GB1306962A – Process of thermally cracking hydrocarbons with rapid decoking cycling
– Google Patents
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
1969-07-28
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.)
1969-07-28
Filing date
1970-05-12
Publication date
1973-02-14
1970-05-12
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering Co
filed
Critical
Exxon Research and Engineering Co
1973-02-14
Publication of GB1306962A
publication
Critical
patent/GB1306962A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
1970
1970-05-06
CA
CA082045A
patent/CA933535A/en
not_active
Expired
1970-05-12
GB
GB2289970A
patent/GB1306962A/en
not_active
Expired
1970-06-12
DE
DE19702028913
patent/DE2028913C3/en
not_active
Expired
1970-06-24
NL
NL7009272A
patent/NL164087C/en
not_active
IP Right Cessation
1970-07-21
FR
FR7026915A
patent/FR2053196B1/fr
not_active
Expired
1970-07-27
BE
BE753946D
patent/BE753946A/en
not_active
IP Right Cessation
1970-07-27
SE
SE1032870A
patent/SE354668B/xx
unknown
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
DE2028913C3
(en)
1982-04-15
NL164087C
(en)
1980-11-17
BE753946A
(en)
1971-01-27
DE2028913A1
(en)
1971-02-11
CA933535A
(en)
1973-09-11
NL7009272A
(en)
1971-02-01
SE354668B
(en)
1973-03-19
FR2053196B1
(en)
1974-06-14
DE2028913B2
(en)
1981-05-14
FR2053196A1
(en)
1971-04-16
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Legal Events
Date
Code
Title
Description
1973-06-27
PS
Patent sealed
1986-01-29
PCNP
Patent ceased through non-payment of renewal fee
