CN104001555A - Catalyst or carrier woven by coated wires and production method for catalyst or carrier - Google Patents
Catalyst or carrier woven by coated wires and production method for catalyst or carrier Download PDFInfo
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- CN104001555A CN104001555A CN201410252265.0A CN201410252265A CN104001555A CN 104001555 A CN104001555 A CN 104001555A CN 201410252265 A CN201410252265 A CN 201410252265A CN 104001555 A CN104001555 A CN 104001555A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 239000005416 organic matter Substances 0.000 claims abstract description 9
- 239000012876 carrier material Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000011949 solid catalyst Substances 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 3
- 239000004744 fabric Substances 0.000 claims description 56
- 238000009954 braiding Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 20
- 238000004513 sizing Methods 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 9
- 230000036541 health Effects 0.000 claims description 8
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000009941 weaving Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 201000003373 familial cold autoinflammatory syndrome 3 Diseases 0.000 abstract 5
- 238000001354 calcination Methods 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000037237 body shape Effects 0.000 description 2
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- 229910052878 cordierite Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 240000001085 Trapa natans Species 0.000 description 1
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- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
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- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- 238000009955 starching Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000002383 tung oil Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a method for a catalyst or carrier woven by coated wires. The method comprises the following steps of mixing raw material powder of solid catalyst or carrier materials, an organic matter and water to obtain slurry; coating fiber filaments with a layer of slurry by using a container with the slurry, and drying the fiber filaments to obtain coated wires; weaving the coated wires to form plaids by using a weaving machine, cutting and combining the plaids into a columnar body or a barrel, putting the columnar body or the barrel in water in which an organic adhesive is added, impregnating and adhering the columnar body or the barrel to form an integrated plaid, and reconditioning and drying the integrated plaid at the normal temperature; and putting the integrated plaid in a kiln, and performing calcination to form the structured woven catalyst or carrier. According to the method, the strip-type part of the catalyst is small, so that the outer surface area and the porosity under the same size are increased under the same size; a uniform and reasonable gap is formed between the two adjacent strip-type catalysts, so that the problems of great pressure drop of an engineering catalyst bed, non-uniform coating and even faulted coating are solved.
Description
Technical field
The present invention relates to a kind of catalyst or carrier, specially refer to a kind of catalyst or carrier and manufacture method thereof with coated wire braiding.
Background technology
Along with the development of human civilization, the raising of industrialized level, the mankind also increase day by day to natural resources demand, and natural environment is also difficult to avoid being destroyed.Day by day deficient in this resource, under the day by day severe situation of human residential environment, force us must rational exploitation and utilization natural resources, protect ecological environment.Want reasonable development and use natural resources, protect environment, necessarily require technological innovation, industrial upgrading, to improve the service efficiency of resource, reduces or avoids the destruction to environment.At present at oil, chemical industry, environmental protection, the energy, catalyst often will be used in the fields such as motor vehicle.Conventional catalyst agent carrier mainly contains the shapes such as cellular, spherical, strip, ring-type, or other shape making a variation in shape at these, as clover, and butterfly, band tooth Raschig ring etc.Due to the difficulty on mechanical strength and engineering construction, the one, these catalyst for fixed bed reactors (or carrier) have the limit on volume, such as bar shaped catalyst, minimum aperture wall thickness can only be accomplished the diameter of 1.1 millimeters, again little, will make the pressure drop of bed be elevated to the stage that is difficult to bear, and because outer void rate is little, very easily stop up, thereby engineering application is upper very difficult; The 2nd, because diameter is very little, the intensity of catalyst own is very low, is easy to efflorescence, and to engineering, application causes very burden; The 3rd, catalyst is when dip-coating catalyst layer, and the catalyst layer thickness on tiny hole surface is not quite even, even occurs Catalytic Layer interruption on some hole surfaces, has reduced catalytic effect.
Existing regular formula catalyst carrier is due to the difficulty that is shaped, can only utilize a small amount of material as woven wire, metal perforated plate or ceramic honey comb are done carrier, adopt the mode of coated catalysts to realize, but because base material specific area is too little, not firm or other reason of catalyst bonding of base material and coating, is difficult to adapt to various commercial Application.
Summary of the invention
Problem for traditional catalyst in above-mentioned prior art or carrier existence, the invention provides a kind of comparing with traditional catalyst and have higher activity, can improve preferably its functioning efficiency, reach energy-conserving and environment-protective, create catalyst or carrier and the manufacture method with coated wire braiding of better economic and social benefit.
Catalyst body volume is less, and its activity is higher, by the application of a lot of catalyst, is proved.This is less because of the single volume of catalyst, and external surface area is larger, is arrived the suffered resistance of catalyst center less by product simultaneously, and under the condition of equal physical property, the diffusion by reactant inside and outside catalyst will be better so.In addition, catalyst is made and in unit volume, had identical space, the regular formula shape of weight and external surface area, be conducive to being uniformly distributed at beds by product, thereby make course of reaction more sustainable, product is more controlled, therefore, how resolving catalyst volume catalyst strength too small and that bring on the low side or load inhomogeneous or outer void rate is little and bed pressure drop is excessive etc. problem, is the main technical problem to be solved in the present invention.
The present invention addresses the above problem the technical scheme of taking: a kind of catalyst with coated wire braiding or the manufacture method of carrier, and concrete steps are as follows:
A, first the material powder of solid catalyst or carrier material, organic matter and water etc. are mixed and made into slurry;
B, with fiber wire by a container that fills slurry, make described fiber wire apply one deck slurry, and then will after the shaping of fiber wire coating, enter drying box by sizing aperture, make the slurry that applies on fiber wire evenly and dry;
C and then the fiber wire of oven dry is filled to the container of slurry by the next one, make described fiber wire apply again one deck slurry, and then enter drying box after fiber wire being applied to shaping by sizing aperture, the slurry applying on fiber wire is evenly also dried, so circulation, until fiber wire diameter reaches the requirement of regulation, make coated wire;
D, the coated wire that step c is made are made into checked fabric by seam loop, after cutting, checked fabric are combined into cylinder or cylindrical shell, and are seated in the water that has added organic adhesive dipping and stick into whole checked fabric, and then health is at normal temperatures dry;
E), more whole checked fabric is put into kiln roasting, regular formula braiding catalyst or carrier have been made.
As further improvement, the combination described in step d) is that the mode that described checked fabric is superposeed with interval according to the checked fabric of different lines is combined to form cylinder.
As further improvement, the combination described in step d) is that described checked fabric is combined to form to cylinder according to the checked fabric of identical lines in the mode superposeing successively.
As further improvement, the combination described in step d) is by rolling formation cylindrical shell by one deck checked fabric at least.
A kind of catalyst or carrier with coated wire braiding, it be shaped as cylinder or cylindrical shell, it combines bonding roasting by some layers of checked fabric and forms, described checked fabric is formed by coated wire braiding, described coated wire is by fiber wire and be coated in its lip-deep coat and form, and described coat comprises catalyst material or carrier material.
A kind of catalyst or carrier manufacture method with coated wire braiding:
1), by weight percentage, first activated alumina, auxiliary material, organic matter and water are mixed and made into slurry, described auxiliary material comprises magnesium carbonate, magnesium nitrate, white carbon, at least one in light calcined magnesia;
2), with fiber wire, by a container that fills slurry, make described fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied to shaping by sizing aperture, the slurry applying on fiber wire is evenly also dried, make coated wire;
3), coated wire is cut with automatic cutting equipment, make scale wire rod;
4), with organic or inorganic material, make mould, pack in mould scale wire rod is parallel, then put in the dilute solution with slurry in step 1) and shape, take out health dry, make the semi-finished product after sizing;
5), by sizing after semi-finished product roasting in the environment of 900-1450 ℃, after fiber is oxidized, make cellular active carrier.
Beneficial effect of the present invention: 1. the present invention will make regular formula catalyst or the carrier of making various types of materials become possibility, the present invention directly utilizes existing various mature catalyst (or carrier) material, thereby overcome above difficulty, and retained the excellent results of regular formula catalyst, 2. the present invention adopts the fiber wire that intensity is high, diameter is little, can make the bar shaped of catalyst partly do very littlely (as diameter is less than 0.5 millimeter), has so just improved external surface area and porosity under same volume, 3. the mode by braiding makes to possess between strip catalyst evenly reasonably space simultaneously, it is excessive that this has just solved in engineering beds pressure drop, and the present invention adopts wire rod to apply, the mode of aperture shaping etc., solved again in tradition, apply inhomogeneous, a difficult problem that does not even plan a successor and apply, can make the activity of catalyst Unit Weight increase an order of magnitude (as bar shaped catalyst, the words that the catalytic activity of supposing 1.1 mm dias is 1, the catalytic activity of 0.2-0.5 mm dia is 14, precondition is that the physical property of catalyst is consistent, this is the test effect in heavy-oil hydrogenation, reaction for unchallenged other type of reaction rate, numeral above not necessarily adapts to, but whole rule should be similar, because the activity of catalyst depends on three factors, reaction rate, in, external diffusion speed).
Accompanying drawing explanation
Fig. 1 is the process flow diagram of fiber wire coating molding for the present invention,
Fig. 2 is the square catalyst shape schematic diagram of coated wire braiding for the present invention,
Fig. 3 is rectangle catalyst (or carrier) the shape schematic diagram of coated wire braiding for the present invention,
Fig. 4 is the shape schematic diagram of the regular formula finished product of bulk after the checked fabric stack moulding in Fig. 2 or Fig. 3,
The regular formula catalyst of cylinder that Fig. 5 is the regular formula finished product of the bulk of Fig. 4 after splicing is pruned or the shape schematic diagram of body.
Silk thread frame 2, fiber wire 3, directive wheel 4, slurry tank 5, drying box 6, coated wire 7, take-up stand 8, square lattice cloth 9, parallelogram checked fabric 10, block regular formula type finished product 11, the regular formula type of cylinder finished product 12, sizing aperture in the drawings, 1.
The specific embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, the present invention is described with reference to the accompanying drawings in conjunction with specific embodiments in further detail below.
Embodiment A
1. slurry is made: (described catalyst material comprises platinum, palladium, rhodium, Gu, Molybdenum, nickel etc. to catalyst (or carrier) material powder that needs are applied, described carrier material comprises all known carrier materials for solid catalyst, as activated alumina, magnesia, zirconia, carborundum, silica, titanium oxide etc.) mix with specific organic matter and water, by stirring, make it even, make slurry.For catalyst (or carrier) slurry that makes to apply has certain ductility and elasticity after dry, must in slurry, add some special organic matters, as aqueous polyurethane etc., concrete which kind of organic matter that increases is to guarantee elasticity and ductility, fibrous root refuse to take a passenger body or catalyst material character and determine, as catalyst (or carrier) material is alkalescence, must add anionic polyurethane.In a word, the elasticity of film forming and the lifting that ductility is conducive to silk thread bending property after increase slurry drying;
2. wiring, as shown in Figure 1, the various organic or inorganics of organic or inorganic fiber wire 7(that needs are applied or the fiber wire 2 of blending all can adapt to, which kind of but specifically with fiber wire, must determine according to the character of prepared catalyst or carrier, such as activated alumina coated wire, optional simple glass fiber wire, this glass fibre silk thread not only plays the effect of braiding so, the final reinforcing material that also becomes braiding rear catalyst), on equipment, install, described organic or inorganic fiber wire comprises acrylic fibers silk thread, nylon threads, cotton thread, wool silk thread, glass fibre silk thread, resurrection glass fibre silk thread, ceramic fibre silk thread, carbon fiber silk thread, tinsel etc., this equipment comprises silk thread frame 1, slurry tank 4, the cylinder of directive wheel 3(translator), drying box 5, take-up stand 7 etc.The cylinder of all translators is all synchronous motor type, minimum to guarantee fiber wire resistance in the process of going to, thereby reduces outage; Drying box adopts different temperature according to the difference of silk thread, and as organic fiber silk thread (as acrylic fibers silk thread), baking temperature must, lower than below 60 degree, can make the extensibility of fiber wire less like this.Glass fiber or ceramic fibre silk do not have the requirement of temperature, but the restriction due to organic film-forming temperature or oxidizing temperature in slurry, baking temperature also has the upper limit, actual baking temperature is determined by the specific nature of slurry, such as in slurry, as contained tung oil, baking temperature should not be over 150 degree, because be easy to low-temperature oxidation spontaneous combustion over the dried silk thread of this temperature;
3. starching, applies: the slurry making is poured in slurry tank, machined.Fiber wire passes from slurry tank by the drive of directive wheel, due to the good adhesiveness of slurry, the slurry that the capped a layer thickness of fiber wire differs, but immediately by sizing aperture 12 shapings of template, making to be attached to slurry diameter even and whole coated wire on fiber wire equals or is slightly larger than orifice diameter, be greater than orifice diameter and be because the slurry on fiber wire after the pressurized of aperture, after leaving aperture, have slight expansion, wherein, sizing aperture be the process that successively expands to guarantee the consistency of thickness of each coating---this is conducive to intensity and the stretch-proof performance of fiber wire coating, such as the glass fibre silk thread of 0.1mm is made 0.5mm gamma alumina support line, fiber wire can pass through four sizing aperture 0.2mm-0.3mm-0.4mm-0.5mm, the fiber wire applying enters in drying box dry thereupon, owing to applying each time all very thin (about 0.05-0.15 millimeters thick), so generally can be controlled in 1-15 minute drying time, concrete drying time is by the temperature being dried, drying box humidity, and organic matter in silk thread, the content of water, the decisions such as the thickness of film forming.Dried fiber wire is through next slurry tank again dry, and circulation, until the thickness of film forming reaches requirement, makes coated wire and so forth.Due to the control of template, so the coated wire 6 of this kind of method made is relatively even, and the bending property of coated wire is fine.Although final coated wire film forming layer still can be found some slight slight cracks (vertical with silk thread, due to continuous crooked causing), do not affect catalytic performance and the knitting property of silk thread;
4. braiding: as shown in Figures 2 and 3, the coated wire that has applied catalyst (or carrier) material is made into the cloth of certain lines by the mode of braided glass fibre cloth, as square lattice cloth 8, parallelogram checked fabric 9 etc., can also be the shapes such as rectangle, rhombus;
5. cutting: as shown in Figure 4, the cloth weaving is cut into the geometric figure of regulation, as triangle, quadrangle, pentagon, hexagon, hexagon, octagonal, regular decagon, dodecagon, is the most simply square, can form block regular formula type finished product 10 after stack;
6. combination: the cloth cutting is in layer gathered into folds, reach the height of regulation, can superpose successively with the checked fabric of lines of the same race, for the hole between each layer is not exclusively overlapped, the lines of adjacent two layers cloth is preferably inconsistent.Here the simplest way is: foursquare cloth is comprised of square lattice cloth and parallelogram checked fabric (can be also the checked fabric of other lines) interval, and the lines of parallelogram checked fabric is all parallel with the diagonal of square lattice cloth.Because the diameter of fiber wire has directly determined the thickness of the spacing between the silk thread of coated wire and cloth in cloth therefore, have diametrically definite path, and the path running through between cloth and cloth also to have obtained guarantee between every layer of cloth.Such as the silk thread of 0.4 mm dia, the spacing of adjacent silk thread is 0.4 millimeter at least, and thickness is 1.2 millimeters at least, and crest is on average approximately 0.4 millimeter, trough, and like this, between two layers of cloth, average space height should be 0.8 millimeter.Therefore, no matter axially still radially the regular formula catalyst (or carrier) being formed by such cloth lamination,, have uniform path, certainly, also has other combination, as long as no matter axially can guarantee still radially have uniform path to be all fine;
7. sizing bonding: owing to there is no adhesion between cloth and cloth, therefore, must make by the mode of water-bath and health its bonding.Concrete grammar is, the cloth that lamination combines is immersed in and has added various binding agents (as active aluminum oxide carrier or catalyst cloth can add certain cellulose, aluminium colloidal sol etc.) the 5 minutes time to half an hour in water, then health is at normal temperatures dry, makes its bonding.After having some materials to meet water in cloth, can again show viscosity, as cellulose or polyvinyl alcohol etc., add the effect of binding agent, the cloth after combination is through this kind of dipping-health-can mutually be bonded together after being dried again;
8. roasting: by the roasting of dried combination cloth, concrete sintering temperature and sintering curve and atmosphere are determined according to the character of catalyst (or carrier).Such as gamma aluminium oxide, general firing temperature in 700 degree, if but silk thread used be simple glass fiber wire, firing temperature had better not surpass 650 degree, cause intensity to decline because higher temperature can make the structural deterioration of glass fibre silk thread.If resurrection glass fibre silk thread, more than heatproof can reach 1200 degree, firing temperature can be widened 1200 degree, as makes wide-aperture western tower activated alumina.Certainly, the crystalline phase of target catalyst has also directly limited firing temperature, and as anatase titanium dioxide, its maximum sintering temperature should not surpass 700 degree (herein temperature be degree Celsius), otherwise titanium dioxide will be transformed into rutile phase.In order to make to obtain organic matter in catalyst or carrier, burn, firing atmosphere must be take oxidizing atmosphere as main, and while specifically burning till, air-fuel ratio must be determined according to the situation of different carriers or catalyst;
After catalyst or carrier roasting, can make various cylinder body shapes by actual requirement, the regular formula type of cylinder finished product 11 as shown in Figure 5, black line is splicing line, also can form tetragonal body, the cylinder body shapes such as water chestnut cylinder, the regular formula type of cylinder finished product for example, be formed with following several mode: 1. the catalyst cloth of the cube superposeing after roasting or cuboid can be stitched together, square water cutter at edge is cut into circular arc, 2. when cutting, step 5 is just cut on request directly stack after the same diameter circular of some needs, 3. first the square body larger than the specification requiring made in stack, on square body, water cutter cuts the redundance except circle again, thereby formation cylindrical shape.
Embodiment B
Cloth shape catalyst or the carrier of certain wide cut of one or more layers that 1, utilizes that the method for embodiment A makes are rolled into tubular (being cylindrical shell), make roll type catalyst or the catalyst carrier of certain diameter (by product demand);
2, roll type catalyst or carrier are carried out to water-bath the cloth of reel is bonded together, then health is dry;
3, roasting reel, finally makes roll type catalyst or carrier;
4, this roll type catalyst or carrier can be used for the tail gas clean-up of automobile.
Embodiment C
1, slurry is made: with activated alumina and magnesium carbonate or magnesium nitrate, do raw material, and by finally synthesizing magnalium
The ratio allotment raw material of spinelle, adds certain water and other Organic Ingredients, makes the slurry for applying; Or with activated alumina, white carbon, light calcined magnesia is raw material, by the chemical composition allotment raw material of cordierite, make slurry; Or with activated alumina, be major ingredient, add some other auxiliary material to make slurry;
2, apply: by the method in embodiment A first by 1k, 3k, 6k, the carbon fiber silk thread of 12k or other specification (or other organic fiber silk thread) sets up, and then carbon fiber silk thread is applied, but this coating is disposable, because the slurry thickness applying only needs 0.1-0.3 millimeter enough, and the silk thread after applying can not have the action of winding, so that dried coating does not have slight slight crack, makes coated wire;
3, scale tangent line: coated wire is cut silk thread with automatic cutting equipment after drying box is dry
Cut, make scale wire rod, scale length of wires calculates and gets by the specification requirement of final products;
4, arrange sizing: with organic or inorganic material, make mould, as cylindrical shape or square tube shape etc., scale
Wire rod is parallel to be packed in mould, then puts in order to time of 3-30 minute in the dilute solution of spreading mass, takes out health 3 days or is dried after one week, makes the semi-finished product after sizing;
5, roasting: by the semi-finished product roasting in the environment of 900-1450 degree Celsius after sizing, carbon fiber quilt
After oxidation, make cellular active carrier, specific area can reach 30-160m
2/ g;
6. range of application: the carrier that can be used for purifying vehicle exhaust.Due to existing cordierite shape ceramic honey comb
The too low (1m of specific area
2/ g) left and right, therefore, as the after-treatment of having to of the catalyst carrier of purifying vehicle exhaust, by dipping aluminium colloidal sol or other active material increasing specific surface area to 30-40m
2/ g. the present invention can easily make and be greater than 30m
2/ g, above catalyst carrier, thus for saving noble metal catalyst, created condition, in addition, because aperture can, with the size adjustment of carbon fiber diameter, make cellular catalyst carrier external surface area and can reach 3000m
2/ m
3above, thus make the tail gas clean-up of automobile reach higher standard.
Above-described embodiment is only for clearly describing technical scheme of the present invention so that it will be appreciated by those skilled in the art that rather than the restriction to embodiment.To those of ordinary skill in the art; on the basis of the above-mentioned specific embodiment, can also make other changes in different forms, and the apparent variation made thus or change are still within the protection domain in claim technical scheme of the present invention.
Claims (6)
1. by the catalyst of coated wire braiding or a manufacture method for carrier, it is characterized in that: method step is:
A, first the material powder of solid catalyst or carrier material, organic matter and water are mixed and made into slurry;
B, with fiber wire, by a container that fills slurry, make described fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied to shaping by sizing aperture, make the slurry that applies on fiber wire evenly and dry;
C and then the fiber wire of oven dry is filled to the container of slurry by the next one, make these fiber wires apply again one deck slurry, and then enter drying box after fiber wire being applied to shaping by sizing aperture, the slurry applying on fiber wire is evenly also dried, so circulation, until fiber wire diameter reaches the requirement of regulation, make coated wire;
D, the coated wire that step c is made are made into checked fabric by seam loop, after cutting, checked fabric are combined into cylinder or cylindrical shell, and are seated in the water that has added organic adhesive dipping and stick into whole checked fabric, and then health is at normal temperatures dry;
E, more whole checked fabric is put into kiln roasting, made regular formula braiding catalyst or carrier.
2. a kind of catalyst with coated wire braiding according to claim 1 or the manufacture method of carrier, is characterized in that: the combination described in steps d is that the mode that described checked fabric is superposeed with interval according to the checked fabric of different lines is combined to form cylinder.
3. a kind of catalyst with coated wire braiding according to claim 1 or the manufacture method of carrier, is characterized in that: the combination described in steps d is that described checked fabric is combined to form to cylinder according to the checked fabric of identical lines in the mode superposeing successively.
4. a kind of catalyst with coated wire braiding according to claim 1 or the manufacture method of carrier, is characterized in that: the combination described in steps d is by rolling formation cylindrical shell by described checked fabric.
5. one kind with catalyst or the carrier manufactured by the catalyst of coated wire braiding or the method for carrier described in claim 1, it is characterized in that: described catalyst or support shapes are cylinder or cylindrical shell, it is formed by the some layers of bonding combination roasting of checked fabric, checked fabric is formed by coated wire braiding, described coated wire is by fiber wire and be coated in its lip-deep coat and form, and coat comprises catalyst material or carrier material.
6. catalyst or carrier manufacture method with a coated wire braiding: it is characterized in that:
1), first activated alumina and auxiliary material, organic matter and water are made to slurry, described auxiliary material comprises magnesium carbonate, magnesium nitrate, white carbon, at least one in light calcined magnesia;
2), with fiber wire, by a container that fills slurry, make fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied to shaping by sizing aperture, the slurry applying on fiber wire is evenly dried, make coated wire;
3), coated wire is cut with automatic cutting equipment, make scale wire rod;
4), with organic or inorganic material, make mould, pack in mould scale wire rod is parallel, then put into shaping in the dilute solution in step 1), take out health dry, make the semi-finished product after sizing;
5), by sizing after semi-finished product 1000-1450 ℃ of roasting, after fiber is oxidized, make cellular active carrier.
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| CN111558371A (en) * | 2020-04-20 | 2020-08-21 | 上海海庭环境工程有限公司 | Catalyst preparation method based on ceramic matrix and carbon-based mixture as carrier and matched flat plate type ozone oxidation reactor |
| CN113457703A (en) * | 2021-07-09 | 2021-10-01 | 陕西青朗万城环保科技有限公司 | Catalyst manufacturing process and device |
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| CN104001555B (en) | 2016-01-20 |
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Application publication date: 20140827 Assignee: Shunxinyi New Materials (Jiangxi) Co.,Ltd. Assignor: Yao Guangchun Contract record no.: X2024980016897 Denomination of invention: A coated wire catalyst or carrier and its manufacturing method Granted publication date: 20160120 License type: Common License Record date: 20240927 |