GB1306962A - Process of thermally cracking hydrocarbons with rapid decoking cycling - Google Patents

Process of thermally cracking hydrocarbons with rapid decoking cycling

Info

Publication number
GB1306962A
GB1306962A GB2289970A GB2289970A GB1306962A GB 1306962 A GB1306962 A GB 1306962A GB 2289970 A GB2289970 A GB 2289970A GB 2289970 A GB2289970 A GB 2289970A GB 1306962 A GB1306962 A GB 1306962A
Authority
GB
United Kingdom
Prior art keywords
tube
decoking
cracking
steam
tubes
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
GB2289970A
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
Esso 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
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1306962A publication Critical patent/GB1306962A/en
Expired 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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

1306962 Decoking cracking tubes ESSO RESEARCH & ENG CO 12 May 1970 [28 July 1969] 22899/70 Heading C5E In a process for steam-cracking hydrocarbons, e.g. to produce ethylene, propylene and butadiene, by passage through one or more tubes arranged in a cracking furnace, the problem of coke deposition is alleviated by periodically taking at least one tube off stream prior to the time at which the temperature drop across its coke deposit exceeds 50‹ F., passing a decoking feed through said tube for up to 12 minutes, and then returning said tube to on-stream operation. Suitably cyclic decoking is operated. Suitable decoking feeds include steam/hydrogen, steam/ oxygen and steam/sulphur-free C 2-6 paraffin, especially ethane. The effluent from the tube(s) being decoked is desirably mixed with the effluent from the on-stream tubes, and is of such temperature that additional cracking may take place within the effluent, particularly if oxygen is present. The process is particularly suited to the cracking of heavy feeds, e.g. vacuum gas oils, crudes and reduced crudes, though other feeds are mentioned. In the examples, a furnace having 12 tubes is cyclically decoked, the onstream time of each tube being 5¢ minutes and the off-stream time ¢ minute.
GB2289970A 1969-07-28 1970-05-12 Process of thermally cracking hydrocarbons with rapid decoking cycling Expired GB1306962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84552469A 1969-07-28 1969-07-28

Publications (1)

Publication Number Publication Date
GB1306962A true GB1306962A (en) 1973-02-14

Family

ID=25295423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2289970A Expired GB1306962A (en) 1969-07-28 1970-05-12 Process of thermally cracking hydrocarbons with rapid decoking cycling

Country Status (7)

Country Link
BE (1) BE753946A (en)
CA (1) CA933535A (en)
DE (1) DE2028913C3 (en)
FR (1) FR2053196B1 (en)
GB (1) GB1306962A (en)
NL (1) NL164087C (en)
SE (1) SE354668B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917787A (en) * 1983-10-31 1990-04-17 Union Carbide Chemicals And Plastics Company Inc. Method for on-line decoking of flame cracking reactors
NL1004705C2 (en) * 1995-12-05 1999-09-14 Aktsionernoe Obschestvo Zakryt Process for the production of small olefins.
WO2010005633A1 (en) * 2008-07-11 2010-01-14 Exxonmobil Chemical Patents Inc. Process for the on-stream decoking of a furnace for cracking a hydrocarbon feed
US7977524B2 (en) 2007-02-22 2011-07-12 Exxonmobil Chemical Patents Inc. Process for decoking a furnace for cracking a hydrocarbon feed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1232856A (en) * 1983-10-31 1988-02-16 Akinobu Fukuhara Method for on-line decoking of flame cracking reactors

Family Cites Families (1)

* 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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917787A (en) * 1983-10-31 1990-04-17 Union Carbide Chemicals And Plastics Company Inc. Method for on-line decoking of flame cracking reactors
NL1004705C2 (en) * 1995-12-05 1999-09-14 Aktsionernoe Obschestvo Zakryt Process for the production of small olefins.
US7977524B2 (en) 2007-02-22 2011-07-12 Exxonmobil Chemical Patents Inc. Process for decoking a furnace for cracking a hydrocarbon feed
WO2010005633A1 (en) * 2008-07-11 2010-01-14 Exxonmobil Chemical Patents Inc. Process for the on-stream decoking of a furnace for cracking a hydrocarbon feed
CN102083944A (en) * 2008-07-11 2011-06-01 埃克森美孚化学专利公司 Process for the on-stream decoking of a furnace for cracking a hydrocarbon feed
US8864977B2 (en) 2008-07-11 2014-10-21 Exxonmobil Chemical Patents Inc. Process for the on-stream decoking of a furnace for cracking a hydrocarbon feed
CN102083944B (en) * 2008-07-11 2016-05-04 埃克森美孚化学专利公司 The method of the on-stream decoking of the stove of cracking hydrocarbon feed

Also Published As

Publication number Publication date
FR2053196B1 (en) 1974-06-14
FR2053196A1 (en) 1971-04-16
CA933535A (en) 1973-09-11
NL164087C (en) 1980-11-17
DE2028913A1 (en) 1971-02-11
DE2028913C3 (en) 1982-04-15
NL7009272A (en) 1971-02-01
DE2028913B2 (en) 1981-05-14
SE354668B (en) 1973-03-19
BE753946A (en) 1971-01-27

Similar Documents

Publication Publication Date Title
NL172078C (en) METHOD FOR THERMAL CRACKING OF A HYDROCARBON IN THE PRESENCE OF HYDROGEN.
ES381102A1 (en) Fluid catalytic cracking process with a segregated feed charged to separate reactors
US2362621A (en) Conversion of hydrocarbons
US2929775A (en) Hydrocarbon conversion process with substantial prevention of coke formation during the reaction
US2866744A (en) Method of reforming hydrocarbons used in platinum catalyst in a plurality of separate reaction zones
ES395549A1 (en) Catalytic cracking of naphthas
US3557241A (en) Decoking of onstream thermal cracking tubes with h20 and h2
GB1306962A (en) Process of thermally cracking hydrocarbons with rapid decoking cycling
US2322366A (en) Hydrocarbon conversion process
US2419517A (en) Conversion of hydrocarbons
US2251571A (en) Catalytic treatment of hydrocarbons
US2963416A (en) Coke production from petroleum stocks
US2303076A (en) Treatment of hydrocarbons
US2424636A (en) Catalytic dehydrogenation of hydrocarbons
US2399261A (en) Production of aviation fuel
US2031600A (en) Control of catalytic reactions
US2959534A (en) Process and apparatus for the destructive hydrogenation of hydrocarbon oils in two stages
US2902436A (en) Hydrogenative conversion of hydrocarbons
US2418534A (en) Hydrocarbon conversion process
US2342080A (en) Conversion of hydrocarbons
GB998934A (en) Method of operating a hydrocracking process to increase on-stream life of catalyst and improve product quality
US2197872A (en) Treatment of hydrocarbons
US2743214A (en) "k" factor control of reformate yield
US2390244A (en) Catalytic conversion of hydrocarbons
US2565498A (en) Hydrocarbon conversion

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee