Product Introduction
Raw Material Selection
Coal-based activated carbon is produced from high-quality anthracite or bituminous coal, with the following selection criteria:
Fixed Carbon Content:
≥75% (premium anthracite can reach ≥85%)
Ash Content:
≤10% (low ash ensures high adsorption performance)
Volatile Matter:
6-12% (affects activation efficiency)
Sulfur Content:
≤1% (prevents SO₂ emissions during use)
Primary Source Regions
Anthracite: Yangquan (Shanxi), Shizuishan (Ningxia)
Bituminous Coal: Ordos (Inner Mongolia), Shenmu (Shaanxi)
Bituminous Coal: Ordos (Inner Mongolia), Shenmu (Shaanxi)
Manufacturing Process
The production of coal-based activated carbon involves the following key steps:
Carbonization
Temperature:
600-800°C (oxygen-free environment)
Equipment:
Rotary kiln / Vertical carbonization furnace
Output:
: Coal char (volatile matter ≤5%)
Activation
|
Activation Method |
Process Parameters |
Characteristics |
|
Physical Activation |
Steam at 850-950°C |
Develops micropores (1-2 nm) |
|
Chemical Activation |
ZnCl₂/H₃PO₄ solution |
Higher mesopore ratio (2-50 nm) |
Post-Treatment
- Acid washing: Removes metal impurities (ash content ≤3%)
- Crushing & Screening: Produces granules (1-4mm), powder (200 mesh), etc.
Product Specifications
(1)Key Models & Parameters
|
Model |
Iodine Value (mg/g) |
Surface Area (m²/g) |
CCl₄ Adsorption |
Applications |
|
GH-15 |
800-1000 |
800-1000 |
≥60% |
Water Treatment |
|
GH-8 |
1000-1200 |
1000-1200 |
≥70% |
Gas Purification |
|
GH-4 |
≥1200 |
≥1200 |
≥80% |
Gold Extraction |
Product Forms
Cylindrical Activated Carbon:
Φ1.5-4mm, mechanical strength ≥95%
Crushed Carbon:
Irregular granules, more cost-effective
Powdered Activated Carbon:
200-325 mesh, for emergency treatment
Core Advantages
High abrasion resistance (≥90% in ball mill test)
Adjustable pore size distribution (controlled via process)
Excellent regeneration (3-5 reuse cycles)
Application Fields
1. Water Treatment
|
Application |
Technical Highlights |
Case Example |
|
Drinking Water |
Chlorine removal ≥99% |
100,000-ton/day water plant |
|
Industrial Wastewater |
COD removal 40-80% |
Heavy metal adsorption |
|
Sewage Treatment |
PACT process (bio-combination) |
Petrochemical park systems |
2. Air Purification
- VOCs Control: Toluene adsorption ≥400 mg/g
- Flue Gas Desulfurization: SO₂ removal ≥90%
- Indoor Air: Formaldehyde adsorption ≥95% (GB/T 18883)
3. Other Fields
- Gold Mining: Gold loading capacity ≥10 kg/t
- Food Industry: Decolorization (≥90% efficiency)
- Pharmaceuticals: Antibiotic purification
Selection Guide
- Liquid Phase Adsorption: Choose mesoporous carbon (iodine value 800-1000)
- Gas Phase Adsorption: Prioritize CCl₄ adsorption ≥70%
- Special Requirements:
High-sulfur environments: Acid-washed (ash ≤3%)
Food-grade: Complies with GB/T 13803.2
ISO 9001/14001 certified, widely used in environmental protection, metallurgy, and chemical industries. Custom pore-size distribution services available upon request.