Based on physical adsorption and capillary condensation principles, this product efficiently captures both polar and non-polar airborne pollutants. It achieves over 85% removal efficiency for volatile organic compounds (VOCs) including formaldehyde (≥15mg/g), benzene (≥30mg/g), toluene (≥28mg/g), and total volatile organic compounds (TVOCs) (≥40mg/g), as well as odor-causing substances like sulfides and amines. Additionally, it maintains ambient humidity at 40%-60% through mild humidity regulation, making it ideal for air purification in enclosed or semi-enclosed environments such as residential spaces, offices, and vehicle interiors.
Application Method: This filter material can be used as a filler in HEPA composite filters, honeycomb purification modules, or breathable non-woven fabric bags. Recommended loading density: 10-15 m²/500g for residential spaces, 1 m³/100g for vehicle environments, and for industrial workshops, calculate based on air volume (air velocity ≤1000 h⁻¹). Maintenance Cycle: Under normal temperature and humidity conditions (25℃, RH50%), perform low-temperature regeneration (60-80℃) for 8-10 hours every 3 months. The saturation adsorption cycle lasts 6-8 months, and replacement should be determined through iodine value testing or weight changes.
The product complies with the standard "GB/T 30202.1-2013 Honeycomb Activated Carbon", adopts the physical adsorption mechanism, and has no risk of chemical additive release. Its biological safety reaches the food contact level. Storage conditions: temperature 0-40℃, relative humidity ≤60%, in a ventilated and dry environment, avoid contact with strong oxidizers and corrosive gases to prevent pore structure blockage or oxidation failure.
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Technical Note: This product is a passive adsorption material. When combined with mechanical ventilation (air change rate ≥2 times/h) or electrostatic air purifiers, it forms an "active capture + high-efficiency adsorption" purification system, enhancing VOC removal efficiency by 30%-50%. It is not suitable for treating high-concentration industrial exhaust gases, and specific operating conditions require pilot testing.
Product Advantages
Superior Hardness and Low Dust Generation
One of the standout features of Tianyuan’s nutshell carbon is its mechanical strength. Sourced from high-density fruit pits and coconut shells, the granules resist crushing and attrition inside filtration towers. This reduces the risk of secondary pollution caused by carbon dust entering the clean air stream, a common issue with softer materials. For engineers designing systems that require cleaner operation than what standard honeycomb activated carbon blocks might offer in high-vibration environments, our high-hardness granules provide a reliable, low-maintenance solution.
Optimized Pore Structure for VOC Removal
The activation process is fine-tuned to develop a pore structure specifically targeting the molecular weights of common industrial pollutants. The abundance of micropores ensures that substances like toluene, xylene, and esters are locked deep within the carbon matrix. While honeycomb carbon structures are excellent for high-airflow, low-concentration scenarios, our packed-bed nutshell carbon delivers the "polishing" effect needed for high-concentration emissions or strict emission standard compliance, ensuring your facility meets environmental regulations efficiently.
Versatile System Integration & Customization
We understand that every air treatment project has unique parameters. As experienced activated carbon suppliers, Tianyuan offers this product in various mesh sizes (e.g., 4x8, 6x12, 8x30) to match specific pressure drop requirements. Whether you are refitting an existing packed tower or designing a new adsorption unit, our technical team helps calculate the optimal bed depth and flow rate. This flexibility allows our nutshell carbon to work alongside or independently of honeycomb activated carbon modules to create multi-stage filtration systems that balance airflow with adsorption efficiency.
Use Scenarios
Industrial Solvent Recovery Systems
Plant operators in printing, painting, and chemical manufacturing rely on our nutshell activated carbon for the recovery of expensive solvents. The high microporosity effectively captures organic solvents from exhaust gases. Unlike single-pass honeycomb carbon filters used for odor control, the granular packed beds allow for thermal desorption (steam or nitrogen regeneration), enabling the facility to recover and reuse solvents like acetone and ethanol, significantly reducing raw material costs and operational expenses.
Laboratory & Cleanroom Air Purification
In environments where air purity is critical, such as semiconductor manufacturing cleanrooms or chemical laboratories, trace contaminants must be eliminated. Facility managers choose our nutshell carbon for its low ash content and high purity. It acts as a critical molecular sieve, trapping acidic or alkaline gases that could damage sensitive equipment or ruin experiments. While honeycomb activated carbon is used for general air intake, our granular media is deployed in the final filtration stage to ensure air quality meets ISO class standards.
Commercial HVAC & Odor Control Units
For shopping malls, airports, and office buildings, maintaining indoor air quality is a priority. Engineering consultants specify Tianyuan nutshell carbon for air handling units (AHUs) to combat urban pollution and internal odors. The material’s high density allows for compact filter banks that fit within limited mechanical room spaces. It effectively removes sulfur dioxide, nitrogen oxides, and kitchen exhaust odors, providing a fresher environment for occupants compared to standard coarse filters or basic honeycomb carbon alternatives often found in residential units.
About Us
Chengde Tianyuan Activated Carbon Co., Ltd. has been a premier force in the carbon industry since its establishment in 2003. Located in Chengde, Hebei Province—a region rich in natural carbon resources—we have grown into a comprehensive activated carbon manufacturer integrating R&D, production, and global trade. Our facility spans advanced production lines capable of delivering diverse carbon solutions, from premium coconut shell granules to specialized powder and honeycomb activated carbon products.
We are committed to quality and international standards, holding ISO9001 quality management certification. Our products serve a global clientele across Europe, North America, and Southeast Asia, supporting industries ranging from water treatment and gold recovery to critical air purification. With a focus on sustainable practices and customer-specific solutions, Tianyuan continues to be the preferred partner for businesses seeking reliable activated carbon suppliers who understand the technical nuances of adsorption applications.
Call to Action
Contact our engineering team today to secure high-performance carbon solutions for your filtration project!
FAQ
What is the difference between nutshell granules and honeycomb carbon for air filtration?
Nutshell granules (GAC) offer higher surface area and adsorption capacity per volume, making them ideal for high-concentration pollutants and deep purification. Honeycomb activated carbon is structurally designed to minimize air resistance (pressure drop) and is better suited for handling very large air volumes with lower pollutant concentrations.
Can this activated carbon be regenerated?
Yes, our nutshell activated carbon is characterized by high mechanical strength and thermal stability, making it suitable for on-site steam or inert gas regeneration. This capability allows for a longer service life and reduced replacement costs compared to disposable media.
What specific impurities does this product remove?
This product is highly effective at adsorbing Volatile Organic Compounds (VOCs) such as benzene, toluene, xylene, formaldehyde, and various odors. It is also used to remove specific industrial gases like hydrogen sulfide and sulfur dioxide when chemically impregnated.
Do you provide custom mesh sizes for special equipment?
As a direct activated carbon manufacturer, we can customize particle sizes to meet your specific equipment requirements. Common sizes include 4x8, 6x12, and 8x30 mesh, ensuring the material fits perfectly into your existing adsorption towers or filter cartridges.
How do you ensure the quality of your shipments?
We implement strict quality control measures under our ISO9001 certified system. Every batch undergoes rigorous testing for iodine value, moisture, ash, and hardness before shipment. We also support third-party inspections (such as SGS) upon request to guarantee specification compliance.
