CN111558400A - Catalyst porous ceramic carrier with high surface area - Google Patents
Catalyst porous ceramic carrier with high surface area Download PDFInfo
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- CN111558400A CN111558400A CN202010374838.2A CN202010374838A CN111558400A CN 111558400 A CN111558400 A CN 111558400A CN 202010374838 A CN202010374838 A CN 202010374838A CN 111558400 A CN111558400 A CN 111558400A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 166
- 239000000919 ceramic Substances 0.000 title claims abstract description 45
- 239000000376 reactant Substances 0.000 claims abstract description 45
- 238000009792 diffusion process Methods 0.000 claims abstract description 39
- 239000000969 carrier Substances 0.000 claims abstract description 30
- 238000001179 sorption measurement Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 30
- 238000004806 packaging method and process Methods 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000002775 capsule Substances 0.000 claims description 8
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 4
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 235000010216 calcium carbonate Nutrition 0.000 claims description 4
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 229960001471 sodium selenite Drugs 0.000 claims description 4
- 239000011781 sodium selenite Substances 0.000 claims description 4
- 235000015921 sodium selenite Nutrition 0.000 claims description 4
- 239000012876 carrier material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 10
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 238000007569 slipcasting Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 88
- 238000005266 casting Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a catalyst porous ceramic carrier with high surface area, belonging to the technical field of catalyst carriers, wherein an outer arched porous carrier and an inner arched porous carrier are sintered into an arched structure, a first catalyst pouring layer and a second catalyst pouring layer are distributed in the outer arched porous carrier and the inner arched porous carrier in a staggered manner, a catalyst and adsorption gel is adopted for slip casting molding, impurities in reactants are easy to capture, a contact reaction space is provided for the catalyst, the contact reaction area of the reactants and the catalyst is enlarged, meanwhile, the reactants can be ensured to flow through the first catalyst pouring layer and the second catalyst pouring layer which are distributed inside and outside in the conduction process under the premise that a reactant conduction gap is reserved, in addition, a plurality of catalyst loading layers are arranged in a distributed diffusion carrier channel, and the catalyst loading layers also realize catalytic reaction after adsorption of the impurities in the reactants, and gaps are formed among the catalyst loading layers, so that the conduction and blockage of reactants are effectively avoided.
Description
Technical Field
The invention relates to the technical field of catalyst carriers, in particular to a catalyst porous ceramic carrier with high surface area.
Background
The catalyst support supports the active components during the catalytic reaction, giving the catalyst a specific physical form, but the support itself does not have catalytic activity. The traditional catalyst carrier mainly comprises natural minerals, adsorbents, glass, high molecular polymers and the like, while the porous ceramic catalyst carrier has the advantages of high specific surface area, high temperature resistance, thermal shock resistance, corrosion resistance and the like, so that the porous ceramic catalyst carrier is a catalyst carrier type which is widely concerned in recent years
The prior art catalyst supports have shapes of sheets, rings, spheres and other irregular shapes. These catalyst carriers having different shapes can effectively adsorb the catalyst. The uniform and high distribution of the catalyst is extremely important to the adsorption effect of the reactants. In the prior art, catalysts are only paved on a catalyst carrier layer by layer or filled in the catalyst carrier layer by layer, although the surface area of the catalyst is increased, the distribution of the catalysts is too tight, and certain influence is often caused on the liquidity of reactants; in addition, the trapping adsorption of the catalyst carrier to the reactant in the prior art needs to be improved.
Therefore, a catalyst porous ceramic carrier with high surface area is provided to effectively improve the using effect of the existing carrier.
Disclosure of Invention
1. Technical problem to be solved
In view of the problems in the prior art, the present invention aims to provide a catalyst porous ceramic support with high surface area.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A catalyst porous ceramic carrier with high surface area comprises a distribution diffusion carrier channel and a reactant inlet fixedly connected to the bottom end of the distribution diffusion carrier channel, wherein outer arched porous carriers are fixedly connected to two sides of the upper end of the distribution diffusion carrier channel through arched bearing plates, inner arched porous carriers with packaging plates are arranged inside the two outer arched porous carriers, the left and right ends of the distribution diffusion carrier channel are respectively communicated with the inner bottoms of the two packaging plates through air guide tubes, first grouting through holes and second grouting through holes are respectively formed in the inner arched porous carriers and the inner arched porous carriers along the axis direction of the carriers, first catalyst pouring layers and second catalyst pouring layers are respectively poured in the first grouting through holes and the second grouting through holes, and the first catalyst pouring layers and the second catalyst pouring layers are arranged in an internally-externally staggered manner, the catalyst loading device is characterized in that a plurality of catalyst loading layers are arranged on two sides of the inside of the distribution diffusion carrier channel, the catalyst loading layers are distributed in the inside of the carrier channel in an irregular mode, and the catalyst loading layers divide the inside of the distribution diffusion carrier channel into a plurality of gap diversion cavities.
Furthermore, the outer arched porous carrier and the inner arched porous carrier are both porous ceramic carriers, the porous ceramic carriers are prepared by mixing and sintering ceramic fibers, pore-forming agents and biochar, the pore-forming agents include but are not limited to one or more of ammonium bicarbonate, calcium carbonate and sodium selenite, the pore-forming agents are added into raw materials, gases such as carbon dioxide and the like are released by heating, the generated gases overflow from the raw materials to generate a pore structure, and meanwhile, the outer arched porous carriers and the inner arched porous carriers are both arched structures, so that the contact reaction area of reactants and catalysts is easy to expand.
Furthermore, the first catalyst pouring layer is formed by pouring a first catalyst and a first adsorption gel in a mixing way, the second catalyst pouring layer is formed by mixing and pouring a second catalyst and a second adsorption gel, the first catalyst pouring layer and the second catalyst pouring layer are respectively formed by grouting into the first grouting through hole and the second grouting through hole, the outer arched porous carrier and the inner arched porous carrier are sleeved and distributed, the first catalyst pouring layer and the second catalyst pouring layer which are respectively poured in the outer arched porous carrier and the inner arched porous carrier are distributed in an internal-external staggered way, on the premise that a reactant conduction gap is reserved, the fact that the reactant can flow through the first catalyst pouring layer and the second catalyst pouring layer which are distributed inside and outside in the conduction process can be guaranteed to a certain extent, and the distribution distance between the inside and the outside can be set according to the actual best conduction condition.
Furthermore, the packaging plate comprises a packaging bottom plate positioned at the bottom end face of the outer arched porous carrier, the two sides of the upper end of the packaging bottom plate are fixedly connected with packaging side plates, the two packaging side plates are fixedly connected with the end faces of the two sides of the outer arched porous carrier, and the air guide pipe is communicated with the bottom end part of the packaging bottom plate, so that the interiors of the inner arched porous carrier and the outer arched porous carrier are in a closed state, reactants can be led out only from the upper end face of the outer arched porous carrier, and the reaction area is effectively enlarged.
Furthermore, the distribution diffusion carrier channel comprises a lower channel fixedly connected to the top end of the reactant inlet, a flow guide cavity is formed in the lower channel, an upper cover plate hermetically connected with the upper end of the lower channel is arranged at the upper end of the lower channel, and the two air guide tubes are respectively distributed at the top ends of the left end and the right end of the lower channel.
Furthermore, the bottom fixedly connected with of upper cover plate inlays and establishes the board, the bottom portion of lower passageway is seted up and is inlayed the groove of establishing corresponding with inlaying the board position, sets up to upper and lower reassembling type, and easy technical staff carries out dismouting and change to catalyst load layer.
Furthermore, the catalyst loading layer comprises a fiber framework layer fixedly connected in the flow guide cavity, a third catalyst is fixedly bonded on the upper end face and the lower end face of the fiber framework layer through bonding layers, a reactant is led into the distribution diffusion carrier channel through a reactant inlet and contacts with the catalyst loading layer in the circulating process, the bonding layers on the catalyst loading layer and the fiber framework layer adsorb harmful impurities in the reactant, and the adsorbed impurities can be contacted with the third catalyst sufficiently to be catalytically reacted.
Further, the third catalyst is including the globular utricule of adhesion on the tie coat, the inside injection packing of globular utricule has, be equipped with a plurality of fibrous villi that extend to its inside on the lateral wall of globular utricule, for liquid catalyst, in the use, can slowly outwards permeate and can the uniform part on the fibre skeleton layer along with fibrous villi, effectively enlarge the distribution area of fibrous villi, adopt the slow release mode simultaneously, easily improve catalyzed ageing.
A method for making a high surface area catalyst porous ceramic support comprising the steps of:
s1, firstly, a technician places raw materials of the porous ceramic carrier in a polymerization float to carry out high-temperature reaction, simultaneously, a proper amount of cellulose can be put in, the cellulose forms a stable system after polymerization, a fiber aggregate can be formed in the porous ceramic carrier, and then the porous ceramic carrier is sintered to form an arched bridge-shaped outer arched porous carrier and an arched inner porous carrier;
s2, opening holes in the outer arched porous carrier and the inner arched porous carrier to obtain a first grouting through hole and a second grouting through hole, respectively pouring a first catalyst pouring layer and a second catalyst pouring layer into the first grouting through hole and the second grouting through hole to obtain a carrier material with a porous and arched structure, internally and externally sleeving and packaging the outer arched porous carrier and the inner arched porous carrier and connecting the outer arched porous carrier and the inner arched porous carrier with a distribution diffusion carrier channel, installing a plurality of catalyst loading layers distributed in different specifications in the distribution diffusion carrier channel in advance by a technician, and respectively communicating air guide pipes at two sides of the upper end of the distribution diffusion carrier channel with the bottom end of the porous carrier to complete the splicing of the whole porous ceramic carrier.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme is that the outer arched porous carrier and the inner arched porous carrier are sintered into an arched structure, the first catalyst pouring layer and the second catalyst pouring layer are distributed in the outer arched porous carrier and the inner arched porous carrier in a staggered mode, the reaction area of a reactant contacting with the catalyst is easy to enlarge, meanwhile, on the premise that a reactant conduction gap is reserved, the reactant can be guaranteed to flow through the first catalyst pouring layer and the second catalyst pouring layer which are distributed inside and outside in the conduction process to a certain extent, the catalyst and adsorption gel are used for slip casting forming, impurities in the reactant are captured and adsorbed by the adsorption gel to provide a contact reaction space for the catalyst, in addition, a plurality of catalyst loading layers are arranged in a distribution diffusion carrier channel, the catalyst loading layers also achieve catalytic reaction after adsorption of the impurities in the reactant, and gaps are reserved among the plurality of catalyst loading layers, effectively avoiding the blockage of the reactant.
(2) The outer arched porous carrier and the inner arched porous carrier are both porous ceramic carriers, the porous ceramic carriers are prepared by mixing and sintering ceramic fibers, pore-forming agents and biochar, the pore-forming agents include but are not limited to one or more of ammonium bicarbonate, calcium carbonate and sodium selenite, the pore-forming agents are added into raw materials, gases such as carbon dioxide and the like are released by heating, the generated gases overflow from the raw materials to generate a pore structure, and meanwhile, the outer arched porous carriers and the inner arched porous carriers are both arched structures, so that the contact reaction area of reactants and a catalyst is easy to expand.
(3) The first catalyst pouring layer is formed by pouring a first catalyst and a first adsorption gel in a mixed mode, the second catalyst pouring layer is formed by pouring a second catalyst and a second adsorption gel in a mixed mode, the first catalyst pouring layer and the second catalyst pouring layer are respectively poured into the first grouting through hole and the second grouting through hole for forming in a grouting mode, the outer arch-shaped porous carrier and the inner arch-shaped porous carrier are sleeved and distributed, meanwhile, the first catalyst pouring layer and the second catalyst pouring layer which are respectively poured into the outer arch-shaped porous carrier and the inner arch-shaped porous carrier are distributed in an internally-externally staggered mode, on the premise that a reactant conduction gap is reserved, the reactant can also be guaranteed to flow through the first catalyst pouring layer and the second catalyst pouring layer which are distributed internally and externally in a conduction process, and the internal and external distribution intervals can be set according to the actual best conduction condition.
(4) The catalyst loading layer comprises a fiber framework layer fixedly connected in the flow guide cavity, a third catalyst is fixedly bonded on the upper end face and the lower end face of the fiber framework layer through bonding layers, a reactant is led into the distribution diffusion carrier channel through a reactant inlet and contacts with the catalyst loading layer in the circulating process, the bonding layers on the catalyst loading layer and the fiber framework layer adsorb harmful impurities in the reactant, and the adsorbed impurities can be contacted with the third catalyst sufficiently to be catalyzed.
(5) The third catalyst is including the globular utricule of adhesion on the tie coat, and the inside injection of globular utricule is filled has, is equipped with a plurality of fibre fine hair that extend to its inside on the lateral wall of globular utricule, for liquid catalyst, in the use, can slowly outwards permeate and can the uniform part on fibre skeleton layer along with fibre fine hair, effectively enlarges the distribution area of fibre fine hair, adopts the slow release mode simultaneously, easily improves catalyzed ageing nature.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an internal cross-sectional view of the present invention;
FIG. 3 is a perspective view of the outer arch-shaped porous carrier and the inner arch-shaped porous carrier of the present invention before casting;
FIG. 4 is a schematic structural view of the outer arch-shaped porous carrier and the inner arch-shaped porous carrier of the present invention after casting;
FIG. 5 is a perspective view of the package plate of the present invention;
FIG. 6 is a perspective view of the present invention at the location of the distributed diffusion carrier channels;
FIG. 7 is an exploded view of the distributed diffusion carrier of the present invention at the channel;
fig. 8 is a perspective view at the catalyst support layer of the present invention;
fig. 9 is an internal sectional view of a third catalyst site of the present invention.
The reference numbers in the figures illustrate:
1 distributed diffusion carrier channel, 101 lower channel, 102 upper cover plate, 103 gas guide tube, 104 embedded plate, 2 reactant inlet, 3 outer arch-shaped porous carrier, 301 first grouting through hole, 4 inner arch-shaped porous carrier, 401 second grouting through hole, 5 arch-shaped bearing plate, 6 first catalyst pouring layer, 601 first catalyst, 602 first adsorption gel, 7 second catalyst pouring layer, 701 second catalyst, 702 second adsorption gel, 8 catalyst loading layer, 801 fiber skeleton layer, 802 third catalyst, 8021 spherical capsule, 8022 liquid catalyst, 8023 fiber fluff, 803 bonding layer, 9 packaging plate, 901 packaging bottom plate, 902 packaging side plate.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a catalyst porous ceramic carrier with high surface area comprises a reactant inlet 2 fixedly connected to the bottom end of a distribution diffusion carrier channel 1, both sides of the upper end of the distribution diffusion carrier channel 1 are fixedly connected with outer arched porous carriers 3 through arched bearing plates 5, both the distribution diffusion carrier channel 1 and the reactant inlet 2 adopt an arched structure, the reactant flows through the distribution diffusion carrier channel 1 and is easy to move in a distribution manner at the left and right ends, inner arched porous carriers 4 with packing plates 9 are arranged inside the two outer arched porous carriers 3, and the left and right ends of the distribution diffusion carrier channel 1 are respectively communicated with the inner bottoms of the two packing plates 9 through gas guide tubes 103.
The outer arched porous carrier 3 and the inner arched porous carrier 4 are both porous ceramic carriers, the porous ceramic carriers are prepared by mixing and sintering ceramic fibers, pore-forming agents and biochar, the pore-forming agents include but are not limited to one or more of ammonium bicarbonate, calcium carbonate and sodium selenite, the pore-forming agents are added into raw materials, gases such as carbon dioxide and the like are released by heating, the generated gases overflow from the raw materials to generate a pore structure, and meanwhile, the outer arched porous carrier 3 and the inner arched porous carrier 4 are both arched structures, so that the contact reaction area of reactants and catalysts is easy to expand.
Referring to fig. 2-4, a first grouting through hole 301 and a second grouting through hole 401 are respectively formed in the inner portion of the outer arched porous carrier 3 and the inner arched porous carrier 4 along the axial direction thereof, a first catalyst casting layer 6 and a second catalyst casting layer 7 are respectively cast in the first grouting through hole 301 and the second grouting through hole 401, the first catalyst casting layer 6 and the second catalyst casting layer 7 are arranged in an inner-outer staggered manner, the first catalyst casting layer 6 is formed by mixing and casting a first catalyst 601 and a first adsorption gel 602, the second catalyst casting layer 7 is formed by mixing and casting a second catalyst 701 and a second adsorption gel 702, the first catalyst 601 and the second catalyst 701 are solid catalysts, technicians can select the types of the catalysts according to the processed reactants, and the first catalyst casting layer 6 and the second catalyst casting layer 7 are respectively poured into the first grouting through hole 301, the second grouting through hole 401, The second grouting through holes 401 are grouted and formed, the outer arched porous carrier 3 and the inner arched porous carrier 4 are sleeved with the inner arched porous carrier 3 and the outer arched porous carrier 4 and distributed, the first catalyst pouring layer 6 and the second catalyst pouring layer 7 which are respectively poured in the outer arched porous carrier 3 and the inner arched porous carrier 4 are distributed in an inner-outer staggered mode, on the premise that a reactant conduction gap is reserved, the reactant can be guaranteed to flow through the first catalyst pouring layer 6 and the second catalyst pouring layer 7 which are distributed in the inner-outer mode in the conduction process to a certain extent, and the inner-outer distribution distance can be set according to the actual best conduction condition.
Referring to fig. 1 and fig. 5, in addition, the package plate 9 includes a package bottom plate 901 located at the bottom end surface of the outer arched porous carrier 3, two sides of the upper end of the package bottom plate 901 are both fixedly connected with package side plates 902, the two package side plates 902 are fixedly connected to the end surfaces of the two sides of the outer arched porous carrier 3, and the gas-guide tube 103 is communicated with the bottom end portion of the package bottom plate 901, so as to realize that the interiors of the inner arched porous carrier 4 and the outer arched porous carrier 3 are in a closed state, so that reactants can only be led out from the upper end surface of the outer arched porous carrier 3, and effectively expand the reaction area.
Referring to fig. 2 and fig. 6-7, a plurality of catalyst loading layers 8 are disposed on both sides of the inside of the distribution diffusion carrier channel 1, the plurality of catalyst loading layers 8 are not regularly distributed in the inside of the carrier channel 1, and a plurality of catalyst load layers 8 will distribute 1 internal partitioning of diffusion carrier passageway and become a plurality of space water conservancy diversion chambeies, it includes lower passageway 101 of fixed connection on 2 tops of reactant entry to distribute diffusion carrier passageway 1, the water conservancy diversion cavity has been seted up to the inside of lower passageway 101, the upper end of lower passageway 101 is equipped with rather than the upper cover plate 102 of inside sealed linking, two air ducts 103 distribute respectively in both ends top position about lower passageway 101, the bottom fixedly connected with of upper cover plate 102 inlays establishes board 104, the bottom portion of lower passageway 101 is seted up and is established the corresponding groove of establishing of inlaying of board 104 position, the reassembling type about setting, easy technical staff carries out dismouting and change to catalyst load layer 8.
Referring to fig. 8-9, specifically, the catalyst supporting layer 8 includes a fiber framework layer 801 fixedly connected in the flow guiding cavity, the upper and lower end surfaces of the fiber framework layer 801 are fixedly bonded with a third catalyst 8012 through adhesive layers 803, a reactant is introduced into the distribution diffusion carrier channel 1 through the reactant inlet 2 and contacts with the catalyst supporting layer 8 in the flowing process, the adhesive layers 803 and the fiber framework layer 801 on the catalyst supporting layer 8 adsorb harmful impurities in the reactant, and the adsorbed impurities can contact with the third catalyst 8012 enough to be catalytically reacted.
The third catalyst 8012 includes a spherical capsule 8021 adhered to the adhesive layer 803, the spherical capsule 8021 is filled with 8022 by injection, the outer side wall of the spherical capsule 8021 is provided with a plurality of fiber fluff 8023 extending to the inside thereof, the 8022 is a liquid catalyst, and in the using process, the liquid catalyst slowly permeates outwards along with the fiber fluff 8023 and can be uniformly distributed on the fiber skeleton layer 801, so that the distribution area of the fiber fluff 8023 is effectively enlarged, and meanwhile, a slow release mode is adopted, so that the catalytic timeliness is easily improved.
A method for making a high surface area catalyst porous ceramic support comprising the steps of:
s1, firstly, a technician places raw materials of the porous ceramic carrier in a polymerization float to carry out high-temperature reaction, simultaneously, a proper amount of cellulose can be put in, the cellulose forms a stable system after polymerization, a fiber aggregate can be formed in the porous ceramic carrier, and then the porous ceramic carrier is sintered to form an arched bridge-shaped outer arched porous carrier 3 and an arched inner porous carrier 4;
s2, opening the outer arched porous carrier 3 and the inner arched porous carrier 4 to obtain a first grouting through hole 301 and a second grouting through hole 401, respectively pouring a first catalyst pouring layer 6 and a second catalyst pouring layer 7 into the first grouting through hole 301 and the second grouting through hole 401 to obtain a carrier material with a porous and arched structure, internally and externally sleeving and packaging the outer arched porous carrier 3 and the inner arched porous carrier 4 and connecting the outer arched porous carrier and the inner arched porous carrier with the distribution diffusion carrier channel 1, installing a plurality of catalyst loading layers 8 distributed in different specifications in the distribution diffusion carrier channel 1 in advance by technicians, and respectively communicating the gas guide pipes 103 on two sides of the upper end of the distribution diffusion carrier channel 1 with the bottom end of the porous carrier to complete the splicing of the whole porous ceramic carrier.
The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. A high surface area catalyst porous ceramic support comprising distributed diffusion support channels (1) and reactant inlets (2) fixedly connected to the bottom ends of the distributed diffusion support channels (1), characterized in that: the two sides of the upper end of the distributed diffusion carrier channel (1) are fixedly connected with outer arched porous carriers (3) through arched supporting plates (5), inner arched porous carriers (4) with packaging plates (9) are arranged inside the two outer arched porous carriers (3), the left end and the right end of the distributed diffusion carrier channel (1) are respectively communicated with the inner bottoms of the two packaging plates (9) through air guide pipes (103), first grouting through holes (301) and second grouting through holes (401) are respectively arranged inside the outer arched porous carriers (3) and the inner arched porous carriers (4) along the axis direction of the carriers, first catalyst pouring layers (6) and second catalyst pouring layers (7) are respectively poured in the first grouting through holes (301) and the second grouting through holes (401), and the first catalyst pouring layers (6) and the second catalyst pouring layers (7) are arranged in an inner-outer staggered manner, the inside both sides of distribution diffusion carrier passageway (1) all are equipped with a plurality of catalyst load layers (8), and are a plurality of catalyst load layer (8) non-specification distribution is in the inside of carrier passageway (1), and a plurality of catalyst load layers (8) will distribute diffusion carrier passageway (1) internal partitioning and become a plurality of gaps water conservancy diversion chambeies.
2. A high surface area catalyst porous ceramic support according to claim 1, wherein: the outer arched porous carrier (3) and the inner arched porous carrier (4) are both porous ceramic carriers, the porous ceramic carriers are prepared by mixing and sintering ceramic fibers, pore-forming agents and biological carbon, and the pore-forming agents include but are not limited to one or more of ammonium bicarbonate, calcium carbonate and sodium selenite.
3. A high surface area catalyst porous ceramic support according to claim 1, wherein: the first catalyst pouring layer (6) is formed by mixing and pouring a first catalyst (601) and a first adsorption gel (602), the second catalyst pouring layer (7) is formed by mixing and pouring a second catalyst (701) and a second adsorption gel (702), and the first catalyst pouring layer (6) and the second catalyst pouring layer (7) are respectively formed by injecting slurry into the first grouting through hole (301) and the second grouting through hole (401).
4. A high surface area catalyst porous ceramic support according to claim 1, wherein: the packaging plate (9) comprises a packaging bottom plate (901) located on the bottom end face of the outer arched porous carrier (3), packaging side plates (902) are fixedly connected to two sides of the upper end of the packaging bottom plate (901), the two packaging side plates (902) are fixedly connected to end faces of two sides of the outer arched porous carrier (3), and the air guide pipe (103) is communicated with the bottom end portion of the packaging bottom plate (901).
5. A high surface area catalyst porous ceramic support according to claim 1, wherein: the distribution diffusion carrier channel (1) comprises a lower channel (101) fixedly connected to the top end of the reactant inlet (2), a flow guide cavity is formed in the lower channel (101), an upper cover plate (102) hermetically connected with the inner portion of the lower channel (101) is arranged at the upper end of the lower channel (101), and the two air guide tubes (103) are respectively distributed at the top ends of the left end and the right end of the lower channel (101).
6. The high surface area catalyst porous ceramic support of claim 5, wherein: the bottom end of the upper cover plate (102) is fixedly connected with an embedded plate (104), and the bottom end part of the lower channel (101) is provided with an embedded groove corresponding to the embedded plate (104).
7. The high surface area catalyst porous ceramic support of claim 6, wherein: the catalyst loading layer (8) comprises a fiber framework layer (801) fixedly connected in the flow guide cavity, and third catalysts (8012) are fixedly bonded on the upper end face and the lower end face of the fiber framework layer (801) through bonding layers (803).
8. The high surface area catalyst porous ceramic support of claim 7, wherein: the third catalyst (8012) comprises a spherical capsule body (8021) adhered to the bonding layer (803), wherein the spherical capsule body (8021) is filled with (8022) by injection, and a plurality of fiber fluff (8023) extending to the inside of the spherical capsule body (8021) are arranged on the outer side wall of the spherical capsule body.
9. The method of manufacturing a high surface area catalyst porous ceramic support according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, firstly, a technician places raw materials of the porous ceramic carrier in a polymerization float to carry out high-temperature reaction, simultaneously, a proper amount of cellulose can be put in, the cellulose forms a stable system after polymerization, a fiber aggregate can be formed in the porous ceramic carrier, and then the porous ceramic carrier is sintered to form an arched bridge-shaped outer arched porous carrier (3) and an arched inner arched porous carrier (4);
s2, opening the outer arched porous carrier (3) and the inner arched porous carrier (4) to obtain a first grouting through hole (301) and a second grouting through hole (401), and respectively pouring a first catalyst pouring layer (6) and a second catalyst pouring layer (7) into the first grouting through hole (301) and the second grouting through hole (401) to obtain a carrier material with a porous and arched structure, internally and externally sleeving and packaging the outer arched porous carrier (3) and the inner arched porous carrier (4) and connecting the outer arched porous carrier and the inner arched porous carrier with the distribution diffusion carrier channel (1), installing a plurality of catalyst loading layers (8) distributed in different specifications in the distribution diffusion carrier channel (1) in advance by technicians, and respectively communicating the air ducts (103) at two sides of the upper end of the distribution diffusion carrier channel (1) with the bottom end part of the porous carrier to complete the splicing of the whole porous ceramic carrier.
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