Product Description
PTA Activated Alumina is a high-performance adsorbent specifically designed for the production of terephthalic acid (PTA). Prepared from high-purity alumina using a special process, it possesses a high specific surface area, uniform pore structure, and excellent mechanical strength, effectively removing moisture and trace impurities generated during PTA production.
As a highly efficient activated alumina adsorbent, this material is widely used in PX oxidation, PTA refining, and aromatic hydrocarbon purification processes, improving production system stability and product purity.
Product Parameters
| Item | metrics |
| Specifications | ￠3-5mm,4-6mm |
| Appearance | White spherical |
| Bulk density(g/ cm3) | 0.75-0.8 |
| Specific surface area(㎡/g≥) | 320 |
| Pore(cm3/g) | 0.40-0.50 |
| wear and tear(%≤) | 0.1 |
| AL2O3≥ | 93% |
| SiO2≤ | 0.02% |
| Fe2O3≤ | 0.02% |
| Na2O≤ | 0.30% |
| RH60% | 20-25 |
| Static acid adsorption ≥ | 45% |
| strength ≥ | 170 |
Core features
1. High Adsorption Capacity
PTA-specific activated alumina possesses a well-developed porous structure, enabling efficient adsorption of moisture and polar impurities, ensuring stable operation of the PTA production system.
2. Excellent Mechanical Strength
This activated alumina adsorbent exhibits high compressive strength and low abrasion rate, allowing for long-term stable operation under high flow rates and pressures.
3. Excellent Thermal Stability
PTA production environments are typically high-temperature environments; this product maintains a stable structure even at high temperatures.
4. Recyclable
PTA activated alumina can be regenerated by heating to restore its adsorption capacity, thereby reducing production costs.
Product Application
1. PTA Production System
Moisture and trace impurity removal
Stabilizing feed to oxidation unit
Reducing the risk of side reactions and catalyst poisoning
2. PX Purification Section
Removing trace moisture
Controlling contaminant levels during reaction and distillation processes
3. Aromatic Hydrocarbon Refining
Suitable for deep drying and purification in the refining processes of aromatic hydrocarbons such as benzene, toluene, and xylene.
4. Industrial Gas/Liquid Drying
Used for deep dehydration of solvents, inert gases, compressed air, etc., meeting stringent industrial standards.
PTA Activated Alumina
how to use
Recommended operating temperature: 150–350°C
Suitable for fixed-bed adsorption columns
Regenerate using hot gas or thermal treatment
Replace when outlet moisture increases or adsorption cycle shortens
FAQ
Q: What makes this alumina suitable for PTA applications?
A:It is engineered with a pore structure and surface chemistry optimized for removing specific impurities commonly found in PX/PTA purification.
Q:Can it be used in other hydrocarbon purification systems?
A:Yes. It is effective in drying aromatics, solvents, and industrial gases.
Q:What particle sizes are available?
A:Standard sizes include 3–5 mm, but custom sizing is available based on system design.
Q:Does it generate dust during operation?
A:Its high mechanical strength ensures exceptionally low attrition, reducing dust formation.
Q: What is the main function of activated alumina in PTA production?
A: It is mainly used to adsorb moisture and impurities, stabilize the PTA production process, and improve product purity.
Q: Can activated alumina be regenerated?
A: Yes, its adsorption capacity can be restored through high-temperature regeneration.
Q: Which industries is it suitable for?
A: It is mainly used in PTA production, PX refining, aromatics chemical industry, and petrochemical industry.
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