CN102513162B - Catalyst web nest support protective agent and manufacturing method thereof - Google Patents
Catalyst web nest support protective agent and manufacturing method thereof Download PDFInfo
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- CN102513162B CN102513162B CN201110329205.0A CN201110329205A CN102513162B CN 102513162 B CN102513162 B CN 102513162B CN 201110329205 A CN201110329205 A CN 201110329205A CN 102513162 B CN102513162 B CN 102513162B
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- protective agent
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Abstract
The invention discloses a catalyst web nest support protective agent for supporting and protecting various fixed bed catalysts used in the fields of oil refining, chemical industry, gas treatment and environmental protection, etc. The catalyst web nest support protective agent having a structural shape of tooth cylinder (2) which is besprinkled with straight-through meshes (1) is manufactured by using nonmetallic minerals as raw materials, carrying out technologically proportioning, crushing, and mud making, carrying out extrusion molding through a mold in a hydraulic press, drying, and then sintering at the temperature of 1350-1650 DEG C. The catalyst web nest support protective agent has the following physical properties that the bulk density is 600-1000kg/m<3>, the specific surface areas respectively are 500-1600 m<2>/m<3> according to the mesh aperture sizes, the void fraction is 70-80 %, the compressive strength is no less than 400 N per particle, and the heat resistance temperature is no less than 1200 DEG C. The catalyst web nest support protective agent has huge specific surface area and voids fraction, extremely high mass transfer, and low pressure drop of bed, and can greatly raise the utilization efficiency of the catalyst and devices.
Description
Technical field
The present invention relates to a kind of catalyst net nest support protective agent and preparation method thereof, for refining oil, the various catalytic reactors that use of the industry such as chemical industry, gas treatment and environmental protection, belong to protection and the support product field of fixed bde catalyst in solid catalyst product.
Background technology
At present, in the shape of the existing catalyst support protective agent of the industries such as oil refining, chemical industry, gas treatment and environmental protection, there are spherical, Raschig ring, hollow impeller, porous ball, porous circular cylinder, honeycomb cylinder and rectangular cylinder etc.Their major defect is 1) specific area is little, and gas-liquid mass transfer efficiency is low; 2) voidage is low, and bed resistance is large; 3) vapor-liquid separation cut point is few, and the dispersiveness of convection cell is low.Above-mentioned shortcoming has greatly affected the service efficiency of catalyst and device.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of catalyst net nest support protective agent and preparation method thereof.Can realize the specific area and the voidage that improve proppant, reduce bed pressure drop, increase vapor-liquid separation cut point, improve the dispersiveness of fluid, and can adsorb the dirt producing in the equipment such as the impurity particle that catches in material and heat exchanger and heating furnace, thereby improve the service efficiency of catalyst and device.
For reaching described object, technical scheme of the present invention is:
, it is characterized in that: the planform of catalyst net nest support protective agent is the profile of tooth cylinder with being covered with straight-through mesh; Physical property is: bulk density 600～1000kg/m
3, specific area is respectively 500～1600m according to mesh aperture size
2/ m
3, voidage is 70～80%, compression strength>=400N/, heat resisting temperature>=1200 ℃; Catalyst net nest support protective agent adopts nonmetallic ore raw material, through technical recipe, pulverizing, mud processed, in hydraulic press through special mould extrusion molding, be dried after, within 2～3 hours under 1350～1650 ℃ of high temperature, burn till.
The manufacture method of catalyst net nest support protective agent, is characterized in that:
(1), by raw mineral materials by weight proportion: alumina powder 5～90%, mullite powder 2～15%, kaolin 5～90%, prepares;
(2) carboxymethyl cellulose binder that, adds compound weight 3～5%, through ball milling, mix 15～20 hours, be crushed to 250 mesh sieves, add lubricant, releasing agent is mediated in kneader with water and within 1～3 hour, is become pug, at indoor old 3～7 days of 20～30 ℃ of temperature, relative humidity 50～90%, puts into vacuum deairing machine and carries out after degassed pugging, put into hydraulic press through special mould extrusion molding, make planform for the profile of tooth cylinder base substrate with being covered with straight-through mesh;
(3), profile of tooth cylinder base substrate is first put 1～2 day at indoor the moon of 20～30 ℃ of temperature, relative humidity 50～90%, then in temperature is the drying room of 150～200 ℃, be dried to moisture and be less than 5%;
(4), repaired biscuit, be finally placed in kiln, within 2～3 hours under 1350～1650 ℃ of high temperature, burn till.
The invention has the beneficial effects as follows: the catalyst net nest support protective agent that adopts unique formula and technique to make; there is huge specific area and voidage; mass-transfer efficiency is high; bed pressure drop is little; landfill proportion is little, and unique net nest structure, makes gas-liquid separation cut point many; and can adsorption filtration material and process equipment in the dirt and the impurity particle that produce, can greatly improve the service efficiency of catalyst and device.
Accompanying drawing explanation
Fig. 1 shows the plan structure schematic diagram of catalyst net nest support protective agent;
Fig. 2 shows the partial cutaway plan structure schematic diagram of catalyst net nest support protective agent;
In figure, 1, mesh, 2, profile of tooth cylinder.
Specific embodiment formula
Below provide three different al
2o
3the embodiment of content and mesh aperture, has illustrated respectively catalyst net nest support protective agent and the corresponding physical property by foregoing invention, prepared.
Embodiment mono-: by the chemical composition of material prescription, be: Al
2o
330%, SiO
265%, CaO+MgO1～5%, K
2o+Na
2o1～6%, Fe
2o
3≤ 1%, by raw mineral materials alumina powder 5%, mullite powder 5%, kaolin 90%, prepare by weight proportion, the carboxymethyl cellulose binder that adds compound weight 3%, through ball milling, mix 15～16 hours, be crushed to 250 mesh sieves, add lubricant, releasing agent is mediated in kneader with water and within 2～3 hours, is become pug, 20～30 ℃ of temperature, indoor old 6～7 days of relative humidity 50～90%, putting into vacuum deairing machine carries out after degassed pugging, put into hydraulic press through special mould extrusion molding, making diameter is 10mm, be highly 10mm, mesh 1 is delthyrium, aperture is the profile of tooth post base substrate 2 of 1.3mm.Formed body is first put 1～2 day at indoor the moon of 20～30 ℃ of temperature, relative humidity 50～90%, then in temperature is the drying room of 150～200 ℃, be dried to moisture and be less than 5%, rear repaired biscuit, is finally placed in kiln, within 2～3 hours under 1350 ℃ of high temperature, burns till.
The bulk density of product is 810kg/m
3, specific area is 1600m
2/ m
3, voidage is 72%, compression strength 420N/, 1300 ℃ of heat resisting temperatures.
Embodiment bis-: by the chemical composition of material prescription, be: Al
2o
395%, SiO
21%, CaO+MgO1～5%, K
2o+Na
2o1～6%, Fe
2o
3≤ 1%, by raw mineral materials alumina powder 90%, mullite powder 5%, kaolin 5%, prepare by weight proportion, the carboxymethyl cellulose binder that adds compound weight 5%, through ball milling, mix 18～20 hours, be crushed to 250 mesh sieves, add lubricant, releasing agent is mediated in kneader with water and within 2～3 hours, is become pug, 20～30 ℃ of temperature, indoor old 3～5 days of relative humidity 50～90%, putting into vacuum deairing machine carries out after degassed pugging, put into hydraulic press through special mould extrusion molding, making diameter is 100mm, be highly 100mm, mesh 1 is hexagonal hole, aperture is the profile of tooth post base substrate 2 of 3.0mm.Formed body is first put 1～2 day at indoor the moon of 20～30 ℃ of temperature, relative humidity 50～90%, then in temperature is the drying room of 150～200 ℃, be dried to moisture and be less than 5%, rear repaired biscuit, is finally placed in kiln, within 2～3 hours under 1650 ℃ of high temperature, burns till.
The bulk density of product is 780kg/m
3, specific area is 850m
2/ m
3, voidage is 80%, compression strength 480N/, 1600 ℃ of heat resisting temperatures.
Embodiment tri-: by the chemical composition of material prescription, be: Al
2o
370%, SiO
225%, CaO+MgO1～5%, K
2o+Na
2o1～6%, Fe
2o
3≤ 1%, by raw mineral materials alumina powder 50%, mullite powder 15%, kaolin 35%, prepare by weight proportion, the carboxymethyl cellulose binder that adds compound weight 4%, through ball milling, mix 16～18 hours, be crushed to 250 mesh sieves, add lubricant, releasing agent is mediated in kneader with water and within 1～3 hour, is become pug, 20～30 ℃ of temperature, indoor old 5～6 days of relative humidity 50～90%, putting into vacuum deairing machine carries out after degassed pugging, put into hydraulic press through special mould extrusion molding, making diameter is 50mm, be highly 50mm, mesh 1 is diamond hole, aperture is the profile of tooth post base substrate 2 of 1.5mm.Formed body is first put 1～2 day at indoor the moon of 20～30 ℃ of temperature, relative humidity 50～90%, then in temperature is the drying room of 150～200 ℃, be dried to moisture and be less than 5%, rear repaired biscuit, is finally placed in kiln, within 2～3 hours under 1550 ℃ of high temperature, burns till.
The bulk density of product is 760kg/m
3, specific area is 1480m
2/ m
3, voidage is 76%, compression strength 450N/, 1500 ℃ of heat resisting temperatures.
Claims (1)
1. a catalyst net nest support protective agent, the percentage by weight that the raw mineral materials of employing forms is: alumina powder 5～90%, mullite powder 2～15%, kaolin 5～90%, the chemical composition of described catalyst net nest support protective agent according to weight ratio is: Al
2o
330～95%, SiO
21～65%, CaO+MgO1～5%, K
2o+Na
2o1～6%, Fe
2o
3≤ 1%, the planform of catalyst net nest support protective agent is the profile of tooth cylinder with being covered with straight-through mesh, and its physical property is: bulk density 600～1000kg/m
3, specific area is respectively 500～1600m according to mesh aperture size
2/ m
3, voidage is 70～80%, compression strength>=400N/, and heat resisting temperature>=1200 ℃, the diameter of profile of tooth cylinder is 10～100mm, is highly 10～50mm; The aperture of mesh is 1～3mm, the hole shape of mesh is delthyrium, hexagonal hole, circular hole or diamond hole, it is characterized in that: the preparation method of described catalyst net nest support protective agent is: (1), by raw mineral materials by weight proportion: alumina powder 5～90%, mullite powder 2～15%, kaolin 5～90%, prepares; (2) carboxymethyl cellulose binder that, adds compound weight 3～5%, through ball milling, mix 15～20 hours, be crushed to 250 mesh sieves, add lubricant, releasing agent is mediated in kneader with water and within 1～3 hour, is become pug, at indoor old 3～7 days of 20～30 ℃ of temperature, relative humidity 50～90%, puts into vacuum deairing machine and carries out after degassed pugging, put into hydraulic press through special mould extrusion molding, make planform for the profile of tooth cylinder base substrate with being covered with straight-through mesh; (3), profile of tooth cylinder base substrate is first put 1～2 day at indoor the moon of 20～30 ℃ of temperature, relative humidity 50～90%, then in temperature is the drying room of 150～200 ℃, be dried to moisture and be less than 5%; (4), repaired biscuit, be finally placed in kiln, within 2～3 hours under 1350～1650 ℃ of high temperature, burn till.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110329205.0A CN102513162B (en) | 2011-10-26 | 2011-10-26 | Catalyst web nest support protective agent and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110329205.0A CN102513162B (en) | 2011-10-26 | 2011-10-26 | Catalyst web nest support protective agent and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102513162A CN102513162A (en) | 2012-06-27 |
| CN102513162B true CN102513162B (en) | 2014-01-22 |
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|---|---|---|---|
| CN201110329205.0A Active CN102513162B (en) | 2011-10-26 | 2011-10-26 | Catalyst web nest support protective agent and manufacturing method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492503A (en) * | 2014-12-25 | 2015-04-08 | 萍乡市中天化工填料有限公司 | Spherical honeycomb support protecting agent of catalyst and preparation method of spherical honeycomb support protecting agent |
| CN104888864B (en) * | 2015-04-30 | 2017-10-31 | 江西应陶康顺实业有限公司 | A kind of cellular Bird's Nest hydrogenation protecting agent |
| CN106747350B (en) * | 2016-12-02 | 2019-10-25 | 岳阳中科特种陶瓷科技有限公司 | A kind of manufacturing method of ceramic honey comb support protective agent |
| CN107159084B (en) * | 2017-05-23 | 2019-07-16 | 安徽工业大学 | A kind of filler core and from being evenly distributed with structured packing and its application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518743A (en) * | 2008-03-27 | 2009-09-02 | 萍乡市石化填料有限责任公司 | Porous spherical support protective agent |
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2011
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518743A (en) * | 2008-03-27 | 2009-09-02 | 萍乡市石化填料有限责任公司 | Porous spherical support protective agent |
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Effective date of registration: 20190404 Address after: 337000 Shili Village, Anyuan Town, Pingxiang City, Jiangxi Province Patentee after: Pingxiang Zhongtian Chemical Filler Co., Ltd. Address before: 337000 Pingxiang Anyuan New Industrial Park Pingxiang Zhongtian Chemical Filling Co., Ltd. Patentee before: Wu Shuqi |
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