WO1997038772A1 - Appareil permettant de separer un fluide en deux composants ou plus - Google Patents

Appareil permettant de separer un fluide en deux composants ou plus Download PDF

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Publication number
WO1997038772A1
WO1997038772A1 PCT/NL1997/000189 NL9700189W WO9738772A1 WO 1997038772 A1 WO1997038772 A1 WO 1997038772A1 NL 9700189 W NL9700189 W NL 9700189W WO 9738772 A1 WO9738772 A1 WO 9738772A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
bed
outlet
component
movable
Prior art date
Application number
PCT/NL1997/000189
Other languages
English (en)
Inventor
André Marcel DIEDEREN
Gerard Van Zee
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Priority to AU23102/97A priority Critical patent/AU2310297A/en
Publication of WO1997038772A1 publication Critical patent/WO1997038772A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/02—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor with moving adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
    • B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
    • B01D15/1892—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns the sorbent material moving as a whole, e.g. continuous annular chromatography, true moving beds

Definitions

  • the present invention relates to an apparatus for separating a fluid into at least two components, which apparatus comprises a static part and a movable part, the static part and the movable part defining a space having a circular cross section, the movable part being formed by a wheel, the wheel being equipped to rotate around its rota ⁇ tion axis with the aid of drive means, the rotation axis coinciding with the axis of the space, a portion of the space being provided with bed segments comprising sorbent material for the sorption of a component present in the fluid, the bed segments being separated from each other by wall elements extending substantially axially and sealing against a part, the apparatus is further provided with suc ⁇ cessively a first inlet for fluid, a first outlet for a first component, a second intake for eluent and a second outlet for a second component to be discharged by employing the eluent, the inlet and the nearest outlet being spaced such that there is always at least one wall element between the inlet and the nearest outlet
  • the disadvantage of the known apparatus is that it is complex and consequently expensive.
  • a further disadvan- tage of the known apparatus is that it is susceptible to trouble.
  • each wall element comprises a self-sealing valve allowing fluid moving toward the outlet to pass through, while obstructing fluid moving in the opposite direction.
  • the bed segments seal against a part which is movable in respect thereto. This prevents part of the fluid or the medium for the removal of the component separated out of the fluid from the bed segment, from flowing between the portion which is not provided with bed segments and the bed seg ⁇ ment, whereby it would only remain in the bed segment for a short time, namely during transition from one segment to the other.
  • the bed segments for the separation of fluid into components preferably comprise a component-sorbing fibre material.
  • a component-sorbing fibre material possesses numer ⁇ ous advantageous properties.
  • numer ⁇ ous advantageous properties In addition to having a low flow resistance it can also, compared with for instance granules, be retained extremely well in the bed segment.
  • the bed seg- ments for the separation of fluid into components comprise a component-sorbing foam with an open cell structure.
  • a bed segment may have a low flow resistance and in particular a simple structure so that it can easily be cut to size.
  • sorption means the separation of one or more components from a solution or homogenous mixture by means of selective absorption or retention by a solid substance (the sorbent) .
  • Fig. l is a schematic cross-section of the apparatus according to the invention.
  • Fig. 2 is an enlarged detail of Fig. l.
  • the apparatus according to the invention shown in Fig. 1 comprises a housing 1 having a circular chamber 2, which chamber is confined by a smooth inner wall 3 of the housing 1.
  • the chamber 2 comprises a wheel 4 which is rotatable around a rotation axis 5.
  • the axis of the circu ⁇ lar chamber 2 coincides with that of the wheel .
  • the wheel 4 is provided with side walls (not shown) which seal against the housing 1, and the wheel 4 together with the sealing side walls and the chamber 2 confine a space 6.
  • the space 6 comprises bed segments 7 (only one of which is shown in Fig. 1) which are separated from each other by wall elements 8 sealing against the inner wall 3 of the housing 1 (only one is shown in more detail) .
  • Each wall element 8 is provided with one or more valves 9, such as a non-return valve.
  • the valve 9 is self-sealing, that is to say the valve 9 will be sealed under the influence of a mechanical force, such as may be exerted by a spring, or by the pressure locally prevailing in the fluid.
  • the sorbent material of the bed segment 7 may be any material suitable for the purpose and may for instance take the form of granules.
  • a preferred form of sorbent material is fibres.
  • the bed segment 7 has a self-supporting structure. To prevent that sorbent material that has come loose from the bed seg ⁇ ment 7 disrupts the working of the valves 9, it is possible, for instance, to provide perforated elements (not shown) between the bed segment 7 and the valve 9.
  • the bed segment 7 is a foam having an open cell structure. Since the bed material does not come loose, perforated elements are superfluous.
  • the bed segments 7 seal against the inner wall 3 of the housing 1. This prevents fluid flowing over the sorbent material instead of through it.
  • a fibre material or a foam having an open cell structure because such material will often have pliant-resilient properties ensuring a good seal between bed segment 7 and inner wall 3. It is of course necessary to ensure that there is not too much friction.
  • a bed segment is pro ⁇ vided, at least at the side facing the part movable in relation to it, with a friction-reducing means, such as filter cloth.
  • a friction-reducing means such as filter cloth.
  • cross-linked PUR foam or silicone rubber may, for instance, be used.
  • Fig. 2 shows how a wall element 8 seals against the smooth inner wall 3 of a housing 1.
  • the side of the wall element 8 facing the inner wall 3 is provided with a groove 10.
  • a strip of elastic material 11 is introduced which is formed, for instance, from silicone rubber or EPDM rubber.
  • the strip 11 presses a sealing element 12 which is formed, for instance, from teflon, against the smooth inner wall 3.
  • the side walls (not shown) seal against the housing 1.
  • the apparatus is provided with a first inlet 13 for fluid to be separated into two or more components, a second inlet 16 for the supply of eluent by means of which compo ⁇ nent, which has been sorbed by the sorbent material of the bed segment 7, can be removed in order to regenerate the sorbent material, or, as in the case of chromatographic applications, be eluted, and with outlets 14, 15, for the first and second component respectively.
  • Supply and dis ⁇ charge may, if so desired, also take place via the axis of the wheel 4. If the component is a volatile organic chemi ⁇ cal such as toluene or oil, it is also possible to use steam to strip the sorbent material for regeneration.
  • the apparatus may possess still more inlets and outlets for possible additional treatment of the sorbent material, such as flushing and drying.
  • more inlets and outlets may be provided for fluid and eluent, thereby providing more separation runs over the circumfer ⁇ ence of the wheel.
  • the side walls of the apparatus constitute part of the wheel 6.
  • Such an apparatus can easily be up-scaled in axial direction.
  • the advantage of using one or more static side walls is that an adequate seal may be achieved with somewhat less effort.
  • each wall element to be provided with a valve
  • fewer wall elements may be provided with a valve as long as between an inlet and its nearest outlet at least one of the wall elements is provided with a valve.
  • a large part of the wall element is furnished with one or more valves.
  • Appropriate placement of the valves will result in the best possible flow profile, that is to say optimal uti ⁇ lization of the bed segment 7.
  • the inlets and outlets in the described embodiment are located on the same side, i.e. the circumference, it may for instance be favourable to place the valves nearer to the rotation axis in the wall elements.
  • the bed segments may be stationary and the openings rotating or vice versa, and even a combination is feasible. If the openings rotate, they are advantageously located on the side of the space near the rotation axis, because then less energy is required to carry out the rotation as, due to the surface being smaller, there is less friction.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

Cette invention concerne un appareil qui comprend une partie statique et une partie mobile, et qui permet de séparer un gaz ou un fluide en plusieurs composants. La partie mobile peut consister, par exemple, en une roue rotative (4) qui comporte des segments de lit sorbants (7). Ces segments de lit (7) sont séparés les uns des autres par des éléments parois (8) qui assurent l'étanchéité par rapport à la partie mobile. D'après cette invention, chaque élément paroi comprend un clapet d'étanchéité automatique (9).
PCT/NL1997/000189 1996-04-12 1997-04-14 Appareil permettant de separer un fluide en deux composants ou plus WO1997038772A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23102/97A AU2310297A (en) 1996-04-12 1997-04-14 Apparatus for separating a fluidum in at least two components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1002850 1996-04-12
NL1002850A NL1002850C2 (nl) 1996-04-12 1996-04-12 Inrichting voor het in ten minste twee componenten scheiden van een fluïdum.

Publications (1)

Publication Number Publication Date
WO1997038772A1 true WO1997038772A1 (fr) 1997-10-23

Family

ID=19762666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1997/000189 WO1997038772A1 (fr) 1996-04-12 1997-04-14 Appareil permettant de separer un fluide en deux composants ou plus

Country Status (3)

Country Link
AU (1) AU2310297A (fr)
NL (1) NL1002850C2 (fr)
WO (1) WO1997038772A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999059923A1 (fr) * 1998-05-19 1999-11-25 Manfred Holbach Dispositif et procede d'epuration des eaux usees

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399997A (fr) * 1963-07-01 1965-05-21 Nat Res Dev Appareil de mise en contact d'une phase fluide avec une phase particulaire
SU532049A1 (ru) * 1975-03-21 1976-10-15 Предприятие П/Я Р-6710 Устройство дл непрерывного двумерного хроматографического разделени смесей веществ
US5024749A (en) * 1990-04-20 1991-06-18 Westinghouse Electric Corp. System and method for continuous separation of isotopes
DE4326222C1 (de) * 1993-08-04 1995-03-09 Fraunhofer Ges Forschung Vorrichtung zur kontinuierlichen flüssigkeitschromatographischen Trennung eines Substanzgemisches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399997A (fr) * 1963-07-01 1965-05-21 Nat Res Dev Appareil de mise en contact d'une phase fluide avec une phase particulaire
SU532049A1 (ru) * 1975-03-21 1976-10-15 Предприятие П/Я Р-6710 Устройство дл непрерывного двумерного хроматографического разделени смесей веществ
US5024749A (en) * 1990-04-20 1991-06-18 Westinghouse Electric Corp. System and method for continuous separation of isotopes
DE4326222C1 (de) * 1993-08-04 1995-03-09 Fraunhofer Ges Forschung Vorrichtung zur kontinuierlichen flüssigkeitschromatographischen Trennung eines Substanzgemisches

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 7727, Derwent World Patents Index; AN 77-48434Y, XP002034305 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999059923A1 (fr) * 1998-05-19 1999-11-25 Manfred Holbach Dispositif et procede d'epuration des eaux usees

Also Published As

Publication number Publication date
NL1002850C2 (nl) 1997-10-15
AU2310297A (en) 1997-11-07

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