WO1990014159A1 - Materiel de nettoyage de pollution petroliere - Google Patents

Materiel de nettoyage de pollution petroliere Download PDF

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Publication number
WO1990014159A1
WO1990014159A1 PCT/CA1990/000166 CA9000166W WO9014159A1 WO 1990014159 A1 WO1990014159 A1 WO 1990014159A1 CA 9000166 W CA9000166 W CA 9000166W WO 9014159 A1 WO9014159 A1 WO 9014159A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
polyethylene
pieces
foam
water
Prior art date
Application number
PCT/CA1990/000166
Other languages
English (en)
Inventor
John E. Warrington
Erik B. Forsberg
Hillar Auksi
Original Assignee
Eco Corporation
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 Eco Corporation filed Critical Eco Corporation
Publication of WO1990014159A1 publication Critical patent/WO1990014159A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Definitions

  • This invention relates to an oil sorbing material, and processes for its manufacture and use. More particularly, it relates to a polyethylene based oil sorbing material particularly adapted for sorbing crude oil spilled on seawater.
  • the present invention provides polyethylene in web-like, mesh form, prepared by compacting foamed polyethylene pieces, substantially to destroy the typically closed cell foam structure, and then shredding it. It exhibits a microcavernous network structure.
  • the material need contain no sorption additives, binders, sealants or the like so that it is extremely inexpensive.
  • it can be prepared from very inexpensive starting materials, including scrap foam polyethylene, which is made in enormous quantities for use in packaging. Huge quantities of off-cuts of these materials are currently being discarded and used as landfill, creating serious disposal problems.
  • the process for preparation of the materials according to the invention is simple and economical to conduct, and can be run continuously and at high speed.
  • the microcavernous structure of the crushed, shredded foam material of the present invention is likely to be largely responsible for the oil sorptive properties thereof.
  • the materials of the invention are made up of thin section polyethylene pieces, or flakes, of a thickness consistent with those normally encountered in cell wall thicknesses of closed cell polyethylene, exhibiting microcaverns of a diameter and depth no bigger than the cell sizes commonly encountered in closed pell polyethylene foams.
  • the openings of the microcaverns are 0.01-2.5 mm in size, and the depths of them are essentially similar.
  • FIGURE 2C is a microphotograph of a section through a piece of shredded, crushed, foamed polyethylene according to the invention, at a magnification of 20 times;
  • FIGURE 3 is a graphical presentation of the results of Example 2 given below;
  • irregularly shaped lumps 10 of polyethylene closed cell foam are fed to a chopper 12 in which they encounter rotary cutting elements 14 adjusted to cut and chop the lumps 10 into convenient small-sized pieces 16, suitably of size about 0.5 inches (12.7 mm).
  • the pieces 16 are then fed by conveyor 18 into a compactor 20 in which the pieces 16 are subjected to a relatively severe compaction process by passage through the nip between press rollers 22.
  • the separation between the rollers 22, and the load which can be applied to them, is adjustable.
  • the pieces 16 are compacted to such an extent that substantially all the cells therein are broken open and the cellular foam structure is effectively totally destroyed. All surfaces of the material, including those formerly comprising inner cell surfaces, are then available for liquid contact.
  • the material, in compacted piece form, is fed by conveyor 24 into a shredder 26 where it encounters rotary blades 28 which shred the compacted pieces into a web-like material 30.
  • the material 30 is then packaged using conventional means, ready for shipping to the oil spill location.
  • the material 30 has a generally fluffy, flaky appearance, similar to that of light, fluffy snow.
  • each piece On closer examination under magnification, each piece is seen to be microcavernous network but in the form of an interconnected fibrous web-like irregular lace, rather than individual fibres. It is soft and somewhat resilient to the touch. The remnants of cells can be observed, but as microcaverns in the polyethylene pieces. No intact closed cells are observable even under magnification.
  • the material absorbs both light oil and heavy oils.
  • These heavy oils include crude unrefined oils of the type spilled as a result of oil tanker accidents at sea, bunker C oil, diesel oils, motor lubricating oils and even contaminated sump oils, of the type which might be discharged from a marine engine after use.
  • the materials will absorb many times their own weight of any of these hydrocarbons, i.e. up to 25 times their own weight, in a matter of minutes.
  • Sorbent of the invention 11.4 + 0.8 15.5 + 0.5 20.0 + 0.4
  • mice Twelve mice (six male and six female) having a body weight in the range 20-30 g were divided into two groups of six mice each and allowed a seven day acclimatization period. One group was assigned as a Test (cleaned up) Group while the other was assigned as a Control (noncleaned) Group.
  • Plastic containers 26 cm x 20 cm x 15 cm) with a surface area of 520 cm 2 were filled with water at 20-22°C. 104 g (0.2 g/cm 2 surface) of crude oil was spilled over the surface of water in the containers.
  • mice in the Control Group exhibited initially slight body weight loss, and some animals display toxic symptoms such as apathy, petosis, hunched back and cachexia.
  • mice in the Control Group developed alopecia which progressed during the study into severe alopecia and hyperkeratosis.
  • a number of the mice in the Control Group were completely hairless.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Public Health (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Un matériel de nettoyage de pollution pétrolière apte à la sorption de l'huile dans l'eau, en particulier le brut dans l'eau de mer, comprend une mousse polyéthylène hachée et comprimée, et ensuite déchiquetée de manière à ressembler à un tissu en maille, et présentant une structure, fortement poreuse, en réseau microcaverneux. On peut réaliser ledit matériel à partir de déchets de mousse polyéthylène ou d'une mousse polyéthylène préparée à partir de polyéthylène vierge ou recyclé, en hachant et en comprimant ladite mousse polyéthylène afin de détruire sa structure, et en déchiquetant ensuite les morceaux de mousse ainsi obtenus.
PCT/CA1990/000166 1989-05-23 1990-05-22 Materiel de nettoyage de pollution petroliere WO1990014159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA600404 1989-05-23
CA600,404 1989-05-23

Publications (1)

Publication Number Publication Date
WO1990014159A1 true WO1990014159A1 (fr) 1990-11-29

Family

ID=4140087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1990/000166 WO1990014159A1 (fr) 1989-05-23 1990-05-22 Materiel de nettoyage de pollution petroliere

Country Status (2)

Country Link
AU (1) AU5633790A (fr)
WO (1) WO1990014159A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320908A1 (de) * 1993-06-18 1994-12-22 Siegmund Piotrowski Ölbindemittel
DE4325879A1 (de) * 1993-08-02 1995-02-09 Hoechst Ag Formgebilde aus einem thermoplastischen Kunststoff, Verfahren zu seiner Herstellung sowie seine Verwendung
US6177036B1 (en) 1995-10-13 2001-01-23 Hoechst Aktiengesellschaft Process for formed article production by extrusion
WO2002042017A1 (fr) * 2000-11-23 2002-05-30 Patrice Stengel Particules adsorbantes, procede de preparation et procede de traitement des sols pollues par les hydrocarbures a l'aide desdites particules
US6583193B2 (en) 2000-03-17 2003-06-24 Dow Global Technologies Inc. Polyolefin foam useful for sound and thermal insulation
US6590006B2 (en) 2000-03-17 2003-07-08 Dow Global Technologies Inc. Macrocellular polyolefin foam having a high service temperature for acoustical applications
US6720362B1 (en) 1998-09-17 2004-04-13 The Dow Chemical Company Perforated foams
US7018700B2 (en) 2000-03-17 2006-03-28 Dow Global Technologies Inc. Acoustic absorption polymer foam having improved thermal insulating performance
US20160137925A1 (en) * 2014-11-13 2016-05-19 Abtech Industries, Inc. Process for Recycling Oil-Sorbing Polymeric Media
EP4157798A4 (fr) * 2020-05-29 2024-01-03 Recoil Oil Recovery Pty Ltd Matériau et procédé de remédiation d'un site contaminé par un déversement d'huile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039414A (en) * 1989-08-01 1991-08-13 Mueller Marc B Process for separating and/or recovering hydrocarbon oils from water using biodegradable absorbent sponges

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146192A (en) * 1962-01-24 1964-08-25 Exxon Research Engineering Co Selective separation of oil from water
DE1629775A1 (de) * 1965-10-28 1971-10-28 Wanner Ag Verfahren zur Herstellung eines Mittels zur Adsorption von OElen und verwandten Fluessigkeiten,sowie nach diesem Verfahren hergestelltes Erzeugnis
GB1504300A (en) * 1973-11-29 1978-03-15 Jacobs W Method and apparatus for the removal of pollutants
US4183984A (en) * 1977-10-27 1980-01-15 Conwed Corporation Oil sorbent material made by opening cells of a closed cell foam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146192A (en) * 1962-01-24 1964-08-25 Exxon Research Engineering Co Selective separation of oil from water
DE1629775A1 (de) * 1965-10-28 1971-10-28 Wanner Ag Verfahren zur Herstellung eines Mittels zur Adsorption von OElen und verwandten Fluessigkeiten,sowie nach diesem Verfahren hergestelltes Erzeugnis
GB1504300A (en) * 1973-11-29 1978-03-15 Jacobs W Method and apparatus for the removal of pollutants
US4183984A (en) * 1977-10-27 1980-01-15 Conwed Corporation Oil sorbent material made by opening cells of a closed cell foam

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320908A1 (de) * 1993-06-18 1994-12-22 Siegmund Piotrowski Ölbindemittel
DE4325879A1 (de) * 1993-08-02 1995-02-09 Hoechst Ag Formgebilde aus einem thermoplastischen Kunststoff, Verfahren zu seiner Herstellung sowie seine Verwendung
EP0642907A2 (fr) * 1993-08-02 1995-03-15 Hoechst Aktiengesellschaft Structure thermoplastique, procédé de production et utilisation
EP0642907A3 (fr) * 1993-08-02 1995-05-17 Hoechst Ag Structure thermoplastique, procédé de production et utilisation.
US5618853A (en) * 1993-08-02 1997-04-08 Hoechst Aktiengesellschaft Molded structure comprising a thermoplastic, process for its production and its use
DE4325879C3 (de) * 1993-08-02 1999-05-20 Depron Bv Folie aus einem thermoplastischen Kunststoffschaum, Verfahren zu ihrer Herstellung sowie ihre Verwendung
US6177036B1 (en) 1995-10-13 2001-01-23 Hoechst Aktiengesellschaft Process for formed article production by extrusion
US6949588B2 (en) 1998-09-17 2005-09-27 Dow Global Technologies Inc. Perforated foams
US6720362B1 (en) 1998-09-17 2004-04-13 The Dow Chemical Company Perforated foams
US6583193B2 (en) 2000-03-17 2003-06-24 Dow Global Technologies Inc. Polyolefin foam useful for sound and thermal insulation
US6590006B2 (en) 2000-03-17 2003-07-08 Dow Global Technologies Inc. Macrocellular polyolefin foam having a high service temperature for acoustical applications
US7018700B2 (en) 2000-03-17 2006-03-28 Dow Global Technologies Inc. Acoustic absorption polymer foam having improved thermal insulating performance
US6860679B2 (en) 2000-11-23 2005-03-01 Patrice Stengel Adsorbent particles preparation method and treatment of soils polluted by hydrocarbons using said particles
WO2002042017A1 (fr) * 2000-11-23 2002-05-30 Patrice Stengel Particules adsorbantes, procede de preparation et procede de traitement des sols pollues par les hydrocarbures a l'aide desdites particules
US20160137925A1 (en) * 2014-11-13 2016-05-19 Abtech Industries, Inc. Process for Recycling Oil-Sorbing Polymeric Media
US9909069B2 (en) * 2014-11-13 2018-03-06 Abtech Industries, Inc. Process for recycling oil-sorbing polymeric media
EP4157798A4 (fr) * 2020-05-29 2024-01-03 Recoil Oil Recovery Pty Ltd Matériau et procédé de remédiation d'un site contaminé par un déversement d'huile

Also Published As

Publication number Publication date
AU5633790A (en) 1990-12-18

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