GB794089A - System and method for dehydrogenation - Google Patents
System and method for dehydrogenationInfo
- Publication number
- GB794089A GB794089A GB29524/55A GB2952455A GB794089A GB 794089 A GB794089 A GB 794089A GB 29524/55 A GB29524/55 A GB 29524/55A GB 2952455 A GB2952455 A GB 2952455A GB 794089 A GB794089 A GB 794089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- catalyst
- hydrocarbon
- dehydrogenation
- tower
- 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
Links
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
- C07C5/321—Catalytic processes
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Hydrocarbons of at least 2 carbon atoms are catalytically dehydrogenated by a cyclic process in which the catalyst is alternately contacted with such a hydrocarbon charge and subjected to regeneration by combustion of a carbonaceous deposit resulting from dehydrogenation of the hydrocarbon charge and the operations are carried out without interruption in a battery <PICT:0794089/IV (b)/1> of reactors operated in timed sequence, there being substantially equal periods of hydrocarbon conversion and catalyst regeneration of less than 10-minute duration in each of the reaction vessels and the sequence of operations for each reactor involves: (1) hydrocarbon dehydrogenation; (2) steam purging to free the catalyst and reaction vessel from hydrocarbon products; (3) catalyst regeneration in oxygencontaining gas; (4) evacuation and (5) reduction of oxidized catalyst in hydrogen containing gas. In a preferred embodiment, normal butane is fed into a conventional heater 3 and then through a dehydrogenation system consisting of 5 reactors as described in Specification 794,090. After passing a prequench tower 6 and a quench tower 7 which is divided by a partition 10 to form separate tables 11 and 12 the effluent gases are withdrawn overhead through line 15 and through a compression system 16 where they are subjected to a 3 or 4 stage compression to bring the pressure to 150-170 p.s.i.g. The compressed vapours are now passed to knock-out drum 17 and then by a line 18 to an adsorber 19, the liquid products being removed by means of line 20. In the absorber the vapours are contacted with naphtha to effect recovery of 95 per cent or more of the butene in the charge. The rich oil from the adsorber is discharged through line 21 to a rectifier or tower stripper 22 where the adsorbed material is fractionated from the lean oil. An overhead product consisting of C3 and C4 hydrocarbons is withdrawn through line 23 condensed in a condenser 28 and then passed to a fractionator 31. After extraction or extractive distillation in a system 33 butadiene is removed via pipe 34. Specification 598,650, [Group IV], also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29524/55A GB794089A (en) | 1955-10-17 | 1955-10-17 | System and method for dehydrogenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29524/55A GB794089A (en) | 1955-10-17 | 1955-10-17 | System and method for dehydrogenation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB794089A true GB794089A (en) | 1958-04-30 |
Family
ID=10292912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29524/55A Expired GB794089A (en) | 1955-10-17 | 1955-10-17 | System and method for dehydrogenation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB794089A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1114473B (en) * | 1959-11-21 | 1961-10-05 | Houdry Process Corp | Process for the production of olefins and diolefins |
| DE1301810B (en) * | 1959-12-29 | 1969-08-28 | Shell Int Research | Process for the preparation of butadiene by dehydrogenating butenes or mixtures containing butenes |
| WO2014157432A1 (en) | 2013-03-26 | 2014-10-02 | 住友化学株式会社 | Method for producing methacrylic acid ester |
| DE102014203960A1 (en) | 2014-03-05 | 2015-09-10 | Evonik Degussa Gmbh | Process for the preparation of aldehydes from alkanes and synthesis gas |
| US10836690B1 (en) | 2019-07-26 | 2020-11-17 | Tpc Group Llc | Dehydrogenation process and system with reactor re-sequencing |
| CN112696704A (en) * | 2020-12-28 | 2021-04-23 | 上海域德环保工程有限公司 | Quench tower with water circulation device and unpowered ash removal device |
-
1955
- 1955-10-17 GB GB29524/55A patent/GB794089A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1114473B (en) * | 1959-11-21 | 1961-10-05 | Houdry Process Corp | Process for the production of olefins and diolefins |
| DE1301810B (en) * | 1959-12-29 | 1969-08-28 | Shell Int Research | Process for the preparation of butadiene by dehydrogenating butenes or mixtures containing butenes |
| WO2014157432A1 (en) | 2013-03-26 | 2014-10-02 | 住友化学株式会社 | Method for producing methacrylic acid ester |
| DE102014203960A1 (en) | 2014-03-05 | 2015-09-10 | Evonik Degussa Gmbh | Process for the preparation of aldehydes from alkanes and synthesis gas |
| US10836690B1 (en) | 2019-07-26 | 2020-11-17 | Tpc Group Llc | Dehydrogenation process and system with reactor re-sequencing |
| CN114222727A (en) * | 2019-07-26 | 2022-03-22 | Tpc集团有限责任公司 | Reactor reordering dehydrogenation process and system |
| EP4003945A4 (en) * | 2019-07-26 | 2023-09-20 | TPC Group LLC | Dehydrogenation process and system with reactor re-sequencing |
| CN114222727B (en) * | 2019-07-26 | 2023-11-17 | Tpc集团有限责任公司 | Reactor reordered dehydrogenation process and system |
| CN112696704A (en) * | 2020-12-28 | 2021-04-23 | 上海域德环保工程有限公司 | Quench tower with water circulation device and unpowered ash removal device |
| CN112696704B (en) * | 2020-12-28 | 2021-12-24 | 上海域德环保工程有限公司 | Quench tower with water circulation device and unpowered ash removal device |
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