WO2002100540A1 - Vollmetallischer oxidationskatalysator - Google Patents
Vollmetallischer oxidationskatalysator Download PDFInfo
- Publication number
- WO2002100540A1 WO2002100540A1 PCT/EP2002/006263 EP0206263W WO02100540A1 WO 2002100540 A1 WO2002100540 A1 WO 2002100540A1 EP 0206263 W EP0206263 W EP 0206263W WO 02100540 A1 WO02100540 A1 WO 02100540A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- elements
- metal catalyst
- alloy
- catalyst according
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 230000003647 oxidation Effects 0.000 title claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 36
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 10
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000007800 oxidant agent Substances 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 229910052788 barium Inorganic materials 0.000 claims abstract description 4
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 229910052798 chalcogen Inorganic materials 0.000 claims abstract description 4
- 150000001787 chalcogens Chemical class 0.000 claims abstract description 4
- 229910052738 indium Inorganic materials 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 3
- 239000002344 surface layer Substances 0.000 claims abstract description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 11
- 238000005275 alloying Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 150000002739 metals Chemical class 0.000 claims 2
- 238000005496 tempering Methods 0.000 claims 2
- 229910052792 caesium Inorganic materials 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 229910052701 rubidium Inorganic materials 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229960000907 methylthioninium chloride Drugs 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- -1 ammonium ions Chemical class 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000005324 grain boundary diffusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- HZEBHPIOVYHPMT-UHFFFAOYSA-N polonium atom Chemical compound [Po] HZEBHPIOVYHPMT-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
- C01B17/0426—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process characterised by the catalytic conversion
- C01B17/043—Catalytic converters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
Definitions
- the invention relates to a full metal catalyst.
- DE-C 195 03 865 is a catalyst containing manganese, nickel and copper for the oxidation of water constituents in the presence of hydrogen peroxide and oxygen, which is obtained by thermal treatment of one of 10 to 30 wt .-% copper and 5 to 15 wt .- % Nickel and 60 to 80% by weight of manganese existing alloy at temperatures of 400 to 1000 ° C in an oxygen-containing atmosphere for a time of 0.25 to 5 hours.
- the catalyst can additionally contain at least one of the elements iron, chromium, silicon, titanium, aluminum, molybdenum, phosphorus or nitrogen in an amount up to a total of 5% by weight.
- DE-C 195 07 179 describes a catalyst for the oxidation of gaseous sulfur compounds, which consists of an alloy of 50-95% Cu and 5-50% Ni.
- H2S concentration fluctuations can cause temperature peaks of up to 1000 ° C in the catalytic converter.
- this leads to increasing material embrittlement, as a result of which the mechanical stability of the catalyst bed is impaired.
- CLAUS exhaust gases sometimes have considerable ammonia concentrations due to upstream process stages.
- copper can be attacked directly by ammonia or chemically by SO3 formation catalyzed by ammonia / ammonium ions. Both effects - temperature and
- M ⁇ FION COPY Gas composition ultimately affect the life of such a catalyst.
- DE-C 196 10 345 describes a fully metallic catalyst for the oxidation of waste water contaminants, in particular organic dyes, using peracids and / or hydrogen peroxide.
- An alloy is to be used which contains (in mass%) 10 - 60% Co, 5 - 50% Ni, 5 - 20% W and 5 - 25% Cr, the alloy at temperatures in the range of 250 ° C - 1250 ° C for a time of 0.05 h - 3 h is thermally treated in an oxygen-containing atmosphere.
- the object of the invention is to provide a full metal catalyst for oxidation processes in aqueous or gaseous media in the presence of oxidizing agents, which also has a higher thermal and chemical stability with a comparable high activity of the catalyst.
- a full metal catalyst for oxidation processes in aqueous or gaseous media in the presence of oxidizing agents which is composed of at least one alloy element from group I, at least one alloy element from group II and at least one alloy element from group III and the proportion of these alloy elements (in Mass%) from groups I to III is at least 65%, with group I including the alloying elements that exclusively form divalent oxides below the tammant temperature in an oxygen-containing atmosphere, and grouping II the alloying elements belonging to the group II that are below the tammant temperature in an oxygen-containing atmosphere form exclusively trivalent oxides and belong to group III those alloy elements which, depending on the temperature and gas atmosphere, in particular the oxygen partial pressure, form oxides in different oxidation states, and the G stop non-metallic elements - with the exception of chalcogens - in the surface layer of the catalyst (in atomic%) is ⁇ 0.5%.
- Chalcogens are elements of the VI main group of the periodic table, namely oxygen, sulfur, selenium, tellurium and polonium.
- the full metal catalyst according to the invention has comparable activities compared to the prior art, but contains higher thermal and chemical stabilities.
- the subject of the invention deals with solid reactions and their interfaces. Reactions in which one or more solid phases are involved have peculiarities compared to reactions between gases or mutually miscible liquids because of the relatively rigid fixation of their particles in the periodic and aperiodic lattice. In contrast to liquids and gases, solids are rarely in the normal state of thermodynamic equilibrium. Understanding solid reactions requires the elucidation of a whole sequence of steps, whereby physical processes of substance energy and impulse transport are just as important as the actual chemical reactions.
- the mass transport takes place as a change of place for individuals Lattice building blocks either by lattice or volume diffusion, grain boundary diffusion and surface diffusion or by chemical transport via the gas phase.
- the reaction rate is determined by the respective diffusion mechanism and the associated activation energy of the place change process.
- Group I forming the full metal catalyst is based on the following alloying elements: nickel, magnesium, barium, calcium, strontium.
- Group II which forms the full metal catalyst, is based on the following alloy elements: chromium, boron, aluminum, gallium, indium.
- Group III is essentially based on the following alloying elements: iron, copper, manganese, molybdenum, tungsten and vanadium.
- the alloying elements on which the latter group III is based can form oxides of different valency depending on the temperature and gas atmosphere, in particular the oxygen partial pressure. So can Iron is divalent or trivalent, manganese is divalent, trivalent or tetravalent, molybdenum trivalent, tetravalent, pentavalent or hexavalent.
- the alloy contains group I Ni, group II Cr and group III Fe, their content (in% by mass) must be ⁇ 5%.
- the full metal catalyst can be in annealed form, the surface preferably being doped with alkali metals.
- the full metal catalyst is in the form of wire, sheet metal, foil or foam, in the form of knitted fabrics, woven fabrics, honeycomb moldings, structured packings or the like.
- the effectiveness of the catalyst is linked to the presence of oxidizing agents or mixtures of these, in particular oxygen, ozone, nitrogen monoxide, hydrogen peroxide and other peroxo compounds.
- the alloy contains more than 65 mass% of the elements Fe, Ni and Cr.
- proportions of Mo up to 35% by mass and Mn up to 15% by mass can be provided.
- the number of bacteria is determined before the start and after the 3 h.
- the disinfection rate is:
- the catalysts of the invention consistently showed activities in the methylene blue test of over 90% and in the disinfection test a disinfection rate of at least 3 powers of ten (99.9%).
- the correspondingly selected comparison samples also showed a certain effect in both tests, but both samples showed a tendency to corrosion that was too high for practical use.
- the corrosion phenomena in the normal steel were so pronounced after only a few hours that the tests could only be evaluated to a limited extent.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10128132.3 | 2001-06-09 | ||
DE10128132A DE10128132A1 (de) | 2001-06-09 | 2001-06-09 | Vollmetallkatalysator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002100540A1 true WO2002100540A1 (de) | 2002-12-19 |
Family
ID=7687818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/006263 WO2002100540A1 (de) | 2001-06-09 | 2002-06-07 | Vollmetallischer oxidationskatalysator |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10128132A1 (de) |
WO (1) | WO2002100540A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005050806A1 (de) * | 2005-10-24 | 2007-04-26 | Mol Katalysatortechnik Gmbh | Verfahren zur katalysierten oxidativen Abwasserbehandlung |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005062337B4 (de) * | 2005-12-24 | 2009-04-16 | Mol Katalysatortechnik Gmbh | Verfahren zur Erzeugung von arteigenen, biofilmlösenden Stoffen (Biotensiden) |
DE102008036368A1 (de) * | 2008-08-05 | 2010-02-11 | Mol Katalysatortechnik Gmbh | Einrichtung zur Erzeugung und Speicherung von Wasserstoff |
DE102009061021B4 (de) * | 2009-05-20 | 2015-05-07 | VDM Metals GmbH | Verfahren zur Herstellung einer Metallfolie |
DE102010019389B4 (de) * | 2010-05-04 | 2014-03-13 | Mol Katalysatortechnik Gmbh | Verfahren zur Sanierung von Trinkwasserversorgungssystemen |
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US3957682A (en) * | 1973-12-14 | 1976-05-18 | Texaco Inc. | Preparation of methane, hydrogen and carbon monoxide containing gases |
DE4416469C1 (de) * | 1994-05-10 | 1995-09-07 | Juergen Dr Koppe | Nickel, Mangan, Chrom und Eisen enthaltender vollmetallischer Oxidationskatalysator |
DE19503865C1 (de) * | 1995-02-07 | 1996-04-04 | Krupp Vdm Gmbh | Katalysator zur Oxidation von Abwasserinhaltsstoffen |
DE19630043A1 (de) * | 1996-07-25 | 1998-01-29 | Krupp Vdm Gmbh | Manganhaltiger Katalysator zur Oxidation von Verunreinigungen in sauren Abwässern |
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DE19610345C1 (de) * | 1996-03-18 | 1997-11-20 | Krupp Vdm Gmbh | Katalysator zur Oxidation von Abwasserverunreinigungen mittels Persäuren und/oder Wasserstoffperoxid |
-
2001
- 2001-06-09 DE DE10128132A patent/DE10128132A1/de not_active Withdrawn
-
2002
- 2002-06-07 WO PCT/EP2002/006263 patent/WO2002100540A1/de not_active Application Discontinuation
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US3957682A (en) * | 1973-12-14 | 1976-05-18 | Texaco Inc. | Preparation of methane, hydrogen and carbon monoxide containing gases |
DE4416469C1 (de) * | 1994-05-10 | 1995-09-07 | Juergen Dr Koppe | Nickel, Mangan, Chrom und Eisen enthaltender vollmetallischer Oxidationskatalysator |
DE19503865C1 (de) * | 1995-02-07 | 1996-04-04 | Krupp Vdm Gmbh | Katalysator zur Oxidation von Abwasserinhaltsstoffen |
DE19630043A1 (de) * | 1996-07-25 | 1998-01-29 | Krupp Vdm Gmbh | Manganhaltiger Katalysator zur Oxidation von Verunreinigungen in sauren Abwässern |
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DE102005050806A1 (de) * | 2005-10-24 | 2007-04-26 | Mol Katalysatortechnik Gmbh | Verfahren zur katalysierten oxidativen Abwasserbehandlung |
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