JPS55152542A - Prevention of coarsening of catalyst - Google Patents
Prevention of coarsening of catalystInfo
- Publication number
- JPS55152542A JPS55152542A JP5857079A JP5857079A JPS55152542A JP S55152542 A JPS55152542 A JP S55152542A JP 5857079 A JP5857079 A JP 5857079A JP 5857079 A JP5857079 A JP 5857079A JP S55152542 A JPS55152542 A JP S55152542A
- Authority
- JP
- Japan
- Prior art keywords
- pressure loss
- catalyst
- coarsening
- gas
- particles
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1809—Controlling processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00539—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00654—Controlling the process by measures relating to the particulate material
- B01J2208/00672—Particle size selection
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
PURPOSE:To prevent the coarsening of catalyst by a method in which a purge gas is introduced to destroy coarsened particles at the time when a pressure loss begins to reduce by watching the pressure loss of the fluidized bed portion of a catalyst containing a specific proportion of iron in its reduction process. CONSTITUTION:In the fluidized bed portion 6, where the reductive reaction of a catalyst containing 30-60% iron with coke is carried out, the lowering of pressure loss due to the formation of gas-permeable paths occurs in the early period of bogging (coarsening), in which weak bonding occurs among catalysts, and the pnenomenon is watched by the differential pressure meter 15. When the pressure loss is lowered beyond a given value, a purge gas, e.g., nitrogen, etc., from introduction line 16 connected to the CO2 gas-introduction line 7, for example, is introduced at a flow rate of 50cm/sec in order to destroy compatively fragile particles, thus permitting good fluidized condition of catalyst particles to be maintained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5857079A JPS5854610B2 (en) | 1979-05-15 | 1979-05-15 | Method for preventing catalyst coarsening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5857079A JPS5854610B2 (en) | 1979-05-15 | 1979-05-15 | Method for preventing catalyst coarsening |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55152542A true JPS55152542A (en) | 1980-11-27 |
JPS5854610B2 JPS5854610B2 (en) | 1983-12-06 |
Family
ID=13088094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5857079A Expired JPS5854610B2 (en) | 1979-05-15 | 1979-05-15 | Method for preventing catalyst coarsening |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5854610B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2594548A1 (en) * | 1986-02-19 | 1987-08-21 | Bp Chimie Sa | METHOD AND DEVICE FOR DETECTING ANOMALIES IN A FLUIDIZED BED AND APPLICATION TO FLUIDIZED BED REACTORS FOR THE POLYMERIZATION OF GASEOUS PHASE ALPHAOLEFINS |
JP2008137864A (en) * | 2006-12-04 | 2008-06-19 | Habikkusu Kk | Method and device for producing hydrogen from biomass and iron oxide |
CN114222624A (en) * | 2019-08-05 | 2022-03-22 | 乔治洛德方法研究和开发液化空气有限公司 | Method for preventing fluidization of a catalytic fixed bed in a tubular upflow reactor of a steam methane reformer |
PL442707A1 (en) * | 2022-11-02 | 2024-05-06 | Politechnika Krakowska im.Tadeusza Kościuszki | Method of converting methanoic acid to hydrogen using a catalytic fluidized bed |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6150918U (en) * | 1984-09-10 | 1986-04-05 |
-
1979
- 1979-05-15 JP JP5857079A patent/JPS5854610B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2594548A1 (en) * | 1986-02-19 | 1987-08-21 | Bp Chimie Sa | METHOD AND DEVICE FOR DETECTING ANOMALIES IN A FLUIDIZED BED AND APPLICATION TO FLUIDIZED BED REACTORS FOR THE POLYMERIZATION OF GASEOUS PHASE ALPHAOLEFINS |
JP2008137864A (en) * | 2006-12-04 | 2008-06-19 | Habikkusu Kk | Method and device for producing hydrogen from biomass and iron oxide |
CN114222624A (en) * | 2019-08-05 | 2022-03-22 | 乔治洛德方法研究和开发液化空气有限公司 | Method for preventing fluidization of a catalytic fixed bed in a tubular upflow reactor of a steam methane reformer |
PL442707A1 (en) * | 2022-11-02 | 2024-05-06 | Politechnika Krakowska im.Tadeusza Kościuszki | Method of converting methanoic acid to hydrogen using a catalytic fluidized bed |
Also Published As
Publication number | Publication date |
---|---|
JPS5854610B2 (en) | 1983-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1094117A (en) | Separation process | |
KR970007913B1 (en) | High productivity process for the production of maleic anhydride | |
MY103103A (en) | Pressure swing adsorption control method and apparatus | |
KR960005489B1 (en) | Method and apparatus for treating gases and particle solid in a fluid bed | |
GB1415637A (en) | Process for the catalytic hydrogenation of di-amino-phenyl-methane | |
GB1437750A (en) | Hot metal gasification of coal | |
AU643050B2 (en) | Gas phase polymerisation | |
JPS55152542A (en) | Prevention of coarsening of catalyst | |
GB1469562A (en) | Reactor-to-regenerator catalyst transporting method | |
EP0209908A3 (en) | Apparatus and process for producing carbon black | |
GB1527021A (en) | Method and apparatus for endothermic reduction processes | |
GB1278199A (en) | Gasification of carbonaceous material | |
GB1387044A (en) | Synthesis apparatus | |
DE3369968D1 (en) | Process for the purification of benzoic acid | |
EP0115100A3 (en) | Process for the preparation of pharmaceutical benzoic acid | |
JPS5350071A (en) | Method and apparatus for discharging extraneous substance | |
JPS5399070A (en) | Gas treating apparatus | |
ES433141A1 (en) | Process for the continuous passivation of sponge iron particles | |
GB1285119A (en) | Process for the manufacture of methallyl acetate | |
GB1517620A (en) | Process for thermally gasifying high-boiling hydrocarbons by treatment with steam and oxygen | |
GB1458936A (en) | Process for the preparation of acetoxybutanols | |
JPS5372789A (en) | Supplying method for fluid to fluidized bed | |
ES8306988A1 (en) | Process for the preparation of gasoline-like hydrocarbons from coal gas. | |
Usui et al. | Influence of H sub 2 O Partial Pressure Upon the Retardation in the Final Stage of Reduction of Fluxed Pellets With H sub 2--H sub 2 O Gas Mixture | |
JPS5441178A (en) | Pressure detector method in fluidized bed |