JPS55152542A - Prevention of coarsening of catalyst - Google Patents

Prevention of coarsening of catalyst

Info

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
Application number
JP5857079A
Other languages
Japanese (ja)
Other versions
JPS5854610B2 (en
Inventor
Kuniaki Fujimori
Teruo Suzuka
Yukio Inoue
Hiroshi Okino
Shiro Aizawa
Yasushi Ishibashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP5857079A priority Critical patent/JPS5854610B2/en
Publication of JPS55152542A publication Critical patent/JPS55152542A/en
Publication of JPS5854610B2 publication Critical patent/JPS5854610B2/en
Expired legal-status Critical Current

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)
  • Hydrogen, Water And Hydrids (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (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.
JP5857079A 1979-05-15 1979-05-15 Method for preventing catalyst coarsening Expired JPS5854610B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150918U (en) * 1984-09-10 1986-04-05

Cited By (4)

* Cited by examiner, † Cited by third party
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

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