阅读说明：本技术 一种高表面积的催化剂多孔陶瓷载体 (Catalyst porous ceramic carrier with high surface area ) 是由 朱岳军 于 2020-05-07 设计创作，主要内容包括：本发明公开了一种高表面积的催化剂多孔陶瓷载体,属于催化剂载体技术领域,通过将外拱形多孔载体和内拱形多孔载体烧结成拱形结构,在外拱形多孔载体和内拱形多孔载体内交错分布第一催化剂浇筑层和第二催化剂浇筑层,采用催化剂与吸附凝胶注浆成型,易于捕捉反应物中的杂质,为催化剂提供接触反应空间,扩大反应物与催化剂接触的反应面积,同时在留有反应物导通空隙的前提下,也能够保障反应物在导通过程中能够流经内外分布的第一催化剂浇筑层和第二催化剂浇筑层处,此外,在分布扩散载体通道内设置多个催化剂负载层,催化剂负载层同样实现对反应物中的杂质进行吸附后催化反应,且多个催化剂负载层之间具有空隙,有效避免反应物导通堵塞。(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.)

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.

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

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.