GB1176972A – Improved Dehydrogenation Process
– Google Patents
GB1176972A – Improved Dehydrogenation Process
– Google Patents
Improved Dehydrogenation Process
Info
Publication number
GB1176972A
GB1176972A
GB22640/67A
GB2264067A
GB1176972A
GB 1176972 A
GB1176972 A
GB 1176972A
GB 22640/67 A
GB22640/67 A
GB 22640/67A
GB 2264067 A
GB2264067 A
GB 2264067A
GB 1176972 A
GB1176972 A
GB 1176972A
Authority
GB
United Kingdom
Prior art keywords
aromatic hydrocarbon
heated
dehydrogenation
alkyl
dehydrogenating
Prior art date
1966-05-23
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
GB22640/67A
Inventor
Dennis John Ward
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products 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.)
1966-05-23
Filing date
1967-05-16
Publication date
1970-01-07
1967-05-16
Application filed by Universal Oil Products Co
filed
Critical
Universal Oil Products Co
1970-01-07
Publication of GB1176972A
publication
Critical
patent/GB1176972A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
C07C5/333—Catalytic processes
Abstract
1,176,972. Dehydrogenating alkyl aromatic compounds. UNIVERSAL OIL PRODUCTS CO. 16 May, 1967 [23 May, 1966], No. 22640/67. Heading C5E. A process for dehydrogenating an alkyl aromatic hydrocarbon having at least two carbon atoms in the alkyl group comprises mixing with the hydrocarbon feed, steam and a monomethyl-substituted aromatic hydrocarbon, contacting the mixture with a dehydrogenation catalyst at dehydrogenating conditions and separating and recovering the monomethyl substituted aromatic hydrocarbon and the resulting alkenyl aromatic hydrocarbon product from the reaction zone effluent. The alkyl aromatic hydrocarbon may be heated to less than 500 C., the steam and methyl aromatic hydrocarbon may be mixed and heated separately from the alkyl aromatic hydrocarbon to less than 500 C., and the pre-heated streams combined and heated to 566-704 C. and charged to the dehydrogenation zone. A preferred embodiment is a two-stage dehydrogenation process in which the mono-methyl substituted aromatic hydrocarbon preheated to 566- 704 C. is employed only in the second reaction zone. Examples describe the dehydrogenation of ethylbenzene to styrene in the presence of toluene using an iron oxide catalyst.
GB22640/67A
1966-05-23
1967-05-16
Improved Dehydrogenation Process
Expired
GB1176972A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US552290A
US3409689A
(en)
1966-05-23
1966-05-23
Dehydrogenation process
Publications (1)
Publication Number
Publication Date
GB1176972A
true
GB1176972A
(en)
1970-01-07
Family
ID=24204712
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB22640/67A
Expired
GB1176972A
(en)
1966-05-23
1967-05-16
Improved Dehydrogenation Process
Country Status (4)
Country
Link
US
(1)
US3409689A
(en)
DE
(1)
DE1643120B2
(en)
GB
(1)
GB1176972A
(en)
NL
(1)
NL6707138A
(en)
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3515766A
(en)
*
1968-05-21
1970-06-02
Universal Oil Prod Co
Catalytic conversion process
US3515764A
(en)
*
1968-05-21
1970-06-02
Universal Oil Prod Co
Catalytic conversion process
US3515765A
(en)
*
1968-05-21
1970-06-02
Universal Oil Prod Co
Catalytic conversion process
US4113787A
(en)
*
1977-01-10
1978-09-12
Uop Inc.
Aromatic hydrocarbon dehydrogenation process
US4338476A
(en)
*
1977-06-27
1982-07-06
Uop Inc.
Alkylaromatic hydrocarbon dehydrogenation process
US4479025A
(en)
*
1982-11-22
1984-10-23
Uop Inc.
Alkylaromatic hydrocarbon dehydrogenation process
US4599471A
(en)
*
1985-09-16
1986-07-08
Uop Inc.
Method for oxygen addition to oxidative reheat zone of hydrocarbon dehydrogenation process
US4739124A
(en)
*
1985-09-16
1988-04-19
Uop Inc.
Method for oxygen addition to oxidative reheat zone of ethane dehydrogenation process
US4628136A
(en)
*
1985-12-17
1986-12-09
Lummus Crest, Inc.
Dehydrogenation process for production of styrene from ethylbenzene comprising low temperature heat recovery and modification of the ethylbenzene-steam feed therewith
US4806624A
(en)
*
1987-06-17
1989-02-21
Uop Inc.
Dehydrogenation of dehydrogenatable hydrocarbons
US4778941A
(en)
*
1988-01-19
1988-10-18
Uop Inc.
Eduction of intermediate effluent in dehydrogenation process having oxidative reheat
US4827066A
(en)
*
1988-05-23
1989-05-02
Uop Inc.
Dehydrogenation of dehydrogenatable hydrocarbons
US5043500A
(en)
*
1989-12-20
1991-08-27
Uop
Use of steam eductor to supply oxygen for oxidative reheating in dehydrogenation of C3 + hydrocarbons
US7094939B1
(en)
*
2002-09-23
2006-08-22
Uop Llc
Styrene process with recycle from dehydrogenation zone
US20140114107A1
(en)
*
2012-10-24
2014-04-24
Lummus Technology Inc.
Use of hydrocarbon diluents to enhance conversion in a dehydrogenation process at low steam/oil ratios
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2376709A
(en)
*
1942-02-11
1945-05-22
Universal Oil Prod Co
Production of styrene
US2831907A
(en)
*
1956-12-10
1958-04-22
Franklin D Mayfield
Production of styrene and related compounds
US2851502A
(en)
*
1957-01-22
1958-09-09
Standard Oil Co
Styrene production
US3118006A
(en)
*
1960-01-05
1964-01-14
Monsanto Chemicals
Dehydrogenation of alkylated aromatic hydrocarbons
1966
1966-05-23
US
US552290A
patent/US3409689A/en
not_active
Expired – Lifetime
1967
1967-05-16
GB
GB22640/67A
patent/GB1176972A/en
not_active
Expired
1967-05-23
NL
NL6707138A
patent/NL6707138A/xx
unknown
1967-05-23
DE
DE1967U0013903
patent/DE1643120B2/en
active
Granted
Also Published As
Publication number
Publication date
DE1793786B2
(en)
1976-02-26
DE1643120A1
(en)
1972-03-30
NL6707138A
(en)
1967-11-24
US3409689A
(en)
1968-11-05
DE1793786A1
(en)
1974-11-21
DE1643120B2
(en)
1976-04-22
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None