WO1993008907A1 - Gouttiere transporteuse de chargement de pellets catalytiques dans des reacteurs verticaux tubulaires - Google Patents

Gouttiere transporteuse de chargement de pellets catalytiques dans des reacteurs verticaux tubulaires Download PDF

Info

Publication number
WO1993008907A1
WO1993008907A1 PCT/US1992/009303 US9209303W WO9308907A1 WO 1993008907 A1 WO1993008907 A1 WO 1993008907A1 US 9209303 W US9209303 W US 9209303W WO 9308907 A1 WO9308907 A1 WO 9308907A1
Authority
WO
WIPO (PCT)
Prior art keywords
catalyst
loading
conveyor trough
tube
section
Prior art date
Application number
PCT/US1992/009303
Other languages
English (en)
Inventor
Kelly James Johnson
Original Assignee
Catalyst Technology, Inc.
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 Catalyst Technology, Inc. filed Critical Catalyst Technology, Inc.
Publication of WO1993008907A1 publication Critical patent/WO1993008907A1/fr

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
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/0035—Periodical feeding or evacuation
    • 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
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/003—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor in a downward flow
    • 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
    • B01J8/06—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 in tube reactors; the solid particles being arranged in tubes
    • 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
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00752—Feeding

Definitions

  • This invention relates broadly to the field of 5 loading receivers with a flowable material and specifically to the field of rapid loading of vertical process vessels with flowable catalysts without bridging of the catalyst material.
  • 25 quantity of flowable catalyst material is placed in a plurality of containers mounted on a movable frame using a movable loading tray. Operation of a valve means enables
  • each funnel module contains a hopper m which a rotatable metering rod is mounted.
  • Each of the metering rods is height adjustable, so that the end of the metering rod can be raised or lowered in the mouth of the funnel to either increase or decrease the catalyst drop rate.
  • each of the metering rods is driven by a single motor having a variable-speed reducer so that the speed of rotation of all of the metering rods can be decreased or increased as desired.
  • This invention relates to an apparatus for loading flowable material, particularly catalysts, into multi-tube reactors quickly, without bridging and with maximum control over the catalyst drop rate and,
  • the invention utilizes a specially shaped conveyor trough to load reactors in a more rapid, consistent manner without bridging of the reactor tubes and with minimum catalyst breakage and dust production.
  • FIG. 1 is a side elevation view of the preferred embodiment.
  • FIG. 2 is a plan view of the preferred embodiment taken along line 2 of FIG. 1.
  • FIG. 3 is an isometric view of the loading system shown without a dust cover.
  • FIG. 4 is an isometric view of an embodiment of the specially shaped feed chutes. Best Mode for Carrying Out the Invention
  • a catalyst tube it is not unusual for a catalyst tube to have an inside diameter of 0.75-2.00 inches (1.91-5.08 centimeters) and to be 10-60 feet (3-18 meters) long, and the reactor may contain as many as 25,000 such tubes.
  • Each of the tubes is connected at each end to a tube sheet, and the entire bundle of tubes and tube sheets is jacketed and filled with a heat transfer fluid or medium, as, for example, water or kerosene. Due to the heat given off by the reaction, the space velocity is maintained at an extremely high rate so that there can be considerable abrasion of the catalytic particles within the small diameter tubes if the particles are loosely packed.
  • a catalyst loading apparatus is generally designated at 10 and comprises a catalyst supply hopper 12 for receiving a catalyst for loading into a reactor tube 14 through loading funnel 15.
  • the catalyst pellets are received in the supply hopper 12 and may be alumina impregnated with silver and other chemicals. Variously shaped pellets may be used.
  • the catalyst is silver-based ethylene oxide pellets having a mean shortest dimension of about 0.25 inch (0.64 centimeter) and a mean longest dimension of about 0.375 inch (0.953 centimeter). Of utmost importance is a continuous, uniform supply of catalyst through the loading funnel 15 and into the reactor tubes 14.
  • any catalyst dust generated by the operation may be drawn off, for example, by a vacuum line or tube 13 located at the top of the hopper 12 and at the end of the discharge tray 20.
  • the reactor comprises a plurality of catalyst tubes 14 which are secured to a reactor tray or tube sheet 17.
  • the catalyst loader 10 is located above, or may rest on, the reactor tray 17 and is moved from tube to tube as each tube 14 is loaded. Normally, several loaders, 10 may be used at one time. Alternatively, or additionally, multi-tube loaders 10 may be used.
  • Supply hopper 12 may actually be partitioned to provide a plurality of supply hoppers, for example 12a, 12b, and 12c, so that each separate hopper may be loaded with the desired amount for filling one catalyst tube 14.
  • Each hopper compartment, for example 12a, 12b and 12c may be loaded with a pre-measured bag of catalyst sufficient to fill one tube 14.
  • the catalyst material falls onto the conveyor tray 20 and the vibrator 22 forces the catalyst to move along tray 20 comprising specially-designed conveyor troughs or chutes 24 (better shown in FIG. 4) .
  • the output of troughs 24 is fed by gravity into individual loading funnels 15 and each funnel 15 fills an individual tube 14.
  • the troughs 24, are specially designed to be polygonal in complete cross-section having one side of the polygon on the bottom (flat-bottomed) , preferably to have an octagonal cross-section but with three sides truncated so that the troughs 24 comprise only five sides of the octagon.
  • the V-shaped trough allows only one catalyst particle at a time to flow into a tube 14, thereby greatly increasing the loading time required.
  • the troughs 24 may have, e.g. a hexagonal cross-section truncated so as to form a three-sided trough or a pentagonal cross-section truncated so as to form a three- sided trough.
  • the vibrator 22 when attached to a loading tray 20 being fed by multiple feeding hoppers 12, allows each compartment, e.g. 12a, 12b, 12c, etc. to uniformly empty at the same time. This gives the same loaded length of catalyst and thus the same pressure drop across the tubes 14.
  • FIG. 3 shows an isometric view of the loader 10 without the dust cover.
  • the individual hoppers 12a, 12b, and 12c are shown, each supplying catalyst to individual troughs or c chutes 24 and ultimately into loading funnels 15 for loading an individual catalyst tube 14 with a measured quantity of catalyst.
  • the catalyst loader 10, as described above, thus assures that less catalyst breakage occurs (therefore minimizing dust production) and more uniform loading time of the catalyst loaders 10 which may be used at one time is obtained (all loaders 10 may be adjusted to fill the individual tubes 14 within about ten seconds of each other.)
  • the preferred loading time per tube varies with the type and size of material.
  • the invention is particularly applicable to jacketed multi-tube reactors used in the production of ethylene oxide, phthalic anhydride, maleic anhydride, acrylic acid, vinyl chloride monomer (VCM) , ethylene dichloride (EDC) , and vinyl acetate, but is not limited to such uses.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Appareil et procédé de chargement de matériaux coulables, spécifiquement des catalyseurs dans des récipients, spécifiquement des réacteurs à tubes multiples, rapidement, sans formation de ponts du catalyseur et avec une maîtrise maximum de la vitesse de chute du catalyseur et, par conséquent, une maîtrise de la densité du tassement du catalyseur dans les tubes des réacteurs. L'invention utilise une gouttière transporteuse spécialement conçue présentant une coupe transversale polygonale, de préférence octogonale, permettant de charger des réacteurs de manière plus rapide et cohérente sans formation de ponts et avec un minimum de rupture du catalyseur et de production de poussière. L'invention s'applique notamment à des réacteurs multi-tubes chemisés utilisés dans la production de monomères de chlorure de vinyle (MCV), de dichlorure d'éthylène (DCE), d'acétate de vinyle, d'acide acrylique, d'oxyde d'éthylène, d'anhydride phtalique et d'anhydrique maléique.
PCT/US1992/009303 1991-11-08 1992-10-30 Gouttiere transporteuse de chargement de pellets catalytiques dans des reacteurs verticaux tubulaires WO1993008907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79060991A 1991-11-08 1991-11-08
US790,609 1991-11-08

Publications (1)

Publication Number Publication Date
WO1993008907A1 true WO1993008907A1 (fr) 1993-05-13

Family

ID=25151225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/009303 WO1993008907A1 (fr) 1991-11-08 1992-10-30 Gouttiere transporteuse de chargement de pellets catalytiques dans des reacteurs verticaux tubulaires

Country Status (2)

Country Link
CA (1) CA2123125A1 (fr)
WO (1) WO1993008907A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005089924A1 (fr) * 2004-03-15 2005-09-29 Basf Aktiengesellschaft Dispositif pour remplir des tuyaux, des recipients et analogues de produits en vrac
WO2006100070A1 (fr) * 2005-03-24 2006-09-28 Süd-Chemie AG Dispositif d'alimentation pour reacteurs a faisceau tubulaire
WO2006106019A1 (fr) * 2005-04-08 2006-10-12 Degussa Gmbh Procede pour remplir des appareils avec des matieres solides
US7776288B2 (en) 2006-03-23 2010-08-17 Süd-Chemie AG Charging device for a tubular reactor
US7984654B2 (en) 2006-05-31 2011-07-26 Süd-Chemie AG Testing device for tube bundle reactors
US20140158251A1 (en) * 2012-12-07 2014-06-12 Harro Höfliger Verpackungsmaschinen GmbH Filling System for Filling in Powder and Method for Filling in Powder
CN105658317A (zh) * 2013-09-10 2016-06-08 萨尼诺德公司 填充管式催化反应器的移动设备
EP3042716A1 (fr) * 2015-01-09 2016-07-13 Haldor Topsøe A/S Appareil pour le chargement d'une pluralité de matériau catalytique particulaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR521313A (fr) * 1919-08-19 1921-07-09 Hinselmann Geb Couloir transporteur
US4402643A (en) * 1981-02-18 1983-09-06 Ppg Industries, Inc. Catalyst loader

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR521313A (fr) * 1919-08-19 1921-07-09 Hinselmann Geb Couloir transporteur
US4402643A (en) * 1981-02-18 1983-09-06 Ppg Industries, Inc. Catalyst loader

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005089924A1 (fr) * 2004-03-15 2005-09-29 Basf Aktiengesellschaft Dispositif pour remplir des tuyaux, des recipients et analogues de produits en vrac
WO2006100070A1 (fr) * 2005-03-24 2006-09-28 Süd-Chemie AG Dispositif d'alimentation pour reacteurs a faisceau tubulaire
US7897120B2 (en) 2005-03-24 2011-03-01 Sud-Chemie Ag Feeding device for bundled tube reactor
WO2006106019A1 (fr) * 2005-04-08 2006-10-12 Degussa Gmbh Procede pour remplir des appareils avec des matieres solides
US7776288B2 (en) 2006-03-23 2010-08-17 Süd-Chemie AG Charging device for a tubular reactor
US7984654B2 (en) 2006-05-31 2011-07-26 Süd-Chemie AG Testing device for tube bundle reactors
US20140158251A1 (en) * 2012-12-07 2014-06-12 Harro Höfliger Verpackungsmaschinen GmbH Filling System for Filling in Powder and Method for Filling in Powder
US9688424B2 (en) * 2012-12-07 2017-06-27 Harro Höfliger Verpackungsmaschinen GmbH Filling system for filling in powder and method for filling in powder
CN105658317A (zh) * 2013-09-10 2016-06-08 萨尼诺德公司 填充管式催化反应器的移动设备
EP3042716A1 (fr) * 2015-01-09 2016-07-13 Haldor Topsøe A/S Appareil pour le chargement d'une pluralité de matériau catalytique particulaire

Also Published As

Publication number Publication date
CA2123125A1 (fr) 1993-05-13

Similar Documents

Publication Publication Date Title
US4402643A (en) Catalyst loader
US5626455A (en) Ethylene oxide catalyst loading device
US7897120B2 (en) Feeding device for bundled tube reactor
US5758699A (en) Process and apparatus for the uniform distribution of a comminuted solid in an enclosure
JPS6366568B2 (fr)
WO1993008907A1 (fr) Gouttiere transporteuse de chargement de pellets catalytiques dans des reacteurs verticaux tubulaires
EP1388368A2 (fr) Procédé et dispositif de remplisage uniformement d'un récipient avec des particules
JP2007529301A (ja) 管、容器等にばら材料を導入する装置
US3976232A (en) Device for emptying silos for bulk material, provided with a flat or slightly inclined bottom
MX2007012334A (es) Metodo para llenar aparatos con solidos.
KR20110065374A (ko) 고체 촉매 물질을 튜브 구조 내에 혼합하고 적재하는 방법
JP3722621B2 (ja) 触媒充填機
CA1134122A (fr) Systeme de transfert de solides
CA1072303A (fr) Epandeur de matiere granuleuse
JPH039770B2 (fr)
US5311921A (en) Device for the continuous addition of casting auxiliaries onto the surface of a melt in a continuous-casting mold
US20040191136A1 (en) Method of loading a particulate solid into a vessel
AU2002314334A1 (en) Method of loading a particulate solid into a vessel
EP0390502A2 (fr) Appareillage pour la production de monocristaux de silicium
WO1998014392A1 (fr) Systeme et procede de chargement d'un reacteur catalytique
WO1998002238A1 (fr) Mecanisme de remplissage d'un reacteur a tubes
US4492497A (en) Apparatus and method for transferring solids
JPS602098B2 (ja) 粒状物の密充填配向装置
CZ290427B6 (cs) Zařízení pro provádění protiproudového procesu v reakční nádobě s pevným zrnitým materiálem
EP0013166A1 (fr) Tube vibratoire d'alimentation pour système de transfert de poudre

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2123125

Country of ref document: CA

122 Ep: pct application non-entry in european phase