4×8 Coal-Based Carbon
for Desulfurization
Engineered for flue gas SO₂ removal. Large particle size for minimal pressure drop, high crush strength for repeated regeneration cycles. The proven solution for sintering plants and power stations.
⚡ Quick Answer
4×8 mesh coal-based activated carbon (HojeeVapor BG800) is a coarse-grain, high-CTC GAC engineered for flue gas desulfurization and H₂S removal, with iodine number ≥ 800 mg/g, CTC ≥ 55%, crush strength > 95%, and ash ≤ 12%. The 2.36–4.75 mm particle size minimizes pressure drop across deep beds handling thousands of m³/hr of flue gas from power plants, sintering lines, and smelters.
- Mesh Size
- 4×8 (2.36–4.75 mm)
- CTC
- ≥ 55%
- Iodine Number
- ≥ 800 mg/g
- Crush Strength
- > 95%
Related: All Coal-Based Carbon · H₂S Removal · Coal Columnar Carbon · Get a Quote
Catalytic Desulfurization with Activated Carbon
Activated carbon desulfurization is replacing traditional limestone scrubbing in many industries because it produces no wastewater, recovers valuable sulfuric acid as a byproduct, and simultaneously removes other pollutants (NOx, dioxins, heavy metals). The carbon acts as both adsorbent and catalyst — oxidizing SO₂ to H₂SO₄ within its pore structure.
Our 4×8 mesh coal-based desulfurization carbon is specifically formulated for this demanding application. The large particle size minimizes pressure drop across deep beds (1.5–3 meters), while the high crush strength (≥90%) ensures the carbon survives hundreds of thermal regeneration cycles at 350–400°C without breaking down into fines that would increase system resistance.
Design Parameters
Pressure Drop
4×8 mesh = minimal resistance
Regeneration
Thermal at 350–400°C
SO₂ Range
Inlet concentration
Multi-pollutant
Simultaneous removal
Applications
- Flue gas desulfurization (FGD)
- SO₂ and H₂S removal
- Sintering plant emission control
- Coke oven gas purification
- Biogas H₂S removal
- Industrial furnace off-gas treatment
- Acid gas scrubbing support
- Mercury vapor capture (co-benefit)
AC Desulfurization vs Traditional FGD Methods
| Parameter | AC Desulfurization | Wet Limestone | Dry Sorbent |
|---|---|---|---|
| SO₂ Removal | 95–98% | 95–99% | 70–90% |
| Wastewater | Zero | Significant | None |
| Byproduct | H₂SO₄ (sellable) | Gypsum (waste) | Waste powder |
| Multi-pollutant | ✓ SO₂+NOx+Hg | SO₂ only | SO₂ + HCl |
| Operating Cost | Medium | Low | High |
Technical Specifications
| Model | HojeeVapor BG800 |
| Mesh Size | 4×8 (2.36–4.75 mm) |
| Raw Material | Bituminous coal |
| Iodine Number | ≥ 800 mg/g |
| CTC Activity | ≥ 55% |
| Crush Strength | > 95% |
| Ash Content | ≤ 12% |
| Moisture | < 3% |
| pH | 8 – 11 |
| Bulk Density | 0.45 – 0.55 g/cm³ |
| H₂S Breakthrough | Contact for TDS |
| SO₂ Capacity | Contact for TDS |
| Activation | Steam activated, high-temp |
Full SO₂ and H₂S breakthrough data available in TDS
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Why Choose Hojee for Desulfurization
Project Scale
100–2000+ tons supply for new installations. Phased delivery matched to construction schedule.
Performance Tested
SO₂ breakthrough curves, H₂S capacity, and crush strength data from our in-house lab.
Regeneration Proven
Carbon survives 50–100+ thermal cycles. Reduces lifetime cost by 60% vs single-use media.
Asia Expertise
Supplying sintering plants and power stations across China, India, and SE Asia since 2015.
Frequently Asked Questions
Why 4×8 mesh for desulfurization?
How does activated carbon desulfurization work?
What SO₂ inlet concentrations can this handle?
How long before regeneration is needed?
What is the MOQ and lead time?
Planning a Desulfurization System?
Get project pricing for your flue gas treatment system. We provide carbon selection, system sizing guidance, and pilot samples.