CN104001555B - A kind of coated wire catalyst or carrier and manufacture method thereof - Google Patents
A kind of coated wire catalyst or carrier and manufacture method thereof Download PDFInfo
- Publication number
- CN104001555B CN104001555B CN201410252265.0A CN201410252265A CN104001555B CN 104001555 B CN104001555 B CN 104001555B CN 201410252265 A CN201410252265 A CN 201410252265A CN 104001555 B CN104001555 B CN 104001555B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carrier
- slurry
- wire
- coated wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses the manufacture method of a kind of coated wire catalyst or carrier, first the material powder of solid catalyst or carrier material, organic matter and water are mixed and made into slurry; With fiber wire, filled the container of slurry by one, after making described fiber wire apply the oven dry of one deck slurry, make coated wire; Obtained coated wire is made into checked fabric by seam loop, after cutting, checked fabric is combined into cylinder or cylindrical shell, and is seated in dipping in the water adding organic adhesive and sticks into overall checked fabric, and then health is at normal temperatures dry; Again overall checked fabric is put into kiln roasting, make regular formula braiding catalyst or carrier.The present invention the These strip-shaped sections of catalyst can be made to do very little, improve the external surface area under same volume and porosity; Make to possess between strip catalyst evenly reasonably space by the mode of braiding, solve beds pressure drop in engineering excessive, solve in tradition apply uneven, even not plan a successor the difficult problem of coating.
Description
Technical field
The present invention relates to a kind of catalyst or carrier, be related specifically to a kind of coated wire catalyst or carrier and manufacture method thereof.
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 situation that human residential environment is day by day severe, force us must rational exploitation and utilization natural resources, protect ecological environment.Want reasonable development and use natural resources, protecting environment, necessarily require technological innovation, industrial upgrading, to improve the service efficiency of resource, reduce or avoid 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 support mainly contains cellular, spherical, strip, the shapes such as ring-type, or in other shape that these make a variation in shape, as clover, butterfly, band tooth Raschig ring etc.Due to the difficulty in mechanical strength and engineering construction, one is that these catalyst for fixed bed reactors (or carrier) have the limit on volume, such as bar shaped catalyst, minimum aperture wall thickness can only accomplish the diameter of 1.1 millimeters, little again, the pressure drop of bed will be made to be elevated to the stage being difficult to bear, and due to outer void rate little, very easily block, thus engineer applied is difficult to; Two is because diameter is very little, and the intensity of catalyst own is very low, is easy to efflorescence, causes very burden to engineer applied; Three be catalyst when dip-coating catalyst layer, the catalyst layer thickness on tiny hole surface is not quite even, some hole surfaces even occurs Catalytic Layer is interrupted, and reduces catalytic effect.
Existing regular formula catalyst carrier is due to forming difficulty, a small amount of material can only be utilized as woven wire, metal perforated plate or ceramic honey comb do carrier, the mode of coated catalysts is adopted to realize, but because base material specific area is too little, the catalyst of base material and coating bonds loosely or other reason, is difficult to adapt to various commercial Application.
Summary of the invention
For traditional catalyst in above-mentioned prior art or carrier Problems existing, the invention provides and a kind ofly have higher activity compared with traditional catalyst, its functioning efficiency can be improved preferably, reach energy-conserving and environment-protective, create the coated wire catalyst of better economic and social benefit or carrier and manufacture method.
Catalyst body volume is less, and its activity is higher, prove by the application of a lot of catalyst.This is because the single volume of catalyst is less, external surface area is larger, and the resistance simultaneously arrived suffered by catalyst center by product is less, so under the condition of equal physical property, and will be better by the diffusion of reactant inside and outside catalyst.In addition, catalyst is made in unit volume and has identical space, the regular formula shape of weight and external surface area, be conducive to by product being uniformly distributed at beds, thus making course of reaction more sustainable, product is more controlled, therefore, how resolving catalyst volume too small and the catalyst strength brought is on the low side or load uneven 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's technical scheme taked that solves the problem is: the manufacture method of a kind of coated wire catalyst or 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, filled the container of slurry by one with fiber wire, make described fiber wire apply one deck slurry, and then enter drying box by sizing aperture by after the shaping of fiber wire coating, make slurry that fiber wire applies evenly and dry;
C and then by the fiber wire of oven dry by the next container filling slurry, described fiber wire is made to apply one deck slurry again, and then enter drying box after fiber wire being applied shaping by sizing aperture, make slurry that fiber wire applies evenly and dry, circulation like this, until fiber wire diameter reaches the requirement of regulation, make coated wire;
D, coated wire obtained for step c is made into checked fabric by seam loop, after cutting, checked fabric is combined into cylinder or cylindrical shell, and be seated in dipping in the water adding organic adhesive and stick into overall checked fabric, then health is at normal temperatures dry;
E), more overall checked fabric is put into kiln roasting, make regular formula braiding catalyst or carrier.
As further improvement, the combination described in step d) is that the mode that described checked fabric superposes 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 cylinder according to the checked fabric of identical lines in the mode superposed successively.
As further improvement, the combination described in step d) is by rolling formation cylindrical shell by least one deck checked fabric.
A kind of coated wire catalyst or carrier, its shape is cylinder or cylindrical shell, it combines bonding roasting by some layers of checked fabric and forms, described checked fabric is woven by coated wire and forms, described coated wire is formed by fiber wire and coating coat in its surface, and described coat comprises catalyst material or carrier material.
A kind of cellular coated wire catalyst or carrier manufacture method:
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, filled the container of slurry by one, make described fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied shaping by sizing aperture, make slurry that fiber wire applies evenly and dry, making coated wire;
3), by coated wire automatic cutting equipment cut, obtained scale wire rod;
4), with organic or inorganic material make mould, in parallel for scale wire rod loading mould, then put into and shape with in the dilute solution of slurry in step 1), take out health drying, the semi-finished product namely after obtained sizing;
5), by the semi-finished product roasting in the environment of 900-1450 DEG C after sizing, after fiber is oxidized, i.e. obtained cellular catalyst or active carrier.
Beneficial effect of the present invention: the 1. regular formula catalyst or carrier that make making all kinds material are become possibility by the present invention, the present invention directly utilizes existing various mature catalyst (or carrier) material, thus overcome above difficulty, and remain the excellent results of regular formula catalyst, 2. the present invention adopts the fiber wire that intensity is high, diameter is little, the These strip-shaped sections of catalyst can be made to do very little (as diameter is less than 0.5 millimeter), which improves the external surface area under same volume and porosity, 3. make to possess between strip catalyst evenly reasonably space by the mode of braiding simultaneously, which solves beds pressure drop in engineering excessive, and the present invention adopts wire rod to apply, the mode of aperture shaping etc., solve again in tradition apply uneven, even do not plan a successor the difficult problem applied, the activity of catalyst Unit Weight can be made to increase an order of magnitude (as bar shaped catalyst, assuming that the catalytic activity of 1.1 mm dias is the words of 1, then 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, for the reaction of reaction rate other type unchallenged, 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 the present invention's fiber wire coating molding,
Fig. 2 is the square catalyst shape schematic diagram of the present invention's coated wire braiding,
Fig. 3 is rectangle catalyst (or carrier) schematic shapes of the present invention's coated wire braiding,
Fig. 4 be the checked fabric superposition in Fig. 2 or Fig. 3 shaping after the schematic shapes of the regular formula finished product of bulk,
Fig. 5 is the cylinder regular formula catalyst of bulk regular formula finished product after splicing is pruned or the schematic shapes of body of Fig. 4.
In the drawings, 1, 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, cylinder regular formula type finished product 12, sizing aperture.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, in further detail the present invention is described in conjunction with specific embodiments with reference to the accompanying drawings below.
Embodiment A
1. slurry makes: by needing catalyst (or carrier) material powder of coating, (described catalyst material comprises platinum, palladium, rhodium, Gu, Molybdenum, nickel etc., 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, make it even by stirring, obtained slurry.Certain ductility and elasticity is had after the drying in order to make the catalyst of coating (or carrier) slurry, some special organic matters must be added in the slurry, as aqueous polyurethane etc., which kind of organic matter of concrete increase is to ensure elasticity and ductility, the character of fibrous root data carrier or catalyst material and determining, if catalyst (or carrier) material is in alkalescence, then anionic polyurethane must be added.In a word, the lifting that the elasticity of film forming after slurry drying and ductility are conducive to silk thread bending property is increased;
2. wiring, as shown in Figure 1, the fiber wire 2 of the various organic or inorganic of organic or inorganic fiber wire 7(or blending that need coating all can be adapted to, but specifically which kind of fiber wire must comply with the character of obtained catalyst or carrier with and determine, such as activated alumina coated wire, then optional simple glass fiber wire, so this glass fibre silk thread not only plays the effect of braiding, the final reinforcing material also becoming braiding rear catalyst), equipment installs, 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 ensure fiber wire resistance in the process gone to, thus 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 less than 60 degree, can make the extensibility of fiber wire less like this.Glass fiber or ceramic fibre silk then do not have the requirement of temperature, but due to the restriction of film-forming temperature organic in slurry or oxidizing temperature, baking temperature also has the upper limit, actual baking temperature is determined by the specific nature of slurry, in such as slurry as containing tung oil then baking temperature no more than 150 degree because exceed the dried silk thread of this temperature to be easy to low-temperature oxidation spontaneous combustion;
3. starching, coating: obtained slurry is poured in slurry tank, machines.Fiber wire is passed from slurry tank by the drive of directive wheel, due to the adhesiveness that slurry is excellent, the slurry that a layer thickness that is capped fiber wire differs, but immediately by sizing aperture 12 shaping of template, make to be attached to that slurry on fiber wire is even and diameter that is whole coated wire equals or slightly larger than orifice diameter, being greater than orifice diameter is because the slurry on fiber wire is after the pressurized of aperture, slight expansion is had after leaving aperture, wherein, sizing aperture be the process that successively expands to ensure the consistency of thickness of each coating---this is conducive to intensity and the stretch-proof performance of fiber wire coating, the glass fibre silk thread of such as 0.1mm makes 0.5mm gamma alumina support line, fiber wire is by four sizing aperture 0.2mm-0.3mm-0.4mm-0.5mm, the fiber wire of coating enters in drying box dry thereupon, owing to applying each time all very thin (about 0.05-0.15 millimeters thick), so drying time generally can be controlled in 1-15 minute, concrete drying time is by the temperature of drying, 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 also again dry through next slurry tank, circulates and so forth, till the thickness of film forming reaches requirement, and obtained coated wire.Due to the control of template, the coated wire 6 therefore made by this kind of method is relatively even, and the bending property of coated wire is fine.Although final coated wire film forming layer still can find some slight slight cracks (vertical with silk thread, to cause owing to constantly bending), do not affect catalytic performance and the knitting property of silk thread;
4. weave: as shown in Figures 2 and 3, the mode of the coated wire braided glass fibre cloth being coated with catalyst (or carrier) material is made into the cloth of certain lines, as square lattice cloth 8, parallelogram checked fabric 9 etc., it can also be the shape such as rectangle, rhombus;
5. cutting: as shown in Figure 4, is cut into the geometric figure of regulation by the cloth woven, as triangle, and quadrangle, pentagon, hexagon, hexagon, octagonal, regular decagon, dodecagon, is the most simply square, can forms block regular formula type finished product 10 after superposition;
6. combine: in layer gathered into folds by the cloth cut, reach the height of regulation, can superpose successively with the checked fabric of lines of the same race, in order to make the hole between each layer not exclusively overlap, the lines of adjacent two layers cloth is preferably inconsistent.Here the simplest way is: foursquare cloth is made up of square lattice cloth and parallelogram checked fabric (also can be the checked fabric of other lines) interval, and the lines of parallelogram checked fabric is all parallel with the diagonal of square lattice cloth.Due to the thickness of the spacing between the silk thread that the diameter of fiber wire directly determines coated wire in cloth and cloth, therefore, have the path determined between every layer of cloth diametrically, and the path run through between cloth and cloth have also been obtained guarantee.The such as 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 about 0.4 millimeter, trough, and like this, space height average between two layers of cloth should be 0.8 millimeter.Therefore, by the regular formula catalyst (or carrier) of such cloth lamination, no matter axial or radial, there is uniform path, certainly, also there is other combination, as long as no matter axially or radial can ensure, have uniform path to be all fine;
7. sizing bonding: owing to not having adhesion between cloth and cloth, therefore, it must be made to bond by the mode of water-bath and health.Concrete grammar is, cloth good for stack combinations is immersed in and with the addition of various binding agent (as active aluminum oxide carrier or catalyst cloth can add certain cellulose, Alumina gel etc.) water in the 5 minutes time to half an hour, then health is at normal temperatures dry, makes it bond.Meet after water owing to there being some materials in cloth and again can show viscosity, as cellulose or polyvinyl alcohol etc., add the effect of binding agent, the cloth after combination can mutually be bonded together after the drying of this kind of dipping-health-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 within 700 degree, but if silk thread used be simple glass fiber wire, firing temperature, preferably not more than 650 degree, causes intensity to decline because higher temperature can make the structural deterioration of glass fibre silk thread.If resurrection glass fibre silk thread, heatproof can reach more than 1200 degree, then firing temperature can widen 1200 degree, as made wide-aperture western tower activated alumina.Certainly, the crystalline phase of final catalyst also directly limit firing temperature, and as anatase titanium dioxide, its maximum sintering temperature is no more than 700 degree (herein temperature be degree Celsius), otherwise titanium dioxide will be transformed into rutile phase.In order to make in catalyst or carrier organic matter burns, firing atmosphere must based on oxidizing atmosphere, and when specifically burning till, air-fuel ratio must be determined according to the situation of different carriers or catalyst;
After catalyst or carrier calcination, various cylinder body shape can be made by actual requirement, the regular formula type of cylinder as shown in Figure 5 finished product 11, black line is splicing line, also tetragonal body can be formed, the cylinder body shapes such as water chestnut cylinder, such as cylinder regular formula type finished product, be formed with following several mode: 1. the catalyst cloth of the cube superposed after roasting or cuboid can be stitched together, circular arc is cut at the square water cutter at edge, 2. directly superpose after being just cut into the some pieces of same diameter circulars needed on request when step 5 cuts, 3. first the square body larger than the specification required is made in superposition, redundance is than a circular one cut with water cutter again on square body, thus formation cylindrical shape.
Embodiment B
Cloth shape catalyst or the carrier of one or more layers the certain wide cut 1, utilizing the method for embodiment A to make are rolled into tubular (i.e. cylindrical shell), make roll type catalyst or the catalyst carrier of certain diameter (by product demand);
2, roll type catalyst or carrier being carried out water-bath makes the cloth of reel be bonded together, and then health is dry;
3, roasting reel, final obtained 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 makes: do raw material with activated alumina and magnesium carbonate or magnesium nitrate, and by finally synthesizing magnalium
The ratio allotment raw material of spinelle, adding certain water and other Organic Ingredients, making the slurry for applying; Or with activated alumina, white carbon, light calcined magnesia is raw material, obtain slurry by the chemical composition allotment raw material of cordierite; Or be major ingredient with activated alumina, add some other auxiliary material and obtain slurry;
2, apply: by the method in embodiment A first by 1k, 3k, 6k, the carbon fiber silk thread (or other organic fiber silk thread) of 12k or other specification sets up, and then applies carbon fiber silk thread, but this coating is disposable, because the slurry thickness of coating only needs 0.1-0.3 millimeter namely enough, and the silk thread after coating can not have winding action, so that dried coating does not have slight slight crack, makes coated wire;
3, scale tangent line: namely coated wire is cut silk thread with automatic cutting equipment after drying box drying
Cut, obtained scale wire rod, scale length of wires calculates by the specification requirement of final products and gets;
4, arrangement sizing: make mould with organic or inorganic material, as cylindrical shape or square tube shape etc., in parallel for scale wire rod loading mould, then put the time of in the dilute solution in order to spreading mass 3-30 minute into, take out health 3 days or drying after a week, the semi-finished product namely after obtained sizing;
5, roasting: by the semi-finished product roasting in the environment of 900-1450 degree Celsius after sizing, carbon fiber quilt
After oxidation, i.e. obtained 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, the catalyst carrier as purifying vehicle exhaust is had to after-treatment, by dipping Alumina gel or other active material increasing specific surface area to 30-40m
2/ g. the present invention easily can obtain and be greater than 30m
2/ g, above catalyst carrier, thus create condition for saving noble metal catalyst, in addition, because aperture can with the size adjustment of carbon fiber diameter, obtained cellular catalyst carrier external surface area can reach 3000m
2/ m
3above, thus make the standard that the tail gas clean-up of automobile reaches higher.
Above-described embodiment is only for clearly describing technical scheme of the present invention with the restriction making to it will be appreciated by those skilled in the art that instead of to embodiment.To those of ordinary skill in the art; the basis of above-mentioned detailed description of the invention can also make other changes in different forms, and apparent change made thus or variation are still within the protection domain of 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, filled the container of slurry by one, make described fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied shaping by sizing aperture, make slurry that fiber wire applies evenly and dry;
C and then by the fiber wire of oven dry by the next container filling slurry, these fiber wires are made to apply one deck slurry again, and then enter drying box after fiber wire being applied shaping by sizing aperture, make slurry that fiber wire applies evenly and dry, circulation like this, until fiber wire diameter reaches the requirement of regulation, make coated wire;
D, coated wire obtained for step c is made into checked fabric by seam loop, after cutting, checked fabric is combined into cylinder or cylindrical shell, and be seated in dipping in the water adding organic adhesive and stick into overall checked fabric, then health is at normal temperatures dry;
E, more overall checked fabric is put into kiln roasting, make regular formula braiding catalyst or carrier.
2. a kind of catalyst of 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 superposes with interval according to the checked fabric of different lines is combined to form cylinder.
3. a kind of catalyst of 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 cylinder according to the checked fabric of identical lines in the mode superposed successively.
4. a kind of catalyst of 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 described in claim 1 with coated wire braiding catalyst or carrier method manufacture catalyst or carrier, 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 woven by coated wire and forms, described coated wire is formed by fiber wire and coating coat in its surface, and coat comprises catalyst material or carrier material.
6. the manufacture method of a cellular coated wire catalyst or carrier: it is characterized in that:
1), first activated alumina, auxiliary material, organic matter and water are made slurry, described auxiliary material comprises at least one in magnesium carbonate, magnesium nitrate, white carbon, light calcined magnesia;
2), with fiber wire, filled the container of slurry by one, make fiber wire apply one deck slurry, and then enter drying box after fiber wire being applied shaping by sizing aperture, the slurry that fiber wire applies evenly is dried, makes coated wire;
3), by coated wire automatic cutting equipment cut, obtained scale wire rod;
4), with organic or inorganic material make mould, in parallel for scale wire rod loading mould, then put in the slurry in step 1) and shape, take out health drying, the semi-finished product namely after obtained sizing;
5), by the semi-finished product after sizing 1000-1450 DEG C of roasting, after fiber is oxidized, i.e. obtained cellular catalyst or active carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252265.0A CN104001555B (en) | 2014-05-21 | 2014-06-10 | A kind of coated wire catalyst or carrier and manufacture method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213077 | 2014-05-21 | ||
| CN201410213077.7 | 2014-05-21 | ||
| CN201410252265.0A CN104001555B (en) | 2014-05-21 | 2014-06-10 | A kind of coated wire catalyst or carrier and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104001555A CN104001555A (en) | 2014-08-27 |
| CN104001555B true CN104001555B (en) | 2016-01-20 |
Family
ID=51362629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252265.0A Active CN104001555B (en) | 2014-05-21 | 2014-06-10 | A kind of coated wire catalyst or carrier and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104001555B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558371B (en) * | 2020-04-20 | 2023-12-15 | 上海海庭环境工程有限公司 | Preparation method of catalyst based on ceramic base and carbon base mixture as carrier and matched flat-plate 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597903Y (en) * | 2002-06-18 | 2004-01-07 | 朱戈 | Solar photocatalysis heat collecting pipe |
| CN101274291B (en) * | 2008-05-09 | 2011-10-19 | 大连理工大学 | Method for covering aluminum oxide coating on honeycomb shaped wire mesh carrier |
| US8137748B2 (en) * | 2008-08-27 | 2012-03-20 | Korea University Research And Business Foundation | Fiber including silica and metal oxide |
| CN102698730B (en) * | 2012-05-11 | 2014-04-09 | 沈阳化工大学 | Preparation method of hollow boron/cerium co-doped nanometer titanium dioxide fiber material |
-
2014
- 2014-06-10 CN CN201410252265.0A patent/CN104001555B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104001555A (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4148997B2 (en) | Method for producing ternary conversion catalyst | |
| CN104039426B (en) | Exhaust gas purification catalyst | |
| AU728946B2 (en) | Exhaust gas catalyst | |
| CN103191718A (en) | Preparation method of low-cost honeycomb denitration catalyst | |
| CN104001555B (en) | A kind of coated wire catalyst or carrier and manufacture method thereof | |
| US20110305617A1 (en) | Catalyst and method for removing formaldehyde using the same | |
| JP6426650B2 (en) | Exhaust gas purification catalyst | |
| JPH0217947A (en) | Ceramic film structural body | |
| CN104437473B (en) | Thin shell type catalyst and preparation method thereof | |
| CN107051428B (en) | Preparation method of eggshell type catalyst | |
| CN103896623A (en) | Ceramic carrier material and preparation method thereof | |
| CN103619472A (en) | Catalyst for exhaust gas purification | |
| CN107185527A (en) | A kind of preparation method of eggshell type dehydrogenation catalyst | |
| CN101428238A (en) | Layered composite carrier with thermal stability | |
| CN105251542A (en) | Ceramic-fiber-based catalyst carrier and preparing method thereof | |
| CN100553766C (en) | The preparation method who is used for catalyst for preparing phenylethylene from dehydrogenation of ethylbenzene | |
| CN103736524B (en) | The preparation method of hydrocarbon conversion catalyst carrier | |
| CN105013495A (en) | Methanation catalyst with magnesium-aluminium composite oxide as carrier and preparation method therefor | |
| CN208032586U (en) | A kind of low temperature SCR denitration catalyst with integral honeycomb shape | |
| CN101628233B (en) | Method for preparing honeycomb ceramic type perovskite integral catalyst adopting goyazite oxide as coating | |
| JP2616043B2 (en) | Catalysts and catalyst supports | |
| CN209411767U (en) | A kind of hydrogen production system employing reforming technology based on Fe-Cr-Al wire cluster carrier | |
| CN105457636B (en) | A kind of method of regulation and control metal active constituent spatial distribution in industrial egg-shell catalyst | |
| CN103623818B (en) | A kind of thin shell shaped noble metal catalyst and preparation method thereof | |
| CN104226373B (en) | Honeycomb catalyst for removing nitrogen oxides from exhaust gas and method for producing same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |