CN201832657U - Catalyst particle with irregular shape - Google Patents
Catalyst particle with irregular shape Download PDFInfo
- Publication number
- CN201832657U CN201832657U CN2010205636881U CN201020563688U CN201832657U CN 201832657 U CN201832657 U CN 201832657U CN 2010205636881 U CN2010205636881 U CN 2010205636881U CN 201020563688 U CN201020563688 U CN 201020563688U CN 201832657 U CN201832657 U CN 201832657U
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- Prior art keywords
- catalyst
- symmetrical
- catalyst particle
- particle
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003054 catalyst Substances 0.000 title claims abstract description 45
- 239000002245 particle Substances 0.000 title claims abstract description 23
- 230000001788 irregular Effects 0.000 title abstract 4
- 239000008187 granular material Substances 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a catalyst particle with an irregular shape. In the utility model, the catalyst particle with the irregular shape is in a cylindrical shape with the two ends combined with hemispherical shapes, i.e. cross sections with symmetrical semicircular shapes are respectively connected with rectangles, and two symmetrical short sides of a rectangular cross section are respectively connected with two symmetrical semicircles. Compared with the prior art, the catalyst particle with the irregular shape has the advantages of large external surface area, short dispersion long range, high porosity, good strength and the like, and is suitable for catalytic reaction process in oil refining, chemical industry, environment protection and other fields.
Description
Technical field
The utility model relates to a kind of special-shaped catalyst particle, has specifically that external surface area is big, the diffusion special-shaped catalyst particle that long-range is short, voidage is high, intensity is good, is suitable for refining oil, the catalytic reaction process in chemical industry, environmental protection and other field.
Background technology
In heterogeneous catalytic reaction, catalyst geometry and granularity are to implement very one of significant effects factor of catalytic hydrogenation reaction process.It directly relates to the normal performance of catalyst lateral reactivity.Geometry and the desirable catalyst of granularity, logistics distribution, mass transfer and heat transfer, hydrodynamics and bed layer pressure degradation in the reaction system are more reasonable with making.
The shape of catalyst has multiple, is generally sphere, sheet, bar shaped, annular, spirality, cylindrical, trilobal, quatrefoil and profile of tooth etc.
Studies show that, reduce the outer surface that the catalyst granules diameter can increase catalyst, and the catalyst of same diameter is prepared into the outer surface size that difformity can change catalyst.
In the catalyst commonly used, pluses and minuses are separately arranged all, as cylinder shape catalyst, intensity is low, and the surface area of catalyst is little; The cloverleaf pattern catalyst, as mentioning a kind of trilobal cross catalyst design among the US4394303, though voidage increases to some extent, but be difficult to control product quality in the actual production, cause catalyst strength to descend easily, and reduce abrasion owing to colliding each other between the catalyst granules in the use, powder increases, and pressure drop increases.
Spheric catalyst, as CN200810163567.5, CN200710010377.5, CN200710010378.X, spheric granules is easy to flow, surface area is big, the utilization rate height, and do not have as the sharp-pointed coarse corner that is crashed easily in other shape, but voidage is low, forms big pressure drop easily.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of intensity height, voidage is big, the surface is big, the low special-shaped catalyst particle of pressure drop.
The utility model special-shaped catalyst particle be cylindrical two ends in conjunction with hemispheric special-shaped catalyst particle, promptly cross section for the symmetry semicircle connect rectangle respectively, rectangular two the symmetrical minor faces of cross section connect the semicircle of two symmetries respectively.
The length of rectangular two symmetrical minor faces, just Dui Cheng semicircular diameter is d; The length on rectangular two long limits of symmetry is L; Whole catalyst granules total length (L+d).
Wherein, the pass of size is: L=1d～10d, preferred L=2d～5d.D=1mm～8mm, preferred 3mm～5mm.
For further increasing surface area, improve its voidage, can also certain through hole be set on this catalyst granules, as Fig. 2.This hole is different from the nanometer level microporous of catalyst self inside.Circular port or slotted eye can be set in the hemispherical of symmetry, also circular port or slotted eye can be set on cylinder.The number in hole, flexible in size setting generally can be provided with 2～5, and the axis in hole can be at grade, also can be on different planes, hole as shown in Figure 2, the diameter d 1=0.1d in the hole that in symmetrical hemispherical, is provided with～0.4d, preferred d1=0.2d～0.3d; The diameter d 2=0.1d in the hole that on cylinder, is provided with～0.9d, preferred 0.4d～0.6d.
The utility model special-shaped catalyst particle combines the advantage of cylinder shape catalyst and spheric catalyst, have that external surface area is big, the diffusion advantage that long-range is short, diffusional resistance is little, voidage is high, intensity is good, simultaneously, catalyst has more space to hold dirt, has prolonged life of catalyst.Be suitable as the catalytic reaction catalyst in oil refining, chemical industry, environmental protection and other field.This catalyst can also increase voidage, improves mass-transfer performance, reduces the beds pressure drop.
Description of drawings
Fig. 1 is the cross sectional representation of a kind of special-shaped catalyst of the present utility model.
Fig. 2 is the cross sectional representation of another kind of special-shaped catalyst of the present utility model.
The specific embodiment
Further the utility model is described below in conjunction with the drawings and specific embodiments.
Embodiment
Take by weighing mixing such as a certain proportion of boehmite, graphite, water, peptizing agent, auxiliary agent.Make orifice plate or mould according to Fig. 1 then, make corresponding shape on former, dry then, 600 ℃ of following roastings 8 hours obtain the finished product carrier.Measure bulk density, side pressure strength, the voidage of catalyst carrier then.Mensuration obtains catalyst carrier bulk density 0.60g/ml, mechanical strength＞100N/mm, voidage 43%, surface area 180m
2/ g.Therefore, the catalyst shape that the utility model proposes has the advantages that bulk density is little, mechanical strength is high, voidage is big.
On this carrier basis, can adopt dipping, spray, method such as co-precipitation loads to reactive metal on the carrier, forms suitable finished catalyst.
Claims (10)
1. special-shaped catalyst particle, it is characterized in that: the special-shaped catalyst particle is that cylindrical two ends are in conjunction with hemispheric special-shaped catalyst particle, be that cross section is that symmetrical semicircle connects rectangle respectively, rectangular two the symmetrical minor faces of cross section connect the semicircle of two symmetries respectively.
2. according to the described particle of claim 1, it is characterized in that: the length of rectangular two symmetrical minor faces, promptly Dui Cheng semicircular diameter is d; The length on rectangular two long limits of symmetry is L; Its size relationship is: L=1d～10d, d=1mm～8mm.
3. according to the described particle of claim 2, it is characterized in that: its size relationship is L=2d～5d, d=3mm～5mm.
4. according to the described particle of claim 2, it is characterized in that: on this catalyst granules, through hole is set.
5. according to the described particle of claim 4, it is characterized in that: circular port or slotted eye are set in the hemispherical of symmetry.
6. according to claim 4 or 5 described particles, it is characterized in that: circular port or slotted eye are set on cylinder.
7. according to the described particle of claim 4, it is characterized in that: through hole is provided with 2～5.
8. according to the described particle of claim 5, it is characterized in that: the diameter d 1=0.1d in the hole that in symmetrical hemispherical, is provided with～0.4d.
9. according to the described particle of claim 6, it is characterized in that: the diameter d 2=0.1d in the hole that on cylinder, is provided with～0.9d.
10. according to the described particle of claim 6, it is characterized in that: the diameter d 2=0.4d in the hole that on cylinder, is provided with～0.6d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205636881U CN201832657U (en) | 2010-10-13 | 2010-10-13 | Catalyst particle with irregular shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205636881U CN201832657U (en) | 2010-10-13 | 2010-10-13 | Catalyst particle with irregular shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832657U true CN201832657U (en) | 2011-05-18 |
Family
ID=44002752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205636881U Expired - Lifetime CN201832657U (en) | 2010-10-13 | 2010-10-13 | Catalyst particle with irregular shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201832657U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909091A (en) * | 2012-10-20 | 2013-02-06 | 安徽工程大学 | Solid catalyst particle |
| CN102909085A (en) * | 2012-10-12 | 2013-02-06 | 安徽工程大学 | Hydrogenation catalyst granule |
| CN104624246A (en) * | 2013-11-13 | 2015-05-20 | 中国石油化工股份有限公司 | Alumina carrier for silver catalyst and catalyst |
| CN111065461A (en) * | 2017-09-15 | 2020-04-24 | 大金工业株式会社 | Catalyst particles |
-
2010
- 2010-10-13 CN CN2010205636881U patent/CN201832657U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909085A (en) * | 2012-10-12 | 2013-02-06 | 安徽工程大学 | Hydrogenation catalyst granule |
| CN102909091A (en) * | 2012-10-20 | 2013-02-06 | 安徽工程大学 | Solid catalyst particle |
| CN104624246A (en) * | 2013-11-13 | 2015-05-20 | 中国石油化工股份有限公司 | Alumina carrier for silver catalyst and catalyst |
| CN111065461A (en) * | 2017-09-15 | 2020-04-24 | 大金工业株式会社 | Catalyst particles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |