CN104043314B - A kind of mesopore molecular sieve coating processes - Google Patents
A kind of mesopore molecular sieve coating processes Download PDFInfo
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- CN104043314B CN104043314B CN201410270246.0A CN201410270246A CN104043314B CN 104043314 B CN104043314 B CN 104043314B CN 201410270246 A CN201410270246 A CN 201410270246A CN 104043314 B CN104043314 B CN 104043314B
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Abstract
The present invention's a kind of mesopore molecular sieve coating processes and molecular sieve adsorber relate to a kind of coating processes for the field such as environmental protection industry (epi) and chemical catalysis and a kind of adsorption plant.Object is that a kind of process is simple, molecular sieve utilization rate is high in order to provide, gas and the low mesopore molecular sieve coating processes of molecular sieve desorption conditions and the molecular sieve adsorber by this explained hereafter after reaction.Coating processes in the present invention comprises the following steps: be sprayed at uniformly on sponge by binding agent, repeatedly rolls sponge with the roller of manual gluing; Base material is laid on work top, compresses and smear with roller; Mesopore molecular sieve is placed in coating box, 40 ~ 100 DEG C is heated to mesopore molecular sieve and stirs, keeping 5 ~ 10 minutes; By coating box, mesopore molecular sieve powder is evenly laid on base material, forms molecular sieve conversion zone; Coated base material is placed in vacuum drying chamber and takes out after a period of time; Repeat step above-mentioned by base material another side coating mesopore molecular sieve powder.
Description
Technical field
The present invention relates to a kind of coating processes, particularly relate to a kind of mesopore molecular sieve coating processes for the field such as environmental protection industry (epi) and chemical catalysis.
Background technology
Meso-porous molecular sieve material has the excellent specific property that other porous material does not have: the pore passage structure with high-sequential; The single distribution in aperture, and aperture size can change at relative broad range; Mesoporous various shapes, hole wall composition and character controllable; High thermal stability and hydrothermal stability can be obtained by optimum synthesis condition.Its tempting part is also its potential using value in many fields such as catalysis, absorption, separation and optical, electrical, magnetic.Traditional processing mode is particle molecular sieve processing being sintered into diameter 3 ~ 5mm diameter, its shortcoming is that the molecular sieve of granular center is difficult to contact with the gas that will react or will adsorb, thus greatly reduce the utilization rate of molecular sieve, even if the small part molecular sieve that has at center contacts with the gas of process, the new gas of follow-up desorption or generation to be also difficult to from particle desorption out.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of process is simple, molecular sieve utilization rate is high, gas and the low a kind of mesopore molecular sieve coating processes of molecular sieve desorption conditions after reaction.
A kind of mesopore molecular sieve coating processes of the present invention, comprises the following steps:
(1) binding agent adds: be sprayed at uniformly on sponge by binding agent, repeatedly roll sponge with the roller of manual gluing;
(2) base material is fixed: be laid in by base material on work top, and two compresses, and repeatedly smears on base material with roller;
(3) powder heating: be that the hydrophobic mesopore molecular sieve powder of 80-120um is placed in coating box by diameter, 40 ~ 100 DEG C be heated to mesopore molecular sieve and stir, keeping 5 ~ 10 minutes;
(4) powder coated: by coating box, mesopore molecular sieve powder is evenly laid on base material, base material is formed cellular molecular sieve conversion zone;
(5) overall oven dry: coated base material is placed after placing a period of time in vacuum drying chamber and take out;
(6) reverse side coating: repeat step (1), to (5), base material another side has been applied mesopore molecular sieve powder.
A kind of mesopore molecular sieve coating processes of the present invention, wherein binding agent is high-temp glue.
A kind of mesopore molecular sieve coating processes of the present invention, during wherein said binding agent spraying, humidity remains 60%.
A kind of mesopore molecular sieve coating processes of the present invention, wherein said base material thickness is 0.1 ~ 0.2mm, and the selection of material is can the ceramic fiber paper of resistance to 1000 DEG C of high temperature.
A kind of mesopore molecular sieve coating processes of the present invention, wherein said meso-porous molecular sieve material is hydrophobic nano level zeolite powder.
A kind of mesopore molecular sieve coating processes of the present invention, the thickness of wherein said molecular sieve conversion zone is 0.1mm.
A kind of mesopore molecular sieve coating processes of the present invention, the temperature in wherein said drying box is set as 80 DEG C, and drying time is 1 ~ 3 hour.
A kind of molecular sieve adsorber of the present invention, comprise conversion zone and base material, described conversion zone is fixed on the upper and lower both sides of base material by bonding agent, and conversion zone forms by meso-porous molecular sieve material is bonding.
A kind of molecular sieve adsorber of the present invention, wherein said base material is the exotic materials such as the ceramic fibre of thickness 0.1 ~ 0.2mm.
A kind of molecular sieve adsorber of the present invention, the thickness of wherein said conversion zone is 0.1mm.
A kind of mesopore molecular sieve of the present invention coating processes difference from prior art is that a kind of mesopore molecular sieve coating processes of the present invention first rolls the binding agent be sprayed on sponge with roller, again binding agent is applied on base material, make binding agent on base material, one deck mucous membrane can be formed uniformly, be convenient to the adhesion of meso-porous molecular sieve material, avoid piling up because of meso-porous molecular sieve material affecting molecular sieve utilization rate.Mesopore molecular sieve of the present invention adopts hydrophobic material, and effectively can avoid the interference of moisture during use, Preferential adsorption needs adsorb macromolecules organic matter, improves the adsorption efficiency of mesopore molecular sieve.Self relative humidity of general molecular screen material is comparatively large, affects adsorption effect.Be coated in after meso-porous molecular sieve material heating is stirred into powder on the base material that thickness is 0.1 ~ 0.2mm, form cellular molecular sieve conversion zone, improve the utilization rate of mesopore molecular sieve, avoid the situation that the molecular sieve being positioned at inside when traditional meso-porous molecular sieve material uses is difficult to contact with reactant, the adsorption rate of the molecular sieve that general zeolitic material makes is up to 90%, and the effective adsorption rate of mesopore molecular sieve of the present invention reaches 99%.The cellular molecular sieve conversion zone of 0.1mm thickness be also easy to will desorption air release out, thus reduce the condition of reacted gas and molecular sieve desorption, the desorption temperature of general molecular screen material is even higher at 260 DEG C, and the desorption temperature of mesopore molecular sieve of the present invention is 230 DEG C.
Below in conjunction with accompanying drawing, a kind of mesopore molecular sieve coating processes of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the process chart of a kind of mesopore molecular sieve coating processes of the present invention;
Fig. 2 is the structural representation of a kind of molecular sieve adsorber in the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of mesopore molecular sieve coating processes of the present invention comprises the following steps:
(1) binding agent 3 adds: be sprayed at uniformly on sponge by binding agent 3, and high-temp glue selected by binding agent 3, repeatedly rolls sponge, and humidity is remained on 60% with the roller of manual gluing, ensures roller evenly speckles with binding agent 3;
(2) base material 1 is fixed: be laid on work top by base material 1, two compresses, prevent adhesion in gluing process from tearing the fold caused, repeatedly smear on base material 1 with roller, power keeps evenly as far as possible, base material 1 selects thickness to be the high temperature resistant of 0.1 ~ 0.2mm and the material be easily combined with meso-porous molecular sieve material, and selecting in the present embodiment can the ceramic fiber paper of resistance to 1000 DEG C;
(3) powder heating: meso-porous molecular sieve material is placed in coating box, meso-porous molecular sieve material selects diameter to be the hydrophobic nano level zeolite powder of 80-120um, because zeolite powder exposes in atmosphere for a long time, may adsorbing contaminant and the glomerate phenomenon of caking caused, therefore 40 ~ 100 DEG C be heated to zeolite powder and stir, keeping 5 ~ 10 minutes;
(4) powder coated: by coating box, mesopore molecular sieve powder is evenly laid on base material 1, base material 1 is formed the cellular molecular sieve conversion zone 2 that thickness is 0.1mm;
(5) overall oven dry: be placed on by coated base material 1 in vacuum drying chamber and take out after 1 ~ 3 hour, drying box temperature is set as 80 DEG C;
(6) reverse side coating: repeat step (1) to (5) and base material 1 another side has been applied mesopore molecular sieve powder.
As shown in Figure 2, a kind of molecular sieve adsorber of the present invention comprises conversion zone 2 and base material 1, and base material 1 is the exotic materials such as the ceramic fibre of thickness 0.1 ~ 0.2mm.Conversion zone 2 is fixed on base material about 1 both sides by binding agent 3, and conversion zone 2 forms by meso-porous molecular sieve material is bonding, and thickness is 0.1mm.
The operation principle of the present invention's a kind of mesopore molecular sieve coating processes and molecular sieve adsorber is as follows: under room temperature environment, be attached on the flabellum of runner by several molecular sieve adsorbers, the gas containing large molecule incendivity volatile organic matter blows to runner from the side being parallel to runner rotating shaft.Drive runner, molecular sieve adsorber starts along axis of rotation and adsorbs larger molecular organics.After adsorption process terminates, purging desorption is carried out with adding hot-air under molecular sieve adsorber being placed in the environment of 230 DEG C, the larger molecular organics adsorbed in adsorption process is taken away with the air-flow purged, cool to room temperature afterwards, mesopore molecular sieve on molecular sieve adsorber returns to original state, can re-start adsorption process.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (7)
1. a mesopore molecular sieve coating processes, is characterized in that comprising the following steps:
(1) binding agent adds: be sprayed at uniformly on sponge by binding agent, repeatedly roll sponge with the roller of manual gluing;
(2) base material is fixed: be laid in by base material on work top, and two compresses, and repeatedly smears on base material with roller;
(3) powder heating: be that the hydrophobic mesopore molecular sieve powder of 80-120um is placed in coating box by diameter, 40 ~ 100 DEG C be heated to mesopore molecular sieve and stir, keeping 5 ~ 10 minutes;
(4) powder coated: by coating box, mesopore molecular sieve powder is evenly laid on base material, base material is formed cellular molecular sieve conversion zone;
(5) overall oven dry: coated base material is placed after placing a period of time in vacuum drying chamber and take out;
(6) reverse side coating: repeat step (1), to (5), base material another side has been applied mesopore molecular sieve powder.
2. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: described binding agent is high-temp glue.
3. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: during described binding agent spraying, humidity remains 60%.
4. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: described base material thickness is 0.1 ~ 0.2mm, and the selection of material is can the ceramic fiber paper of resistance to 1000 DEG C of high temperature.
5. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: described meso-porous molecular sieve material is hydrophobic nano level zeolite powder.
6. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: the thickness of described molecular sieve conversion zone is 0.1mm.
7. a kind of mesopore molecular sieve coating processes according to claim 1, is characterized in that: the temperature in described drying box is set as 80 DEG C, and drying time is 1 ~ 3 hour.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156829A (en) * | 1990-01-25 | 1992-10-20 | Mobil Oil Corporation | Method for stabilizing synthetic mesoporous crystalline material |
| CN1167005A (en) * | 1996-06-05 | 1997-12-10 | 中国石油化工总公司 | SAPO-34/ceramic composite separation film and preparation thereof |
| CN103157434A (en) * | 2013-01-18 | 2013-06-19 | 北京艾康空气处理系统有限公司 | High-efficient low-resistance molding air purification material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090126570A1 (en) * | 2007-11-15 | 2009-05-21 | Chunqing Liu | Polymer Functionalized Molecular Sieve/Polymer Mixed Matrix Membranes |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156829A (en) * | 1990-01-25 | 1992-10-20 | Mobil Oil Corporation | Method for stabilizing synthetic mesoporous crystalline material |
| CN1167005A (en) * | 1996-06-05 | 1997-12-10 | 中国石油化工总公司 | SAPO-34/ceramic composite separation film and preparation thereof |
| CN103157434A (en) * | 2013-01-18 | 2013-06-19 | 北京艾康空气处理系统有限公司 | High-efficient low-resistance molding air purification material and preparation method thereof |
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