ACTIVATED CARBON MANUFACTURER IN VIETNAM

PEI CHIA ENTERPRISE CO., LTD. is a Vietnam-based manufacturer of coconut shell activated carbon under its proprietary brand, VinaSorb®.

With ISO 9001:2015-certified quality management and established manufacturing operations in Vietnam, we provide activated carbon products for water treatment, air and gas purification, gold recovery, and industrial applications.

Our focus is on consistent production processes, reliable supply, and application-specific activated carbon solutions for customers worldwide.

VinaSorb® Activated Carbon 

DEVELOPED IN VIETNAM. DESIGNED TO ADSORB.

VinaSorb® activated carbon is produced using carefully selected coconut-shell raw materials and controlled activation processes.

Our products are developed to deliver reliable adsorption performance, consistent product characteristics, and pore structures tailored to specific applications.

Through continuous process improvement and quality control, we aim to provide dependable activated carbon solutions for a wide range of purification requirements.

INDUSTRIES & APPLICATIONS

• Drinking Water Treatment

• Wastewater Treatment

• Air & Gas Purification

• Semiconductor & Chemical Processing

• Gold Recovery

• Food & Beverage Purification

• Industrial Process Purification

U.S. EPA - BEST AVAILABLE TECHNOLOGY (BAT)

What Is Activated Carbon?

Activated carbon is a highly porous adsorbent designed to capture and remove unwanted substances from liquids and gases. Its internal pore structure provides an exceptionally large surface area, allowing contaminants to be retained through adsorption.

How Does Activated Carbon Work?

The performance of activated carbon comes from its highly developed pore structure. Different pore sizes play different roles in the adsorption process:

• Micropores capture smaller molecules.

• Mesopores support the adsorption of medium-sized molecules and improve adsorption kinetics.

• Macropores act as transport channels, allowing contaminants to enter the internal pore structure.

In addition to physical adsorption, the surface chemistry of activated carbon can also contribute to the removal or decomposition of certain contaminants.

Activated carbon is commonly used to reduce organic contaminants, odors, unwanted tastes, color-causing compounds, and selected process impurities.

In certain industrial applications, activated carbon can also promote the decomposition of hydrogen peroxide into water and oxygen.

From Coconut Shells to High-Performance Activated Carbon

Coconut Shells → Carbonization → Charcoal → Crushing → Activation → Screening → Post-Treatment (As Required) → Finished Product

Post-Treatment (As Required): Depending on product specifications and application requirements, activated carbon may undergo additional post-treatment processes, such as water washing, acid washing, or other application-specific treatments. These processes are applied selectively to meet the desired product characteristics and performance requirements.

Steam Activation of Coconut-Shell Activated Carbon

Steam activation is widely used to produce high-quality activated carbon from coconut shells. The process begins with carbonization: carefully selected coconut shells are heated under controlled conditions to produce coconut-shell charcoal.

The charcoal is then activated in a furnace at temperatures typically ranging from 850°C to 1,000°C. During this stage, steam reacts with the carbon under carefully controlled low-oxygen conditions, gradually developing and enlarging the internal pore structure.

The main reaction can be expressed as:

C + H₂O → H₂ + CO

As the reaction proceeds, part of the carbon is converted into hydrogen and carbon monoxide gases. This controlled removal of carbon atoms opens and expands the internal pores, creating a highly porous carbon structure with a large surface area.

The activation conditions can be adjusted to develop different pore-size distributions, allowing the activated carbon to be tailored for specific applications. Depending on the targeted product specifications, approximately 2 to 4 kg of coconut-shell charcoal may be required to produce 1 kg of activated carbon.

Washing and Purification

After activation, the activated carbon may undergo additional washing treatments to reduce soluble ash and other impurities.

• Water washing is used to remove water-soluble ash and residual impurities.

• Acid washing is used when a lower ash content or higher purity is required. After acid washing, the activated carbon is repeatedly rinsed with water to remove any remaining traces of the acid solution.

These additional treatments help ensure stable product quality and make the activated carbon suitable for applications with more demanding purity requirements.

Consistent Production. Reliable Supply.

At PEI CHIA, our manufacturing operations are supported by controlled production processes, routine product testing, and established quality management procedures.

From raw material selection to activation, screening, and final packaging, we focus on maintaining consistent product characteristics and dependable supply.

Our ISO 9001:2015-certified quality management system supports continuous improvement and traceability throughout our manufacturing operations.