WO2017111392A1 - 글리세린 탈수 반응용 촉매, 이의 제조 방법 및 상기 촉매를 이용한 아크롤레인의 제조 방법 - Google Patents
글리세린 탈수 반응용 촉매, 이의 제조 방법 및 상기 촉매를 이용한 아크롤레인의 제조 방법 Download PDFInfo
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- WO2017111392A1 WO2017111392A1 PCT/KR2016/014741 KR2016014741W WO2017111392A1 WO 2017111392 A1 WO2017111392 A1 WO 2017111392A1 KR 2016014741 W KR2016014741 W KR 2016014741W WO 2017111392 A1 WO2017111392 A1 WO 2017111392A1
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- glycerin dehydration
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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
- 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
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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
- B01J23/16—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
- B01J23/22—Vanadium
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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
- B01J23/16—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
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
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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
- B01J23/74—Iron group metals
- B01J23/745—Iron
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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
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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
- B01J37/08—Heat treatment
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/20—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
- C07C47/21—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
- C07C47/22—Acryaldehyde; Methacryaldehyde
Definitions
- the present invention relates to a catalyst for glycerin dehydration, a method for preparing the same, and a method for preparing acrolein using the catalyst.
- Acrolein is a simple unsaturated aldehyde compound, has high reaction properties including incomplete reaction groups and is used as a major intermediate for the synthesis of various compounds.
- acrolein has been widely used as an intermediate for the synthesis of acrylic acid, acrylic esters, superabsorbent resins, animal feed complements, or food supplements.
- Such acrolein has been prepared by using propylene synthesized mainly in petroleum process as a starting material through atmospheric oxygen and selective gas phase oxidation reaction.
- environmental problems such as the reduction of fossil fuels and the greenhouse effect are gradually raised, a lot of research has been conducted on the method of synthesizing acrolein using renewable raw materials that are not based on fossil fuels.
- glycerin which can be obtained as a by-product of the process of synthesizing biodiesel as a natural product, has received much attention as a raw material for the production of acrolein.
- the market size of glycerin is increasing according to the production of biodiesel, and the method of applying it industrially due to the price drop of glycerin is being studied.
- a method is known in which a glycerin is dehydrated in the presence of a catalyst to obtain a mixture of acrolein and acrylic acid. The dehydration reaction of the glycerin proceeds to gaseous oxidation reaction in the presence of the catalyst, so the use of a catalyst is essential.
- the present invention is a catalyst for glycerin dehydration reaction reaction that has an increased lifespan by inhibiting the deposition of coke carbon in the dehydration reaction of glycerin or removing the generated coke carbon, and exhibits high selectivity and efficiency for acrolein and acrylic acid. It provides a manufacturing method.
- the present invention also provides a method for producing acrolein using the catalyst. [Measures of problem]
- a glycerin dehydration semi-aqueous catalyst represented by the following formula (1).
- M 1 and M 2 may be the same as or different from each other, respectively, V, Fe, Nb, Zn, or a combination thereof, and a, b, c, d, and e represent the composition ratio of each atom, and a is 0.1 To 6, b / a is 0 to 1, c / a is 0 to 1, d / a is 0 to 1, e / a is 0 to 10, wherein at least one of b and c is 0 X and y are values 0 to 10 that are determined depending on the binding state of the crystallized water.
- a may be 0.5 to 1
- b may be 0.01 to 0.3
- c may be 0.01 to 0.3
- d may be 0.01 to 0.3
- e may be 1 to 5.
- Zro.8Zno.o2Vo.2Wo.iP 2 H x O y , Zro.gsZno ⁇ Vo.osW ⁇ HxOy, x may be 2 to 6, and y may be 1 to 3.
- the drying and baking process after mixing the aqueous solution of at least one precursor, zirconium precursor, phosphorus precursor, and tungsten precursor selected from the group consisting of precursors of V, Fe, Nb, and Zn Provided is a method for preparing a catalyst for glycerin dehydration comprising the step of producing a catalyst represented by Formula 1 through.
- the drying process may be carried out at a temperature of 25 to 200 ° C, it may be carried out for 3 to 48 hours.
- the firing process may be carried out at a temperature of 250 to 750 ° C, it may be carried out for 3 to 48 hours.
- the precursor aqueous solution mixture may be stirred for 3 to 48 hours, and the precursor compound of the catalyst represented by Formula 1 is precipitated from the mixed aqueous solution, the precipitated catalyst precursor compound is filtered, washed with alcohol and dried and dried.
- the firing process can be performed.
- the catalyst according to one embodiment of the present invention is used in the glycerin dehydration reaction to exhibit high catalytic activity, high yield, and high selectivity for acrolein and acrylic acid, and is easily burned to the surface of the catalyst by burning off the coke carbon produced. It does not deposit and has a long life compared to the existing catalyst.
- 1 is a schematic diagram of an experimental reaction apparatus according to an embodiment of the present invention.
- 2 is a graph showing the performance of the reaction catalyst over time using a molding catalyst (5 mm in diameter, 5-15 mm in length) and an aqueous solution having a glycerin concentration of 50 wt% according to Example 16 of the present invention. .
- FIG 3 is a graph showing the performance of the reaction catalyst with time using a molding catalyst (5 mm in diameter, 5-15 mm in length) and 75 wt% aqueous solution of glycerin in accordance with Example 17 of the present invention.
- a catalyst for glycerin dehydration there is provided a catalyst for glycerin dehydration.
- M 1 and M 2 may be the same or different from each other, and each of V, Fe, Nb, Zn, or a combination thereof, and a, b, c, d, and e represent the composition ratio of each atom.
- A is 0.1 to 6
- b / a is 0 to 1
- c / a is 0 to 1
- d / a is 0 to 1
- e / a is 0 to 10
- At least one of b and c is not 0, and
- X and y are from 0 to 10 in a value determined by the binding state of the crystallized water.
- existing catalysts for the production of acrolein and acrylic acid from glycerin form by-products such as hydroxypropanone, propanealdehyde, acetaldehyde, acetone, polycondensation products of glycerin, cyclic glycerin ethers.
- Phenol and polyaromatic compounds are produced to form coke carbon on the catalyst causing inactivation. Deactivation of the catalyst makes it difficult to commercialize the Glycerin dehydration continuous operation is impossible.
- one of the biggest causes of such deterioration of catalytic activity is Loss of catalytically active site due to deposition of coke carbon produced.
- factors affecting the formation of coke carbon in glycerin dehydration reaction are reaction conditions such as reaction temperature, space velocity, partial pressure of oxygen and water vapor in reaction water, mass transfer in catalyst by catalyst pore structure, and amount of acid point on catalyst surface. The scattered places are counting.
- the acid point of the catalyst is generally an active point that promotes dehydration reaction, but in the case where an excessive strong acid point is present on the surface of the catalyst, condensation between molecules caused by the side reaction causes excessive generation of coke carbon to cause deactivation of the catalyst. Results in.
- Acrelane can be obtained by dehydrating glycerin under an acid catalyst. At this time, it is known that the production efficiency of acrolein is good when a catalyst having a Bronsted acid point rather than a Lewis acid point is used as the acid catalyst. However, the acid catalyst having many Bronsted acid points has a problem in that carbon is deposited on the acid catalyst during dehydration reaction and is easily deactivated.
- the catalyst represented by Chemical Formula 1 which is designed to solve this problem, is a catalyst having a Bronsted acid point, but is not easily deactivated during glycerin dehydration reaction.
- the catalyst of Formula 1 may have better yield of acrolein and a catalytic activity than zirconium phosphate, which has a Bronsted acid point and is known to have excellent catalytic activity.
- the catalyst of Formula 1 is a 0.5 to 1, b is 0.01 to 0.3, c is 0.01 to 0.3, d is 0.01 To 0.3, and e may be 1 to 5. More specifically, the catalyst represented by Formula 1 is
- iP2H x 0 y, or Zro. 8 Zno.o2Vo.2Wo. iP2HxO y , Zro.gsZno Vo.osW P ⁇ Oy, x may be 2 to 6, and y may be 1 to 3.
- the mixed oxide may further include a metal represented by M 1 and M 2 in addition to the zirconium, tungsten, and phosphorus, wherein M 1 and M 2 together with the role of suppressing the formation of coke carbon and by-products, coke produced Through the role of converting carbon into oxygen and steam and converting it into C0 X material, it is possible to suppress the deposition of coke carbon composed of phenol or polyaromatic compounds that cause catalyst deactivation. Can prolong the activity of.
- the catalyst for glycerin dehydration semi-flight of the present invention may further include a carrier on which the mixed oxide is fixed.
- the carrier can be used without any significant limitation as long as it is known that it can be used in conventional catalysts.
- Specific examples of such a carrier include silica, alumina, silica-alumina, zirconia, magnesia, magnesium aluminate, calcium aluminate, silicon carbide, zirconium phosphate, zeolite or a combination thereof.
- a carrier having a pore size of 20 nm or more can be used.
- the carrier serves to fix the mixed oxide of the embodiment, and the composite metal oxide may be fixed in a form of sharing oxygen to the carrier having a large surface area.
- the carrier may have a specific surface area of 10 to 500 m 2 / g, and preferably 50 to 200 m 2 / g.
- the catalyst for glycerin dehydration reaction prepared by supporting the composite metal oxide on a carrier having a large specific surface area in the above range has a suitable pore size, so as to deposit coke. The phenomenon can be reduced and can also provide more catalytic activity.
- the catalyst for glycerin dehydration may include 1 to 50 parts by weight of the composite metal oxide represented by Formula 1 based on 100 parts by weight of the carrier.
- the glycerin dehydration reaction catalyst of the present invention may actually have a molded granulated form for use in a pilot process or a commercial process.
- a conventional powdered catalyst normal operation may not be performed due to the internal pressure difference generated.
- such a molding catalyst must maintain its physical strength for a long time by increasing its physical strength so as not to be broken or damaged even when stacking a large amount.
- an inorganic material such as silica, alumina, titania, zirconia, or the like is added to at least one filler, and can be prepared through a calcination process through heat treatment at a high temperature.
- the molded granulated catalyst has a fracture strength of 25 N or more, or 25 N to 100 N, measured at the time when cracks occur for specimens of 0.5 mm in length and 0.5 mm in diameter using a compressive strength machine such as BOSS 5500.
- a compressive strength machine such as BOSS 5500.
- a method for producing a catalyst represented by the formula (1) as described above includes the step of producing a catalyst represented by the following formula 1 through a calcination process.
- the catalyst of the formula (1) is not particularly limited to a method of mixing the aqueous solution of the precursor of the M 1 and M 2 atoms, zirconium precursor, phosphorus precursor, and tungsten precursor.
- the precursors may be mixed one by one in a sequential order, or may be mixed at one time.
- a zirconium precursor when added to the reaction vessel, a precursor of M 1 and M 2 atoms, and a tungsten precursor are added thereto, and then a phosphorus precursor compound is added, a zirconium precursor and a precursor of M 1 and M 2 atoms, tungsten Precursor completely dissolved Since the phosphorus precursor compound is added, the precursors may be well dissolved to more easily form crystals having a stable structure, thereby improving catalyst yield.
- the solvent is added and the precursors are added while stirring the solvent, or some precursor is added to the black reaction vessel and the other precursor while stirring the precursor Or all the precursors are added to the reaction vessel and the mixture of the precursors is stirred to increase the amount of catalyst produced.
- a solvent such as water may be added, and the precursor may be sequentially or simultaneously added while stirring the solvent such as water.
- some of the precursors may be added to the reaction vessel first, and the remaining precursors may be added sequentially or simultaneously with stirring.
- precursors may be sequentially or simultaneously introduced into the reactor to form a mixture and to stir the mixture.
- the mixture of precursors can be continuously stirred even after all the precursors have been added to the reactor.
- the agitation of the mixture may proceed under temperature conditions of about 25 to 200 ° C. to facilitate the bonding between the metals.
- the agitation can be performed for a time period in which all the precursors added are well mixed so that a large amount of precipitation occurs.
- the stirring may be performed for about 3 to 48 hours.
- Precipitating the precursor compound of the catalyst represented by the formula (1) from the aqueous solution in which the precursor compound of each of these components is mixed may be further included.
- Precursors of each component used in the manufacturing method may utilize all the various precursors known in the art.
- zirconium precursors include zirconyl chloride (Zi rconyl chloride), zirconyl bromide, zirconyl iodide and zirconyl nitrate (Zi rconyl ni trate) Can be used.
- M 1 and M 2 as a precursor of the atoms M 1 and the oxides, M 1 and M 2 of a metal M 2 metal Hydroxides, such as M 1 and M 2 a metal nitrate (ni trate), M 1 and M 2 a metal oxalate (oxal ate), M 1 and M 2 a metal phosphate or M 1 and M halide of the second metal of the Can be used.
- M 1 and M 2 a metal nitrate (ni trate), M 1 and M 2 a metal oxalate (oxal ate), M 1 and M 2 a metal phosphate or M 1 and M halide of the second metal of the Can be used.
- NH 4 V0 3 vanadium chloride (vanadium chloride), vanadium sulfate (vanadium sul fate) may be used as the vanadium precursor, and Fe (N0 3 ) 3 may be used as the iron precursor, or chloride of iron (chlorine).
- niobium precursors may include C 4 H 4 N b3 ⁇ 4, and zinc precursors such as Zn (N0 3 ) 2 .
- one kind or two or more kinds of precursors may be used as precursors of M 1 and M 2 atoms, respectively, and non-limiting examples may include zinc precursors and iron precursors, zinc precursors, iron precursors, and vanadium precursors.
- phosphorus precursor compound phosphoric acid and phosphate in which one or more protons of phosphoric acid are substituted with a group 1, 2 or 13 cation, or an ammonium cation may be used.
- tungsten precursors examples include ammonium meta-tungstate, ammonium para-tungstate, tungstic acid, tungsten blue oxide, and tungsten trioxide.
- the precursors may be anhydrous or hydrate.
- the precursors may be used in an appropriate amount depending on the ratio of atoms and atom groups of the formula (1).
- the precursor compound for preparing a catalyst according to the present invention includes zirconium oxychloride (ZrOCl ⁇ 83 ⁇ 40), zirconium oxynitrate (ZrO (N0 3 ) 2 ⁇ 3 ⁇ 40), phosphoric acid (H 3 P0 4 ), ammonium phosphate (( NH 4 ) 2 HP0 4 ), iron nitrate (Fe (N0 3 ) 3 * 9H 2 0), zinc nitrate (Zn (N0 3 ) 3 ⁇ 63 ⁇ 40), ammonium meta-vanadate (a ⁇ onium metavanadate, NH4VO3 ), Ammonium meta-tungstate may be used.
- ZrOCl ⁇ 83 ⁇ 40 zirconium oxychloride
- phosphoric acid H 3 P0 4
- ammonium phosphate (( NH 4 ) 2 HP0 4 )
- iron nitrate Fe (N
- a suitable solvent may be used for uniform mixing of the precursors.
- the solvent is not particularly limited, and water and the like are non-limiting examples.
- the precursor compound of the catalyst represented by Formula 1 may be precipitated from the mixed aqueous solution of the precursors, and the catalyst precursor thus precipitated. Filtering the compound and washing with water or alcohol, or a combination thereof. In particular, when the precipitate of the metal compound is washed with alcohol, a wider surface area catalyst can be prepared. Such a large surface area catalyst may show better catalytic activity and acrolein selectivity in glycerin dehydration.
- Examples of the alcohol that may be used in the washing may include methanol, ethanol, propanol, butanol, pentane, alkyl alcohols having 1 to 10 carbon atoms such as nucleic acids, and the like.
- the drying process may be carried out at a temperature of 25 to 200 ° C, may be performed for 3 to 48 hours.
- the firing process may be carried out at a temperature of 250 to 750 ° C, it may be carried out for 3 to 48 hours.
- the method may further include forming and granulating the fired product after the dry firing process or before the drying process.
- the molding assembly process may be performed by mixing with a coagulant including an sol or slurry and an alcohol in a solution state containing an inorganic metal component to improve the mechanical strength of a mixed oxide having low mechanical strength.
- a coagulant including an sol or slurry and an alcohol in a solution state containing an inorganic metal component to improve the mechanical strength of a mixed oxide having low mechanical strength.
- an inorganic metal component 1 or more types of layering agents, such as a silica, an alumina, titania, a zirconia, are mentioned as an example.
- the catalyst may be molded to have a superior mechanical strength.
- the catalyst formed in this manner may be a composite metal oxide.
- the strength of the catalyst is excellent as compared with the case where it is used as it is or is supported on a carrier. Accordingly, the shaped catalyst can maintain long-term reaction activity without generating an internal pressure even when applied to an actual pilot process or a commercial process.
- at least one inorganic metal sol consisting of silica sol, alumina sol, titania sol, zirconia sol and the like, and at least one alcohol consisting of glycerin, isopropyl alcohol, diacetone alcohol, methanol ethane and propanol It may include.
- the molded granulated catalyst may perform a drying and firing process.
- the drying process may be performed for 3 to 48 hours at a temperature of 25 to 200 ° C.
- the firing process may be performed for 3 to 48 hours at a temperature of 250 to 750 ° C.
- the catalyst manufacturing method may further include a step generally employed in the art to which the present invention pertains, in addition to the above-described steps.
- a method for producing acrolein including the step of dehydrating glycerine under the glycerine dehydration reaction reaction catalyst.
- the method for producing acrolein may be, for example, dehydration of glycerin under a continuous flow gas phase reaction system in which the catalyst is present to provide acrolein.
- Glycerin or an aqueous glycerin solution may be used as the semi-aquatic product of the preparation method.
- a carrier gas of the reaction product an inert gas or a mixed gas of inert gas and air or oxygen may be used.
- the dehydration reaction can be carried out under a glycerin concentration of 25 to 75% by weight.
- the content of the gaseous reaction product may include glycerin in an amount of 1 to 10 mol%, and may include oxygen in 1 to 20 mol%.
- the glycerin reaction process may be performed at a gas space velocity (GHSV) of 100 to 5000 h _1 , preferably 250 to 3000 h "1 , more preferably 500 to 1000 h- 1 .
- GHSV gas space velocity
- GHSV gas space velocity
- high activity at low reaction temperature means that the activity of the catalyst is good.
- the amount of catalyst used to obtain the same amount of product is reduced, so that the reactor can be made small, and the low temperature can be produced at low cost because less utility is used. It can be said to be excellent.
- the step of reacting the glycerin may be carried out at a temperature of 250 to 350 ° C, more preferably 280 to 320 ° C.
- the step of reacting the glycerin is an endothermic reaction, acrolein with high conversion and selectivity
- the reaction temperature is too low, the conversion of glycerin may be reduced, and if the reaction temperature is too high, the selectivity of acrolein may decrease due to excessive side reactions.
- the dehydration reaction when the dehydration reaction is carried out using the catalyst of the present invention, high catalyst activity, high yield, and high selectivity for acrolein and acrylic acid are shown, and the produced coke carbon is burned and removed to deposit on the catalyst surface. It does not have the advantage that the continuous process is possible because of the excellent properties.
- the preferred process condition is a process that can be operated continuously. If the reaction temperature is low and the reaction size is small, it may be a better process. This is because a decoking process is required to periodically remove it. Therefore, using the catalyst of the present invention, glycerin dehydration reaction can be carried out in a continuous process while maintaining high catalytic activity under operating conditions capable of effectively removing coke carbon.
- a partial oxidation reaction of acrolein from the product obtained from the dehydration reaction may be performed, and the final conversion of the resulting arcane to acrylic acid through the dehydration reaction of glycerin may be further performed.
- the method of manufacturing the aclein may further include a step commonly employed in the art to which the present invention pertains.
- the method for producing acrolein according to the present invention after the reaction started
- At least 300% of the glycerin conversion rate measured after 300 hours or more may be maintained, and the selectivity of at least one product selected from the group consisting of acrolein and acrylic acid may be at least 35%.
- the C0 X value measured by GC analysis in liquid and gaseous products is about 40% or less or 1% to 40%, preferably 36% or less. More preferably, it may be 35% or less.
- the value of C0 X is a value indicating the degree to which the coke carbon or the reaction product is oxidized, and if it is too large, it can be seen that a adverse effect of oxidizing the reaction product other than the coke carbon occurs. In particular, it can be seen that the best effect appears if the reaction activity is maintained while maintaining a small value of C0 X.
- preferred embodiments of the present invention will be described in detail. However, these examples are only for illustrating the present invention, and the scope of the present invention is not to be construed as being limited by these examples.
- An aqueous solution was prepared by adding 12.208 g of ZrOCl 2 as a zirconium precursor to 150 mL of distilled water. Zn (N0 3 ) 2 ⁇ 63 ⁇ 40 was added to the aqueous solution as a zinc precursor. 225 g, 3 ⁇ 4 6 0 40 3 ⁇ 4 was added as 0.933 g as a tungsten precursor and stirred for about 30 minutes to 1 hour.
- an aqueous solution was prepared by adding 8.714 g of NH 4 3 ⁇ 4P0 4 as a phosphorus precursor compound to 150 mL of distilled water, and the aqueous solution prepared by adding an aqueous solution of phosphorus precursor to the aqueous solution of zirconium prepared above was stirred overnight at a temperature of about 95 ° C. It was.
- An aqueous solution was prepared by adding 10.986 g of ZrOC as a zirconium precursor to 150 mL of distilled water.
- 1.54 g of Fe (N0 3 ) 3 ⁇ 93 ⁇ 40 as an iron precursor and 0.933 g of 3 ⁇ 4 6 0 40 1 ⁇ 2 as a tungsten precursor were added to the aqueous solution and stirred for about 30 minutes to 1 hour.
- the aqueous solution was added to Zr (Xl 2 9.766 g of zirconium precursor in distilled water to 150 mL was prepared as a zinc precursor with the aqueous solution of 0.225 g of Zn (N0 3) 2 ⁇ 63 ⁇ 40 , an iron precursor Fe (N0 3) 3. 93 ⁇ 40 Was added 1.54 g, NH 4 V0 3 as vanadium precursor 0.448 g, 3 ⁇ 4 6 12 as 0.933 g as tungsten precursor and stirred for about 30 minutes to 1 hour, and NH 4 H 2 as a phosphorus precursor compound in 150 mL of distilled water.
- An aqueous solution was prepared by adding 8.714 g of P0 4, and the aqueous solution prepared by adding an aqueous phosphorus precursor solution to the aqueous zirconium solution prepared above was stirred at a temperature of about 95 ° C. overnight.
- An aqueous solution was prepared by adding 9.766 g of ZrOCl 2 as a zirconium precursor to 150 mL of distilled water. 0.225 g of Zn (N0 3 ) 2 ⁇ 63 ⁇ 40 as a zinc precursor, 3.08 g of Fe (N0 3 ) 3 ⁇ 93 ⁇ 40 as an iron precursor, and 0.933 g of 3 ⁇ 4 6 ⁇ 0 12 as a tungsten precursor were added to the aqueous solution for about 30 minutes to Stir for 1 hour.
- an aqueous solution was prepared by adding 8.714 g of ⁇ 4 ⁇ 2 ⁇ 0 4 as a phosphorus precursor compound to 150 mL of distilled water, and the aqueous solution prepared by adding the phosphorus precursor solution to the aqueous solution of zirconium prepared above at a temperature of about 95 ° C. Stir overnight. Subsequent steps were obtained in the same manner as in Preparation Example 1 to obtain a catalyst for glycerin dehydration reaction reaction Zro.sZno ⁇ Feo.zWo. ⁇ H x Oy.
- Preparation Example 9 Preparation of Glycerin Dehydration Semi-Aqueous Catalyst
- An aqueous solution was prepared by adding 12.208 g of ZrOCl 2 as a zirconium precursor to 150 riiL of distilled water. 0.225 g of Zn (N0 3 ) 2 ⁇ 63 ⁇ 40 as a zinc precursor and 0.933 g of 3 ⁇ 4 6 0 40 ⁇ 12 as a tungsten precursor were stirred in the aqueous solution for about 30 minutes to 1 hour. And stirred overnight The an NH 4 3 ⁇ 4P0 4 was added to 8.714 g The precursor compound in distilled water to 150 mL to prepare an aqueous solution, prepared by adding the precursor solution to the aqueous solution of zirconium prepared above aqueous solution at a temperature of about 95 ° C It was.
- the precipitate precipitated from the aqueous solution was washed with ethane and dried at 100 ° C. for 12 hours, and then calcined at 700 ° C. for 6 hours.
- a molding granulation catalyst Zro.gZno.t K Ho. ⁇ HA for glycerin dehydration reaction was obtained in the same manner as in Production Example 10, except that 0.448 g was used.
- Preparation Example 13 Preparation of Glycerin Dehydration Semi-Umbilized Granulation Catalyst
- An aqueous solution was prepared by adding 12.208 g of ZrOCl 2 as a zirconium precursor to 150 mL of distilled water. Then, an aqueous solution was prepared by adding 8.714 g of H 4 H 2 P0 4 as a phosphorus precursor compound to 150 mL of distilled water, and an aqueous solution prepared by adding an aqueous phosphorus precursor solution to the aqueous zirconium solution prepared above at a temperature of about 95 ° C. Stir overnight.
- Glycerin dehydration reaction was performed using a catalyst prepared according to Preparation Examples 1 to 13 and Comparative Preparation Examples 1 and 2 using a reaction apparatus as shown in FIG. 1.
- aqueous solution of glycerin was vaporized in a vapor i zer, heated in a pre-heater zone, and then deposited into a ' stainless-steel reactor ' in which the experimental catalyst, which had reached the reaction temperature, was layered. Glycerin dehydration was performed by injection. The resulting product was expanded and the liquid and gaseous products were analyzed by gas chromatography (GC: Gas Chromatography), respectively.
- GC Gas Chromatography
- the liquid product is the value of the liquid products by analyzing the gas phase liquid product with the GC-FID detector
- the gaseous product is the value representing the value of the gas products by analyzing the gas product with the GC-TCD detector.
- the reason for the gas phase analysis together with the liquid phase is that the C components reacted with air (Ai r) This is to confirm the value converted to CO and co 2 .
- the co x converted to gas should reflect the co x value, depending on time, between about 1% and 34%.
- Example 11 analyzed only the liquid product in Example 13
- Example 12 is to analyze only the liquid product in Example 14
- the analysis results for the product after glycerin dehydration reaction of Examples 1 to 12 and Comparative Example 1 are shown in Table 3 below.
- Example 11 analyzed only liquid product in Example 13
- Example 12 analyzed only the liquid product in Example 14
- Example 1 to Glycerin dehydration semiungol In the case of 17, it is possible to continuously operate a glycerin dehydration reaction process using a fixed bed reaction vessel that has been used commercially, and it can be seen that acrolein and / or acrylic acid can be obtained in high yield from glycerin.
- Figures 2 and 3 according to Examples 16 and 17, respectively, the glycerin conversion rate, acrolein + acrylic acid selection when the glycerin was continuously reacted for a long time using the molded granulation catalyst of Preparation Examples 12 and 13 of the present invention
- a graph showing the yield of C0 X is shown.
- the conversion was greatly reduced in 5 hours due to the formation of coke carbon on the catalyst.
- Example 9-10 which was carried out with the molded granulation catalyst, and a fairly high level of acllein selectivity.
- Table 3 the gas phase products from the liquid phase results
- Table 5 the liquid phase and the gas phase results from the results of Examples 11, 12, 13, 14 and 15, 16
- a significant amount of C0 X occurs over time. It can be seen that coke carbon removal occurs and continuous operation over 100 hours is possible. Accordingly, the present invention can be said to have an excellent feature capable of long time continuous operation at high space velocity conditions.
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Abstract
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/749,472 US10569259B2 (en) | 2015-12-22 | 2016-12-15 | Catalyst for dehydration of glycerin, preparation method thereof, and production method of acrolein using the catalyst |
| EP16879259.6A EP3315194B1 (en) | 2015-12-22 | 2016-12-15 | Catalyst for glycerin dehydration reaction, preparation method therefor, and method for preparing acrolein by using catalyst |
| CN201680051433.7A CN108025284B (zh) | 2015-12-22 | 2016-12-15 | 用于甘油脱水的催化剂、其制备方法和使用所述催化剂的丙烯醛的生产方法 |
| JP2018505020A JP6533621B2 (ja) | 2015-12-22 | 2016-12-15 | グリセリン脱水反応用触媒、その製造方法および前記触媒を利用したアクロレインの製造方法 |
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| KR20150184168 | 2015-12-22 | ||
| KR10-2015-0184168 | 2015-12-22 | ||
| KR1020160129986A KR102052708B1 (ko) | 2015-12-22 | 2016-10-07 | 글리세린 탈수 반응용 촉매, 이의 제조 방법 및 상기 촉매를 이용한 아크롤레인의 제조 방법 |
| KR10-2016-0129986 | 2016-10-07 |
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| WO2017111392A1 true WO2017111392A1 (ko) | 2017-06-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110213174A1 (en) * | 2008-10-24 | 2011-09-01 | Arkema France | Process for manufactguring acrolein from glycerol |
| WO2012005348A1 (ja) * | 2010-07-09 | 2012-01-12 | 日本化薬株式会社 | 新規なグリセリン脱水用触媒とその製造方法 |
| KR20120093853A (ko) * | 2009-09-18 | 2012-08-23 | 아르끄마 프랑스 | 글리세린의 탈수 반응에 의한 아크롤레인 및/또는 아크릴산의 제조용 촉매 및 방법 |
| KR20150009452A (ko) * | 2013-07-16 | 2015-01-26 | 주식회사 엘지화학 | 글리세린 탈수반응용 촉매, 이의 제조 방법 및 아크롤레인의 제조 방법 |
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2016
- 2016-12-15 WO PCT/KR2016/014741 patent/WO2017111392A1/ko not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110213174A1 (en) * | 2008-10-24 | 2011-09-01 | Arkema France | Process for manufactguring acrolein from glycerol |
| KR20120093853A (ko) * | 2009-09-18 | 2012-08-23 | 아르끄마 프랑스 | 글리세린의 탈수 반응에 의한 아크롤레인 및/또는 아크릴산의 제조용 촉매 및 방법 |
| WO2012005348A1 (ja) * | 2010-07-09 | 2012-01-12 | 日本化薬株式会社 | 新規なグリセリン脱水用触媒とその製造方法 |
| KR20150009452A (ko) * | 2013-07-16 | 2015-01-26 | 주식회사 엘지화학 | 글리세린 탈수반응용 촉매, 이의 제조 방법 및 아크롤레인의 제조 방법 |
Non-Patent Citations (1)
| Title |
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| CHAI, S. -H. ET AL.: "Sustainable Production of Acrolein: Preparation and Characterization of Zirconia-supported 12-tungstophosphoric Acid Catalyst for Gas-phase Dehydration of Glycerol", APPLIED CATALYSIS A: GENERAL, vol. 353, no. 2, 2009, pages 213 - 222, XP025870204 * |
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