Activated Carbon For Ammonia Gas Removal Heycarbons Manufacturer From China
Activated Carbon For Ammonia Gas Treatment
What is Ammonia NH₃?
Ammonia (NH₃) is a colorless, harmful alkaline gas with a pungent and unpleasant odor. It is easily soluble in water to form ammonia water (NH₃·H₂O).
- The emission of ammonia will aggravate air pollution and affect air quality. Ammonia reacts with other pollutants (such as NOx, SOx) to produce secondary pollutants (such as PM2.5 and ozone).
- The presence of ammonia will cause odor. In livestock farms, toilets, garbage stations and other places, ammonia is the main source of odor, affecting the daily lives of staff and surrounding residents.
- Ammonia is harmful to the human body. Low concentrations of ammonia (>5 ppm) can cause sore throat, tearing, and difficulty breathing; high concentrations of ammonia (>50 ppm) severely irritate the respiratory tract and may cause pulmonary edema or even death.
Will activated carbon remove ammonia?
Activated carbon has a developed pore structure and a large specific surface area, and can physically adsorb gas molecules. However, since ammonia is a small polar molecule, its interaction with activated carbon is weak, resulting in limited adsorption capacity, easy saturation, and easy desorption.
Therefore, in order to improve the adsorption efficiency, activated carbon is usually chemically modified:
- The activated carbon is acid-washed. The surface of the acid-modified activated carbon contains a large number of acidic functional groups (such as –COOH, –OH, –C=O), which can enhance the adsorption capacity of alkaline gas ammonia.
- Or phosphates, sulfates or metal oxides are loaded on the surface of activated carbon to enhance the adsorption capacity of activated carbon for alkaline gases.
Activated Carbon For Ammonia Treatment Process
1. Pretreatment of activated carbon remove ammonia
- Washing and drying: Remove ash or impurities and increase specific surface area.
- Acid treatment (surface modification): Use nitric acid, phosphoric acid, sulfuric acid, etc. to introduce acidic functional groups to enhance affinity for ammonia.
- Metal loading (optional): Load metal oxides such as CuO and MnO₂ to promote chemical reactions.
2. How to filter ammonia gas from air?
- Fill the modified activated carbon into an adsorption tower or column.
- Ammonia passes through the adsorption bed filled with activated carbon and contacts the surface of the activated carbon.
- Physical adsorption + chemical reaction work together to capture ammonia.
3. Activated carbon regeneration/replacement after saturation
- After saturation, it can be regenerated by heating (thermal regeneration) or water washing (for soluble ammonia salts).
- If it is irreversible chemical adsorption, the activated carbon needs to be replaced.
Factors affecting the efficiency of activated carbon in adsorbing ammonia
- Temperature: Lower temperature is conducive to physical adsorption, and high temperature can lead to ammonia desorption.
- The more acidic functional groups on the surface, the stronger the chemical adsorption capacity.
- Specific surface area and pore size distribution: The more developed the micropores, the greater the adsorption per unit mass.
- Ammonia inlet concentration and flow rate: High concentration can lead to rapid saturation of activated carbon, and too fast flow rate reduces contact time.
- Humidity: High humidity can promote the dissolution and adsorption of ammonia, and may also compete with activated carbon for adsorption sites.
Heycarbons Activated Carbon For Ammonia Gas Product
Phosphoric acid H3PO4 impregnated pelletized activated carbon ammonia removal
Phosphoric acid H3PO4 impregnated pelletized activated carbon has a large specific surface area and well-developed pores, which can effectively adsorb ammonia.
Phosphoric acid is acidic and can neutralize ammonia. In ammonia treatment, phosphoric acid and ammonia generate non-volatile substances to convert and remove ammonia.
Activated carbon ammonia gas formula
The chemical reaction formula for phosphoric acid to remove ammonia is as follows:
1. The neutralization reaction of phosphoric acid and ammonia produces diammonium phosphate (NH₄H₂PO₄):
- H3PO4+NH3→NH4H2PO4
If there is excess ammonia, it can further react to produce diammonium hydrogen phosphate ((NH₄)₂HPO₄):
- NH4H2PO4+NH3→(NH4)2HPO4
2. Overall reaction formula (excess ammonia):
- H3PO4+2NH3→(NH4)2HPO4
Ammonia adsorption activated carbon specification
The product parameters of H3PO4 impregnated activated carbon are as follows:
| Parameter | Specification |
|---|---|
| Size | 3-5 mm |
| CTC | 60% (min.) |
| Moisture | 15% (max.) |
| Hardness | 95% (min.) |
| Phosphoric Acid Content | 15% (min.) |
| Apparent Density | 0.58-0.65 g/cm3 |
Special cooling equipment is used in the production process of Heycarbons columnar activated carbon to ensure that the activated carbon does not fall to the ground during the entire process, thereby avoiding the mixing of impurities. This may indirectly ensure the quality and consistency of the product.
Heycarbons pelletized activated carbon impregnated with phosphoric acid with an iodine value of 900 mg/g can also be used to remove chlorine in waste incineration power plants.
Heycarbons Activated Charcoal Ammonia Removal Customer Case
Activated Charcoal Ammonia Removal Customer Case-1
A customer’s waste incineration power plant needs to remove ammonia.
The product specifications used are as follows:
- Powdered activated carbon
- Iodine value 800mg/g
- Impregnation with 9% phosphoric acid H3PO4
- Powdered activated carbon needs to be sprayed during use, so there are requirements for humidity, preferably ≤10%.
Activated Carbon Ammonia Removal Customer Case-2
A customer needed to remove ammonia and hydrogen sulfide gases. The air volume was 60,000 liters, the operating time was 24 hours, and six tanks were required, each holding one cubic meter of activated carbon. The customer required ammonia concentration to be reduced from 80 mg/m³ to 50 mg/m³, and hydrogen sulfide concentration to be reduced from 30 mg/m³ to 5.5 mg/m³.
In this case, a carbon base impregnated with 10% phosphoric acid and potassium hydroxide, respectively, was suitable. The activated carbon tanks were connected in series.
Due to the high air volume and concentration in this project, the activated carbon usage was small, requiring replacement or regeneration after a maximum of two weeks of use.
Activated Carbon Ammonia Treatment Practical Application Scenarios
Activated carbon treatment of ammonia is widely used in many industries and life scenarios, especially in situations where it is necessary to control harmful gas emissions, improve air quality, and protect equipment and personnel health. The following are the main application scenarios:
- Chemical plants and ammonia synthesis processes: ammonia leaks, residual ammonia in exhaust systems.
- Sewage treatment plants & landfills: ammonia produced by decomposition of organic matter and volatilization of ammonia nitrogen.
- Livestock and poultry farms: ammonia volatilization from animal excrement.
- Battery and electronic component manufacturing: volatilization of ammonia chemicals in cleaning processes.
- Air purifiers and fresh air systems: low-concentration ammonia volatilized from detergents, pet urine, etc. in daily life.
- Hospitals and nursing homes: excrement, detergents, and medical waste gas.
Custom Heycarbons Activated Carbon Solution For Ammonia Gas
Heycarbons provides a full range of activated solutions at competitive prices.
What Clients Say on Our Activated Carbon
Customize Heycarbons Activated Carbon Ammonia Gas Removal
Heycarbons has proudly served the activated charcoal industry with high-quality products since 2005, Heycarbons can customize your activated carbon for your project.
- Customize different raw materials according to different applications.
- Customized size, iodine value , methylene blue, molasses value, PH, ash, etc.
- Cost-effective solutions customized according to customer applications.
- China leading and professional supplier of activated carbon.
Heycarbons Other Activated Carbon Solutions
Waste water Treatment
Supply of granular and powdered activated carbon for wastewatertreatment to remove COD. BOD, heavy metals, organics, acid odors, hydrocarbons, color, etc.
VOCs Removel
Our activated carbon can help remove volatile organic compounds (VOCs) from the air by removing contaminants and impurities.
Air Purification
Heycarbons provide 4mm, 0.9-8mm pelleted and impregnated pellet activated carbon, and granular carbon for various exhaust gas treatment, vapor recovery, and VOCs removal. biogas H2S removal, Cigarette filtration， etc.
Solvent Recovery
Heycarbons provide EAC carbon for high-end air purification or various gas solvent recovery, such as benzene toluene. Dichloro methane solvent recovery, tape factory solvent recovery, and others.
Food purification and Decolorization
Heycarbons provide 8*16, 8*30, 12*40 mesh bituminous or briquetting activated carbon for food and water decolorization and purification, such as Sugar, MSG, Juice and wine, Edible oil, glycerin, Sewage decolorization, Corn starch sugar, amino acid, etc.
Steps to Custom Activated Carbon For Ammonia Removal
Consultation
By understanding your needs and requirements, our salesmen work with you to submit the appropriate activated carbon solution.
Quotation
Heycarbons expert customer service will provide you with a free quote based on your requirements as well as product specifications and quantities.
Production
Heycarbons has sufficient inventory and strong production capacity, and will report production progress to you from time to time.
Shipping
Heycarbons know you need to receive the product as soon as possible, after rigorous quality checks and protective packaging, by fedex shipping.
Are You Looking for Activated Carbon For Ammonia Gas Adsorption?
Contact us for design assistance, free quote, and expert advice today.
Your inquiry will be replied within 24 working hours, and we respect your privacy.
