CZ2011255A3 - Filtration and/or sorption element - Google Patents

Filtration and/or sorption element Download PDF

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Publication number
CZ2011255A3
CZ2011255A3 CZ20110255A CZ2011255A CZ2011255A3 CZ 2011255 A3 CZ2011255 A3 CZ 2011255A3 CZ 20110255 A CZ20110255 A CZ 20110255A CZ 2011255 A CZ2011255 A CZ 2011255A CZ 2011255 A3 CZ2011255 A3 CZ 2011255A3
Authority
CZ
Czechia
Prior art keywords
fabric
characterized
member according
sorption member
filtering
Prior art date
Application number
CZ20110255A
Other languages
Czech (cs)
Other versions
CZ303268B6 (en
Inventor
Jirsák@Oldrich
Sanetrník@Filip
Šaroch@Jan
Original Assignee
Royal Natural Medicine, S.R.O.
Technická univerzita v Liberci
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 Royal Natural Medicine, S.R.O., Technická univerzita v Liberci filed Critical Royal Natural Medicine, S.R.O.
Priority to CZ20110255A priority Critical patent/CZ2011255A3/en
Publication of CZ2011255A3 publication Critical patent/CZ2011255A3/en
Publication of CZ303268B6 publication Critical patent/CZ303268B6/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28028Particles immobilised within fibres or filaments
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D9/00Composition of chemical substances for use in breathing apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2805Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0407Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25Coated, impregnated or composite adsorbents

Abstract

A filtering and / or sorption member containing a carbon sorbent that is dispersed in the inter-fibrous compartment of a bulky fabric formed of an intimate fiber mixture of staple base fibers (1) and bicomponent fibers (2) through which the staple fibers (1) of the bulk fabric are interconnected and maintained Some of the carbon sorbent particles are also partially fixed by the bicomponent fibers (2), and the voluminous fabric is enclosed in a container (4) comprising a nanofiber layer (42) arranged between two protective fabric layers (41).

Description

Filtering and / or sorption member

Technical field

The present invention relates to a filtering and / or sorption member comprising a carbon sorbent. * *

Background Art

Carbon sorbents are used to eliminate oil spills from the water surface and both free-flowing carbon sorbent to the surface and carbon sorbent 10 deposited with absorbent sleeves or sorption plates made of geotextiles are used. The fine structure gives the carbon sorbent a high specific surface area and the associated adsorption properties used in adsorption columns for gas and contaminated water treatment, in the protection of technological reservoirs and water reservoirs against the penetration of oils, fuels and other hydrocarbons, to anchor dangerous substances for removal hydrocarbons and their derivatives and other similar purposes.

In particular, the disadvantage is that the carbon sorbent is difficult to handle, since the filled bags, sleeves and other formations do not have dimensional stability, since the finely divided sorbent behaves as a liquid. In addition, as a result of mechanical action, the carbon sorbent disintegrates into fine particles that cannot be maintained by the conventional packaging material to prevent it from penetrating and permanently soiling everything in its surroundings. The object of the invention is to reduce or eliminate the drawbacks of the prior art.

Podstata wnátezu

This object is achieved by a filtering and / or sorption member according to the invention, the principle of which is that the carbon sorbent is dispersed in the inter-fibrous spaces of a bulky fabric formed of an intimate fiber blend of staple fibers and bicomponent fibers, which are staple fibers of bulky fabric some carbonaceous sorbent particles are partially fixed by the bicomponent - 2 - PS3740CZ - fibers, the bulky fabric being enclosed in a package containing a layer of nanofibers arranged between two layers of the protective fabric. The nanofibrous layer-containing package prevents the penetration of carbon sorbent particles out of the package, so that the surrounding of the filter and / or sorption member is not stained during handling, but at the same time permits access to the liquid or gaseous material to be cleaned. Positioning the carbon sorbent in the inter-fibrous spaces of the bulk fabric and at least partially fixing them to the bicomponent fibers of such fabric ensures a uniform distribution of the carbon sorbent in the fabric throughout its lifetime and thus the uniform efficiency of the filter and / or sorption member of the invention.

It is preferred that the carbonaceous sorbent is a carbonaceous composite, which preferably comprises synthetic carbon black with a specific surface area of 20 to 1500 m 2 / g.

The amount of carbonaceous sorbent and / or carbonaceous composite and / or 15! synthetic carbon black is up to 50% vol. With this volume, the properties of the bulky fabric remain and the properties of the carbon sorbent, carbonaceous composite or synthetic carbon black are well applicable.

The bulk fabric of the filter and / or sorption member of the invention may be formed by aerodynamic molding from a blend of base and bicomponent fibers, fibers, or carding of a blend of base and bicomponent fibers followed by lateral fiber web laying and hot air bonding, or carding of blends of base and bicomponent fibers with followed by perpendicular laying of fiber web and hot-air bonding.

The protective fabric is preferably a bicomponent spun-bond. This makes it possible to achieve high mechanical properties of the nanofibrous layer package and at the same time simplifies the possibility of bonding the package by means of heat and pressure. BRIEF DESCRIPTION OF THE DRAWINGS Exemplary embodiments of a filter and / or sorption member according to the invention are shown schematically in the accompanying drawings, in which: FIG. 1 is a sectional view of a filter and / or sorption member with a bulky fabric formed by the perpendicular laying of the fiber web; FIG. 2 is a sectional view of a bulking and / or sorbent filtering member formed by aerodynamic molding of a blend of base and bicomponent fibers; and FIG. 3 is a view of a base fiber and a bicomponent fiber. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic material for producing the filtering and / or sorption member according to the invention is a bulky fabric consisting of staple fibers I, for example polypropylene, and bicomponent fibers 2 having a polypropylene core 21 and a polyethylene sheath 22. Melting point polyethylene the sheath 22 of the bicomponent fibers 2 is lower (120 ° C) than the melting point of the core 21 and the melting temperature 15 of the base fibers 1 of polypropylene (165 ° C). The ratio of base fiber 1 to bicomponent fibers 2 in the bulk fabric mix ranges from 80:20 to 50:50, but theoretically only bicomponent fibers 2 can be used. The larger the bicomponent fiber content 2, the better the bonding is fibers in a bulky fabric. Fibers from other materials can also be used in the bulky fabric, however, the lower melting temperature of the bicomponent fiber jacket 22 than the melting point of the bicomponent fiber core 21 and the melting temperature of the base fibers T must be maintained. in the mixture first thoroughly mixed, usually in a carding machine, into a very even, so-called intimate fiber mixture. Subsequently, the position of the fibers is fixed by melting the bicomponent fiber jacket 22 25 and subsequently joining the bicomponent fiber 2 to the surrounding base fibers. The fiber proportion in the total volume of the bulk fabric is from 1 to 5% by volume, typically 2 to 3% by volume, the rest being inter-fiber spaces. ~ 4 " PS3740CZ—

According to the invention, the carbonaceous sorbent is a carbonaceous composite, which is carbon particles aggregated into chains or clusters, with carbon black being the preferred representative of carbonaceous composites.

Generally, the most important feature of synthetic carbon black is its 5 > primary particles and the associated surface area. The primary particles have a spherical shape and their size ranges from 2 to 100 nm, the smaller the primary particles, the larger their surface area ranges from 20 to 1500 m 2 / g. Another important characteristic of carbon black is its structure and size of aggregates. The size and complexity of the aggregate structure is determined by the number of spherical primary soot particles that cluster during the manufacturing process into branched chains with many secondary spaces in the aggregate.

The carbon fiber sorbent or carbonaceous composite or synthetic carbon black 3 is conveyed to some of the known bulk materials, such as by shaking the carbonaceous sorbent or carbon-carbon composite or synthetic carbon black 3, onto the bulk fabric, or the particles into the inter-fibrous spaces are blown by a purge applicator. otherwise, it is used to apply a thermoplastic binder powder, or the particles are introduced into the bulk fabric by its aerodynamic molding of a blend of base fibers and bicomponent fibers 2, through which the hot air passes through a bulky 20l fabric and the bicomponent fiber sheaths 22 are melted into the air. introduces particles of carbonaceous sorbent or carbonaceous composite or synthetic carbon black 3 by hot air that is introduced into the inter-fiber compartments of the bulk fabric. Particles of carbon sorbent or carbon composite or synthetic carbon black 3 are introduced into the inter-fibrous compartments of the bulk fabric by $ 2 in an amount of up to 50% by volume. Although the incorporation of a greater amount of carbonaceous sorbent or carbonaceous composite or synthetic carbon black 3 is not excluded, but the filtering and / or sorption member with increasing amounts of carbon sorbent or carbonaceous composite or synthetic carbon black 3 loses the character of the fabric, but in particular the sorption ability of the member increases. In the case of a bulky fabric or a spider web that is supposed to form it, when introducing or after introducing carbonaceous particles «4« 4 «4 I 1 l 4 4 4 t IA * t I 4 '• 4« · * * * · The sorbent or carbonaceous composite or synthetic carbon black 3 is heated above the melting temperature of the bicomponent fiber jacket 22, at least some of these particles are fixed on the bicomponent fibers 2. Other carbon sorbent particles or The carbonaceous composite or the synthetic carbon black 3 is embedded in the inter-fibrous spaces of the bulk fabric.

The bulk fabric containing carbonaceous sorbent particles or carbonaceous composite or synthetic carbon black 3 is then cut into pieces of the desired size, which overlap on all sides with the shell 4, which contains a layer of nanofibres 42 arranged between the two protective layers 4J. fabric, which is preferably a bicomponent spun-bond and which provides the mechanical properties of the package. The casing 4 is joined at the edges of the product, for example by welding or gluing. The nanofibrous layer 42 inside the package prevents particles of carbon sorbent or carbonaceous composite or synthetic carbon black 3 from escaping from the package 4, so that the surrounding of the filtering and / or sorption member does not become dirty while handling it while allowing purified gaseous or liquid material to be accessed into the interior of the container 4 and passing it through a bulky fabric containing particles of carbon sorbent or carbon composite or synthetic carbon black 3.

In addition to the aerodynamic formation of a mixture of basic and bicomponent fibers, the bulk fabric of the filtering and / or sorption member can also be formed by carding a blend of basic and bicomponent fibers followed by lateral laying of the fiber web and hot-air bonding or carding of a blend of base and bicomponent fibers followed by perpendicular fibrous laying. cobwebs and hot-air bonding as shown in FIG. 1. 25 Industrial usability

The filtering and / or sorption member according to the invention can be used, for example, as a surface filter in air conditioning units, or as a filter element for personal protection, whether in protective masks, masks or respirators, as a sorption element for trapping dangerous or undesirable substances from water or air . 30.

Claims (8)

  1. " '? 6 -
    PS3740GZ - PATENT CLAIMS 1. A carbon sorbent containing filter and / or sorption member, characterized in that the carbonaceous sorbent is dispersed in the inter-fibrous compartments of a bulky fabric formed from an intimate fiber blend of staple fibers (1) and bicomponent fibers (2) by which the staple fibers (1) of the bulk fabric are interconnected and held in position, and some carbon sorbent particles are partially fixed by the bicomponent fibers (2), the voluminous fabric being enclosed in the container (4) containing the nanofiber layer (42) arranged between (Two layers (41) of protective fabric).
  2. 2. Filter and / or sorption member according to claim 1, characterized in that the carbonaceous sorbent is a carbonaceous composite.
  3. 3. Filter and / or sorption member according to claim 2, characterized in that the carbonaceous composite is composed of synthetic carbon black and has a specific surface area of 20 to 1500 < 5 >
  4. Filtering and / or sorption member according to any one of claims 1 to 3, characterized in that the amount of carbon sorbent or carbonaceous composite or synthetic carbon black is up to 50% by volume of a voluminous fabric.
  5. A filtering and / or sorption member according to any one of claims 1 to 4, 20, characterized in that the bulk fabric is formed by aerodynamic molding of a blend of base and bicomponent fibers.
  6. Filtering and / or sorption member according to any one of Claims 1 to 4, characterized in that the bulk fabric is formed by carding a blend of basic and bicomponent fibers followed by lateral laying of the fiber web and 2 $ by hot-air bonding. P & 37406Z-- -7
  7. Filtering and / or sorption member according to any one of claims 1 to 4, characterized in that the bulk fabric is formed by carding a blend of base and bicomponent fibers followed by perpendicular laying of the fiber web and hot-air bonding.
  8. Filtering and / or sorption member according to any one of the preceding claims, characterized in that the protective fabric (41) of the container (4) is a bicomponent spun-bond.
CZ20110255A 2011-05-02 2011-05-02 Filtration and/or sorption element CZ2011255A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CZ20110255A CZ2011255A3 (en) 2011-05-02 2011-05-02 Filtration and/or sorption element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20110255A CZ2011255A3 (en) 2011-05-02 2011-05-02 Filtration and/or sorption element
PCT/CZ2011/000074 WO2012149914A1 (en) 2011-05-02 2011-08-02 Means of filtration and/or sorption

Publications (2)

Publication Number Publication Date
CZ2011255A3 true CZ2011255A3 (en) 2012-07-04
CZ303268B6 CZ303268B6 (en) 2012-07-04

Family

ID=44946901

Family Applications (1)

Application Number Title Priority Date Filing Date
CZ20110255A CZ2011255A3 (en) 2011-05-02 2011-05-02 Filtration and/or sorption element

Country Status (2)

Country Link
CZ (1) CZ2011255A3 (en)
WO (1) WO2012149914A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69316027D1 (en) * 1992-11-18 1998-02-05 Hoechst Celanese Corp A process for producing a fibrous structure with immobilized particulate material
CZ280967B6 (en) * 1994-03-17 1996-05-15 Jiří Ing. Růžička Means for removing and disposal of hydrocarbons, their mixtures or/and derivatives
PL319065A1 (en) * 1997-03-20 1997-09-15 Zaklady Vamag Sp Z Oo Method of obtaining moisture absorbing carbon-fibre non-woven fabrics and apparatus therefor
CZ310499A3 (en) * 1998-03-11 2000-02-16 The University Of Tennessee Research Corporation Porous composite and use thereof
JP3783820B2 (en) * 1998-10-09 2006-06-07 東洋紡績株式会社 Filters for air purification
JP2002273123A (en) * 2001-03-22 2002-09-24 Toyobo Co Ltd Chemical filter
CN1705558A (en) * 2002-09-19 2005-12-07 帕里莫集团有限公司 Nonwoven industrial fabrics with improved barrier properties
JP2007107117A (en) * 2005-10-12 2007-04-26 Kuraray Co Ltd Adhesive nonwoven fabric
KR100812388B1 (en) * 2006-09-12 2008-03-11 한국생산기술연구원 Air-filter for removing hazardous gases and deordorizing, and method for preparing the same
US8318062B2 (en) * 2006-10-04 2012-11-27 Sellars Absorbent Materials, Inc. Industrial absorbents and methods of manufacturing the same
BRPI0821677A2 (en) * 2007-12-31 2015-06-16 3M Innovative Properties Co nonwoven composite fibrous webs having particulate phase and continuous methods of preparation and use thereof
CN201258423Y (en) * 2008-09-02 2009-06-17 王晓东 Improved ironing machines

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Publication number Publication date
WO2012149914A1 (en) 2012-11-08
CZ303268B6 (en) 2012-07-04

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