WO2010096841A1 - Matériau d'emballage - Google Patents

Matériau d'emballage Download PDF

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Publication number
WO2010096841A1
WO2010096841A1 PCT/ZA2009/000014 ZA2009000014W WO2010096841A1 WO 2010096841 A1 WO2010096841 A1 WO 2010096841A1 ZA 2009000014 W ZA2009000014 W ZA 2009000014W WO 2010096841 A1 WO2010096841 A1 WO 2010096841A1
Authority
WO
WIPO (PCT)
Prior art keywords
packing material
material unit
sphere
channels
unit
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.)
Ceased
Application number
PCT/ZA2009/000014
Other languages
English (en)
Inventor
Martin Christiaan Beyers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE112009004246T priority Critical patent/DE112009004246T5/de
Priority to PCT/ZA2009/000014 priority patent/WO2010096841A1/fr
Priority to CN2009801580406A priority patent/CN102405100A/zh
Publication of WO2010096841A1 publication Critical patent/WO2010096841A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30207—Sphere
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/304—Composition or microstructure of the elements
    • B01J2219/30416—Ceramic

Definitions

  • This invention relates to packing material for use in high temperature fluid flow applications.
  • Packing material includes support and filler material.
  • the functions of the packing material are generally to provide support for catalysts used in various chemical conversion reactions wherein the reagents are in a gaseous state and to increase reagent contact, mixing and it is also used for catalyst dilution.
  • catalyst support a high surface area may be important and structural strength is a requirement.
  • gas mixing and chemical reagent contact the number, direction changes and diameter of the tortuous flow paths are important factors.
  • a packing material unit for use in high temperature fluid flow applications which unit is generally spherically shaped with at least one formation defined in the volume of the sphere, and which is manufactured from ceramic material which is selected from material which retains its structural integrity in temperatures of at least 800°C with maximum temperatures ranging to about 1700 "C.
  • the formation may be selected from a channel or an open ended hollow which extends through the volume of the sphere, or both. It will be appreciated that the formations increase the surface area of the unit and provides additional flow paths for flowing fluids, in use.
  • the unit may include a plurality of formations defined therein of which one is an open ended hollow which extends through the volume of the sphere with the remainder of the formations being at least two channels.
  • the channels may intersect with the open ended hollow to provide fluid flow access to the inside of the sphere, an intersecting channel.
  • the channels may be configured not to intersect with the open ended hollow to provide fluid flow access through the generally outer perimeter of the sphere, a non intersecting channel.
  • the unit may include a plurality of formations defined therein of which one is an open ended hollow which extends through the volume of the sphere with the remainder of the formations being at least one intersecting channel and one being a non intersecting channel.
  • the unit may include respective pairs of intersecting channels and non intersecting channels.
  • One or more, preferably all, channels may be arranged in parallel.
  • the ceramic material may be selected from ceramics which can retain its structural integrity in temperatures of up to 1700°C.
  • the ceramic material may be selected from ceramics which is inert up to temperatures of up to 170CTC.
  • the ceramic material may be selected from ceramics from which minerals do not leach into its surroundings, in use, up to temperatures of 1700 0 C.
  • the ceramic material may a high alumina (AI 2 O 3 ) content, preferably above 70%, more preferably above 99% and which is sintered above a temperature of 1600 ° C.
  • Other high melting, stable oxide ceramics such as Zirconia (ZrO 2 ), Magnesia (MgO) and Spinell will also find application within the invention.
  • Non-oxide ceramics such as certain variations of recrystallized Silicon Carbide (SiC) may be used de pending on the atmosphere in the reformer / catalyst stack as well as the chemical stability thereof.
  • LINE-OX ® Hollow spheres made from LINE-OX ® 72 to LINE-OX ® 99 materials, are manufactured by means of a centreless casting technique, developed in-house by the applicant and utilizing different materials ranging from polished brass and aluminium to plaster of paris.
  • This technique may include the steps:
  • Materials range from 72 % Alumina to >99.7 % Alumina.
  • the alumina being a high temperature oxide ceramic material.
  • Other materials covered by the scope of the invention are LINE-OX ® Mullite, Corundum, Zirconium and composites thereof.
  • LINE-OX ® Semi-solid spheres made in coarse - grained materials such as LINE-OX ® SAS 1600 , are manufactured by means of a vibratory casting technique utilizing different materials ranging from polished brass and aluminium to plaster of paris, or a semi-wet or dry pressing technique, utilizing steel tooling / moulds and hydraulic or mechanical presses. There are variations of the semi-solid sphere, depending on the application. Larger spheres with slots are used at the exit side of the stack, giving support. Smaller diameter semi-solid spheres are dispersed.
  • This technique may include the steps:
  • LINE-OX ® Semi-solid spheres material composition Materials used are blended from a wide range of particle sizes. Highly calcined alumina types such as Tabular Alumina, in grain sizes ranging from 6 mm down to 2 micron are utilized the relative proportions of each particle size being dependent on the required density, flow properties and final application requirements (e.g. improvement of hardness, thermal shock resistance, chemical corrosion resistance etc.)
  • packing material in accordance with the invention to aerate the catalyst bed itself.
  • Hollow spheres are placed in the catalyst area to ensure that sedimentation of debris from upstream processes do not block off gas flow through the catalyst completely.
  • Differently orientated slots and holes also ensure proper mixing and agitation of gases to optimise contact area with surrounding catalyst.
  • Figure 1 shows a side view of a first embodiment of packing material unit, in accordance with the invention
  • Figure 2 shows a sectional plan view of the first embodiment of packing material unit
  • Figure 3 shows a side view of a second embodiment of packing material unit, in accordance with the invention
  • Figure 4 shows a sectional plan view through A-B of the second embodiment of packing material unit
  • Figure 5 shows a plan view of a third embodiment of packing material unit, in accordance with the invention.
  • Figure 6 shows a perspective view of the third embodiment of packing material unit.
  • the packing material unit in accordance with the invention, is generally indicated by reference numeral 10.
  • the unit of packing material shown in figures 1 and 2 for use in high temperature fluid flow applications is manufactured from 90% alumina (AI2O 3 ) ceramic material which retains its structural integrity at temperatures up to 1600 °C.
  • the unit 10 which is generally spherically shaped with one open ended hollow 12 formation with a constant bore defined in the volume of the sphere and six parallel channels 14, which do not intersect with the hollow formation.
  • the radius of the sphere in this example is 40mm
  • the radius of the bore of the hollow 12 is 7.5mm with the width of the channel being 6mm.
  • the sphere is further provided with a flat surface 16 perpendicular to the hollow with a diameter of 40mm.
  • the sides of the channels are rounded to help resist attrition.
  • the unit of packing material shown in figures 3 and 4 for use in high temperature fluid flow applications is manufactured from 99% alumina (AI 2 O 3 ) ceramic material which retains its structural integrity at temperatures up to 1700 °C.
  • the unit 10 which is generally spherically shaped with a generally constant wall thickness of 5mm and with one open ended hollow 12 formation defined in the volume of the sphere and eight parallel channels 14., of which four channels 14.1 intersect with the hollow 12 and four channels 14.2 which do not intersect with the hollow formation.
  • the width of the non intersecting channels is 5mm and the inner width of the non intersecting channels is 5mm with the outer width being 7.95.
  • These hollow sphere units 10 are made from LINE-OX ® 99 materials, are manufactured by means of a centreless casting technique, developed in- house by the applicant and utilizing different materials ranging from polished brass and aluminium to plaster of paris.
  • This technique includes the steps:
  • Hollow spheres material composition comprises 99% Alumina, the alumina being a high temperature oxide ceramic material.
  • the unit of packing material shown in figures 5 and 6 for use in high temperature fluid flow applications is manufactured from 99% alumina (AI 2 O 3 ) ceramic material which retains its structural integrity at temperatures up to 1700 °C.
  • the unit 10 which is generally spherically shaped with three open ended constant bore hollow 12 formations defined in the volume of the sphere.
  • the diameter of the sphere is 45mm.
  • the diameter of the respective bores is 4, 10 and 20 mm.
  • Each hollow is perpendicular to the other two hollows and intersects each other at the centre point of the sphere.
  • the semi-solid sphere units shown in Figure 1 , 2 5 and 6 are manufactured from a coarse grained materials such as LINE-OX ® SAS 1600, by means of a vibratory casting technique utilizing different materials ranging from polished brass and aluminium to plaster of paris.
  • a coarse grained materials such as LINE-OX ® SAS 1600
  • This technique includes the steps:
  • LINE-OX ® Semi-solid spheres material composition comprises a blend from a wide range of particle sizes. Highly calcined alumina, Tabular Alumina, in grain sizes ranging from 6 mm down to 2 micron are utilized the relative proportions of each particle size being dependent on the required density, flow properties and final application requirements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

L'invention concerne une unité de matériau d'emballage destinée à être utilisée dans des applications d'écoulement de fluide à haute température. L'unité a une forme généralement sphérique avec au moins une formation définie dans le volume de la sphère, et qui est fabriquée dans un matériau céramique qui est choisi parmi des matériaux qui conservent leur intégrité structurale à des températures d'au moins 800 °C avec des températures maximales de l'ordre d'environ 1700 °C. Les formations peuvent être choisies parmi un canal ou une cavité à extrémité ouverte qui s'étend à travers le volume de la sphère, ou les deux.
PCT/ZA2009/000014 2009-02-20 2009-02-20 Matériau d'emballage Ceased WO2010096841A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112009004246T DE112009004246T5 (de) 2009-02-20 2009-02-20 Packungsmaterial
PCT/ZA2009/000014 WO2010096841A1 (fr) 2009-02-20 2009-02-20 Matériau d'emballage
CN2009801580406A CN102405100A (zh) 2009-02-20 2009-02-20 填充材料

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ZA2009/000014 WO2010096841A1 (fr) 2009-02-20 2009-02-20 Matériau d'emballage

Publications (1)

Publication Number Publication Date
WO2010096841A1 true WO2010096841A1 (fr) 2010-08-26

Family

ID=42634258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2009/000014 Ceased WO2010096841A1 (fr) 2009-02-20 2009-02-20 Matériau d'emballage

Country Status (3)

Country Link
CN (1) CN102405100A (fr)
DE (1) DE112009004246T5 (fr)
WO (1) WO2010096841A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018161265A1 (fr) * 2017-03-07 2018-09-13 深圳市佩成科技有限责任公司 Bille de bio-céramique creuse et son procédé de fabrication et son dispositif de formation

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113810A (en) * 1976-07-02 1978-09-12 Tokyo Special Wire Netting Co., Ltd. Distillation column packing
US4581299A (en) * 1984-01-16 1986-04-08 Jaeger Rolf A Blank for the manufacture of spherical filling bodies
US4599321A (en) * 1985-01-15 1986-07-08 Chevron Research Company Process for the manufacture of spherical bodies by selective agglomeration
US4836994A (en) * 1984-12-18 1989-06-06 Kanto Kagaku Kabushiki Kaisha Calcium-phosphorus-apatite having novel properties and process for preparing the same
US4902666A (en) * 1986-07-02 1990-02-20 Chevron Research Company Process for the manufacture of spheroidal bodies by selective agglomeration
US6547222B2 (en) * 1999-08-17 2003-04-15 Koch Knight, Llc Packing element
US6852227B1 (en) * 2004-04-29 2005-02-08 Jrj Holdings, Llc Flow-through media
US20070182035A1 (en) * 2006-02-03 2007-08-09 Kavolik Joseph R Jr Spherical heat and mass transfer media

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113810A (en) * 1976-07-02 1978-09-12 Tokyo Special Wire Netting Co., Ltd. Distillation column packing
US4581299A (en) * 1984-01-16 1986-04-08 Jaeger Rolf A Blank for the manufacture of spherical filling bodies
US4836994A (en) * 1984-12-18 1989-06-06 Kanto Kagaku Kabushiki Kaisha Calcium-phosphorus-apatite having novel properties and process for preparing the same
US4599321A (en) * 1985-01-15 1986-07-08 Chevron Research Company Process for the manufacture of spherical bodies by selective agglomeration
US4902666A (en) * 1986-07-02 1990-02-20 Chevron Research Company Process for the manufacture of spheroidal bodies by selective agglomeration
US6547222B2 (en) * 1999-08-17 2003-04-15 Koch Knight, Llc Packing element
US6852227B1 (en) * 2004-04-29 2005-02-08 Jrj Holdings, Llc Flow-through media
US20070182035A1 (en) * 2006-02-03 2007-08-09 Kavolik Joseph R Jr Spherical heat and mass transfer media

Also Published As

Publication number Publication date
DE112009004246T5 (de) 2012-02-23
CN102405100A (zh) 2012-04-04

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