EP3322531A1 - Catalyseur oxyde mixte mesoporeux comprenant du silicium - Google Patents
Catalyseur oxyde mixte mesoporeux comprenant du siliciumInfo
- Publication number
- EP3322531A1 EP3322531A1 EP16736075.9A EP16736075A EP3322531A1 EP 3322531 A1 EP3322531 A1 EP 3322531A1 EP 16736075 A EP16736075 A EP 16736075A EP 3322531 A1 EP3322531 A1 EP 3322531A1
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- Prior art keywords
- catalyst
- metal
- mixed oxide
- oxide
- mixtures
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/08—Silica
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/617—500-1000 m2/g
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/638—Pore volume more than 1.0 ml/g
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- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
- B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/682—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium, tantalum or polonium
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/847—Vanadium, niobium or tantalum or polonium
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/20—Constitutive chemical elements of heterogeneous catalysts of Group II (IIA or IIB) of the Periodic Table
- B01J2523/27—Zinc
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/40—Constitutive chemical elements of heterogeneous catalysts of Group IV (IVA or IVB) of the Periodic Table
- B01J2523/41—Silicon
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
- B01J2523/50—Constitutive chemical elements of heterogeneous catalysts of Group V (VA or VB) of the Periodic Table
- B01J2523/57—Tantalum
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- C07C2521/08—Silica
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of zinc, cadmium or mercury
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- C07C2523/20—Vanadium, niobium or tantalum
Definitions
- Butadiene is widely used in the chemical industry especially as a reagent for the production of polymers.
- butadiene is almost entirely produced from steam cracking units of which it is a valuable by-product.
- the fluctuation in the price of oil and the ever greater demand for this chemical intermediary have made its price very volatile, which encourages a diversification of the means of supply.
- 1,3-butadiene can be produced from ethanol.
- Two processes have been industrialized on a large scale: the "S. K. Process” and the "Carbide Process”.
- 1,3-butadiene is produced from ethanol in one step, whereas in the "Carbide Process", 1,3-butadiene is produced in two steps: ethanol is first converted to acetaldehyde, then an ethanol-acetaldehyde mixture is converted to 1,3-butadiene.
- ethanol is first converted to acetaldehyde
- an ethanol-acetaldehyde mixture is converted to 1,3-butadiene.
- the main distinction between the catalysts involved in these processes is that one (SK Process) is capable of dehydrogenating ethanol to acetaldehyde while producing butadiene from the mixture so formed while the other is hence the need for a first dehydrogenation step on a specific catalyst.
- the most effective catalyst components for this butadiene production method are magnesium, tantalum, zirconium, hafnium, with butadiene selectivities of 50 to 69%, with niobium (or columbium) considered an unattractive element with selectivities less than 40% (BB Corson, HE Jones, CE Welling, JA Hinckley, EE Stahly Ind. Eng Chem, 1950, 42 (2), p 359-373).
- 2,421,661 (WJ Toussaint, JT Dunn, Carbide and Carbon Chemical Corporation, 1947) describes, for its part, a process for the preparation of butadiene which comprises the conversion of an acyclic mono-olefinic aldehyde (crotonaldehyde or acetaldehyde) and of a monohydroxy alcohol (ethanol) on a zirconium oxide group catalyst, tantalum oxide, niobium oxide and one of the combinations of these oxides with silica.
- the tantalum oxide used alone remains the best catalyst for converting the ethanol / acetaldehyde specific mixture.
- WO 2014/049158 uses a mixed oxide Mg-Si doped with elements such as Ti, V, Mo, Mn, Cu, Ni, Zn or Cr,
- WO 2013/125389 claims the use of a metal-doped Mg-Si mixed oxide belonging to columns 4 to 13,
- WO 2012/015340 uses the combination of an element in the metallic state of column 11 and a metal oxide selected from magnesium, titanium, zirconium, tantalum and niobium.
- the invention relates to a mesoporous mixed oxide catalyst comprising silicon and at least one metal M selected from the group consisting of the elements of groups 4 and 5 of the periodic table and mixtures thereof, the mass of metal M being between 0.1 and 20% of the mass of the mixed oxide, said mixed oxide resulting from the combination of oxygen atoms with at least the silicon element and the element M.
- the invention also relates to the use of this catalyst for the production of 1,3-butadiene from a filler comprising at least ethanol at a temperature between 300 and 400 ° C, a pressure of between 0, 15 and 0.5 MPa, a space velocity of between 0.5 and 5 hr -1 .
- the present invention describes a process for the production of butadiene with a single reactor or with a series of reactors using a catalyst comprising, and advantageously consisting of an amorphous mesoporous mixed oxide comprising the silicon element, at least one metal M selected from the group constituted by the elements of groups 4 and 5 of the periodic table and their mixtures, that is to say of the periodic table of the elements, and optionally at least one metal M 'chosen from the group constituted by the elements of the groups 11 and 12 of the periodic table and their mixtures, advantageously a binder, and advantageously an organic adjuvant.
- An advantage of the present invention using said catalyst is an improvement in the maintenance of catalytic performance over the life of the catalyst, i.e. from one catalytic cycle to another.
- Another aspect of the invention is an increase in the number of possible regenerations and therefore the lifetime of the catalyst. Presentation of the invention
- the invention relates to a catalyst comprising, and preferably consisting of a mesoporous mixed oxide, advantageously amorphous, comprising silicon, at least one metal selected from the group consisting of the elements of groups 4 and 5 of the periodic table and their mixtures and optionally at least one metal selected from the group consisting of the elements of groups 11 and 12 of the periodic table and mixtures thereof, advantageously a binder, and its use as a catalyst for the production of butadiene from a feedstock comprising at least 1 ethanol and its method of preparation.
- a catalyst comprising, and preferably consisting of a mesoporous mixed oxide, advantageously amorphous, comprising silicon, at least one metal selected from the group consisting of the elements of groups 4 and 5 of the periodic table and their mixtures and optionally at least one metal selected from the group consisting of the elements of groups 11 and 12 of the periodic table and mixtures thereof, advantageously a binder, and its use as a catalyst for the production of butadiene from a feedstock
- mixed oxide is meant a solid resulting from the combination of oxygen atoms with at least two other elements different from the latter, these elements being linked by covalent bonding.
- Said mixed oxide comprises at least the silicon element as the first additional element to oxygen.
- Said mixed oxide also comprises at least one metal M selected from the group consisting of the elements of groups 4 and 5 of the periodic table and mixtures thereof.
- the presence of silicon and metal M define mixed oxides called "binary" called, for example, Ta-Si, Nb-Si, Zr-Si, etc. in the following text of the present invention. It is also possible to combine at least two metals M as defined above so as to obtain mixed oxides with three elements (ternary), four elements, etc.
- said metal M is selected from the group consisting of tantalum, niobium, zirconium and mixtures thereof. Even more preferably, said metal M is selected from the group consisting of tantalum and niobium alone or as a mixture.
- Said mixed oxide may also optionally comprise a metal M ', in addition to silicon and metal M.
- Said metal M' is a metal selected from the group consisting of the elements of groups 11 and 12 of the periodic table and mixtures thereof.
- the presence of silicon, metal M and optional metal M ' define so-called "ternary" mixed oxides called, for example, Ta-Si-Ag, Nb-Si-Zn, etc. in the following text of the present invention. It is also possible to combine at least two metals M 'as defined above so as to obtain mixed oxides with four elements, etc.
- said metal M ' is selected from the group consisting of silver, copper, zinc and mixtures thereof.
- Said mixed oxide comprises at least one M, the mass of said metal M being between 0.1 and 20%, preferably between 0.3 and 10%, preferably between 0.5 and 5% and very preferably between 0.5 and 2% of the mass of the mixed oxide.
- Said mixed oxide advantageously comprises a metal M ', the mass of metal M', when this is present, being between 0.1 and 20%, preferably between 0.3 and 10%, preferably between 0, 5 and 5% and very preferably between 0.5 and 2% of the mass of the mixed oxide.
- mixed oxide comprising an element A, the mass of the element A being comprised, or representing between, x and y% of the mass of the mixed oxide, is understood to mean that said mixed oxide comprises between x and y parts by weight of said element A per 100 parts by weight of said mixed oxide.
- Said mixed oxide is mesoporous, that is to say that it is characterized by the presence of pores whose size varies between 2 and 50 nm according to the IUPAC classification (KSW Sing, Everett DH, RA Haul, L Moscow, J. Pierotti, J. Rouquerol, T. Siemieniewska, Pure Appl. Chem., 1985, 57, 603).
- said mixed oxide can be mesostructured (that is to say have mesopores of uniform size and periodically distributed in the matrix) or hierarchically porous (presence of micropores and / or macropores additional to the mesopores).
- said mixed oxide is mesoporous with unorganized porosity without micropores.
- Particularly advantageous results are obtained via the use of a mixed oxide having a specific surface area of at least 250 m 2 / g, preferably a specific surface area of at least 400 m 2 / g and even more preferably a specific surface area of at least 600 m 2 / g.
- the pore volume of said mixed oxide is preferably at least 1 ml / g and more preferably at least 1.3 ml / g.
- the average pore diameter (or pore size) of said mixed oxide is preferably at least 4 nm, preferably between 4.5 and 17 nm and even more preferably between 4.5 and 10 nm.
- the catalyst according to the invention may advantageously comprise at least one porous oxide material having the role of binder so as to generate the physical properties of the catalysts suitable for the process (mechanical strength, resistance to attrition, etc.).
- Said porous oxide material is preferably a porous oxide material chosen from the group formed by silica, magnesia, clays, titanium oxide, lanthanum oxide, cerium oxide, boron phosphates and mixtures at least two of the oxides mentioned above. It is also possible to use titanates, for example titanates of zinc, nickel or cobalt. It is still possible to use simple, synthetic or natural clays of 2: 1 dioctahedral phyllosilicate or 3: 1 trioctahedral phyllosilicate such as kaolinite, antigorite, chrysotile, montmorillonnite, beidellite, vermiculite, talc. , hectorite, saponite, laponite. These clays can be optionally delaminated. The various mixtures using at least two of the compounds mentioned above are also suitable for acting as binder.
- the binder used is silicic in nature.
- said silicic binder may be in the form of powders or colloidal solutions.
- said catalyst comprises from 5 to 60% by weight, and preferably from 10 to 30% by weight of silicic binder, the weight percentages being expressed relative to the total mass of said catalyst.
- the aforementioned textural parameters are determined by the so-called "nitrogen volumetric” analysis technique which corresponds to the physical adsorption of nitrogen molecules in the porosity of the material via a progressive increase in pressure at a constant temperature.
- Specific surface area is defined as the BET specific surface area (SBET in m 2 / g) determined by nitrogen adsorption according to ASTM D 3663-78 established at from the BRUNAUER-EMMETT-TELLER method described in the journal "The Journal of the American Society", 1938, 60, 309.
- the porous distribution representative of a population of mesopores is determined by the model Barrett-Joyner-Halenda (BJH) .
- the nitrogen adsorption-desorption isotherm according to the BJH model thus obtained is described in the periodical "The Journal of the American Society", 1951, 73, 373, written by EP Barrett, LG Joyner and PP Halenda.
- the pore volume V is defined as the value corresponding to the volume observed for the partial pressure P / P ° max of the nitrogen adsorption-desorption isotherm.
- the diameter of the mesopores ⁇ of the mixed oxide according to the invention is determined by the formula 4000.V / S B ET-
- the synthetic routes to obtain these solids can be "traditional" inorganic synthesis methods (precipitation / gelling from salts) or "modern” metallo-organic (precipitation / gelling from alkoxides), these methods which can be named in a simplified way “sol-gel” methods.
- These "sol-gel” methods are based on chemical reactions of hydrolysis (or even complexation) and condensation of molecular precursors (salts or alkoxides), operated most often at atmospheric pressure and ambient temperature in an aqueous or aquo-organic medium. . It is also possible to use “sol-gel” methods combined with the use of specific synthetic methods such as spray-drying (also called atomization), dip-coating, etc.
- the preparation method used to synthesize the catalyst according to the invention is the metallo-organic modern ground-gel route by precipitation / gelling comprising at least the following steps:
- Operation (b) adding to the solution obtained during the operation (a) of at least one precursor of the metal M, in the pure state or dissolved in a suitable medium compatible with said solution resulting from the operation (a).
- Operation (b) may be repeated as many times as necessary, in particular when the non-joint addition of distinct elements M (ternary, quaternary systems, etc.),
- step (d) filtration followed by possible washes or evaporation of the suspension obtained during the operation (c), (e) at least one heat treatment, advantageously hydrothermal, of the mixed oxide obtained in step (d) (drying and / or calcination, and / or steaming, etc.) so as to obtain the catalyst used according to invention.
- the mixed oxide obtained at the end of step d) is dried and then calcined.
- the drying step may be carried out in an oven in a temperature range from 20 to 200 ° C, preferably from 50 ° C to 150 ° C and preferably from 100 ° C to 130 ° C for a period of less than 72 ° C. h and preferably less than 24 h.
- the precursors of the element Si and at least the metal M used during the operation (a) can be any compound comprising the element Si or M and can release this element in solution in reactive form.
- the (s) precursor (s) of at least said subject metal M (s) can still be a (the) oxide ( s) or a hydroxide (s) of said metal M.
- a preferred silicic precursor is tetraethylorthoside licate (TEOS).
- TEOS tetraethylorthoside licate
- said metal M is not impregnated.
- said metal M is incorporated only in step b) of the process for preparing the catalyst according to the invention.
- the catalyst according to the invention can be used in powder form or advantageously shaped in a step f) in the form of beads, pellets, granules, or extrudates (hollow or non-hollow cylinders, multilobed cylinders with 2, 3 , 4 or 5 lobes for example, twisted cylinders), or rings, etc., these shaping operations being performed by conventional techniques known to those skilled in the art.
- said catalyst according to the invention is obtained at the end of a shaping step f) in the form of extrudates with a size of between 1 and 10 mm.
- said materials obtained are then, by example introduced into a device for rounding their surface, such as a bezel or other equipment allowing their spheronization.
- the catalyst according to the invention may optionally comprise, and therefore be mixed with, at least one porous oxide material having the role of binder so as to generate the physical properties of the catalysts suitable for process (mechanical strength, attrition resistance, etc.).
- Said porous oxide material is preferably a porous oxide material chosen from the group formed by silica, magnesia, clays, titanium oxide, lanthanum oxide, cerium oxide, boron phosphates and mixtures at least two of the oxides mentioned above. It is also possible to use titanates, for example titanates of zinc, nickel or cobalt. It is still possible to use simple, synthetic or natural clays of 2: 1 dioctahedral phyllosilicate or 3: 1 trioctahedral phyllosilicate type such as kaolinite, antigorite, chrysotile, montmorillonnite, beidellite, vermicutte, talc. , hectorite, saponite, laponite. These clays can be optionally delaminated. The various mixtures using at least two of the compounds mentioned above are also suitable for acting as binder.
- the binder used is silicic in nature.
- said silicic binder may be in the form of powders or colloidal solutions.
- said catalyst comprises from 5 to 60% by weight, and preferably from 10 to 30% by weight of silicic binder, the weight percentages being expressed relative to the total mass of said catalyst.
- At least one organic adjuvant is also mixed during said forming step f).
- the presence of said organic adjuvant facilitates extrusion shaping.
- Said organic adjuvant may advantageously be chosen from methylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, carboxymethylcellulose and polyvinyl alcohol.
- the proportion of said organic adjuvant is advantageously between 0 and 20% by weight, preferably between 0 and 10% by weight and preferably between 0 and 7% by weight, relative to the total weight of said shaped material.
- said heat treatment step can be repeated after shaping.
- At least one metal M 'chosen from the group constituted by the elements of groups 11 and 12 of the periodic table and their mixtures can be carried out according to all the methods known to those skilled in the art and to any what steps of synthesis and / or shaping of said catalyst according to the invention.
- the use of at least two separate metals M and optionally M '(ternary, quaternary systems, etc.) makes it possible to incorporate at least the additional metals M or M' at any stage of the process. synthesis and / or shaping said mixed oxide used as a catalyst according to the invention and this by all methods known to those skilled in the art.
- Another object of the invention is the use of the catalyst according to the invention for the conversion of a feedstock comprising at least ethanol into butadiene, resulting in significant performance advantages, in particular by increased stability.
- the representative conditions for this reaction are a temperature of between 300 and 400 ° C., preferably between 320 ° C.
- the space velocity is defined as the ratio between the mass flow rate of feed and the mass of catalyst.
- Example 1 Preparation of Catalyst A Based on 2% Ta / SiO (2% by weight relative to the weight of silica) obtained by dry impregnation of the tantalum precursor associated with the surface of a Davisil commercial silica 636 ( comparative)
- tantalum ethoxide (Ta (OCH 2 CH 3 ) 5 ) are diluted in 96 ml of ethanol. This solution is rapidly added dropwise and mixed with 60 g of Davisil 636 silica (SBET "500 m 2 / g, Vp" 0.9 ml / g and ⁇ "7 nm, particle size: 200-500 microns) 'to observe a wettability of the surface of the latter (dry impregnation). The solid is then placed in a saturated ethanol atmosphere for 3 hours, dried at 100 ° C. for 24 hours. Catalyst A is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- tetraethylorthosilicate TEOS, Si (OCH 2 CH 3 ) 4
- ethanol 150 ml of ethanol are added 12.5 ml of 68% (volume) nitric acid solution at room temperature. The whole is left stirring for 30 min. 0.66 g of tantalum ethoxide (Ta (OCH 2 CH 3 ) 5 ) are then added to the taste to taste in conditions inert to the previous mixture. 50 ml of a solution of ammonia at 14% (volume) are then added. The system becomes cloudy and a gel is formed. 19 ml of ethanol are then added to allow additional stirring for 3 hours.
- TEOS tetraethylorthosilicate
- Catalyst K is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- EXAMPLE 3 Preparation of catalyst C based on 2% Nb / SiO 2 (2% by weight relative to the weight of silica) obtained by dry impregnation of the niobium precursor associated with the surface of Davisil commercial silica 636 (comparative )
- niobium oxalate and ammonium pentahydrate are diluted in 80 ml of water. This solution is rapidly added dropwise and mixed with 50 g of Davisil 636 silica (SBET "500 m 2 / g, Vp" 0.9 ml / g and ⁇ ⁇ 7 nm, particle size: 200-500 microns) 'to observe a wettability of the surface of the latter (dry impregnation). The solid is then placed in an atmosphere saturated with water for 3 hours, dried at 100 ° C. for 24 hours. Catalyst C is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- nitric acid solution containing 55 ml of tetraethylorthosilicate (TEOS, Si (OCH 2 CH 3 ) 4 ) and 150 ml of ethanol are added 12.5 ml of 68% (volume) nitric acid solution at room temperature. The whole is left stirring for 30 min. 0.96 g of niobium ethoxide (Nb (OCH 2 CH 3 ) 5 ) are then added to the taste to taste under inert conditions in the previous mixture. 50 ml of a solution of ammonia at 14% (volume) are then added. The system becomes cloudy and a gel is formed. 19 ml of ethanol are then added to allow additional stirring for 3 hours.
- TEOS tetraethylorthosilicate
- Si Si (OCH 2 CH 3 ) 4
- tantalum ethoxide (Ta (OCH 2 CH 3 ) 5
- This solution is rapidly added dropwise and mixed with 30 g of the previously prepared solid to observe a wettability of the surface of the latter (dry impregnation).
- the solid is then placed in a saturated ethanol atmosphere for 3 hours, dried at 100 ° C. for 24 hours.
- Catalyst E is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- Example 6 Preparation of the mixed oxide catalyst Ta-Si-Zn F comprising 1% by weight of Zn metal and 2% by weight of Ta metal relative to the mass of the silica obtained synthesis of the Ta-Si mixed oxide by the modern metallo-organic sol-gel route and dry impregnation of said mixed oxide with the associated zinc precursor (according to the invention)
- tetraethylorthosilicate TEOS, Si (OCH 2 CH 3 ) 4
- ethanol 150 ml of ethanol are added 12.5 ml of 68% (volume) nitric acid solution at room temperature. The whole is left stirring for 30 min. 0.66 g of tantalum ethoxide (Ta (OCH 2 CH 3 ) 5) are then added to the taste to taste in conditions inert to the previous mixture. 50 ml of a solution of ammonia at 14% (volume) are then added. The system becomes cloudy and a gel is formed. 19 ml of ethanol are then added to allow additional stirring for 3 hours. The final gel is filtered, washed with ethanol and then dried at 100 ° C. for 24 hours. Catalyst K is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- TEOS tetraethylorthosilicate
- 0.91 g of zinc nitrate hexahydrate are diluted in 56 ml of water.
- This solution is rapidly added dropwise and mixed with 20 g of the mixed Ta-Si oxide (SBET - 710 m 2 / g, Vp ⁇ 1.42 ml / g and ⁇ ⁇ 11.7 nm), up to to observe a wettability of the surface of the latter (dry impregnation).
- the solid is then placed in an atmosphere saturated with water for 3 hours, dried at 100 ° C. for 24 hours.
- Catalyst F is obtained by calcining the dried solid under air at 550 ° C. for 4 hours.
- the reactor used in the following examples consists of a stainless steel tube 20 cm long and 10 mm in diameter.
- the reactor is first loaded with carborundum and then with the catalyst diluted in carborundum and finally with carborundum.
- Carborundum is inert to the charge and does not affect catalytic results; it makes it possible to position the catalyst in the isothermal zone of the reactor and to limit the risks of problems of transfer of heat and material.
- the temperature of the reactor is controlled with a tubular furnace with three heating zones.
- the liquid feed (mixture of ethanol and acetaldehyde in a ratio R) is injected via a double piston HPLC pump.
- the liquid stream is vaporized in the heated lines by a tracer before entering the reactor and is homogenized by passing through a static mixer.
- the products formed during the reaction are maintained in the vapor phase for online analysis by gas chromatography (PONA capillary columns and Carboxen 1010) to allow the most accurate identification of the hundreds of products formed.
- the catalyst is activated in situ under nitrogen at the test temperature. The specific operating conditions are described in the following examples.
- test conditions were as follows:
- the transformation test of the alcoholic charge was carried out at a temperature at a pressure of 0.15 MPa with a starting temperature of 340 ° C.
- the charge rate (and thus the pph) is adjusted for each catalyst so as to initially (at 340 ° C) achieve the desired conversion level.
- the temperature is gradually increased to compensate for deactivation of the catalyst and maintain a stable level of butadiene productivity.
- the test is stopped from the moment when the test temperature exceeds 375 ° C.
- the catalyst is regenerated by calcination under air.
- Regeneration conditions have been chosen to be the most representative of industrial regeneration.
- the conditions of the regeneration step are described in detail in Table 1 and the regeneration is carried out according to the diagram shown in Figure 1 which illustrates the schematic representation of the flow flow during the various phases.
- FIG. 1 schematically represents the mode of circulation of the fluids during the regeneration phase.
- the catalytic test / regeneration assembly is repeated 20 times so as to be able to extrapolate the life of the catalyst. In the following examples, this will correspond to the number of cycles that the catalyst can undergo before its productivity level reaches a critical level set at half of its initial level, that is to say at the level of the catalyst. just been prepared.
- the ethanol acetaldehyde ratio of the feedstock is set at 2.5 mol / mol, the test start temperature at 340 ° C. and the pressure at 0.15 MPa.
- the feed rate is set to achieve 45% conversion.
- the maintenance of butadiene productivity on the cycle is ensured by a regular increase in the temperature of the reactor.
- the productivity losses between each cycle reflect the catalyst aging rate
- Example catalyst 1 cycle 20 cycles after productivity
- the ethanol / acetaldehyde ratio of the feed is set at 24 mol / mol, the test start temperature at 340 ° C. and the pressure at 0.15 MPa.
- the feed rate is set to achieve 55% conversion.
- the maintenance of butadiene productivity on the cycle is ensured by a regular increase in the temperature of the reactor.
- the productivity losses between each cycle reflect the rate of aging of the catalyst.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1556664A FR3038849B1 (fr) | 2015-07-13 | 2015-07-13 | Catalyseur oxyde mixte mesoporeux comprenant du silicium |
| PCT/EP2016/065821 WO2017009105A1 (fr) | 2015-07-13 | 2016-07-05 | Catalyseur oxyde mixte mesoporeux comprenant du silicium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3322531A1 true EP3322531A1 (fr) | 2018-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16736075.9A Pending EP3322531A1 (fr) | 2015-07-13 | 2016-07-05 | Catalyseur oxyde mixte mesoporeux comprenant du silicium |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11213802B2 (fr) |
| EP (1) | EP3322531A1 (fr) |
| FR (1) | FR3038849B1 (fr) |
| RU (1) | RU2722158C2 (fr) |
| WO (1) | WO2017009105A1 (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2656602C1 (ru) * | 2017-03-31 | 2018-06-06 | Общество с ограниченной ответственностью "ЭТБ каталитические технологии" (ООО "ЭТБ КаТ") | Одностадийный способ получения бутадиена |
| JP6803289B2 (ja) * | 2017-03-31 | 2020-12-23 | 日揮グローバル株式会社 | エタノールからの1,3−ブタジエン製造触媒およびプロセス |
| WO2019131890A1 (fr) * | 2017-12-27 | 2019-07-04 | 積水化学工業株式会社 | Catalyseur ainsi que procédé de fabrication de celui-ci, et procédé de fabrication de composé diène mettant en oeuvre ledit catalyseur |
| CA3050795A1 (fr) * | 2018-08-03 | 2020-02-03 | Nova Chemicals Corporation | Catalyseurs de deshydrogenation oxydatifs |
| DE102019106698B4 (de) * | 2019-03-15 | 2025-01-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Katalytische Herstellung von Butadien |
| WO2020262486A1 (fr) * | 2019-06-25 | 2020-12-30 | 積水化学工業株式会社 | Catalyseur et procédé de production d'un composé diène |
| CN113926445A (zh) * | 2020-06-29 | 2022-01-14 | 中国石油化工股份有限公司 | 一种用于制备1,3-丁二烯的催化剂及其制备方法和应用 |
| CN113926446B (zh) * | 2020-06-29 | 2024-07-23 | 中国石油化工股份有限公司 | 一种可再生催化剂及其制备方法和应用 |
| CN111821940A (zh) * | 2020-07-30 | 2020-10-27 | 青岛华世洁环保科技有限公司 | 一种有机物分离材料及其制备方法 |
| CN114471524B (zh) * | 2020-10-23 | 2024-05-03 | 中国石油化工股份有限公司 | 用于制备1,3-丁二烯的催化剂、再生催化剂及制备方法 |
| JP7227209B2 (ja) * | 2020-11-30 | 2023-02-21 | 日揮グローバル株式会社 | 1,3-ブタジエン製造触媒 |
| KR20250046299A (ko) | 2022-08-02 | 2025-04-02 | 신도스 에스.에이. | 높은 유리한 중량 공간 시속을 갖는 알루미늄 함유 담체를 포함하는 1,3-부타디엔 생산용 촉매 |
| US20250276305A1 (en) | 2022-08-02 | 2025-09-04 | Synthos S.A. | Catalyst for the production of 1,3-butadiene giving a high yield based on a support comprising aluminium and sodium |
| TW202547600A (zh) * | 2024-02-07 | 2025-12-16 | 波蘭商西索斯公司 | 於1,3-丁二烯的生產具有高選擇性之包括鉭、鋁及鈉的負載型氧化物觸媒 |
| TW202600244A (zh) * | 2024-02-07 | 2026-01-01 | 波蘭商西索斯公司 | 於1,3-丁二烯的生產具有高產率之包括鉭的負載型氧化物觸媒 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2357855A (en) | 1941-12-15 | 1944-09-12 | Szukiewicz Waclaw | Method for producing butadiene |
| US2374433A (en) | 1942-06-08 | 1945-04-24 | Universal Oil Prod Co | Production of butadiene |
| US2421361A (en) | 1942-09-29 | 1947-05-27 | Carbide & Carbon Chem Corp | Process for making diolefins |
| US2438464A (en) | 1944-08-30 | 1948-03-23 | Rohm & Haas | Catalytic process for producing butadiene |
| US2447181A (en) | 1944-08-30 | 1948-08-17 | Rohm & Haas | Silica-magnesia catalyst and preparation thereof |
| US2436125A (en) * | 1944-08-30 | 1948-02-17 | Rohm & Haas | Silica-zirconia catalysts and method of preparation |
| US6107236A (en) * | 1998-04-14 | 2000-08-22 | Chevron Chemical Company Llc | Powders of silica-oxide and mixed silica-oxide and method of preparing same |
| DE10047642A1 (de) * | 2000-09-26 | 2002-04-11 | Basf Ag | Verfahren zur Dehydrierung von Kohlenwasserstoffen |
| KR101152768B1 (ko) * | 2010-04-22 | 2012-06-18 | 금호석유화학 주식회사 | 에탄올로부터 1,3-부타디엔 제조를 위한 나노 실리카계 촉매 및 이를 이용한 1,3-부타디엔의 제조방법 |
| RU2440962C1 (ru) | 2010-07-29 | 2012-01-27 | Общество с ограниченной ответственностью "УНИСИТ" (ООО "УНИСИТ") | Одностадийный способ получения бутадиена |
| WO2013125389A1 (fr) * | 2012-02-20 | 2013-08-29 | 株式会社ダイセル | Procédé de production de 1,3-butadiène |
| EP2712673A1 (fr) | 2012-09-28 | 2014-04-02 | LANXESS Deutschland GmbH | Procédé de fabrication de 1,3-butadiène |
| WO2014061917A1 (fr) | 2012-10-19 | 2014-04-24 | 한국화학연구원 | Catalyseur à base de silice mésoporeuse régulière pour préparer du 1,3-butadiène à partir d'éthanol et procédé de préparation de 1,3-butadiène l'employant |
| RU2514425C1 (ru) * | 2012-11-16 | 2014-04-27 | Открытое акционерное общество Научно-исследовательский институт "Ярсинтез" (ОАО НИИ "Ярсинтез") | Катализатор для получения бутадиена превращением этанола |
| CA2908655C (fr) | 2013-05-07 | 2016-08-02 | Synthos S.A. | Procede de production de 1,3-butadiene |
| WO2014199349A2 (fr) | 2013-06-13 | 2014-12-18 | Basf Se | Silicates amorphes imprégnés de métal pour la conversion sélective de l'éthanol en butadiène |
-
2015
- 2015-07-13 FR FR1556664A patent/FR3038849B1/fr active Active
-
2016
- 2016-07-05 RU RU2018105073A patent/RU2722158C2/ru active
- 2016-07-05 US US15/744,106 patent/US11213802B2/en active Active
- 2016-07-05 EP EP16736075.9A patent/EP3322531A1/fr active Pending
- 2016-07-05 WO PCT/EP2016/065821 patent/WO2017009105A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| RU2722158C2 (ru) | 2020-05-27 |
| FR3038849A1 (fr) | 2017-01-20 |
| RU2018105073A (ru) | 2019-08-14 |
| US11213802B2 (en) | 2022-01-04 |
| WO2017009105A1 (fr) | 2017-01-19 |
| FR3038849B1 (fr) | 2019-11-29 |
| US20180200694A1 (en) | 2018-07-19 |
| RU2018105073A3 (fr) | 2019-12-31 |
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