FR3120804B3 - Tubular reactors with graduated catalytic bed for improved heat transfer - Google Patents

Tubular reactors with graduated catalytic bed for improved heat transfer Download PDF

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Publication number
FR3120804B3
FR3120804B3 FR2102656A FR2102656A FR3120804B3 FR 3120804 B3 FR3120804 B3 FR 3120804B3 FR 2102656 A FR2102656 A FR 2102656A FR 2102656 A FR2102656 A FR 2102656A FR 3120804 B3 FR3120804 B3 FR 3120804B3
Authority
FR
France
Prior art keywords
tubular reactor
particles
catalytic bed
diameter
graduated
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.)
Active
Application number
FR2102656A
Other languages
French (fr)
Other versions
FR3120804A3 (en
Inventor
Daniel Gary
Raphaël Faure
Sebastien Cadalen
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR2102656A priority Critical patent/FR3120804B3/en
Publication of FR3120804A3 publication Critical patent/FR3120804A3/en
Application granted granted Critical
Publication of FR3120804B3 publication Critical patent/FR3120804B3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
    • B01J8/025—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical in a cylindrical shaped bed
    • 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
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0285—Heating or cooling the reactor
    • 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
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00504—Controlling the temperature by means of a burner
    • 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
    • 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
    • B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
    • B01J2208/023—Details
    • B01J2208/024—Particulate material
    • B01J2208/025—Two or more types of catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Réacteur tubulaire pour un procédé de reformage de méthane, de diamètre intérieur D, de longueur L avec une première extrémité ouverte pour introduire un mélange gazeux d’alimentation et l’extrémité opposée ouverte pour l’évacuation du mélange gazeux produit, du catalyseur permettant la réaction de conversion du méthane, sous forme de particules étant disposé dans le réacteur tubulaire, l’apport de chaleur externe nécessaire à la réaction de reformage étant fourni par des brûleurs disposés dans le four où est installé le réacteur tubulaire, caractérisé en ce que au moins deux types de particules de catalyseur de dimensions différentes sont disposés dans le tube formant un lit catalytique graduel dans lequel: - les plus petites particules de diamètre a1 compris entre 2 mm et 10 mm, de préférence entre 4 mm et 8 mm forment une couche annulaire d’épaisseur a au moins égale à a1 plaquée contre la paroi du réacteur tubulaire, - les particules les plus grandes de dimension b1 sont disposées dans la partie centrale du réacteur tubulaire où elles remplissent un espace de forme cylindrique dans l’axe du réacteur, le diamètre b dudit espace cylindrique étant inférieur ou égal à D-2a, Figure de l’abrégé : Fig. 2Tubular reactor for a methane reforming process, of internal diameter D, of length L with a first end open to introduce a gaseous feed mixture and the opposite end open for the evacuation of the gaseous mixture produced, of the catalyst allowing the conversion reaction of methane, in the form of particles, being arranged in the tubular reactor, the external heat input necessary for the reforming reaction being provided by burners arranged in the furnace where the tubular reactor is installed, characterized in that at the at least two types of catalyst particles of different sizes are arranged in the tube forming a gradual catalytic bed in which: - the smallest particles with a diameter a1 of between 2 mm and 10 mm, preferably between 4 mm and 8 mm, form a layer ring of thickness a at least equal to a1 pressed against the wall of the tubular reactor, - the largest particles of dimension b1 are arranged in the central part of the tubular reactor where they fill a space of cylindrical shape in the axis of the reactor , the diameter b of said cylindrical space being less than or equal to D-2a, Figure of the abstract: FIG. 2

FR2102656A 2021-03-17 2021-03-17 Tubular reactors with graduated catalytic bed for improved heat transfer Active FR3120804B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102656A FR3120804B3 (en) 2021-03-17 2021-03-17 Tubular reactors with graduated catalytic bed for improved heat transfer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102656A FR3120804B3 (en) 2021-03-17 2021-03-17 Tubular reactors with graduated catalytic bed for improved heat transfer
FR2102656 2021-03-17

Publications (2)

Publication Number Publication Date
FR3120804A3 FR3120804A3 (en) 2022-09-23
FR3120804B3 true FR3120804B3 (en) 2023-08-18

Family

ID=83319378

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102656A Active FR3120804B3 (en) 2021-03-17 2021-03-17 Tubular reactors with graduated catalytic bed for improved heat transfer

Country Status (1)

Country Link
FR (1) FR3120804B3 (en)

Also Published As

Publication number Publication date
FR3120804A3 (en) 2022-09-23

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