EP0143486A3 - Method for on-line decoking of flame cracking reactors - Google Patents

Method for on-line decoking of flame cracking reactors Download PDF

Info

Publication number
EP0143486A3
EP0143486A3 EP84201553A EP84201553A EP0143486A3 EP 0143486 A3 EP0143486 A3 EP 0143486A3 EP 84201553 A EP84201553 A EP 84201553A EP 84201553 A EP84201553 A EP 84201553A EP 0143486 A3 EP0143486 A3 EP 0143486A3
Authority
EP
European Patent Office
Prior art keywords
decoking
cracking reactors
flame
line decoking
line
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.)
Withdrawn
Application number
EP84201553A
Other languages
German (de)
French (fr)
Other versions
EP0143486A2 (en
Inventor
Akinobu Fukuhara
Gerard Roland Kamm
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of EP0143486A2 publication Critical patent/EP0143486A2/en
Publication of EP0143486A3 publication Critical patent/EP0143486A3/en
Withdrawn legal-status Critical Current

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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
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
    • C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
    • C10G9/38—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours produced by partial combustion of the material to be cracked or by combustion of another hydrocarbon

Landscapes

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

Abstract

This invention relates to a method for on-line decoking of flame-cracking reactors whereby decoking is achieved without interruption of the normal operation of such reac­ tors and without the necessity to chance feed equipment and/or disassemble reactor components. While maintaining thetemperature of the effluent at 1000 °C to 2O00 °C, the flow of the hydrocarbon feedstock in the reactor is periodically stopped for a time sufficient to reduce the carbon deposits to an acceptable level.
EP84201553A 1983-10-31 1984-10-30 Method for on-line decoking of flame cracking reactors Withdrawn EP0143486A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54701683A 1983-10-31 1983-10-31
US547016 1983-10-31

Publications (2)

Publication Number Publication Date
EP0143486A2 EP0143486A2 (en) 1985-06-05
EP0143486A3 true EP0143486A3 (en) 1986-04-16

Family

ID=24183003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201553A Withdrawn EP0143486A3 (en) 1983-10-31 1984-10-30 Method for on-line decoking of flame cracking reactors

Country Status (3)

Country Link
EP (1) EP0143486A3 (en)
JP (1) JPS60112886A (en)
CA (1) CA1232856A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743007B1 (en) * 1995-12-27 1998-01-30 Inst Francais Du Petrole CONTINUOUS PYROLYSIS AND DECOKING PROCESS APPLICABLE IN PARTICULAR TO THE PRODUCTION OF ACETYLENE
US10968399B2 (en) 2017-04-07 2021-04-06 Citgo Petroleum Corporation Online coke removal in a heater pass

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365387A (en) * 1966-04-29 1968-01-23 Exxon Research Engineering Co Off-stream decoking of a minor portion of on-stream thermal cracking tubes
FR2020790A1 (en) * 1968-10-16 1970-07-17 Exxon Research Engineering Co
DE2028913A1 (en) * 1969-07-28 1971-02-11 Esso Research and Engineering Co Linden, NJ (V StA) Process for the thermal cracking of hydrocarbons
FR2393844A1 (en) * 1977-06-07 1979-01-05 Union Carbide Corp THERMAL HYDROCARBON CRACKING PROCESS
EP0021167A1 (en) * 1979-06-08 1981-01-07 Linde Aktiengesellschaft Process and apparatus for the thermal decoking of an apparatus for the thermal cracking of hydrocarbons such apparatus comprising a cracking zone followed by a cooler for the product gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365387A (en) * 1966-04-29 1968-01-23 Exxon Research Engineering Co Off-stream decoking of a minor portion of on-stream thermal cracking tubes
FR2020790A1 (en) * 1968-10-16 1970-07-17 Exxon Research Engineering Co
DE2028913A1 (en) * 1969-07-28 1971-02-11 Esso Research and Engineering Co Linden, NJ (V StA) Process for the thermal cracking of hydrocarbons
FR2393844A1 (en) * 1977-06-07 1979-01-05 Union Carbide Corp THERMAL HYDROCARBON CRACKING PROCESS
EP0021167A1 (en) * 1979-06-08 1981-01-07 Linde Aktiengesellschaft Process and apparatus for the thermal decoking of an apparatus for the thermal cracking of hydrocarbons such apparatus comprising a cracking zone followed by a cooler for the product gas

Also Published As

Publication number Publication date
EP0143486A2 (en) 1985-06-05
CA1232856A (en) 1988-02-16
JPS60112886A (en) 1985-06-19

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Effective date: 19880206

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FUKUHARA, AKINOBU

Inventor name: KAMM, GERARD ROLAND