JPS56147626A - Fluidized bed catalyst - Google Patents
Fluidized bed catalystInfo
- Publication number
- JPS56147626A JPS56147626A JP4960580A JP4960580A JPS56147626A JP S56147626 A JPS56147626 A JP S56147626A JP 4960580 A JP4960580 A JP 4960580A JP 4960580 A JP4960580 A JP 4960580A JP S56147626 A JPS56147626 A JP S56147626A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- catalyst
- grains
- bed catalyst
- reaction
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000005587 bubbling Effects 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 238000005243 fluidization Methods 0.000 abstract 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 1
- 238000009491 slugging Methods 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To enhance result of a fluidized bed reaction, by mixing catalyst grains of various diameters in specified proportions in order to use them in the fluidization reactor.
CONSTITUTION: In the fluidized bed reaction for producing melamine from urea in presence of ammonia, etc., the grain diameter distribution of its catalyst is prepared as follows: (a+b+c+d+e+f+g+h)=100, 30≤(f+g+h)≤60, (b-c), (c-d) and (d-e)<13, and (e+f)<35, where a, b, c, d, e, f, g, and h are wt% of the grains of >350, 250W350, 177W250, 149W177, 105W149, 74W105, 50W74, and >50 microns, respectively, and in addition, a≤5, b≤15, c, d, e, f, and g≤20, h≤25. Use of such catalyst prevents bubbling, slugging, etc. in the fluidized bed of the catalyst, and enhances reaction result.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55049605A JPS6013746B2 (en) | 1980-04-17 | 1980-04-17 | fluidized bed catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55049605A JPS6013746B2 (en) | 1980-04-17 | 1980-04-17 | fluidized bed catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56147626A true JPS56147626A (en) | 1981-11-16 |
| JPS6013746B2 JPS6013746B2 (en) | 1985-04-09 |
Family
ID=12835858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55049605A Expired JPS6013746B2 (en) | 1980-04-17 | 1980-04-17 | fluidized bed catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013746B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165860U (en) * | 1987-04-17 | 1988-10-28 |
-
1980
- 1980-04-17 JP JP55049605A patent/JPS6013746B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6013746B2 (en) | 1985-04-09 |
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