EP3007814A1 - Reaktionsrohr und verfahren zur herstellung von cyanwasserstoff - Google Patents
Reaktionsrohr und verfahren zur herstellung von cyanwasserstoffInfo
- Publication number
- EP3007814A1 EP3007814A1 EP14725183.9A EP14725183A EP3007814A1 EP 3007814 A1 EP3007814 A1 EP 3007814A1 EP 14725183 A EP14725183 A EP 14725183A EP 3007814 A1 EP3007814 A1 EP 3007814A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reaction tube
- ribs
- reaction
- hydrogen cyanide
- tube
- 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- Withdrawn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
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/02—Preparation, separation or purification of hydrogen cyanide
- C01C3/0208—Preparation in gaseous phase
- C01C3/0229—Preparation in gaseous phase from hydrocarbons and ammonia in the absence of oxygen, e.g. HMA-process
-
- 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
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
- B01J12/007—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor in the presence of catalytically active bodies, e.g. porous plates
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
- B01J19/0026—Avoiding carbon deposits
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
- B01J2219/00777—Baffles attached to the reactor wall horizontal
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/24—Stationary reactors without moving elements inside
Definitions
- the invention is directed to a reaction tube for the production of hydrogen cyanide, and to a process for the production of hydrogen cyanide using this reaction tube.
- the BMA process for the production of hydrogen cyanide from ammonia and an aliphatic hydrocarbon having 1 to 4 carbon atoms is carried out at temperatures in the range of 1000 ° C to 1400 ° C. Since the reaction is endothermic, heat must be added to the reaction mixture in the process. On an industrial scale, the BMA process is carried out in externally heated reaction tubes, which are coated on the inside of the tube with a platinum-containing catalyst and are flowed through by the gaseous reaction mixture. The space-time yield in these technical reactors is determined by the geometric surface of the reaction tube and the resulting limited active surface of the platinum-containing catalyst.
- reaction tubes for the BMA method are known, the periodic cross-sectional changes of Reaction tube from a circular cross section to an elliptical cross section.
- Hydrocarbon formed carbon black is thereby precipitated on the platinum-containing catalyst and thereby inhibits the formation reaction of hydrogen cyanide. Therefore, measures must be taken more frequently to remove soot deposits for which the production of
- Hydrogen cyanide must be interrupted.
- reaction tubes for the production of hydrogen cyanide which comprises a cylindrical ceramic tube and an applied on the tube inner wall, containing platinum catalyst, wherein the
- Reaction tube has on the inner wall in the longitudinal direction of the tube extending, extending into the interior of the reaction tube and coated with catalyst ribs.
- the invention also relates to the use of the reaction tube for the production of hydrogen cyanide, and to a process for the preparation of hydrogen cyanide by reacting ammonia and at least one aliphatic hydrocarbon having 1 to 4 carbon atoms in
- the reaction tube of the invention can be in the same manner as the known cylindrical reaction tubes by extrusion or extrusion of a plastic ceramic mass to a tubular green body, drying the
- annular gap In extruding or extrusion, instead of a circular annular gap, an annular gap with additional openings corresponding to the ribs only has to be provided instead of a circular annular gap
- the reaction tube according to the invention preferably has on the inner wall 2 to 6 ribs, more preferably 3 or 4 ribs and most preferably 4 ribs.
- the ribs preferably extend more than 0.1 times the
- the ribs in the middle of the reaction tube abut each other and divide the interior of the reaction tube into several separate chambers.
- the fins on the inner wall of the reaction tube preferably have an average thickness which is 0.25 times to 2.5 times the average wall thickness of the reaction tube.
- the ribs on the inner wall of the reaction tube to a uniform thickness, wherein particularly preferably the ribs and the wall of the
- Reaction tube have substantially the same thickness.
- the reaction tube according to the invention has a cylindrical shape, wherein the inner diameter of the tube is preferably 10 to 50 mm and more preferably 15 to 30 mm.
- the length of the reaction tube is preferably in the range of 1000 to 5000 mm, and more preferably in the range of 1500 to 2500 mm.
- the reaction tube according to the invention preferably consists of a gas-tight sintered ceramic and particularly preferably gas-tight sintered aluminum oxide or silicon carbide.
- the reaction tube according to the invention is coated on the inside and on the ribs in whole or in part with a catalyst containing platinum.
- a catalyst containing platinum Preferably, more than 80% of the geometric surface of the inside of the reaction tube and ribs is coated with the platinum-containing catalyst. Containing platinum
- Catalysts can all be used for the BMA process too
- Catalysts can be applied to the inside of the reaction tube by any known method for applying such catalysts to support materials. Preference is given to the methods described in EP-A 0 299 175, EP-A 0 407 809 and EP-A 0 803 430 for applying the Platinum-containing catalyst used on the inside of the reaction tube.
- reaction tube according to the invention can be used for the reaction tube according to the invention.
- Carbon atoms in the presence of a platinum-containing catalyst at a temperature of 1000 to 1400 ° C in at least one reaction tube according to the invention implemented.
- the temperature of 1000 ° C to 1400 ° C held a temperature of 1000 ° C to 1400 ° C held.
- Hydrocarbons of at least 90% by volume of methane preferably contains ammonia in stoichiometric
- Reaction tube is preferably chosen so that forms a substantially laminar flow.
- Fig. 1 shows the cross section through a known from the prior art cylindrical reaction tube.
- Fig. 2 shows the cross section through a known from the prior art reaction tube with a tubular installation in the middle of the tube.
- the gas mixture is passed through the gap between the two tubes.
- Fig. 3 shows the cross section through an inventive reaction tube with 4 ribs, which do not reach into the middle of the reaction tube.
- Fig. 4 shows the cross section through an inventive reaction tube with 4 ribs, which extends to the middle of the
- Fig. 5 shows the cross section through an inventive reaction tube with 3 ribs, which do not reach into the middle of the reaction tube and whose thickness decreases with increasing distance from the inner wall of the reaction tube.
- Alumina with 2100 mm length and 17 mm inner diameter was coated and formed as described in Example 6 of EP 0 407 809 A with a platinum-containing catalyst. Subsequently, a gas mixture of 44 mol / h of ammonia and 40 mol / h of methane at 1280 ° C from below through the
- Example 1 was repeated, but in the
- Reaction tube centric an externally coated with catalyst tube of sintered alumina with
- Example 1 was repeated except that a reaction tube having a cross-section corresponding to Fig. 3 was used which had four ribs extending in the longitudinal direction of the tube and each 4.5 mm in the interior of the reaction tube with a mean thickness of 3 mm.
- the yield of hydrogen cyanide was 84.0% based on ammonia (92.5% based on methane).
- Example 1 was repeated, but using a reaction tube with a cross section corresponding to Fig. 4, the four extending in the longitudinal direction of the tube and abutting in the middle of the reaction tube ribs
- Example 1 was repeated except that a reaction tube having a cross section corresponding to Fig. 5 was used, the three running in the longitudinal direction of the tube and each 4.75 mm in the interior of the reaction tube reaching
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14725183.9A EP3007814A1 (de) | 2013-06-11 | 2014-05-21 | Reaktionsrohr und verfahren zur herstellung von cyanwasserstoff |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13171415.6A EP2813286A1 (de) | 2013-06-11 | 2013-06-11 | Reaktionsrohr und Verfahren zur Herstellung von Cyanwasserstoff |
| PCT/EP2014/060389 WO2014198502A1 (de) | 2013-06-11 | 2014-05-21 | Reaktionsrohr und verfahren zur herstellung von cyanwasserstoff |
| EP14725183.9A EP3007814A1 (de) | 2013-06-11 | 2014-05-21 | Reaktionsrohr und verfahren zur herstellung von cyanwasserstoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3007814A1 true EP3007814A1 (de) | 2016-04-20 |
Family
ID=48577608
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13171415.6A Withdrawn EP2813286A1 (de) | 2013-06-11 | 2013-06-11 | Reaktionsrohr und Verfahren zur Herstellung von Cyanwasserstoff |
| EP14725183.9A Withdrawn EP3007814A1 (de) | 2013-06-11 | 2014-05-21 | Reaktionsrohr und verfahren zur herstellung von cyanwasserstoff |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13171415.6A Withdrawn EP2813286A1 (de) | 2013-06-11 | 2013-06-11 | Reaktionsrohr und Verfahren zur Herstellung von Cyanwasserstoff |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20160145114A1 (de) |
| EP (2) | EP2813286A1 (de) |
| JP (1) | JP6377145B2 (de) |
| CN (1) | CN105307767A (de) |
| SG (1) | SG11201508343SA (de) |
| WO (1) | WO2014198502A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2016004436A (es) | 2013-10-11 | 2016-06-21 | Evonik Degussa Gmbh | Tubo de reaccion y metodo para producir cianuro de hidrogeno. |
| EP3301075A1 (de) | 2016-09-28 | 2018-04-04 | Evonik Degussa GmbH | Verfahren zur herstellung von cyanwasserstoff |
| CN110871049B (zh) * | 2018-09-03 | 2021-07-27 | 中国石油化工股份有限公司 | 高效热交换反应管 |
| JP7740647B2 (ja) * | 2020-11-10 | 2025-09-17 | 有限会社ミネルバライトラボ | 加熱式連続撹拌槽型反応器 |
| JP7766397B2 (ja) * | 2020-12-16 | 2025-11-10 | 三菱重工業株式会社 | 反応管、この反応管を備えた触媒反応装置、及びこの触媒反応装置において流体状生成物を得るための方法 |
| JP7599367B2 (ja) * | 2021-03-31 | 2024-12-13 | 三菱重工業株式会社 | 触媒反応装置、この触媒反応装置において流体状生成物を得るための方法、及び、この触媒反応装置の製造方法 |
| US12515190B2 (en) * | 2021-11-24 | 2026-01-06 | Knight Material Technologies Llc | Heat transfer packing element |
| CN116251541A (zh) * | 2023-03-28 | 2023-06-13 | 华东理工大学 | 一种管程中引入内构件的列管式固定床反应器 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE544845A (de) | 1955-02-03 | |||
| GB969796A (en) * | 1961-03-01 | 1964-09-16 | Exxon Research Engineering Co | Apparatus for heating fluids and tubes for disposal therein |
| DE2923596A1 (de) * | 1979-06-11 | 1980-12-18 | Selas Kirchner Gmbh | Prozessofen zur thermischen umwandlung von gasgemischen, insbesondere kohlenwasserstoffen |
| DE2936844A1 (de) | 1979-09-12 | 1981-04-02 | Degussa Ag, 6000 Frankfurt | Verfahren zur herstellung von cyanwasserstoff |
| JPS59222428A (ja) * | 1983-05-31 | 1984-12-14 | Kobe Steel Ltd | 高効率メタン化装置 |
| DE3568605D1 (en) * | 1985-01-16 | 1989-04-13 | Hamon Sobelco Sa | Process and device for recovering thermal energy from the exhaust gases of thermal-power stations |
| DE3723535A1 (de) | 1987-07-16 | 1989-01-26 | Degussa | Verfahren zur herstellung von cyanwasserstoff |
| DE3915428A1 (de) | 1989-05-11 | 1990-11-15 | Hoechst Ceram Tec Ag | Aluminiumoxidrohre und verfahren zu ihrer herstellung |
| DE3923034A1 (de) * | 1989-07-13 | 1991-02-07 | Degussa | Verfahren zur herstellung katalytisch wirksamer beschichtungen fuer die cyanwasserstoffherstellung |
| DE4128201A1 (de) | 1991-08-26 | 1993-03-04 | Hoechst Ceram Tec Ag | Reaktionsrohr aus aluminiumoxid und verfahren zu seiner herstellung |
| JP2983173B2 (ja) | 1996-04-22 | 1999-11-29 | 株式会社シマノ | 内装ハブ |
| DE19653991A1 (de) * | 1996-12-21 | 1998-06-25 | Degussa | Reaktor zur Durchführung endothermer katalytischer Reaktionen |
| US20020085967A1 (en) * | 2000-12-18 | 2002-07-04 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Process for generating hydrogen and apparatus for generating hydrogen |
| DE10233961A1 (de) * | 2002-07-25 | 2004-02-12 | Schmidt + Clemens Gmbh + Co. Edelstahlwerk Kaiserau | Verfahren zum thermischen Spalten von Kohlenwasserstoffen |
| DE10309209A1 (de) | 2003-02-28 | 2004-09-09 | Degussa Ag | Verfahren zur Herstellung von Cyanwasserstoff nach dem BMA-Verfahren und Katalysator zu seiner Durchführung |
| US20080234527A1 (en) * | 2004-03-09 | 2008-09-25 | Takaya Matsumoto | Method for Producing Hydrogen and System Therefor |
| US7309480B2 (en) * | 2004-04-16 | 2007-12-18 | H2Gen Innovations, Inc. | Catalyst for hydrogen generation through steam reforming of hydrocarbons |
| DE202004016252U1 (de) * | 2004-08-12 | 2005-12-22 | Schmidt + Clemens Gmbh & Co. Kg | Verbundrohr und eine Anlage zum thermischen Spalten von Kohlenwasserstoffen in Anwesenheit von Dampf |
| DE102004054727A1 (de) | 2004-11-12 | 2006-05-24 | Degussa Ag | Verfahren zur Herstellung von Cyanwasserstoff und Reaktionsrohr für das Verfahren |
| DK2037202T3 (en) * | 2006-07-05 | 2018-11-19 | Nippon Steel & Sumitomo Metal Corp | Metal pipe for thermal cracking reaction |
| EP2146930A2 (de) * | 2007-05-14 | 2010-01-27 | INVISTA Technologies S.à.r.l. | Hocheffizienter reaktor und entsprechendes verfahren |
| EP2671636A1 (de) * | 2012-06-06 | 2013-12-11 | Ammonia Casale S.A. | Druckbehälter mit austauschbaren Röhren |
-
2013
- 2013-06-11 EP EP13171415.6A patent/EP2813286A1/de not_active Withdrawn
-
2014
- 2014-05-21 SG SG11201508343SA patent/SG11201508343SA/en unknown
- 2014-05-21 CN CN201480033710.2A patent/CN105307767A/zh active Pending
- 2014-05-21 WO PCT/EP2014/060389 patent/WO2014198502A1/de not_active Ceased
- 2014-05-21 JP JP2016518893A patent/JP6377145B2/ja not_active Expired - Fee Related
- 2014-05-21 US US14/896,719 patent/US20160145114A1/en not_active Abandoned
- 2014-05-21 EP EP14725183.9A patent/EP3007814A1/de not_active Withdrawn
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014198502A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160145114A1 (en) | 2016-05-26 |
| EP2813286A1 (de) | 2014-12-17 |
| JP6377145B2 (ja) | 2018-08-22 |
| JP2016526523A (ja) | 2016-09-05 |
| WO2014198502A1 (de) | 2014-12-18 |
| SG11201508343SA (en) | 2015-11-27 |
| CN105307767A (zh) | 2016-02-03 |
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