CN2389717Y - Homoheterostyly catalyst - Google Patents
Homoheterostyly catalyst Download PDFInfo
- Publication number
- CN2389717Y CN2389717Y CN99225198.2U CN99225198U CN2389717Y CN 2389717 Y CN2389717 Y CN 2389717Y CN 99225198 U CN99225198 U CN 99225198U CN 2389717 Y CN2389717 Y CN 2389717Y
- Authority
- CN
- China
- Prior art keywords
- catalyst
- radius
- granules
- catalyst granules
- described catalyst
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 46
- 239000008187 granular material Substances 0.000 claims abstract 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- 229910002796 Si–Al Inorganic materials 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- LKTZODAHLMBGLG-UHFFFAOYSA-N alumanylidynesilicon;$l^{2}-alumanylidenesilylidenealuminum Chemical compound [Si]#[Al].[Si]#[Al].[Al]=[Si]=[Al] LKTZODAHLMBGLG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000376 reactant Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The utility model discloses a homoheterostyly catalyst granule, which is characterized in that three to five grooves are evenly arranged along the axial direction on the surface of the hollow columnar catalyst. The grooves are arches with various shapes, and the depth and width of the grooves are smaller than one third of the radius of the catalyst. The size of the bar-shaped catalyst of the utility model can be selected according to the requirements of reaction processes.
Description
The utility model relates to petroleum refining and the used catalyst of chemical field catalytic process, particularly relates to the shape of this type of catalyst.
Mostly be several shapes such as distortion of annular, sphere, bar shaped and these several shapes at present in industrial catalyst for application profile, these shapes respectively have pluses and minuses.Wherein the advantage of annular and bar shaped catalyst is the bed voidage height, and shortcoming is the logistics skewness, is unfavorable for improving reaction efficiency.Spherical advantage is that rollability is good, loads evenly, closely knit, but that its shortcoming is a bed voidage is little, and in use resistance drop gathers way comparatively fast, is unfavorable for improving the utilization rate of catalyst.The carrier of a kind of special-shaped catalyst that Chinese patent CN97116251.4 provides is to offer four arch grooves on the cylinder shape catalyst carrier surface, it has bigger external surface area than common bar shaped catalyst, bed voidage has also had raising, resistance drop is little, permeability is good, shortened reactant by outer surface everywhere to the average distance of diffusion inside.
The purpose of this utility model is exactly the shortcoming that exists at above-mentioned catalyst shape, the catalyst that a kind of external surface area is bigger, bed voidage is higher, logistics is evenly distributed is provided, and shorten reactant and diffuse to the average distance of entity inside everywhere from outer surface, to improve the service efficiency of catalyst.
The utility model is on the surface of logical stem shape catalyst, evenly offers three to five grooves along axis direction.Groove can be the arch of different shape, and the degree of depth of groove is less than 1/3rd of the catalyst radius, and the width of groove is less than 1/3rd of the catalyst radius; The ratio of the diameter of catalyst and length is between 0.5 to 1.5, and the cross section of catalyst is circular or oval, is preferably oval.Middle hole is circular or oval, and the radius in hole is less than 1/3rd of the catalyst radius.The size of bar shaped catalyst of the present utility model can require to select according to course of reaction.
The carrier material of catalyst is heat-resisting inorganic oxide, can be artificial aluminium oxide that synthesizes and/or aluminium oxide, titanium oxide, amorphous aluminum silicide and the Si-Al zeolite etc. that contain other elements, also can be natural alumina and the various clay that contains other elements.
Accompanying drawing is an example along viewgraph of cross-section of the present utility model.
The utility model has the advantages that:
1, simple for production, the structure that changes mould can be made.
2, increased the outer surface of bar shaped catalyst, reduced reactant and diffused to the average distance of catalyst inside everywhere, improved reaction efficiency by outer surface; Simultaneously also can hold more impurity, prolong life of catalyst.
3, increase the voidage of bar shaped catalyst, reduced the flow resistance of reaction logistics in beds, reduce the tendentiousness of coking, the quick rising that the retaining bed layer resistance falls has improved the utilization rate of catalyst.
Claims (8)
1. a catalyst granules is characterized in that evenly offering three to five grooves along axis direction on the surface of logical stem shape catalyst.
2. according to the described catalyst granules of claim 1, wherein groove is an arch, and the degree of depth of groove is less than 1/3rd of the catalyst radius, and the width of groove is less than 1/3rd of the catalyst radius.
3. according to the described catalyst granules of claim 1, wherein the cross section of catalyst is circular or oval.
4. according to claim 1 or 3 described catalyst granules, wherein the cross section of catalyst is oval.
5. according to the described catalyst granules of claim 1, wherein the ratio of this catalyst diameter and length is between 0.5 to 1.5, and the through-core hole in the middle of the catalyst is circular or oval, and the radius in hole is less than 1/3rd of the catalyst radius.
6. according to the described catalyst granules of claim 1, wherein the material of carrier is heat-resisting inorganic oxide.
7. according to the described catalyst granules of claim 6, wherein carrier is artificial aluminium oxide that synthesizes and/or aluminium oxide, titanium oxide, amorphous aluminum silicide and the Si-Al zeolite that contains other elements.
8. according to the described catalyst granules of claim 6, wherein carrier is natural alumina and various clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225198.2U CN2389717Y (en) | 1999-09-29 | 1999-09-29 | Homoheterostyly catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99225198.2U CN2389717Y (en) | 1999-09-29 | 1999-09-29 | Homoheterostyly catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2389717Y true CN2389717Y (en) | 2000-08-02 |
Family
ID=34015112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99225198.2U Expired - Lifetime CN2389717Y (en) | 1999-09-29 | 1999-09-29 | Homoheterostyly catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2389717Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363106C (en) * | 2004-12-28 | 2008-01-23 | 中国石油化工股份有限公司 | Solid catalyst with particular form |
| CN106540727A (en) * | 2015-09-17 | 2017-03-29 | 刘清源 | A kind of Characteristics of Abnormal Shape Catalyst Particles of butane oxidation cis-butenedioic anhydride |
-
1999
- 1999-09-29 CN CN99225198.2U patent/CN2389717Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363106C (en) * | 2004-12-28 | 2008-01-23 | 中国石油化工股份有限公司 | Solid catalyst with particular form |
| CN106540727A (en) * | 2015-09-17 | 2017-03-29 | 刘清源 | A kind of Characteristics of Abnormal Shape Catalyst Particles of butane oxidation cis-butenedioic anhydride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |