WO2018190641A1 - 산화적 탈수소화 반응용 촉매, 이의 제조방법 및 이를 이용한 산화적 탈수소화방법 - Google Patents
산화적 탈수소화 반응용 촉매, 이의 제조방법 및 이를 이용한 산화적 탈수소화방법 Download PDFInfo
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- 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
- C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
- C07C5/48—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with oxygen as an acceptor
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- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/005—Spinels
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- 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
- 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
- B01J23/80—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 zinc, cadmium or mercury
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0221—Coating of particles
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- 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
- 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
- B01J37/031—Precipitation
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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
- C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
- C07C2521/04—Alumina
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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
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/74—Iron group metals
- C07C2523/745—Iron
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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
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
- C07C2523/80—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36 with zinc, cadmium or mercury
Definitions
- the present invention relates to a catalyst for an oxidative dehydrogenation reaction, a method for preparing the same, and a method for oxidative dehydrogenation using the same, and more particularly, by coating a porous support with a metal oxide active in an oxidative dehydrogenation reaction within a specific content range.
- the preparation method thereof and the oxidative dehydrogenation method using the catalyst which can improve the durability of the catalyst and can be used in the manufacture of butadiene, which can greatly improve the conversion of butene, selectivity of butadiene, yield, etc. It is about.
- 1,3-butadiene is one of the main raw materials of synthetic rubber, whose price fluctuates rapidly in connection with supply and demand in the petrochemical industry.
- Methods for producing 1,3-butadiene include naphtha cracking, direct dehydrogenation of normal butenes, and oxidative dehydrogenation of normal butenes.
- the oxidative dehydrogenation of normal butene is a reaction in which butene and oxygen react to produce 1,3-butadiene and water in the presence of a metal oxide catalyst.
- stable water is produced, which is very thermodynamically advantageous.
- the oxidative dehydrogenation of normal butene is exothermic, unlike direct dehydrogenation, a high yield of 1,3-butadiene can be obtained while saving energy by operating the reaction process at a low temperature.
- the production of carbon deposits that shortens the catalyst life by poisoning the catalyst is small, and there is an advantage that it is easy to remove them and is very suitable as a commercialization process.
- the metal oxide catalyst for oxidative dehydrogenation is extruded into pellets with increased mechanical strength to improve the ease of filling in a fixed bed reactor and the durability of the catalyst.
- Excess organic-inorganic binder is mixed to improve.
- the yield, selectivity, etc. of butadiene are reduced due to side reactions caused by the binder, and there are still problems in that the active material is lost when the catalyst is filled, and a method for solving these problems is being sought.
- the present invention has been made to solve the problems of the prior art, by coating a metal oxide active in the oxidative dehydrogenation reaction in a specific method within a specific content range to improve the durability, ease of filling, etc. of the catalyst, ultimate An object of the present invention is to provide a catalyst for oxidative dehydrogenation that can improve conversion, selectivity, yield, and the like in the production of butadiene.
- the present invention provides a catalyst for oxidative dehydrogenation reaction, characterized in that the oxidative dehydrogenation reaction active ingredient AB 2 O 4 is a catalyst coated on a porous support satisfying the following formula (1) to provide.
- X is an amount of AB 2 O 4 or more and less than 5 to less than 30, and A is copper (Cu), radium (Ra), barium (Ba), strontium (Sr), calcium (Ca), At least one selected from the group consisting of beryllium (Be), zinc (Zn), magnesium (Mg), manganese (Mn) and cobalt (Co), B is iron (Fe), and Y is a content value of the porous support. Greater than 70 to 95 or less.)
- the present invention comprises the steps of preparing an AB 2 O 4 powder which is an active ingredient oxidative dehydrogenation reaction; Dispersing the AB 2 O 4 powder in distilled water to prepare a catalyst slurry; Coating the catalyst slurry on a porous support; And drying to obtain a catalyst for oxidative dehydrogenation by drying after the coating.
- the method provides a method for preparing a catalyst for oxidative dehydrogenation, wherein the prepared catalyst satisfies Equation 1. .
- the present invention comprises the step of performing an oxidative dehydrogenation reaction while passing a reactant comprising a C4 mixture containing normal butene and oxygen to the reactor filled with the catalyst for the oxidative dehydrogenation reaction. It provides a method for producing butadiene.
- the present invention while it is easy to charge the catalyst in the reactor, it is possible to minimize the loss of active ingredients during the filling, improve the durability of the catalyst, and ultimately used in the production of butadiene, butene conversion, butadiene selectivity or yield Etc. can provide a significant improvement.
- FIG. 1 is a photograph showing the surface and cross-section of the catalyst for the oxidative dehydrogenation reaction prepared according to an embodiment of the present invention.
- the catalyst for oxidative dehydrogenation according to the present invention is characterized by satisfying Equation 1 below as a catalyst coated with an active ingredient of AB 2 O 4, which is an oxidative dehydrogenation reaction.
- X is a content of AB 2 O 4 or more and less than 5 to less than 30,
- A is a divalent cation metal, and specific examples are copper (Cu), radium (Ra), barium (Ba), and strontium.
- Sr copper
- Ca radium
- Ba barium
- strontium strontium
- Ca calcium
- Be beryllium
- Zn zinc
- Mg manganese
- Mn manganese
- Co cobalt
- B iron
- Y is the content value of the porous support more than 70 to 95 or less.
- X may be, for example, 5 or more and less than 30, or 5 to 28, and more preferably 7 to 27, 7 to 20, 7 to 18, or 7 to 14, within this range.
- Excellent reaction efficiency has the advantage of improving the yield, selectivity, conversion and the like.
- Y may be, for example, more than 70 to 95 or less, or 72 to 95, and more preferably 73 to 93, 80 to 93, 82 to 93, or 86 to 93, within this range.
- the proper amount of catalyst is used, and the reaction efficiency is excellent, but the heat of reaction is easily controlled, and ultimately, the yield, selectivity, etc. of butadiene are improved.
- AB 2 O 4 is a metal oxide that is active in an oxidative dehydrogenation reaction, for example, zinc ferrite (ZnFe 2 O 4 ) in which A is Zn and B is Fe, which is an oxidative dehydrogenation of normal butene. While showing excellent activity in the reaction, there is an advantage that the selectivity of 1,3-butadiene is suppressed by suppressing side reactions.
- ZnFe 2 O 4 zinc ferrite
- the AB 2 O 4 may be, for example, 250 ⁇ m or less, 0.1 to 250 ⁇ m, 0.1 to 75 ⁇ m, 45 ⁇ m or less, 45 to 250 ⁇ m, or 100 to 250 ⁇ m, preferably 70 ⁇ m or less, It may be 50 ⁇ m or less or 45 ⁇ m or less, and the activity of the catalyst is excellent within this range, thereby improving the reaction efficiency.
- the porous support may have an average particle diameter of, for example, 3 mm or more, 3 to 9 mm or 4 to 6 mm, preferably 3 to 5 mm or 6 to 9 mm, and excellent reaction efficiency within this range, resulting in high conversion and selectivity. There is an effect that the back is improved.
- the porous support may have an average pore size of, for example, 50 to 200 ⁇ m or 100 to 150 ⁇ m, and the coating of the AB 2 O 4 powder within this range is easy and the powder is not detached.
- the average particle diameter and the average pore size may be measured by, for example, a scanning electron microscope.
- the packing density of the porous support is, for example, 0.4 to 3 g / cm 3 or more than 0.4 to less than 3 g / cm 3 , preferably 0.7 to 2.0 g / cm 3 , more preferably 0.8 to 1.5 g. It may be / cm 3 , within this range is excellent in oxidative dehydrogenation reaction efficiency, easy to control the heat of reaction, ultimately has the effect of improving the yield, selectivity, etc. of butadiene.
- the packing density is calculated by dividing the mass capable of filling 100 cc into the tubular measuring cylinder by the volume value of 100 cc.
- the shape of the porous support may preferably be spherical, pellet or hollow, in which case the reaction efficiency is excellent to provide an effect of improving yield, selectivity, conversion, and the like.
- the porous support may be at least one selected from the group consisting of, for example, alumina, silica, and zirconia, and preferably includes alumina or silica, in which case the mechanical strength for filling the reactor is satisfied and the side reaction is less effective. There is.
- the catalyst is AB 2 O 4 oxidative dehydrogenation activity
- An organic-inorganic binder may be further included for the purpose of improving the cohesion of the powder, and in this case, the binder content is 30 parts by weight or less, 0.1 to 20 parts by weight or 0.1 to 10 parts by weight, based on 100 parts by weight of AB 2 O 4. Within this range, it is possible to provide an effect of improving the wear resistance of the catalyst without significantly reducing the efficiency of the oxidative dehydrogenation reaction.
- the binder may include, for example, aluminum silicate, methyl cellulose, hydroxypropyl methyl cellulose, or both.
- the binder may have high wear resistance without significantly reducing the efficiency of the oxidative dehydrogenation reaction. There is an effect to be improved.
- the catalyst may be binder-free, in which case it does not cause side reactions caused by the binder, thereby providing an effect of greatly improving the conversion of normal butene, the selectivity of butadiene, and omitting the input of some components.
- the catalyst manufacturing process may be shortened or the cost may be reduced.
- binder-free means omitting an organic binder or an inorganic binder and / or prepared therefrom in preparing a catalyst.
- the method for preparing a catalyst for the oxidative dehydrogenation reaction of the present disclosure may include, for example, preparing an AB 2 O 4 powder which is an active ingredient of an oxidative dehydrogenation reaction; Dispersing the AB 2 O 4 powder in distilled water to prepare a catalyst slurry; Coating the catalyst slurry on a porous support; And drying to obtain a catalyst for oxidative dehydrogenation by drying after the coating.
- the catalyst prepared including the step may satisfy Equation 1.
- Equation 1 the catalyst manufacturing method will be described in detail for each step.
- preparing the AB 2 O 4 powder which is an active ingredient of an oxidative dehydrogenation reaction, includes, for example, preparing a coprecipitation bath; Preparing an aqueous metal precursor solution comprising an A metal precursor and a B metal precursor; Co-precipitating A metal and B metal by adding the aqueous metal precursor solution dropwise to a basic aqueous solution such as aqueous ammonia or sodium hydroxide solution to maintain a pH of 7 to 10 and the coprecipitation bath; And drying and firing the coprecipitation solution after the coprecipitation is completed.
- a coprecipitation bath Preparing an aqueous metal precursor solution comprising an A metal precursor and a B metal precursor
- Co-precipitating A metal and B metal by adding the aqueous metal precursor solution dropwise to a basic aqueous solution such as aqueous ammonia or sodium hydroxide solution to maintain a pH of 7 to 10 and the coprecipitation bath.
- the basic aqueous solution may be at least one selected from, for example, aqueous ammonia and aqueous sodium hydroxide solution, preferably aqueous ammonia.
- the A metal precursor and the B metal precursor are not particularly limited as long as they are metal precursors commonly used in the art, and preferably, may be selected from nitrates, sulfates, chlorides, carbonates and acetates of A or B metals. Hydrate forms may also be possible.
- the A metal precursor may be, for example, a zinc precursor exhibiting high activity in an oxidative dehydrogenation reaction, and more specifically, at least one selected from zinc nitrate, zinc chloride, zinc sulfate, and the like.
- the B metal precursor may be, for example, an iron precursor, and more specifically, may be one or more selected from iron nitrate, iron chloride, and the like, but is not necessarily limited thereto.
- the pH is 7-10, 7-9, or 9 to minimize the formation of a crystal structure inactive for oxidative dehydrogenation and to stably coprecipitation. It may be desirable to maintain 7.5 to 8.5.
- the A metal precursor and the B metal precursor may be preferably adjusted so that the molar ratio of the A metal to the B metal is, for example, 1: 1.5 to 1: 3, and the oxidative dehydrogenation reaction activity is within this range.
- This excellent AB 2 O 4 catalyst can be prepared.
- the metal precursor aqueous solution When the metal precursor aqueous solution is added dropwise, it may be preferable to dropwise add the coprecipitation tank at a constant rate for sufficient coprecipitation of the A metal and the B metal.
- the coprecipitation tank After the dropping of both the A metal precursor and the B metal precursor dropping so that the coprecipitation is sufficiently made; ferment; Or stirring and ripening; It may further comprise the step of.
- the coprecipitation solution is filtered to separate solid components, and then dried and calcined to obtain a powdery AB 2 O 4 , in which case impurities are removed to obtain high purity AB 2 O 4 powder can be obtained, and the catalytic activity is improved.
- drying and firing is not particularly limited as long as it is within the range that is commonly practiced in the art, for example, drying may be performed at 60 to 200 °C for 10 to 24 hours, firing is 350 to 800 °C or 400 to 700 °C The temperature may be performed for 1 to 40 hours or 3 to 18 hours.
- the AB 2 O 4 powder is ground, for example 250 ⁇ m or less, 0.1 to 250 ⁇ m, 0.1 to 75 ⁇ m
- the method may further include classifying to have a particle size of 45 ⁇ m or less, 45 to 250 ⁇ m, or 100 to 250 ⁇ m, preferably 70 ⁇ m or less, 50 ⁇ m or less, or 45 ⁇ m or less, wherein the AB 2 O 4 powder
- the average particle diameter is in the above range, the catalytic activity is excellent, there is an effect that the conversion of butenes, butadiene selectivity and the like is improved.
- the pulverization and classification may be performed by applying mechanical force to make the powder smaller, and then obtaining a AB 2 O 4 powder having a desired average particle diameter, and may be a conventional pulverization and classification method or apparatus, and is not particularly limited.
- the AB 2 O 4 powder After the AB 2 O 4 powder is prepared, it is dispersed in distilled water to prepare, for example, a catalyst slurry having a concentration of 5 to 60% by weight, preferably 5 to 35% by weight, more preferably 10 to 30% by weight. .
- a catalyst slurry having a concentration of 5 to 60% by weight, preferably 5 to 35% by weight, more preferably 10 to 30% by weight.
- concentration of the catalyst slurry is within the above range, there is an effect of providing a catalyst having excellent activity while having a simple coating process to be described later.
- the catalyst slurry may further include one or more binders selectively selected from aluminum silicate, methyl cellulose, and hydroxypropyl methyl cellulose as necessary, and the binder may be 30 parts by weight based on 100 parts by weight of AB 2 O 4 . It may be added in the following or 0.1 to 20 parts by weight.
- the catalyst manufacturing method may be binder-free (free) that does not include a binder, and in this case, no side reaction by the binder is generated when the butadiene is produced, thereby improving the selectivity, yield, and the like of butadiene.
- the method of coating the catalyst slurry on the porous support is not particularly limited in the case of a method of coating the catalyst slurry on the porous support, which is commonly used in the art, for example, dip coating, wash coating, spray coating, Impregnation and the like.
- the method includes the step of coating the catalyst slurry by adding a porous support to a coating extruder, an impregnator, a rotating chamber or a mixer, and operating the catalyst slurry.
- a porous support to a coating extruder, an impregnator, a rotating chamber or a mixer, and operating the catalyst slurry.
- the coating method of the catalyst slurry during the coating is not particularly limited, but may be a batch, multi-stage, continuous, spray, spray, etc., multi-stage, continuous, spraying to minimize the waste of the catalyst and uniform coating Dispensing, spraying and the like are advantageous.
- the coating may be carried out in the range of 15 to 90 °C or 50 to 80 °C for example.
- the catalyst for the oxidative dehydrogenation reaction of the present disclosure may be used in the reaction for preparing 1,3-butadiene from normal butene, and the oxidative dehydrogenation method of the present disclosure will be described in detail below.
- the oxidative dehydrogenation method of the present disclosure includes performing an oxidative dehydrogenation reaction while passing a reactant comprising oxygen and a C4 mixture containing normal butene to a reactor filled with the catalyst for oxidative dehydrogenation reaction. It may be characterized by.
- the oxidative dehydrogenation method of the present disclosure may include: i) filling a reactor with a catalyst for oxidative dehydrogenation reaction; And ii) carrying out an oxidative dehydrogenation reaction while continuously passing a reactant comprising a C4 mixture containing normal butene and oxygen into the catalyst layer of the reactor filled with the catalyst.
- the oxidative dehydrogenation method of the present disclosure may be, for example, a method for preparing butadiene.
- the catalyst may be charged to the reactor in a fixed bed.
- the reactor is not particularly limited, and as a preferred example, a metal tubular reactor, a multi-tubular reactor, a plate-type reactor, or the like may be used.
- the catalyst may be filled with, for example, 10 to 90% by volume of the reactor internal volume.
- the C4 mixture includes, for example, at least one normal butene selected from 2-butene (trans-2-Butene, cis-2-Butene) and 1-butene (1-Butene), and optionally normal butane or C4 raffinate. It may further comprise -3.
- the reactant may further include one or more selected from, for example, air, nitrogen, steam, and carbon dioxide, and preferably further include nitrogen and steam.
- the reactants may include C4 mixture, oxygen, steam, and nitrogen in a range of 1: 0.1 to 1.5: 1 to 15: 0.5 to 10, 1: 0.5 to 1.2: 5 to 12: 0.5 to 5, and 1: 1.0 to 1.2: 5. 12: 0.5-5, or 1: 1.2-1.5: 5-12: 0.5-5.
- the butadiene production method according to the present invention has an advantage in that the reaction efficiency is excellent even when using a small amount of steam to 1 to 10 or 5 to 10 moles compared to 1 mole of the C4 mixture, there is little waste water generation, ultimately the waste water treatment costs Of course, it provides the effect of reducing the energy consumed in the process.
- the oxidative dehydrogenation reaction can be carried out, for example, at a reaction temperature of 250 to 500 ° C., 300 to 450 ° C., 320 to 400 ° C. or 330 to 380 ° C., and within this range without significantly increasing energy costs. Excellent efficiency can provide butadiene with high productivity.
- the oxidative dehydrogenation reaction of n as an example - based on the butene 50 to 2000h -1, from 50 to 1500 h -1, or 50 to 1000 h -1 of the space velocity: can be done by (GHSV Gas Hourly Space Velocity) and In this range, the reaction efficiency is excellent, and thus the conversion, selectivity, and yield are excellent.
- aqueous metal precursor solution containing 2 L of distilled water, 288.456 g of zinc chloride (ZnCl 2 ) and 1132.219 g of iron chloride (FeCl 3 ) was prepared.
- a 9 wt% aqueous ammonia solution was added so that the pH of the prepared metal precursor solution was added dropwise to a coprecipitation tank prepared with 2 L of distilled water.
- all of the metal precursor solution was added dropwise while stirring using a stirrer, and then aged for 1 hour, and then the precipitated solution was filtered to separate the precipitate.
- the separated precipitate was dried for 16 hours and then calcined at 650 ° C. to obtain a ZnFe 2 O 4 powder, and the powder obtained was ground.
- a catalyst slurry having a concentration of about 10 to 30 wt% was prepared by dispersing ZnFe 2 O 4 powder weighed to have the ratio shown in Table 1 in distilled water.
- the prepared catalyst slurry was coated on alumina balls having an average particle diameter of 5 mm and a packing density of 1.1 g / cm 3 . Coating was carried out within a range of 50 to 80 ° C. in the cylinder or chamber. After the coating was completed, the coating catalyst was prepared by drying in an oven at 90 to 120 °C so that distilled water can be evaporated.
- a photograph showing the surface and cross section of the prepared coating catalyst is shown in FIG. 1. Referring to Figure 1, it can be seen that the coating catalyst according to the present invention is characterized in that the active ingredient (ZnFe 2 O 4 ) is evenly coated not only on the surface of the porous support but also internal pores.
- Oxidative dehydrogenation of butene was carried out using the coating catalyst prepared as described above, and the specific reaction conditions are as follows.
- the proportion of reactants and gas space velocity (GHSV) are based on normal butenes in the C4 mixture.
- C4 mixture containing trans-2-butene and cis-2-butene, oxygen, steam, and nitrogen were mixed in a molar ratio of 1: 1: 5: 4, and the amount of C4 mixture, oxygen, and nitrogen was mass flow rate. Controlled using a regulator, the rate of infusion of steam was controlled using a liquid pump.
- the coating catalyst prepared above was charged to the tubular reactor in a fixed bed. The injection rate of the reactants was set to the amount of catalyst so that the space velocity (GHSV) is 120h -1 based on the normal butene in the C4 mixture, and the reaction temperature was set as shown in Table 1 below.
- a coating catalyst was prepared in the same manner as in the above example, except that the content of ZnFe 2 O 4 coated on the alumina ball was adjusted to 3 wt% in the above example, and an oxidative dehydrogenation reaction was performed.
- a coating catalyst was prepared in the same manner as in the above example, except that the content of ZnFe 2 O 4 coated on the alumina ball was adjusted to 30 wt% in the above embodiment. In this case, after the coating was completed, the ZnFe 2 O 4 powder was released from the alumina ball and the coating was not maintained, and thus it was impossible to apply the oxidative dehydrogenation reaction.
- the coating catalyst according to the present invention has a high activity of the catalyst in a wide temperature range within the range of 7 to 27wt% of the active ingredient, the conversion of butene, 1,3-butadiene It can be confirmed that the selectivity, yield and the like are excellent.
- the coating catalyst of Reference Example 1 including the binder had a high selectivity of CO X as a side reaction material.
- a coating catalyst was prepared in the same manner as in Example 3, except that the support having a packing density of 3 g / cm 3 was used in Example 3, and an oxidative dehydrogenation reaction was performed.
- a coating catalyst was prepared in the same manner as in Example 3 except for using a support having a packing density of 0.4 g / cm 3 in Example 3, and an oxidative dehydrogenation reaction was performed.
- a coating catalyst was prepared in the same manner as in Example 3, except that the support having a packing density of 0.8 g / cm 3 was used in Example 3, and an oxidative dehydrogenation reaction was performed.
- a coating catalyst was prepared in the same manner as in Example 3, except that the support having a packing density of 1.5 g / cm 3 was used in Example 3, and an oxidative dehydrogenation reaction was performed.
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Abstract
Description
| 반응조건 | GHSV / 부텐:산소:스팀:질소 몰비 = 120 / 1:1:5:4 | |||||||
| 구분 | 실시예 | 비교예 | 참조예 | |||||
| 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | |
| X(ZnFe2O4 함량, wt%) | 7 | 9 | 14 | 18 | 27 | 4* | 3 | 14 |
| 반응온도(℃) | 385 | 355 | 345 | 335 | 325 | 350 | 385 | 400 |
| 부텐 전환율(%) | 93.9 | 88.4 | 88.3 | 86.4 | 82.7 | 87.6 | 30.4 | 74 |
| 1,3-부타디엔 선택도(%) | 89.7 | 88.6 | 88.5 | 88.5 | 86.6 | 88.4 | 93.2 | 84.9 |
| 1,3-부타디엔 수율(%) | 84.2 | 78.3 | 78.1 | 76.5 | 71.6 | 77.4 | 28.4 | 63 |
| COX 선택도(%) | 9.5 | 10.0 | 10.1 | 10.0 | 12.0 | 9.5 | 5.0 | 13.8 |
| 반응조건 | GHSV / 부텐:산소:스팀:질소 몰비 = 120 / 1 : 1 : 5 : 1 | |
| 구분 | 추가 실시예 | |
| 1 | 2 | |
| 부텐 전환율(%) | 49.0 | 80.8 |
| 1,3-부타디엔 선택도(%) | 94.6 | 86.7 |
| 1,3-부타디엔 수율(%) | 46.3 | 70.0 |
| COX 선택도(%) | 4.1 | 12.0 |
| 반응조건 | GHSV / 부텐:산소:스팀:질소 몰비 = 120 / 1 : 1 : 5 : 1 | |
| 구분 | 추가 실시예 | |
| 3 | 4 | |
| 부텐 전환율(%) | 86.5 | 86.7 |
| 1,3-부타디엔 선택도(%) | 88.6 | 87.5 |
| 1,3-부타디엔 수율(%) | 76.6 | 75.9 |
| COX 선택도(%) | 10.0 | 11.2 |
Claims (16)
- 산화적 탈수소화 반응 활성성분인 AB2O4가 다공성 지지체에 코팅된 촉매로 하기 수학식 1[수학식 1]X wt% + Y wt% = 100 wt%(상기 수학식 1에서 X는 AB2O4의 함량값으로 5 이상 내지 30 미만이고, A는 구리(Cu), 라듐(Ra), 바륨(Ba), 스트론튬(Sr), 칼슘(Ca), 베릴륨(Be), 아연(Zn), 마그네슘(Mg), 망간(Mn) 및 코발트(Co)로 이루어진 군으로부터 선택된 1종 이상이고, B는 철(Fe)이며, Y는 다공성 지지체의 함량값으로 70 초과 내지 95 이하이다.)을 만족하는 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 AB2O4는 A가 아연(Zn)이고, B가 철(Fe)인 아연 페라이트 촉매인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 AB2O4는 평균입경이 250㎛ 이하인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 다공성 지지체는 평균입경이 3 mm 이상이고, 구형, 펠렛 또는 중공형인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 다공성 지지체는 알루미나, 실리카 및 지르코니아로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 다공성 지지체는 평균기공크기가 50 내지 200㎛인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 다공성 지지체는 패킹밀도(packing density)가 0.4 내지 3 kg/m3인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 촉매는 바인더로 알루미늄-실리케이트, 메틸셀룰로오스, 하이드록시프로필메틸셀룰로오스로부터 선택된 1종 이상을 더 포함하는 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 제 1항에 있어서,상기 촉매는 바인더-프리(free)인 것을 특징으로 하는산화적 탈수소화 반응용 촉매.
- 산화적 탈수소화 반응 활성성분인 AB2O4 분말을 제조하는 단계; 상기 AB2O4 분말을 증류수에 분산시켜 촉매 슬러리를 제조하는 단계; 상기 촉매 슬러리를 다공성 지지체에 코팅하는 단계; 및 상기 코팅 후 건조시켜 산화적 탈수소화 반응용 촉매를 수득하는 단계;를 포함하고,제조된 촉매는 하기 수학식 1을 만족하는 것을 특징으로 하는산화적 탈수소화 반응용 촉매의 제조방법.[수학식 1]X wt% + Y wt% = 100 wt%(상기 수학식 1에서 X는 AB2O4의 함량값으로 5 이상 내지 30 미만이고, A는 구리(Cu), 라듐(Ra), 바륨(Ba), 스트론튬(Sr), 칼슘(Ca), 베릴륨(Be), 아연(Zn), 마그네슘(Mg), 망간(Mn) 및 코발트(Co)로 이루어진 군으로부터 선택된 1종 이상이고, B는 철(Fe)이며, Y는 다공성 지지체의 함량값으로 70 초과 내지 95 이하이다.)
- 제 10항에 있어서,상기 AB2O4 분말은, A 금속 전구체 및 B 금속 전구체를 포함하는 금속 전구체 수용액을 준비하는 단계; 상기 금속 전구체 수용액을, pH를 7 내지 10으로 유지시키기 위한 염기성 수용액과 공침조에 적가하여 A 금속과 B 금속을 공침시키는 단계; 및 상기 공침이 완료된 후 공침 용액을 건조하고 소성하는 단계;를 포함하여 제조되는 것을 특징으로 하는산화적 탈수소화 반응용 촉매의 제조방법.
- 제 11항에 있어서,상기 염기성 수용액은 암모니아수 또는 수산화나트륨 수용액 중에서 선택된 1종 이상인 것을 특징으로 하는산화적 탈수소화 반응용 촉매의 제조방법.
- 제 10항에 있어서,상기 AB2O4 분말을 제조하는 단계와 상기 촉매 슬러리를 제조하는 단계의 사이에 상기 AB2O4 분말을 분쇄하고, 250 ㎛ 이하의 입자크기를 갖도록 분급하는 단계를 더 포함하는 것을 특징으로 하는산화적 탈수소화 반응용 촉매의 제조방법.
- 제 10항에 있어서,상기 촉매는 바인더-프리(free)인 것을 특징으로 하는산화적 탈수소화 반응용 촉매 조성물의 제조방법.
- 제 1항 내지 제 9항 중 어느 한 항에 따른 산화적 탈수소화 반응용 촉매가 충진된 반응기에 노르말 부텐을 함유하는 C4 혼합물 및 산소를 포함하는 반응물을 통과시키면서 산화적 탈수소화 반응을 수행하는 단계를 포함하는 것을 특징으로 하는산화적 탈수소화 방법.
- 제 15항에 있어서,상기 반응물은 C4 혼합물, 산소, 스팀 및 질소를 1:0.01~1.5:1~15:0.5~10의 몰비로 포함하는 것을 특징으로 하는산화적 탈수소화 방법.
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| JP2019502067A JP6729871B2 (ja) | 2017-04-12 | 2018-04-12 | 酸化的脱水素化反応用触媒、その製造方法及びそれを用いた酸化的脱水素化方法 |
| EP18784965.8A EP3441139B1 (en) | 2017-04-12 | 2018-04-12 | Catalyst for oxidative dehydrogenation reaction, method for producing same, and oxidative dehydrogenation method using same |
| CN201880002186.0A CN109310994A (zh) | 2017-04-12 | 2018-04-12 | 用于氧化脱氢的催化剂、催化剂的制备方法和使用催化剂进行氧化脱氢的方法 |
| US16/301,403 US10888844B2 (en) | 2017-04-12 | 2018-04-12 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst |
| US17/117,406 US11660584B2 (en) | 2017-04-12 | 2020-12-10 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst |
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| KR1020180042150A KR102239677B1 (ko) | 2017-04-12 | 2018-04-11 | 산화적 탈수소화 반응용 촉매, 이의 제조방법 및 이를 이용한 산화적 탈수소화방법 |
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| US17/117,406 Division US11660584B2 (en) | 2017-04-12 | 2020-12-10 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3766576A4 (en) * | 2018-03-13 | 2021-04-14 | Lg Chem, Ltd. | METHOD OF MANUFACTURING A FERRITE-BASED CATALYST AND METHOD OF MANUFACTURING BUTADIENE USING THEME |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998760A (en) * | 1974-09-03 | 1976-12-21 | Petro-Tex Chemical Corporation | Modified zinc ferrite oxidative dehydrogenation catalysts |
| KR100847206B1 (ko) | 2007-05-10 | 2008-07-17 | 에스케이에너지 주식회사 | 아연 페라이트 촉매, 이의 제조방법 및 이를 이용한1,3-부타디엔의 제조방법 |
| KR101071230B1 (ko) * | 2009-10-01 | 2011-10-10 | 서울대학교산학협력단 | 황산화 아연 페라이트 촉매, 그 제조방법 및 상기 촉매를 이용한 1,3-부타디엔 제조방법 |
| KR20120009687A (ko) * | 2010-07-20 | 2012-02-02 | 에스케이이노베이션 주식회사 | 혼성 망간 페라이트가 코팅된 촉매, 이의 제조방법 및 이를 이용한 1,3-부타디엔의 제조방법 |
| KR20120073998A (ko) * | 2010-12-27 | 2012-07-05 | 금호석유화학 주식회사 | 에탄올로부터 아세트알데하이드를 합성하기 위한 탈수소화 반응용 구리계 촉매 및 이의 제조방법 |
| KR101340620B1 (ko) | 2013-05-14 | 2013-12-31 | 금호석유화학 주식회사 | 허니컴 구조의 페라이트 금속산화물 촉매 성형체와 그의 제조방법 및 이를 이용한 1,3-부타디엔 제조방법 |
| KR20140082869A (ko) * | 2012-12-18 | 2014-07-03 | 에스케이이노베이션 주식회사 | 혼성 망간 페라이트 허니컴형 촉매, 이의 제조방법 및 이를 이용한 1,3-부타디엔의 제조방법 |
| KR20170138124A (ko) * | 2016-06-07 | 2017-12-15 | 주식회사 엘지화학 | 산화적 탈수소화 반응 촉매 및 이의 제조방법 |
-
2018
- 2018-04-12 WO PCT/KR2018/004269 patent/WO2018190641A1/ko not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998760A (en) * | 1974-09-03 | 1976-12-21 | Petro-Tex Chemical Corporation | Modified zinc ferrite oxidative dehydrogenation catalysts |
| KR100847206B1 (ko) | 2007-05-10 | 2008-07-17 | 에스케이에너지 주식회사 | 아연 페라이트 촉매, 이의 제조방법 및 이를 이용한1,3-부타디엔의 제조방법 |
| KR101071230B1 (ko) * | 2009-10-01 | 2011-10-10 | 서울대학교산학협력단 | 황산화 아연 페라이트 촉매, 그 제조방법 및 상기 촉매를 이용한 1,3-부타디엔 제조방법 |
| KR20120009687A (ko) * | 2010-07-20 | 2012-02-02 | 에스케이이노베이션 주식회사 | 혼성 망간 페라이트가 코팅된 촉매, 이의 제조방법 및 이를 이용한 1,3-부타디엔의 제조방법 |
| KR20120073998A (ko) * | 2010-12-27 | 2012-07-05 | 금호석유화학 주식회사 | 에탄올로부터 아세트알데하이드를 합성하기 위한 탈수소화 반응용 구리계 촉매 및 이의 제조방법 |
| KR20140082869A (ko) * | 2012-12-18 | 2014-07-03 | 에스케이이노베이션 주식회사 | 혼성 망간 페라이트 허니컴형 촉매, 이의 제조방법 및 이를 이용한 1,3-부타디엔의 제조방법 |
| KR101340620B1 (ko) | 2013-05-14 | 2013-12-31 | 금호석유화학 주식회사 | 허니컴 구조의 페라이트 금속산화물 촉매 성형체와 그의 제조방법 및 이를 이용한 1,3-부타디엔 제조방법 |
| KR20170138124A (ko) * | 2016-06-07 | 2017-12-15 | 주식회사 엘지화학 | 산화적 탈수소화 반응 촉매 및 이의 제조방법 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3441139A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3766576A4 (en) * | 2018-03-13 | 2021-04-14 | Lg Chem, Ltd. | METHOD OF MANUFACTURING A FERRITE-BASED CATALYST AND METHOD OF MANUFACTURING BUTADIENE USING THEME |
| US11167271B2 (en) | 2018-03-13 | 2021-11-09 | Lg Chem, Ltd. | Method for producing ferrite-based coated catalyst and method for producing butadiene by using same |
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