WO2013118078A1 - Hexaaluminathaltiger katalysator zur reformierung von kohlenwasserstoffen sowie ein verfahren zur reformierung - Google Patents
Hexaaluminathaltiger katalysator zur reformierung von kohlenwasserstoffen sowie ein verfahren zur reformierung Download PDFInfo
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- WO2013118078A1 WO2013118078A1 PCT/IB2013/051024 IB2013051024W WO2013118078A1 WO 2013118078 A1 WO2013118078 A1 WO 2013118078A1 IB 2013051024 W IB2013051024 W IB 2013051024W WO 2013118078 A1 WO2013118078 A1 WO 2013118078A1
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- Prior art keywords
- range
- catalyst
- mol
- hexaaluminate
- reforming
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- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000002429 nitrogen sorption measurement Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 125000005474 octanoate group Chemical class 0.000 description 1
- 238000004204 optical analysis method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- FNWBQFMGIFLWII-UHFFFAOYSA-N strontium aluminate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2] FNWBQFMGIFLWII-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/78—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 alkali- or alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
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- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
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- 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
- B01J23/83—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 rare earths or actinides
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8946—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali or alkaline earth metals
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/31—Density
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/612—Surface area less than 10 m2/g
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/613—10-100 m2/g
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/40—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/40—Carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0238—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a carbon dioxide reforming step
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1235—Hydrocarbons
- C01B2203/1241—Natural gas or methane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Definitions
- the group Mi comprises elements from the group of rare earth elements
- the group M2 comprises elements from the group of alkaline earth elements
- the group M3 comprises elements from the group of transition metals, wherein Mn, Fe, Co, Ni, Cu, Ag, Au, Rh , Ru, Pd, Ir and Pt.
- F. Yin et al. for the production of hexaaluminates by means of the combustion of urea (ie the so-called urea combustion method), which differs from other disclosures in that the thermal treatment of the starting materials takes place at a much lower temperature than in the otherwise known methods.
- F. Yin et al. indicate that the phase-pure hexaaluminate material was already obtained at 500 ° C. The material obtained had a surface area of 20 m 2 / g.
- Catalyst compared to the pure phase cobalt hexaaluminate has a lower proportion of cobalt (with respect to aluminum) and a higher proportion of cationic species from the group Ba, Sr, La (with respect to cobalt).
- the catalyst according to the invention has a substoichiometric amount of cobalt and a superstoichiometric amount of cationic species from the group Ba, Sr, La.
- the determination of the proportion of hexaaluminate-containing phase can be carried out by diffractometric methods such as Rietfeldverfeintation.
- the proportion of hexaaluminate phase is determined by an optical analysis according to Kubelka-Munk.
- a highly sintered reference sample with the same stoichiometry as the sample to be measured (in terms of the proportion of crystalline phase) is prepared and then set this as the standard sample.
- the samples to be measured are compared to the standard sample for reference, whereby the reference was previously assigned a value of one hundred percent.
- the optical analysis method is preferred for nanocrystalline materials if they have very small crystallites with a short coherence length.
- the aluminum source is preferably a nanoparticulate aluminum-containing starting material or colloidal primary particles.
- peptidized aluminum hydroxides, oxide hydrates or oxides can be used as nanoparticulate aluminium-containing starting materials.
- the peptidization can be carried out by means of organic acids, for example acetic acid, propionic acid, or by means of inorganic acids, for example nitric acid or hydrochloric acid.
- the colloidal particles may be added by means of stabilizers such as surfactants, soluble polymers or salts, or such stabilizers may be used in the production process.
- the colloidal primary particles may also consist of partially hydrolyzed alcoholates.
- shaped bodies of the abovementioned alumina sources which are then brought into contact with the metal compounds.
- shaped articles may be, inter alia, tablets, extrudates or granules or other shaped articles known to the person skilled in the art.
- Further preferred metal compounds are soluble salts, complex compounds or organometallic compounds.
- salts include nitrates, nitrites, carbonates, halides, acetates, octanoates.
- complex compounds include EDTA complexes, complexes with amino acid or amines, complexes with polyols or polyacids, complexes with phosphines.
- organometallic compounds include but are not limited to acetylacetonates, alcoholates, alkyl compounds, aromatics such as cyclopentadienyl adducts.
- Metal salts which do not decompose during the melting or in which the decomposition is kinetically strongly inhibited are preferably used as meltable metal compounds.
- metal salts include nitrates, nitrites, halides, chlorates, bromates, iodates, sulfates, sulfites. Particularly preferred are nitrates, nitrites or salt melts containing nitrates and nitrites.
- Suitable methods for contacting the metal compounds with the aluminum source include impregnation methods in which the metal compounds are dissolved in a suitable solvent, which are subsequently removed by drying. Such a drying step can be carried out in powdery aluminum source by, for example, by freeze or spray drying, alternatively spray granulation can be carried out or purely static drying of the resulting composites done. In the context of the invention, in particular the impregnation is a preferred method.
- Other suitable methods of contacting include kneading or grinding the aluminum source in the presence of the metal compounds with or without the addition of liquids. In particular, the kneading is a preferred method in the context of the invention, since it allows a coupling with a subsequent extrusion and thus may be advantageous for the shaping.
- both materials can be formed which incorporate different cations in the intermediate layer (solid solution formation, ie individual crystallites which incorporate, for example, both strontium and barium in the intermediate layers), as well as those in which only crystallites with a variety of cation species in form the intermediate layer and then exist as a mixture of crystallites, each with different varieties of cation species (ie, for example, a crystal mixture of crystallites having only barium as intermediate plane cations, with crystallites that have only strontium as Eisenebenenkationen).
- both types of mixture ie mixed crystals and crystal mixture are included.
- a possible effect which can be achieved by the addition of the seed crystals consists in lowering the formation temperature of the hexaaluminate phase when carrying out the process according to the invention or in increasing the yield of hexaaluminate-containing phase. It is also not excluded that both the formation temperature is lowered and at the same time the yield is increased. Another advantageous effect in connection with the addition of seed crystals is also a possible shortening of the crystallization time.
- seed crystals in a preferred embodiment of the process according to the invention, these consist of a material with hexaaluminate phase - the target product -, more preferably phase-pure hexaaluminate.
- the seed crystals have a small grain size with a high specific surface, or consist of agglomerates with a small crystallite size and a high specific surface area.
- Seed crystals can be prepared from a suitable hexaaluminate material by subjecting it to a suitable mechanical and / or chemical treatment, such as, for example, grinding in the dry state, milling in the presence of water or milling in the presence of acids or bases.
- the seed crystals are contacted by intensive mixing with the aluminum source.
- This mixing can be done by milling, kneading, mulling or other methods known in the art.
- the mixing of the aluminum source with the seed crystals can be carried out before, during or after contacting with the cobalt-containing and the at least one metal compound.
- the alumina source may be provided in the form of a solid, such as powder or granules, and in liquid form. If the alumina source is in liquid form, it is preferred that the aluminum-containing species be dispersed in or present as colloidal particles in the solvent.
- the stability of the colloidal aluminas and also the formation of the colloidal aluminas can be improved by choosing a pH which is either in the range of 2 to 4.5 or in the range of 8 to 12.5.
- Suitable agents for preparing or stabilizing the colloidal aluminas are acids such as HNO 3, acetic acid or formic acid or bases such as, for example, aqueous NaOH, KOH or ammonia solution.
- a colloidal aluminal solution which has peptidized alumina particles and whose pH is in the range from 2 to 4.5.
- a high specific surface is conducive.
- materials with surfaces greater than 2 m 2 / g are preferred, particularly preferred are materials with surfaces greater than 4 m 2 / g, very particularly preferably materials with surfaces greater than 8 m 2 / g, very particularly preferred Materials with surface areas greater than 15 m 2 / g.
- a shaping process is important for the preparation of the catalyst, so that the catalyst can be suitably used in a tubular reactor.
- the boehmite, which is particularly preferably used aluminum oxide source is preferably particularly finely divided, preferably, the primary particle size in the range of 10 to 500 nm.
- Binder and lubricant can be added to the catalyst material or precursor material used for compaction and tableting.
- a lubricant for example, graphite or stearic acid can be used.
- graphite is used.
- the amount of lubricant is usually not more than 10 wt .-% based on the catalyst material.
- the target fraction by means of a compaction machine, which makes several steps in a row.
- the with the compaction machine produced bulk material may possibly have a lower mechanical stability than the material produced with the pressing machine.
- the suspension is dried by means of a spray drier and subsequently subjected to a calcination process.
- binder material for compaction and tabletting one or more oxides may be added to the catalyst or certain oxides may be formed by special process features or process steps during the synthesis of the material. Such process features or process steps may be, among others: preferred choice of the stoichiometry of the starting compounds, preferred choice of the nature of the starting compounds and in particular of the aluminum source, preferred choice of the thermal treatment steps.
- a particularly suitable binder material has a positive effect on the formation of a high surface area of the catalyst according to the invention.
- the preferred range of the composition is based on the metallic elements and given on the basis of mole percentages.
- the numbers are to be added to one hundred parts, whereby the presence of oxygen is not taken into account.
- the activation process involves the thermal treatment of the catalyst in a reducing gas atmosphere at a temperature in the range of 300 ° C to 900 ° C.
- the catalyst is heated to the process temperature using a controlled heating process.
- the heating rate is preferably in a range of 1 ° C / min to 30 ° C / min, with a range of 5 ° C / min to 15 ° C / min being preferred.
- the activation process is coupled with a conditioning of the catalyst or the conditioning of the activation is connected downstream. Conditioning is a process in which the catalyst is gradually introduced to the process parameters of the target reaction. The conditioning steps effectively prevent uncontrolled coking of the catalyst during the so-called start-up.
- the catalyst E4 which is exemplified by a catalyst according to the invention containing strontium cobalt hexaaluminate, 64.7 g of cobalt acetate, 71.2 g of strontium macetate and 250 g of boehmite (disperal) were used.
- the preparation was carried out analogously to the synthesis procedure described for E3.
- cobalt-containing hexaaluminate samples E1, E2 and E3 could also be used under the reaction conditions of process stages S8 and S9.
- the catalyst samples were tested at a temperature of 950 ° C, the reactant gas having a composition of 42.5% by volume of methane, 42.5% by volume of carbon dioxide and 10% by volume of H2O.
- Catalyst E2 showed very high catalytic activity over an extremely long period of time under high-severity conditions (ie extremely harsh and demanding process conditions) and over a very long time span of more than 250 hours was maintained.
- the catalyst was removed from the reactor with no coke deposits.
- the results thus demonstrate the high coke resistance of the catalyst in the operation of the catalyst under the process conditions given in Table 3.
- a product stream was obtained which had an advantageous ratio of H to CO.
- Table 3 shows the test conditions and results obtained by examining catalyst sample E2 using Test Protocol 2 at modified process stages (S01 to S05). The catalytic measurements were carried out at 850 ° C.
- a reactant gas which contained an equimolar ratio of 27.5% by volume of methane and 27.5% by volume of carbon dioxide and additionally 40% by volume of H 2 O. Subsequently, the equimolar ratio of methane to carbon dioxide was maintained in the next three process stages (S003 - S005) while the water content was gradually lowered from 30 vol% (at process step S003) to 15 vol% (at process step S005).
- Table 4 shows the composition of catalyst sample E4 (the values are in terms of mol%), the associated BET surface area ("surface area”) and the loose bulk density.
- Table 5 shows the test conditions and results obtained in the study of catalyst samples E1, E2, E4 and B2 in the series 3 test.
- test protocol 3 a test protocol was used (test protocol 3) in which the samples were each exposed to five process steps (S001 to S005).
- the catalytic tests were carried out at a temperature of 850 ° C and a pressure of 20 bar.
- Figure 1 shows three diffractograms taken on catalyst samples E1, E2 and E3 according to the invention prior to the catalysis test (i.e., on fresh catalyst samples E1-f through E3-f).
- the diffractograms of all three samples have reflections at 32.08, 34.01 and 36.10 ° 2 ⁇ , respectively, which can be assigned to the cobalt hexaaluminate and, and a reflectance at 33.42 ° 2 ⁇ , which can be assigned to the perovskite phase , Further crystalline phases can not be identified by the present XRD analysis.
- Figure 2 shows two diffractograms taken on catalyst samples E2 before and after the catalysis test and labeled with E2-f (fresh catalyst sample) and E2-g (aged catalyst sample).
- the diffractogram recorded on the sample prior to conducting the catalytic tests shows no difference from the diffractogram recorded on the aged sample. From the investigations it can be seen that the cobalt remains in the hexaaluminate phase and is not dissolved out of it. Cobalt in the form of free metal could not be detected even on the aged sample.
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Abstract
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Priority Applications (7)
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CN201380006895.3A CN104080530B (zh) | 2012-02-10 | 2013-02-07 | 用于重整烃的含六铝酸盐的催化剂和重整方法 |
JP2014556177A JP6238909B2 (ja) | 2012-02-10 | 2013-02-07 | メタン改質方法、ヘキサアルミネート含有触媒、ヘキサアルミネート含有触媒の製造方法 |
CA2864063A CA2864063C (en) | 2012-02-10 | 2013-02-07 | Hexaaluminate-comprising catalyst for the reforming of hydrocarbons and a reforming process |
KR1020147024887A KR20140126366A (ko) | 2012-02-10 | 2013-02-07 | 탄화수소 개질용 헥사알루미네이트-포함 촉매 및 개질 방법 |
RU2014136535A RU2631497C2 (ru) | 2012-02-10 | 2013-02-07 | Содержащий гексаалюминат катализатор риформинга углеводородов и способ риформинга |
EP13747145.4A EP2812111A4 (de) | 2012-02-10 | 2013-02-07 | Hexaaluminathaltiger katalysator zur reformierung von kohlenwasserstoffen sowie ein verfahren zur reformierung |
ZA2014/06561A ZA201406561B (en) | 2012-02-10 | 2014-09-08 | Hexaaluminate-comprising catalyst for reforming of hydrocarbons and reforming process |
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PCT/IB2013/051024 WO2013118078A1 (de) | 2012-02-10 | 2013-02-07 | Hexaaluminathaltiger katalysator zur reformierung von kohlenwasserstoffen sowie ein verfahren zur reformierung |
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EP (1) | EP2812111A4 (de) |
JP (1) | JP6238909B2 (de) |
KR (1) | KR20140126366A (de) |
CN (1) | CN104080530B (de) |
CA (1) | CA2864063C (de) |
RU (1) | RU2631497C2 (de) |
WO (1) | WO2013118078A1 (de) |
ZA (1) | ZA201406561B (de) |
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EP2886514A1 (de) | 2013-12-20 | 2015-06-24 | Basf Se | Verfahren zur Reformierung von Gemischen aus Kohlenwasserstoffen und Kohlendioxid |
JP2015131286A (ja) * | 2014-01-16 | 2015-07-23 | 株式会社村田製作所 | 触媒およびそれを用いて実施される改質方法 |
DE102014011213A1 (de) | 2014-07-29 | 2016-02-04 | Linde Aktiengesellschaft | Verfahren zur Synthesegasherstellung |
WO2016062853A1 (de) * | 2014-10-24 | 2016-04-28 | Basf Se | Hochtemperatursynthese von aluminaten durch flammen-sprühpyrolyse |
WO2018219992A1 (de) | 2017-06-02 | 2018-12-06 | Basf Se | Verfahren zur kohlenstoffdioxid-hydrierung in gegenwart eines nickel- und magnesiumspinellhaltigen katalysators |
EP3574994A1 (de) | 2018-05-30 | 2019-12-04 | Basf Se | Verfahren zur herstellung von katalysatormonolithen zur reformierung von kohlenwasserstoffen |
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WO2021152114A1 (en) | 2020-01-31 | 2021-08-05 | Basf Se | A process for preparing a molding, a molding and use thereof as methane reforming catalyst |
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KR20180030633A (ko) * | 2015-07-09 | 2018-03-23 | 우미코레 아게 운트 코 카게 | Nh3-scr 활성, 암모니아 산화 활성, 및 휘발성 바나듐 및 텅스텐 화합물에 대한 흡착능을 갖는 삼원 촉매 |
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Also Published As
Publication number | Publication date |
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KR20140126366A (ko) | 2014-10-30 |
CN104080530B (zh) | 2018-08-07 |
RU2014136535A (ru) | 2016-04-10 |
EP2812111A1 (de) | 2014-12-17 |
ZA201406561B (en) | 2016-08-31 |
EP2812111A4 (de) | 2015-11-18 |
CA2864063C (en) | 2021-06-01 |
CA2864063A1 (en) | 2013-08-15 |
JP2015511209A (ja) | 2015-04-16 |
CN104080530A (zh) | 2014-10-01 |
JP6238909B2 (ja) | 2017-11-29 |
RU2631497C2 (ru) | 2017-09-25 |
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