WO2006085558A1 - 芳香族炭化水素を製造する方法 - Google Patents
芳香族炭化水素を製造する方法 Download PDFInfo
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- WO2006085558A1 WO2006085558A1 PCT/JP2006/302178 JP2006302178W WO2006085558A1 WO 2006085558 A1 WO2006085558 A1 WO 2006085558A1 JP 2006302178 W JP2006302178 W JP 2006302178W WO 2006085558 A1 WO2006085558 A1 WO 2006085558A1
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/076—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/48—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing arsenic, antimony, bismuth, vanadium, niobium tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7815—Zeolite Beta
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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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7876—MWW-type, e.g. MCM-22, ERB-1, ITQ-1, PSH-3 or SSZ-25
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen
- C07C2/82—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen oxidative coupling
- C07C2/84—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen oxidative coupling catalytic
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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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/12—After treatment, characterised by the effect to be obtained to alter the outside of the crystallites, e.g. selectivation
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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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
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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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/32—Reaction with silicon compounds, e.g. TEOS, siliconfluoride
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
- C07C2529/48—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
- C07C2529/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
Definitions
- the present invention relates to a method for producing an aromatic hydrocarbon such as benzene from a lower hydrocarbon such as methane, and relates to a liquid petroleum gas, a liquefied natural gas, a coal dry distillation gas, a petroleum refined gas, a naphtha, and an organic fermentation gas.
- a liquid petroleum gas a liquefied natural gas
- a coal dry distillation gas a coal dry distillation gas
- a petroleum refined gas a naphtha
- an organic fermentation gas Manufacture aromatic hydrocarbons using as raw materials hydrocarbons with 1 to 8 carbon atoms obtained from organic carbonization gas, coal reformed gas, methane hydrate recovery gas, etc., or their decomposition products It is about how to do.
- the present invention also relates to an aromatization catalyst using a lower hydrocarbon as a raw material.
- Aromatic hydrocarbons such as benzene, toluene, and xylene were mainly produced by petroleum-based naphtha, but synthetic zeolite can also be used as a method for producing aromatic hydrocarbons such as benzene with lower hydrocarbons, especially methane.
- a method of directly contacting and reacting molybdenite supported on ZSM-5 as a catalyst is known (for example, Non-Patent Document 1).
- Non-Patent Document 1 A method of directly contacting and reacting molybdenite supported on ZSM-5 as a catalyst.
- these catalysts were used, there were technical problems such as a large amount of carbon deposition, a low conversion rate of methane and a decrease in catalytic activity in a short time.
- ZSM 5 can be directly contacted in the presence of a catalyst supporting molybdenum, zinc, or the like, or a raw material gas with a small amount of carbon dioxide added can be used.
- a catalyst supporting molybdenum, zinc, or the like or a raw material gas with a small amount of carbon dioxide added can be used.
- Non-Patent Document 1 JOURNAL OF CATALYSIS, 165 (2), 150-161 (1997) Patent Document 1: Japanese Patent Laid-Open No. 10-272366
- Patent Document 2 Japanese Patent Laid-Open No. 11-60514
- the present invention can simultaneously produce benzene or an aromatic compound mainly composed of benzene and hydrogen gas with a high conversion and a high selectivity using a lower hydrocarbon such as methane as a raw material.
- PROBLEM TO BE SOLVED To provide a method for producing hydrogen by aromatizing a lower hydrocarbon exhibiting stable catalytic ability over a long period of time, a benzene or an aromatic compound containing benzene as a main component from the lower hydrocarbon using the catalyst And
- An object of the present invention is to provide a molybdenum silicate support modified with a silicon compound, a sodium compound, or a calcium compound in a process for producing an aromatic hydrocarbon using a lower hydrocarbon as a raw material.
- a catalytic reaction is carried out by heating in the presence of a catalyst carrying a compound or a rhenium compound, wherein the silicon compound comprises an amino group, an alkylamino group, a pyridyl group, a basic group selected, and a trialkoxy.
- the silanic compound, the sodium compound, or the fragrance is modified as each oxide by heat treatment in an oxygen-containing atmosphere after impregnating the calcium compound into the metallosilicate support. This can be solved by a method for producing a group hydrocarbon.
- the catalyst is a method for producing the above aromatic hydrocarbon containing platinum or rhodium.
- a catalyst for the production of aromatic hydrocarbons using lower hydrocarbons as raw materials A catalyst in which a molybdenum compound or a rhenium compound is supported on a metallosilicate carrier modified with a sodium compound or a calcium compound, the key compound having an amino group, an alkylamino group, or a pyridyl group.
- the production catalyst production catalyst of the aromatic hydrocarbon are those which are modified by the respective oxides by heat treatment.
- the catalyst is a catalyst for producing the above-mentioned aromatic hydrocarbon which carries a platinum or rhodium compound.
- the method for producing an aromatic hydrocarbon of the present invention can produce an aromatic hydrocarbon with a high conversion and a high selectivity and a lower hydrocarbon power such as methane, and particularly, the selectivity of benzene is large.
- Aromatic hydrocarbons containing benzene as the main component can be produced stably for a long time.
- a metallosilicate carrier is modified with an aminosilicate or the like, compared to a conventional metallosilicate carrier having a metal component such as molybdenum supported thereon.
- the meta-mouth silicate used as the catalyst carrier used in the production of the aromatic hydrocarbon of the present invention is a porous body mainly composed of silica and alumina called zeolite, and the molecular sieve 5A. , Fauxite (NaY) and NaX, ZSM-5, ZSM-11, ZRP-1, MCM-22, ferriolite, ⁇ -zeolite, etc. Those of 4 to 0.7 nm are preferred.
- the metallosilicate carrier of the present invention is chemically modified with a key compound, a sodium compound, a calcium compound, or the like.
- Key compounds include organic groups that react with the metallosilicate surface, such as amino groups, alkylamino groups, pyridyl groups, and the like, and are more powerful than the pore sizes of trialkoxy and triphenyl meta-silicate silicates. Mention may be made of compounds containing groups.
- preferable methoxy compounds include methoxyethyl triethoxysilane, 3-acetopropyltriethoxysilane, 3-aminopropylethoxysilane, N- (2 aminoethyl) 3-aminopropyltrimethoxysilane, and aminophenol.
- an organic solvent solution containing the key compound for example, benzene, toluene, methylene chloride, black-form, hexane, tetrafuran
- a metallosilicate carrier with a solution containing ethanol, propyl alcohol, or jetyl ether as a solvent, or an inert gas such as nitrogen, helium, or argon, or a hydrogen compound in a carbon dioxide atmosphere
- an inert gas such as nitrogen, helium, or argon
- a hydrogen compound in a carbon dioxide atmosphere can be produced by adsorbing and supporting and heat-treating in an oxygen-containing atmosphere.
- ZSM-5 powder After impregnating ZSM-5 powder with a toluene solution of 3aminopropyltriethoxysilane and removing the solvent by distillation under reduced pressure, 250 to 800 ° C, preferably 350 to 600 ° in an air stream.
- Chemically modified ZSM-5 can be produced by heat treatment with C.
- the ratio of the metallosilicate support to the silicon compound is 100 parts by weight of the metal silicate on the basis of the silicon oxide (SiO 2).
- the amount is 0.01 to 50 parts by weight, more preferably 0.01 to 10 parts by weight, and still more preferably 0.1 to 5 parts by weight.
- a sodium compound or a calcium compound is supported as the chemically modified metallosilicate, a strong organic group such as 12 crown 1 4 (1, 4, 7, 10-tetraoxacyclododecane), 15 Crown 1 5 (1, 4, 7, 10, 13 Pentaxacyclododecane), 18 Crown 6 (1, 4, 7, 10, 13, 16 Hexacyclocyclodecane), (18 Crown 6) —2, 3, 11, 12—tetra-force norevonic acid, 2 aminomethylolene 15 crown 1, 5- (hydroxymethyl) 12 crown 1, 4- (hydroxymethyl) 15 crown 5, 2- (hydroxy Methyl) 18 Crown-6, 2- (hydroxymethyl) anthraquinone, hexafluoropentadione sodium, sodium 2,4 pentadione salt, lithium tetramethylpentanedione salt, trimethylsilanate sodium salt, N— (trimethoxysilylpropyl) diethylenetriamine, t-butoxy sodium, Na (Li, K) phthalocyan
- the method for modifying the metal silicate using these metal-containing organic compounds can be carried out in the same manner as in the case of modifying with a key compound.
- the catalyst of the present invention may be any of molybdenum or rhenium on the metallosilicate support modified with the above-described silicon compound, sodium compound, or calcium compound. It can be manufactured by supporting one kind.
- the support can be produced by supporting in a method such as impregnation with a precursor solution of these metal components and then heating in an oxygen-containing atmosphere.
- Molybdenum and rhenium precursors include ammonium paramolybdate, phosphorus molybdate, 12-key molybdic acid, oxides, halides such as chlorides, bromides, nitrates, sulfates, Examples thereof include metal complexes such as mineral acid salts such as phosphates, carboxylic acid salts such as carbonates, acetates and oxalates, and metal complex salts such as carbol complex and acetyl acetate.
- Molybdenum and rhenium compounds are supported by impregnating a chemically modified metallosilicate support with an aqueous solution containing these compounds or by supporting them by an ion conversion method.
- It can be produced by a method of heat treatment in air.
- a chemically modified metallosilicate carrier is impregnated with an aqueous solution of ammonium molybdate, dried, and then heated in an air stream at 250 to 800 ° C, preferably 350 to 600 ° C, to form molybdenum. It is possible to produce a chemically modified metallosilicate catalyst that supports.
- the mass ratio of molybdenum to the chemically modified metamouth silicate is 0. with respect to 100 parts by weight of the chemically modified metamouth silicate. 001 to 50 parts by weight is preferable, and 0.01 to 30 parts by weight is more preferable.
- the catalyst of the present invention may be one containing platinum or rhodium component in addition to molybdenum or rhenium component.
- a halo such as a salt or bromide thereof is used.
- a compound containing a carboxylate such as a genide, nitrate, sulfate, phosphate, carbonate, acetate, or oxalate can be used as a raw material.
- the mass ratio of platinum or rhodium component to the carrier is preferably 0.001 to 50 parts by weight, more preferably 0.01 to 40 parts by weight of platinum or rhodium with respect to 100 parts by weight of the carrier. is there
- an aqueous solution of these precursors is applied to the chemical modification meta-mouth silicate carrier in the same manner as the method of introducing molybdenum. It can be prepared by carrying out heat treatment in air after supporting by impregnation or ion conversion method.
- the catalyst is loaded with the metal component on the carrier.
- At least one of molybdenum and rhenium components is loaded, and then at least one of platinum and rhodium components is loaded.
- a method of supporting (2) a method of supporting at least one of platinum or rhodium components, and then supporting at least one of molybdenum or rhenium components, and (3) of molybdenum or rhenium components.
- a chemically modified metallosilicate support is impregnated with an aqueous solution of a predetermined amount of ammonium molybdate and then dried, and then 250 to 800 in an air stream.
- Heat treatment at 250 to 800 ° C., preferably 350 to 600 ° C., to support the molybdenum component and platinum component, or the molybdenum component and rhodium component, and then to the toluene of 3-aminopropyltriethoxysilane. It can be produced by impregnating and supporting an organic solvent solution such as the above, depressurizing and removing the solvent, and then heat-treating in an air stream at 250 to 800 ° C, preferably 350 to 600 ° C.
- molybdenum, rhenium, platinum, rhodium, etc. are considered to exist in the form of metals, metal oxides, etc.
- the expression such as a molybdenum component means one containing at least one of the two.
- the method for producing an aromatic hydrocarbon of the present invention uses a catalyst in which molybdenum, rhenium, platinum, and rhodium components are supported on a metallosilicate support that has been chemically modified as described above, and lower hydrocarbons as raw materials.
- the catalytic reaction is carried out at a temperature of 300 to 800 ° C, preferably at a temperature of 450 to 775 ° C, at a pressure of 0.01 to lMPa, preferably at a temperature of 0.1 to 0.7 MPa. Can be done.
- the reaction can be carried out in a batch-type or flow-type reaction mode, but is preferably carried out in a flow-type reaction mode such as a fixed bed, moving bed or fluidized bed.
- the weight hourly space velocity is 0.1 to 10, preferably 0.5 to 5.0. Unreacted raw material recovered from the reaction product can be recycled to the aromatization reaction.
- the raw material lower hydrocarbon used in the method for producing aromatic hydrocarbons includes saturated and unsaturated hydrocarbons having 1 to 8 carbon atoms in the molecule that are gases under the reaction conditions. Can be used. Specific examples include methane, ethane, ethylene, propane, propylene, n-butane, isobutane, n-butene and isobutene, pentane, pentene, hexane, hexene, heptane, heptene, octane, otaten, etc. It is not limited to a straight chain, and examples include branched and cyclic structures.
- Those resulting from single substances, mixtures, various chemical processes, etc. such as petroleum gas, coal dry distillation gas, refined petroleum gas, naphtha, organic fermentation gas, organic dry distillation gas, coal reformed gas, methane hydrate Examples include recovered gas.
- the method for producing an aromatic compound of the present invention is characterized in that hydrogen is produced together with an aromatic hydrocarbon mainly composed of benzene.
- HZSM-5 As a metallosilicate carrier, 37 mg, 92 mg, 184 mg, 368 mg of 3-aminopropyltriethoxysilane was added in ethanol solution to 10 g of HZSM-5 with a silica / alumina ratio of 32 and a specific surface area of 320 m 2 / g. After fully adsorbing and supporting, it is dried at 120 ° C for 16 hours and calcined in the air at 550 ° C for 4 hours, so that the amount of modification is 100 parts by weight with respect to 100 parts by weight of metallosilicate on the basis of acid An oxygen-modified HZSM-5 carrier having 0.1 parts by weight, 0.25 parts by weight, 0.5 parts by weight, and 1.0 parts by weight was obtained.
- HZSM-5 with different amounts of modification of the obtained silicon oxide was impregnated with an aqueous solution in which 174 g of ammonium molybdate was dissolved in 17 ml of ion-exchanged water and calcined at 550 ° C for 10 hours.
- Sample 1 with a modified amount of silicon oxide of 37 mg, sample 2 with 92 mg, sample 3 with 184 mg, and sample 4 with 368 mg were obtained.
- the catalyst was filled in a fixed bed, the temperature of the catalyst was raised to 550 ° C under an air stream, Then, a lower hydrocarbon raw material containing 7% by volume of hydrogen in 93% by volume of methane was supplied, and the temperature was raised to 650 ° C. and maintained for 1 hour. Thereafter, the temperature was raised to 750 ° C., and the mixed gas was supplied under the conditions of a pressure of 0.3 MPa and a weight time rate (WHSV) of 2700 mlZgZh.
- WHSV weight time rate
- Hydrogen and methane in the product were measured by gas chromatography using a thermal conductivity detector, and hydrocarbons were measured by gas chromatography using a hydrogen flame detector.
- the performance index here is the number of nmols of each product produced per lg of catalyst, that is, hydrogen and aromatic hydrocarbons.
- Table 1 shows the measurement results obtained.
- Example 2 The other points were the same as in Example 1, except that 3-aminopropyltriethoxysilane used in the modification of the metallosilicate support in Example 1 was replaced with a different composition and amount of a silicon-containing substance.
- Using 175 mg of 3-aminopropyltrimethoxysilane 100 parts by weight of the metal silicate carrier was modified with 1.1 parts by weight of sample 5 and 180 mg of propyltriethoxysilane.
- 100 parts by weight of the metallosilicate support 1.1 parts by weight of the modified sample of the silicon oxide 1.1 parts, using 375 mg of triphenylaminosilane to 100 parts by weight of the metallosilicate support
- Each catalyst of Sample 7 was prepared with a modification amount of 1. 1 parts by weight of silicate.
- Table 1 shows the measurement results obtained.
- Example 1 Instead of 3-aminopropyltriethoxysilane used for modification of the metallosilicate carrier in Example 1, 280 mg of 18-crown monosodium salt in ethanol, or 275 mg Except for the modification using hexafluoropentanedione sodium salt, the other points were the same as in Example 1, except that the metallosilicate was 100 wt.% Based on sodium oxide (Na 2 O 3).
- Catalysts of Sample 8 and Sample 9 were prepared with a modification amount of 1.1 parts by weight, respectively.
- Table 1 shows the measurement results obtained.
- Example 1 is the same as Example 1 except that 230 mg of calcium acetylacetonate was used instead of 3-aminopropyltriethoxysilane used for modification of the metallosilicate support in Example 1.
- a catalyst of Sample 10 having a modification amount of 1.1 parts by weight with respect to 100 parts by weight of metallosilicate on the basis of calcium carbonate (CaO) was prepared.
- Table 1 shows the measurement results obtained.
- HZSM-5 10 g was impregnated with an aqueous solution of 1.17 g of molybdenum molybdate dissolved in 17 ml of water and calcined at 550 ° C. for 10 hours to obtain a molybdenum-supported HZSM-5 catalyst of Comparative Sample 1.
- Table 1 shows the measurement results obtained.
- Example 1 100 liters of metallosilicate based on silicon oxide (SiO 2) A modified meta-mouth silicate having a modification amount of 1.1 parts by weight with respect to the amount part was prepared.
- Table 2 shows the measurement results obtained.
- a modified metal silicate having a modification amount of 1.1 parts by weight per 100 parts by weight of the metallosilicate was prepared.
- Table 2 shows the measurement results obtained.
- HZSM-11 metallosilicate carrier
- Using 10 g of HZSM-11 as the metallosilicate carrier add 435 mg of 3-methylpropyltriethoxysilane and N-phenylaminopropyltriethoxysilane with an ethanol solution and thoroughly impregnate, then at 120 ° C for 16 hours. Dry and bake at 550 ° C for 4 hours
- the amount of modification is 100 parts by weight of metallosilicate on the basis of silicon oxide (SiO 2).
- a modified meta-mouth silicate with 1.0 part by weight was prepared.
- Table 2 shows the measurement results obtained.
- the amount of modification was 1. for 100 parts by weight of metallosilicate on the basis of acid silicate (SiO 2). 0
- a modified meta-mouth silicate as a part by weight was prepared.
- Table 2 shows the measurement results obtained.
- a modified meta-mouth silicate of 0 part by weight was prepared.
- Table 2 shows the measurement results obtained.
- HZSM-5 10 g was impregnated with an aqueous solution of 1.24 g of ammonium pararhenate dissolved in 17 ml of water, and calcined at 550 ° C for 10 hours to obtain a rhenium-supported HZSM-5 catalyst of Comparative Sample 2. .
- Table 1 shows the measurement results obtained.
- the method for producing an aromatic hydrocarbon of the present invention uses a catalyst in which a metal or an oxide thereof is supported on a metallosilicate support modified with a compound containing silicon, an alkali metal, or an alkaline earth metal. From the initial stage of the reaction using lower hydrocarbons as raw materials, aromatic hydrocarbons mainly composed of benzene can be produced with high selectivity and yield, and the yield decreases little over the reaction time. Therefore, it is possible to provide an efficient method for producing aromatic hydrocarbons using lower hydrocarbons as raw materials.
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US11/816,068 US20090076316A1 (en) | 2005-02-10 | 2006-02-08 | Process for production of aromatic hydrocarbon |
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JP2005208437A JP3835765B2 (ja) | 2005-02-10 | 2005-07-19 | 芳香族炭化水素を製造する方法 |
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US20150065338A1 (en) * | 2009-08-10 | 2015-03-05 | Mississippi State University | Novel catalysts and process for liquid hydrocarbon fuel production |
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US20080193765A1 (en) * | 2005-02-28 | 2008-08-14 | Nippon Sheet Glass Company, Limited | Noble Metal Fine Particle Support and Method of Manufacturing the Same |
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US10850266B2 (en) * | 2009-08-10 | 2020-12-01 | Mississippi State University | Catalysts and process for liquid hydrocarbon fuel production |
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CN102883811B (zh) * | 2010-05-12 | 2016-05-04 | 国际壳牌研究有限公司 | 甲烷芳构化催化剂、制备方法和使用该催化剂的方法 |
CN104148101B (zh) * | 2013-05-13 | 2016-12-28 | 中国科学院大连化学物理研究所 | 一种甲烷无氧直接制烯烃的方法及其催化剂 |
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RU2007133596A (ru) | 2009-03-20 |
KR20070103024A (ko) | 2007-10-22 |
JP2006249065A (ja) | 2006-09-21 |
KR101070554B1 (ko) | 2011-10-05 |
JP3835765B2 (ja) | 2006-10-18 |
US20090076316A1 (en) | 2009-03-19 |
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