EP1404647A1 - Procede de production de nitriles insatures a partir d'alcanes - Google Patents
Procede de production de nitriles insatures a partir d'alcanesInfo
- Publication number
- EP1404647A1 EP1404647A1 EP02762301A EP02762301A EP1404647A1 EP 1404647 A1 EP1404647 A1 EP 1404647A1 EP 02762301 A EP02762301 A EP 02762301A EP 02762301 A EP02762301 A EP 02762301A EP 1404647 A1 EP1404647 A1 EP 1404647A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkane
- alkene
- gas stream
- ammonia
- dehydrogenation
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
- C07C253/26—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
- B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
- C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
- C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Definitions
- the dehydrogenation temperature is generally 400 to 1100 ° C.
- the pressure in the last catalyst bed of the tray reactor is generally 0.2 to 5 bar, preferably 1 to 3 bar.
- the load (GHSV) is generally 500 to 2000 h "1 , in high-load operation
- 1 1 also up to 100,000 h “ , preferably 4000 to 16,000 h " , based on the alkane to be dehydrogenated.
- Suitable absorbents are comparatively non-polar organic solvents, for example a iphatician Cg to Cig alkenes, or aromatic hydrocarbons such as the middle oil fractions from paraffin distillation, or ethers with bulky groups, or mixtures of these solvents, these being a polar solvent such as 1,2-dimethylphthalate can be added.
- a iphatician Cg to Cig alkenes or aromatic hydrocarbons such as the middle oil fractions from paraffin distillation, or ethers with bulky groups, or mixtures of these solvents, these being a polar solvent such as 1,2-dimethylphthalate can be added.
- a feed gas stream B is obtained which contains the alkane and the alkene and is essentially freed from the other gas components.
- the feed gas stream B contains the stripping gas in addition to the alkane and the alkene.
- an oxygen-containing gas is used as the stripping gas in the amounts in which it is required in the subsequent ammoxidation.
- ammonia is separated off separately by bringing the hot product gas stream C from the ammoxidation into contact with aqueous sulfuric acid in a quench tower and thus washing ammonia out of the product gas stream C as ammonium sulfate.
- An aqueous ammonium sulfate solution is obtained, which can contain dissolved unsaturated nitrile and by-products of ammoxidation. These can be steamed in a downstream steam stripper are stripped out of the aqueous ammonium sulfate solution and sent for further distillative workup.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procédé de production de nitriles insaturés à partir des alcanes correspondants, qui consiste (a) à introduire un alcane dans une zone de déshydrogénation et à déshydrogéner l'alcane par catalyse pour obtenir l'alcène correspondant, un flux gazeux A étant obtenu qui contient l'alcène, de l'alcane n'ayant pas réagi et éventuellement un ou plusieurs autres constituants gazeux, choisis dans le groupe constitué par la vapeur d'eau, l'hydrogène, des oxydes de carbone, des hydrocarbures à point d'ébullition plus bas que celui de l'alcane et de l'alcène (à point d'ébullition bas), l'azote et des gaz nobles, (b) à séparer au moins partiellement les autres constituants gazeux du flux gazeux A, ce qui permet d'obtenir un flux gazeux d'alimentation B qui contient l'alcane et l'alcène, (c) à introduire le flux gazeux d'alimentation B, de l'ammoniac, du gaz contenant de l'oxygène et éventuellement de la vapeur d'eau dans une zone d'oxydation et à ammoxyder par catalyse l'alcène pour obtenir le nitrile insaturé correspondant, un flux gazeux C étant obtenu qui contient le nitrile insaturé, des sous-produits de l'ammoxydation, de l'alcane et de l'alcène n'ayant pas réagi et éventuellement un ou plusieurs constituants gazeux choisis dans le groupe constitué par la vapeur d'eau, l'oxygène, des oxydes de carbone, l'ammoniac, l'azote et des gaz nobles, (d) éventuellement à séparer l'ammoniac du flux gazeux C, ce qui permet d'obtenir un flux gazeux D appauvri en ammoniac, (e) à séparer le nitrile insaturé et les sous-produits de l'ammoxydation du flux gazeux C ou D par absorption dans un milieu d'absorption aqueux, un flux de gaz E étant obtenu qui contient l'alcane et l'alcène n'ayant pas réagi et éventuellement un ou plusieurs autres constituants gazeux choisis dans le groupe constitué par l'oxygène, des oxydes de carbone, l'ammoniac, l'azote et des gaz nobles, et un flux aqueux étant également obtenu qui contient le nitrile et les sous-produits, et à récupérer le nitrile insaturé du flux aqueux et (f) à renvoyer le flux gazeux E dans la zone de déshydrogénation.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10131297 | 2001-06-29 | ||
DE10131297A DE10131297A1 (de) | 2001-06-29 | 2001-06-29 | Verfahren zur Herstellung von partiellen Oxidationsprodukten und/oder partiellen Ammoxidationsprodukten wenigstens eines olefinischen Kohlenwasserstoffs |
DE10211275A DE10211275A1 (de) | 2002-03-13 | 2002-03-13 | Verfahren der kontinuierlichen heterogen katalysierten partiellen Dehydrierung |
DE10211275 | 2002-03-13 | ||
DE2002117844 DE10217844A1 (de) | 2002-04-22 | 2002-04-22 | Verfahren zur Herstellung von ungesättigten Nitrilen aus Alkanen |
DE10217844 | 2002-04-22 | ||
PCT/EP2002/007024 WO2003002520A1 (fr) | 2001-06-29 | 2002-06-25 | Procede de production de nitriles insatures a partir d'alcanes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1404647A1 true EP1404647A1 (fr) | 2004-04-07 |
Family
ID=27214489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02762301A Withdrawn EP1404647A1 (fr) | 2001-06-29 | 2002-06-25 | Procede de production de nitriles insatures a partir d'alcanes |
Country Status (7)
Country | Link |
---|---|
US (1) | US7271279B2 (fr) |
EP (1) | EP1404647A1 (fr) |
JP (1) | JP2004532283A (fr) |
KR (1) | KR20040034619A (fr) |
CN (1) | CN1229338C (fr) |
SA (1) | SA02230243B1 (fr) |
WO (1) | WO2003002520A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10217845A1 (de) * | 2002-04-22 | 2003-11-06 | Basf Ag | Verfahren zur Herstellung von ungesättigten Nitrilen |
WO2005113123A1 (fr) * | 2004-05-07 | 2005-12-01 | Basf Aktiengesellschaft | Procede de remplissage structure de tubes de contact d'un faisceau de tubes de contact |
US7601866B2 (en) | 2005-03-01 | 2009-10-13 | Basf Aktiengesellschaft | Process for removing methacrolein from liquid phase comprising acrylic acid as a main constituent and target product, and methacrolein as a secondary component |
DE102006000996A1 (de) | 2006-01-05 | 2007-07-12 | Basf Ag | Verfahren der heterogen katalysierten Gasphasen-Partialoxidation wenigstens einer organischen Ausgangsverbindung |
DE102008044946B4 (de) * | 2008-08-29 | 2022-06-15 | Evonik Superabsorber Gmbh | Einsatz von Schaumkörpern in Oxidations-Reaktoren zur Herstellung ungesättigter Carbonsäuren |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4609502A (en) | 1985-02-14 | 1986-09-02 | The Halcon Sd Group, Inc. | Process for preparing unsaturated nitriles from alkanes |
US4849537A (en) | 1988-02-09 | 1989-07-18 | The Boc Group, Inc. | Process for the production of nitriles |
US4849538A (en) | 1988-03-23 | 1989-07-18 | The Boc Group, Inc. | Process for the production of nitriles |
US4870201A (en) * | 1988-12-08 | 1989-09-26 | The Boc Group, Inc. | Process for the production of nitriles |
US5008414A (en) | 1988-12-08 | 1991-04-16 | The Boc Group, Inc. | Process for the production of oxides |
US4943650A (en) * | 1989-01-30 | 1990-07-24 | The Boc Group, Inc. | Process for the production of nitriles |
US5268497A (en) | 1992-02-24 | 1993-12-07 | The Boc Group, Inc. | Process for the production of nitriles |
-
2002
- 2002-06-25 JP JP2003508703A patent/JP2004532283A/ja active Pending
- 2002-06-25 WO PCT/EP2002/007024 patent/WO2003002520A1/fr active Application Filing
- 2002-06-25 CN CNB028130286A patent/CN1229338C/zh not_active Expired - Fee Related
- 2002-06-25 KR KR10-2003-7017105A patent/KR20040034619A/ko not_active Application Discontinuation
- 2002-06-25 EP EP02762301A patent/EP1404647A1/fr not_active Withdrawn
- 2002-06-25 US US10/482,326 patent/US7271279B2/en not_active Expired - Fee Related
- 2002-08-11 SA SA02230243A patent/SA02230243B1/ar unknown
Non-Patent Citations (1)
Title |
---|
See references of WO03002520A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1522243A (zh) | 2004-08-18 |
JP2004532283A (ja) | 2004-10-21 |
KR20040034619A (ko) | 2004-04-28 |
WO2003002520A1 (fr) | 2003-01-09 |
SA02230243B1 (ar) | 2008-09-07 |
CN1229338C (zh) | 2005-11-30 |
US7271279B2 (en) | 2007-09-18 |
US20040199000A1 (en) | 2004-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20040129 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BASF SE |
|
17Q | First examination report despatched |
Effective date: 20090129 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20090811 |