow rate of the fresh regeneration gas to reduce the coke content of the catalyst to a value below the 1st value (pref. 0.01-0.09 wt. %) and to oxidise CO to CO2. Increasing the coke content in step (b) increases the supply of fuel which, when the air flow rate is increased, increases the temp. in the dense phase to a level (677-760 degrees C) at which CO oxidn. is initiated; once initiated, the exothermic oxidn. proceeds spontaneously. This prevents post-combustion in the dilute phase, allows part of the heat of combustion to be recovered, and prevents CO emission into the atmosphere.
FR7534589A 1975-11-13 1975-11-13 Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate Granted FR2331609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7534589A FR2331609A1 (en) 1975-11-13 1975-11-13 Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7534589A FR2331609A1 (en) 1975-11-13 1975-11-13 Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate

Publications (2)

Publication Number Publication Date
FR2331609A1 true FR2331609A1 (en) 1977-06-10
FR2331609B1 FR2331609B1 (en) 1979-06-01

Family

ID=9162340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534589A Granted FR2331609A1 (en) 1975-11-13 1975-11-13 Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate

Country Status (1)

Country Link
FR (1) FR2331609A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272830A2 (en) * 1986-12-19 1988-06-29 Union Oil Company Of California Alkylation catalysts and processes
CN112533700A (en) * 2018-08-10 2021-03-19 环球油品有限责任公司 Method for controlling partial regeneration of spent catalyst

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186293A1 (en) * 1972-05-30 1974-01-11 Universal Oil Prod Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186293A1 (en) * 1972-05-30 1974-01-11 Universal Oil Prod Co

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272830A2 (en) * 1986-12-19 1988-06-29 Union Oil Company Of California Alkylation catalysts and processes
EP0272830A3 (en) * 1986-12-19 1988-08-31 Union Oil Company Of California Alkylation catalysts and processes
CN112533700A (en) * 2018-08-10 2021-03-19 环球油品有限责任公司 Method for controlling partial regeneration of spent catalyst

Also Published As

Publication number Publication date
FR2331609B1 (en) 1979-06-01

Similar Documents

Publication Publication Date Title
GB1536158A (en) Method of regenerating a cracking catalyst with substantially complete combustion of carbon monoxide
US2756121A (en) Oxidation of waste gases
ES409156A1 (en) Fluid catalyst regeneration process with substantially complete combustion of carbon monoxide
FR2331609A1 (en) Initiation of carbon monoxide oxidn. - in fluid catalytic cracking regenerators by increase of coke content of regenerated catalyst and then of air flow rate
GB1439532A (en) Dense bed after burning a catalystic regeneration zone
SE7905642L (en) ENERGY RECOVERY FROM REGENERATION GAS
ES458567A1 (en) Fluidized cracking catalyst regeneration process and apparatus
US3609097A (en) Catalyst regeneration
GB1518530A (en) Method of initiating essentially complete oxidation of co to co2 in a spent-catalyst regenerating zone
GB1439531A (en) Fluidized catalyst regeneration process
ES455524A1 (en) Method of regenerating coke-contaminated catalyst with simmultaneous combustion of carbon monoxide
SU581845A3 (en) Method of regenerating zeolite-containing catalyst of hydrocarbon cracking
ES442834A1 (en) A method for initiating essentially complete oxidation of co to co2 in a bed of dessert phase catalyst. (Machine-translation by Google Translate, not legally binding)
SU427726A1 (en) METHOD FOR REGULATING CATALYSTS FOR HYDRO-CRACKING
ES450414A1 (en) Process for regenerating a coke-contaminated fluid catalytic cracking catalyst and catalytic conversion of co to co
SU541416A3 (en) Method for regeneration of zeolite-containing carbon cracking catalyst
ES451916A2 (en) Catalyst regeneration by coke oxidation in a dense phase bed and catalysed carbon monoxide conversion in a dilute phase transport riser
GB729806A (en) Improvements in or relating to a method of controlling the water content of a regenerated finely-divided catalyst
IT1077740B (en) Regenerating catalyst contaminated by coke, esp. cracking catalyst - with controlled oxidn. of carbon monoxide, by oxidn. in presence of activator, esp. noble metal
ES443768A1 (en) Regeneration of cracking catalyst
US2275184A (en) Reactivation of contact masses
FR2121632A1 (en) Catalytic exhaust gas treatment - to remove nitrogen oxides using a rigid oxidesed steel catalysts
GB979720A (en) Process for controlling the production of hydrogen from a hydrocarbon
CA1163981A (en) Three-stage catalyst regeneration
ES481992A1 (en) Procedure for the regeneration of the spented catalytic from a fluidized caralitic craqueo process. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
ST Notification of lapse