Air purification and / or deodorizing panel

Abstract

Air purification and / or deodorizing panel (100), characterized in that it comprises a plate (1) and activated carbon (2, 3, 4) attached to its surface on one or both sides, and the activated carbon may be in the form of activated carbon powder (2), activated carbon granules (3), activated carbon extrudate (4) or a combination of one or more of the three forms mentioned above.

Description

Field of application of the utility model

[0001] This utility model relates to air purification and / or deodorization panels, in particular their design. State of the art

[0002] In recent years, interest in the purification and deodorization of indoor spaces has increased. The effectiveness of air purification and deodorization depends on the type of pollutants and their concentration. Materials with good adsorption properties are used for air purification and deodorization. One of the most well-known of these materials is activated carbon, which comes in various forms, such as carbon powder, granules, or extrudates.

[0003] Due to its porosity and large specific surface area, activated carbon has good adsorbent properties, which is why it is used in the pharmaceutical industry, in industrial cleaning, as well as in household and cosmetics applications. The adsorbent properties of activated carbon are used, for example, in medicine with the use of carbon tablets; in industry for air, gas, or water purification; in household extractor hoods or filter systems connected to tap water (generally used for pre- and post-filtration). Other household applications include deodorizing waste bins, refrigerators, and insoles, as well as as an ingredient in cosmetics such as toothpaste, scrubs, and deodorants.

[0004] The most common components for the production of activated carbon are generally carbon-rich materials such as hard coal and wood, but high-quality activated carbon can also be obtained from stone fruit seeds such as coconut. The specific surface area of ​​activated carbon is between approximately 500 and 1500 m2 / g, but activated carbon with a specific surface area of ​​more than 3000 m2 / g can also occur. In addition to the specific surface area, the pore size also contributes to the adsorption efficiency of activated carbon.

[0005] According to the state of the art, several filters or devices are known in which activated carbon is used to purify the air or water stream.

[0006] Patent application WO18102069A1 describes filters that can remove volatile organic compounds such as formaldehyde from flowing air or gases. Activated carbon impregnated with manganese oxide, for example, is used as an adsorbent.

[0007] Patent application No. US2019389740AA describes a water purification filter that includes: A filter housing with an inlet and outlet for the water flow; a filter module located within the filter housing through which the liquid to be purified flows. One of the components of the filter module's material is activated carbon.

[0008] Patent application No. US2011129603AA concerns an air-permeable filter medium comprising an air-permeable backplate and an adsorbent. The adsorbent is at least partially embedded in the air-permeable backplate. The adsorbent used here can consist of, for example, activated carbon fibers, activated carbon particles, mixtures of activated carbon fibers and activated carbon particles, among others.

[0009] Patent application No. US2020360559AA specifically relates to an activated carbon plate for air purification capable of removing volatile organic compounds (such as toluene) in the passenger compartment of a motor vehicle. The activated carbon plate for air purification contains activated carbon fiber, activated carbon in granular or powder form, and fibrillated fibers.

[0010] State-of-the-art solutions apply to activated carbon filters, or filter devices that achieve the adsorption of organic or inorganic compounds present in the air and / or water stream. The disadvantage of such devices and the filters used in them is that they are more expensive to manufacture and operate, and their installation and replacement are also more difficult.

[0011] The panel described above is suitable for air purification and / or deodorization, which is free from disadvantages according to the state of the art and can be used indoors. Brief description of the utility model

[0012] The purpose of this utility model is to provide an air purification and / or deodorization panel suitable for air purification and / or deodorization even in static environments.

[0013] This utility model is based on the finding that activated carbon fixed on a plate is suitable for cleaning and / or deodorising the room air to a small extent without the need to integrate it into complex devices or use air flow aids.

[0014] According to the above finding, this pattern relates to an air purifying and / or deodorizing panel containing activated carbon as an adsorbent and characterized by comprising a plate and activated carbon attached to the surface of the plate.

[0015] Some advantageous models of the pattern are defined in the subclaims. Detailed description of the utility model

[0016] The utility model is described in detail below according to the attached drawings, which show the advantageous models of the air purifying and / or deodorizing panel according to the model. In the drawings in Fig. an axonometric representation of the air purification and / or deodorization panel according to the sample is shown, where activated carbon was fixed as granules on the wooden panel; in Fig. an axonometric representation of the air purification and / or deodorization panel according to the sample is shown, where activated carbon in powder form was fixed on the metal plate; in Fig. an axonometric representation of the air purification and / or deodorization panel according to the sample is shown, where activated carbon was fixed as an extrudate on the ceramic plate; in Fig. an axonometric representation of the air purification and / or deodorization panel according to the sample is shown, where activated carbon in powder form, as granules and extrudate was fixed to the wooden panel; in Fig. Activated carbon extrudate attached to the air purification and / or deodorization panel according to the pattern is shown from close up.

[0017] The Fig. show the 100 air purification and / or deodorization panel according to the sample in an axonometric view. The 100 purification and / or deodorization panel contains 1 plate on which activated carbon is attached. The Fig. differ, among other things, in the form of the activated carbon fixed on plate 1. Activated carbon can be in the form of activated carbon powder 2 ( Fig. ), activated carbon granules 3 ( Fig. ), activated carbon extrudate 4 ( Fig. ) or activated carbon in powder, granulate and extrudate form can be attached mixed to plate 1 ( Fig. The 100 air purification and / or deodorization panels differ from state-of-the-art models in that they do not contain an airflow aid (e.g., fan) and are not built into an air purification or deodorization device. The 100 air purification and / or deodorization panels therefore work best in static environments with a long contact time or a limited amount of air to be treated (e.g., indoors). The 100 air purification and / or deodorization panels are suitable for reducing cigarette smoke and food odors in the home, or in kitchen waste bins, and are also suitable for reducing chemical odors outside the home, e.g., in laboratories or to improve air quality in other facilities.

[0018] 1 panel is preferably understood to be a solid panel with a thickness of at least approximately 1 cm made of workable material. Activated carbon can be applied to both or only one side of panel 1 that is not covered with a covering or protective layer, i.e., activated carbon is in direct contact with the ambient air. If activated carbon is applied to only one side of panel 1, the panel can be used, for example, by hanging it on the wall. If activated carbon is applied to both sides of panel 1, both sides of the panel remain free in the interior, for example, suspended from the ceiling (see Fig. ).

[0019] Activated carbon can be attached to one panel, creating various shapes, patterns, and / or text, meaning the 100 air purification and / or deodorization panels can also function as design elements. In such a case, the color of panel 1 is deliberately chosen, taking into account the fact that activated carbon is black. Proper selection of panel 1's texture also opens up many possibilities for creativity. Panel 1 can be made of cork, concrete, or a mirror surface. It can also be made of dried pasta (e.g., lasagna sheet), pressed plants (wildflowers), or coconut fiber. Furthermore, the surface of the panel can contain an image (photo, graphic) that matches the activated carbon pattern.

[0020] Panel 100 according to the pattern can optionally be equipped with a frame, a device for hanging, lighting.

[0021] The activated carbon used in the sample can come from coconut, wood, or hard coal, for example. Activated carbon powder 2 is referred to as activated carbon powder if the diameter of the activated carbon grain is approximately 20 µm or within this range, and is produced by grinding. Activated carbon granules 3 are granular activated carbon with a particle diameter of approximately 1-3 mm, produced by dry granulation. Activated carbon extrudate 4 is produced by pressing the activated carbon powder; according to the present sample, its shape is cylindrical, its diameter is approximately 4 mm, and its length is approximately 5-10 mm. Mixed activated carbon contains at least two types of activated carbon: powder, granules, and extrudates, in any desired quantities. It is clear to a person skilled in the art that the activated carbon used for this sample may also be in other forms or may differ from the dimensions mentioned above.When a numerical value is mentioned in this pattern, it is understood that the last digit of the given number indicates the accuracy of that value according to the rounding rules. For example, for 20 µm, we mean the range from 19.5 - 20.4 µm.

[0022] In an advantageous embodiment, 100 air purification and / or deodorization panels contain activated carbon on only one side of panel 1, which can contain activated carbon in powder, granular, extruded, or mixed form. In this case, the 100 air purification and / or deodorization panels can even be hung on the wall.

[0023] Activated carbon is glued to panel 1 of the 100 air purification and / or deodorization panels. The required adhesive can be starch-, sucrose-, or water-based (e.g., craft glue (perfect ideaz)). When designing or manufacturing 100 air purification and / or deodorization panels, we prefer sustainable and environmentally friendly materials, such as adhesives. While the activated carbon is being applied, adhesive is applied to panel 1, taking the shape to be formed into account. Activated carbon is sprayed over it (e.g., 2 activated carbon powders and 3 activated carbon granules) or, as with 4 activated carbon extrudates, it can be sprinkled, placed, and / or laid.

[0024] The specific surface area of ​​the activated carbon to be attached to plate 1 of the 100 air purification and / or deodorization panels is between 500 and 1500 m2 / g, preferably between 800 and 1300 m2 / g, more preferably between 950 and 1050 m2 / g, and most preferably 1000 m2 / g. It is obvious to one skilled in the art that the larger the specific surface area of ​​the activated carbon used in the manufacture of 100 air purification and / or deodorization panels according to this pattern, the more effective the 100 air purification and / or deodorization panels will be for air purification and / or deodorization. In addition to the specific surface area, the pore size also contributes to the adsorption efficiency of activated carbon. Depending on the size of the substance to be adsorbed, the starting material for the activated carbon is selected accordingly. The pores of activated carbon can be micro-, meso- or macroporous.For example, activated carbon made from coconuts is rich in micropores, activated carbon made from wood is mostly mesoporous, and activated carbon made from coal is generally rich in macropores. It should be noted that the above statement does not exclude the possibility that activated carbon made from coconuts does not contain macropores and therefore does not adsorb macromolecules. The pore size of activated carbon determines the size of molecules that have potential adsorption interactions with activated carbon, so it is worth choosing the type of activated carbon to use based on the contaminants at the site of use. For example, macroporous activated carbon is suitable for adsorbing cigarette smoke, whereas in the case of air purification and / or deodorization panels, the air in a kitchen may contain a variety of substances with different pore sizes, so it is advisable to use activated carbon with a wide pore range.In addition to the physical reason mentioned above (pore size, specific surface area), the heterogeneous composition of activated carbon is also responsible for its good adsorbing properties.

[0025] The size of panel 1 of the 100 air purification and / or deodorization panels is between 1-4 m x 1-3 m. This pattern is not limited to strictly regular geometric shapes; it can also be circular, triangular, or amoeba-shaped. In our experience, it is generally possible to create an aesthetically pleasing display of activated carbon on a panel of this size, allowing for the application of an appropriate amount of activated carbon, taking into account the air volume of an average living space. Of course, more and / or larger panels can be placed in larger rooms.

[0026] If panel 1 of the 100 air purification and / or deodorization panel has a surface area of ​​1 m2, 2.5 kg of activated carbon extrudate is required to cover the surface of panel 1. However, this pattern is not strictly limited to 100 air purification and / or deodorization panels with a surface area of ​​1 m2, since the size of panel 1 can be, for example, 3 m x 4 m, i.e., the surface area of ​​1 panel in this case is 12 m2. In such a case, 2.5 kg of activated carbon extrudate per square meter can be placed on the surface of 1 panel, i.e., for a surface area of ​​12 m 2 This amount is 30 kg. It is obvious to a person skilled in the art that the type of activated carbon used can be, in addition to extrudate, powder, granules, or a combination thereof.

[0027] The material for one of the 100 air purification and / or deodorization panels is selected from the following list: hardwood, cork, metal, bamboo, ceramic, and stone. When choosing the material for one panel, it was important that the material be sourced from sustainable sources, environmentally friendly, durable, and long-lasting. The durability of one panel is also important because the activated carbon becomes saturated over time (depending on the concentration of adsorbed molecules), reducing its air-purifying and deodorizing effect. The activated carbon must be reactivated after a certain period of time. The depletion time can be estimated before use: it depends on the size of the panel, the amount of activated carbon, and the quality and concentration of the substances to be adsorbed. It can be determined by calculation or empirically by a specialist.The exhausted activated carbon can be easily removed from panel 1, which can be reused after reactivation (removal of impurities and volatile components from the surface of the activated carbon), i.e. the production of 100 air purification and / or deodorization panels is sustainable. 1. Example

[0028] A solid wood panel measuring 1 m x 1 m and 1 cm thick is cut to size. Then, 1.0 kg of activated carbon extrudate (diameter: 4 mm, length: 1 cm) or 1.0 kg of activated carbon granules (average particle diameter: 1-3 mm) are mixed and attached to the surface of the wood panel using adhesive. 20 g of craft glue (perfect ideaz) is used for bonding. A heart shape is drawn with the activated carbon. The adhesive dries for 15 minutes. After drying, the air purifier and / or deodorizer panel described in the utility model can be mounted, for example, on a kitchen wall.

[0029] The exhaustion time of the above-mentioned air purification and / or deodorization panel depends on the concentration of the molecules to be adsorbed, the size of the given room, and the amount of air to be purified. The air purification and / or deodorization panel can be collected after exhaustion, and the applied activated carbon can be reactivated after removal from the panel. The panel can be reused after cleaning.

[0030] The advantage of the solution according to the pattern is that it is capable of purifying and / or deodorizing the air without the need for an electrically operated unit to facilitate the air flow. In addition, its construction is simpler compared to devices currently used for similar purposes, it can be easily scaled up, and its production is cheaper and more environmentally friendly.

[0031] By reactivating activated carbon, the production of an air purification and / or deodorization panel is sustainable.

[0032] In addition to its health benefits, the air purifier and / or deodorizing panel also functions as a design element of the room. Marking list: 1 plate 2 activated carbon powder 3 activated carbon granules 4 Activated carbon extrudate 100 air purification and / or deodorization panels. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 18102069A1

[0006] US 2019389740

[0007] US 2011129603

[0008] US 2020360559

[0009]

Claims

[1] Air purification and / or deodorization panel (100), characterized by that it comprises a plate (1) and activated carbon (2, 3, 4) attached to its surface on one or both sides, and activated carbon may be in the form of activated carbon powder (2), activated carbon granules (3), activated carbon extrudate (4) or a combination of one or more of the three above-mentioned forms. [2] Air purification and / or deodorization panel (100) according to claim 1, wherein the plate (1) contains activated carbon attached to the surface of only one side (2, 3, 4). [3] Air purification and / or deodorization panel (100) according to claim 1-2, wherein activated carbon (2, 3, 4) is glued to the specific surface of the plate (1), the glue being based on starch, sucrose and water. [4] Air purification and / or deodorization panel (100) according to claims 1-3, wherein the activated carbon (2, 3, 4) has a specific surface area between 500 and 1500 m2 / g, preferably between 800 and 1300 m2 / g and most preferably between 950 and 1050 m2 / g. [5] Air purification and / or deodorization panel (100) according to claim 4, wherein the activated carbon (2, 3, 4) has a specific surface area of ​​1000 m 2 / g has. [6] Air purification and / or deodorization panel (100) according to claims 1-5, wherein the panel (1) is 1-4 mx 1-3 m in size. [7] Air purification and / or deodorization panel (100) according to claims 1-6, wherein for covering the surface of a 1 m 2 large plate (1) 2.5 kg of activated carbon extrudate (4) is required. [8] Air purifying and / or deodorizing panel (100) according to claims 1-7, wherein the material of the panel (1) is selected from the following list: hardwood, cork, metal, bamboo, ceramic, stone.

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