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What is the function of activated carbon package?

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the function of activated carbon bag is to adsorb trace toxic gases in the air, such as ammonia, formaldehyde and benzene, which can adsorb the peculiar smell after decoration

applicable to:

(1), moisture-proof packaging and export packaging of large and medium-sized mechanical equipment, chemical equipment, military weapons, ordnance equipment and various mechanical tools

(2), preservation and storage of precision products such as electronics, precision instruments, measurement, mapping and testing

(3), preservation and storage of Arts and crafts, cultural relics, fur, musical instruments, cosmetics, books, calligraphy and painting, securities

(4), dry food Mould proof and moisture-proof of pharmaceutical and light industrial products

similar materials include bamboo charcoal, charcoal and nano living ore, which are used to absorb trace toxic gases in the air

extended data

activated carbon is a very excellent adsorbent. It is processed and manufactured by a series of processes such as crushing, screening, catalyst activation, rinsing, drying and screening of raw materials through physical and chemical methods, using charcoal, bamboo charcoal, various fruit shells and high-quality coal as raw materials

it has the dual characteristics of physical adsorption and chemical adsorption. It can selectively adsorb various substances in gas phase and liquid phase, so as to achieve the purposes of decolorization and purification, disinfection and deodorization, decontamination and purification. The inspection standard can be in accordance with Chinese national standard GB or other national standards, such as American ASTM, Japanese JIS, German DIN standard, etc

precautions:

1. During the transportation of fruit shell activated carbon, avoid squeezing, falling, pressing and damaging its original physical structure, which will affect the density of voids and affect the adsorption function

2. If the activated carbon gets wet in the rain, please dry it and then continue to use it

3. Prevent direct contact with fire source to prevent fire. Avoid oxygen during regeneration of activated carbon and regenerate completely. After regeneration, it must be cooled by steam to below 80 ℃. The temperature is high. In case of oxygen, the activated carbon will spontaneously ignite

reference source: Baidu Encyclopedia – activated carbon deodorization bag

1. Moisture proof packaging and export packaging of large and medium-sized mechanical equipment, chemical equipment, military weapons, ordnance equipment and various mechanical tools

2. Preservation and storage of precision products such as electronics, precision instruments, measurement, mapping and testing

3. Preservation and storage of Arts and crafts, cultural relics, fur, musical instruments, cosmetics, books, calligraphy and painting, securities

4. Dry food, medicine Mildewproof and moisture-proof of light industrial products

extended data:

related: properties of activated carbon:

the carbon content, specific surface area, ash content and pH value of aqueous suspension of activated carbon all increase with the increase of activation temperature. The higher the activation temperature, the more complete the volatilization of the residual volatile matter, the more developed the microporous structure, and the greater the specific surface area and adsorption activity

the composition and content of ash in activated carbon have a great influence on the adsorption activity of carbon. The ash content is mainly composed of K2O, Na2O, Cao, MgO, Fe2O3, Al2O3, P2O5, SO3, Cl -, etc. the ash content is related to the raw materials for preparing activated carbon, and the ash content in carbon increases with the removal of volatiles in carbon

by 2007, the annual output of activated carbon in the world had reached 900 KT, of which coal based (Qualitative) activated carbon accounted for more than 2 /3 of the total output; China’s annual output has exceeded 400kt, ranking first in the world. The United States and Japan are also the world’s major activated carbon producers

reference source: Baidu Encyclopedia – activated carbon

reference source: Baidu Encyclopedia – activated carbon deodorization package

activated carbon must be familiar to everyone. It is a kind of black thing similar to coal. The function of activated carbon is mainly used to adsorb formaldehyde and other harmful gases, filter out insoluble and adsorb some soluble substances. So how to use it more effectively? Let me introduce the following: 1. Reference consumption. The newly decorated rooms (including offices, hotels, etc.) are used according to the consumption of 1-2 bags per square meter (i.e. 50-100g). The daily protection of indoor environment can be appropriately reduced according to the degree of pollution. Note: 50-100g per square meter is used to calculate the total space use, and does not mean that 50-100g is placed evenly per square meter. 2. Usage: a. the key places are pollution sources and places where people often move. Place the activated carbon adsorption bag directly in the wardrobe, shoe cabinet, bookcase, kitchen cabinet and other cabinets in the room; Places where computers, desks, tea tables, sofas and other people often move, as well as any other places where air needs to be purified. Activated carbon is a passive purification material. Its adsorption of harmful substances in the air must rely on air as the medium, but the indoor air fluidity is poor. It is difficult for activated carbon to capture harmful substances in the air far away in a short time. Therefore, it has the best effect when used in a small range and small space. B. The height of the placement space should be within 180 cm. For example, the height of formaldehyde in the indoor air is the most serious. Therefore, the height of formaldehyde in the indoor air is the same as that of the most harmful substance. C. Use it for about 20 days. After exposure to the sun for 3-5 hours, it can be used repeatedly. In this way, it can be used for 6-10 months. This step is necessary. The pores in the activated carbon are limited and will be saturated after use for a period of time. In particular, a large number of water molecules occupy a large space in the activated carbon. Therefore, it must be exposed to the sun regularly to evaporate the water molecules in the activated carbon. D. Precautions for the use of new houses that do not check in immediately: open the windows first and try to ventilate as much as possible. You can use electric fans to speed up the alternating amount of fresh air and indoor air, discharge harmful gases outdoors, and scatter the activated carbon adsorption bag at any position indoors. After a period of time, the indoor odor will be reduced, and then the activated carbon will be collected and placed centrally to control the pollution source and continuously absorb the released harmful substances. When the activated carbon is placed in the cabinet, close the cabinet door and open the window. The above content is for reference. I’m glad to answer it for you. I hope it will be helpful to you. I wish you a happy life.

function of activated carbon:

1. Activated carbon is generally used for filtration and decolorization, reducing agent and gas absorption. The specific functions of activated carbon are different according to different application fields. For example, activated carbon was used in gas masks during World War II; Tap water can be deodorized with activated carbon

2. At home, activated carbon can purify the air and remove harmful substances. Because of this series of advantages of activated carbon, many families also began to use activated carbon to improve the air quality at home

3. Granular activated carbon is often used to adsorb molecules. The adsorption of granular activated carbon
determines the application, and the adsorption is related to the pore size distribution of various carbon types

taking steam activated peat based, lignite based and coconut shell based powdered activated carbon as an example: peat based activated carbon has micropores and mesopores, and granular activated carbon can be used for a variety of applications; Lignite based carbon has many mesopores, granular activated carbon and large mesopores, providing excellent accessibility; Coconut shell based granular activated carbon is mainly microporous, which is only suitable for the removal of low molecules

extended data:

precautions for activated carbon:

1. Transportation and loading and unloading: activated carbon shall not be dragged by iron hook during transportation, and shall not be mixed with hard substances. It shall not be strongly vibrated, rubbed, stepped on or smashed. Throwing is strictly prohibited. It shall be loaded and unloaded gently to reduce the breakage of carbon particles and affect the use

2. Storage: it should be stored in a cool, dry and fireproof building as far as possible to prevent the inner and outer packaging bags from cracking, moisture and other substances in the air from affecting the use effect. It is strictly prohibited to mix with toxic and harmful gases or volatile substances, and store away from pollution sources. Do not mix with oxidant; Open flames, sparks and smoking are prohibited in the storage area

3. No water immersion: activated carbon is a porous adsorption material, so it should be absolutely prevented from water immersion in the process of transportation, storage and use. After water immersion, water fills the activated pores, reducing the direct contact between the specific surface of activated carbon and gas, which seriously affects the use effect

4. Prevent tar substances: in the process of use, tar viscous substances should be prohibited from entering the activated carbon bed to avoid blocking the pores of the activated carbon or covering the expanded surface of the activated carbon, so that the gas cannot contact the expanded surface of the activated carbon and lose the application effect. If such substances are contained in the gas, they should be removed before the gas enters the activated carbon bed (preferably with coke removal equipment) to achieve good application effect

5. Fire prevention: activated carbon is combustible. It was once listed in the list of dangerous chemicals in 2002 and belongs to spontaneous combustion, No. 42521, but it has been removed from the list of dangerous chemicals in 2015

reference source: Baidu Encyclopedia – activated carbon

1. Water purification effect of activated carbon
activated carbon can remove residual chlorine, colloid, organic matter, heavy metals (such as mercury, silver, cadmium, chromium, lead, nickel, etc.) and radioactive substances in water
2. Sewage treatment
environmental protection industry is used for sewage treatment, waste gas and harmful gas treatment

3. Household adsorption

activated carbon, as an excellent physical and chemical adsorbent, has attracted more and more attention. The high-efficiency and environment-friendly activated carbon package can absorb all indoor harmful gas molecules such as formaldehyde, ammonia, benzene, xylene and radon in the air and quickly eliminate the odor of decoration. However, it is easy to absorb and saturate. The better ones now choose yeguang mud material, which does not need exposure. It can be decomposed after adsorption and recycled without pollution

4. Air purification

place activated carbon indoors to effectively absorb formaldehyde, xylene and other harmful substances contained in the air (especially newly decorated houses).

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