ES343351A1 - Method of removing deposited carbon from a thermal cracking apparatus - Google Patents

Method of removing deposited carbon from a thermal cracking apparatus

Info

Publication number
ES343351A1
ES343351A1 ES343351A ES343351A ES343351A1 ES 343351 A1 ES343351 A1 ES 343351A1 ES 343351 A ES343351 A ES 343351A ES 343351 A ES343351 A ES 343351A ES 343351 A1 ES343351 A1 ES 343351A1
Authority
ES
Spain
Prior art keywords
thermal cracking
deposited carbon
cracking apparatus
furnace
removing deposited
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
ES343351A
Other languages
Spanish (es)
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.)
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu Petrochemical Co Ltd
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 Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Publication of ES343351A1 publication Critical patent/ES343351A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • 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
    • B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
    • B01J12/005—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor carried out at high temperatures, e.g. by pyrolysis
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • B01J19/0026—Avoiding carbon deposits
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/242—Tubular reactors in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
    • B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
    • 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
    • C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
    • C10G9/16—Preventing or removing incrustation
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00162—Controlling or regulating processes controlling the pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Prevention Of Fouling (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A thermal cracking apparatus for manufacturing ethylene from naphtha which comprises a pyrolysis furnace 1 with internal piping 2 and a transfer line exchanger 5 is decoked by passing an oxidizing gas through the heated furnace to oxidize deposited carbon from the apparatus whilst the combustion products are passed out through the branch pipe 8. The gas passed into the furnace at the start of the decoking operation suitably comprises 100% steam and subsequently comprises a proportion of air which is increased up to 100%.
ES343351A 1966-07-25 1967-07-22 Method of removing deposited carbon from a thermal cracking apparatus Expired ES343351A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP41048307A JPS503268B1 (en) 1966-07-25 1966-07-25

Publications (1)

Publication Number Publication Date
ES343351A1 true ES343351A1 (en) 1968-09-01

Family

ID=12799750

Family Applications (1)

Application Number Title Priority Date Filing Date
ES343351A Expired ES343351A1 (en) 1966-07-25 1967-07-22 Method of removing deposited carbon from a thermal cracking apparatus

Country Status (5)

Country Link
US (1) US3532542A (en)
JP (1) JPS503268B1 (en)
ES (1) ES343351A1 (en)
GB (1) GB1186614A (en)
NL (1) NL6709992A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964976A (en) * 1974-06-28 1976-06-22 Allied Chemical Corporation Process for cleaning coke oven gas offtakes
DE3060219D1 (en) * 1979-06-08 1982-04-01 Linde Ag 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
US4377420A (en) * 1980-03-06 1983-03-22 United Technologies Corporation Removal of carbonaceous material from gas turbine cavities
DE3010000A1 (en) * 1980-03-15 1981-09-24 Basf Ag, 6700 Ludwigshafen METHOD FOR THERMAL DECOKING OF COLD GAS COOLERS
US5101741A (en) * 1991-05-10 1992-04-07 Jwp Air Technologies Flow line bake-out process for incinerator
DE4334827C1 (en) * 1993-10-08 1994-10-06 Mannesmann Ag Process for decreasing the coking of heat exchange surfaces
CA2292915C (en) 1997-06-05 2001-08-21 Atf Resources, Inc. Method and apparatus for removing and suppressing coke formation during pyrolysis
FR2837273B1 (en) * 2002-03-15 2004-10-22 Inst Francais Du Petrole METHOD FOR AT LEAST PARTIAL REMOVAL OF CARBON DEPOSITS IN A HEAT EXCHANGER
US7625480B2 (en) * 2006-05-11 2009-12-01 Exxonmobil Chemical Patents Inc. Pyrolysis furnace feed
DE102008010654A1 (en) * 2008-02-22 2009-08-27 Linde Ag Method and device for switching shut-off devices to cracking furnaces
CA3033604C (en) * 2019-02-12 2022-12-13 Michael KOSELEK Decoking process
CN114289420B (en) * 2022-02-21 2023-09-01 常州二维碳素科技股份有限公司 Method for removing carbon deposition on inner wall of air inlet pipe in CVD (chemical vapor deposition) grown graphene powder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470359A (en) * 1917-04-17 1923-10-09 Gasolene Corp Process of removing carbon from metal pipes
US1919672A (en) * 1930-03-20 1933-07-25 Sun Oil Co Process for cooling and safeguarding oil cracking apparatus
US2289350A (en) * 1937-12-29 1942-07-14 Texas Co Method of reconditioning furnace tubes
US2289351A (en) * 1939-04-06 1942-07-14 Texas Co Method of cleaning heater tubes
US2577254A (en) * 1947-01-20 1951-12-04 Phillips Petroleum Co Removing carbon and carbonaceous deposits from heat exchanger equipment
US2537079A (en) * 1948-06-04 1951-01-09 Standard Oil Dev Co Prevention of coke formation in pyrolysis of acetone
US2671741A (en) * 1950-02-23 1954-03-09 Texas Co Decoking and cleaning tubular heaters
US3054700A (en) * 1959-10-21 1962-09-18 British Petroleum Co Method of cleaning heat exchangers

Also Published As

Publication number Publication date
GB1186614A (en) 1970-04-02
NL6709992A (en) 1968-01-26
JPS503268B1 (en) 1975-02-01
US3532542A (en) 1970-10-06

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