Jul 02 , 2025
China's sulfuric acid production capacity reached 91 million tons in 2024, demanding reliable equipment that withstands extreme corrosion. Yongji Industry Group delivers engineered solutions for sulfur-burning, metallurgical and waste acid regeneration plants.
With ISO9001:2015 certification and 15+ years expertise, Yongji provides:
Corrosion-resistant materials: 316L stainless steel, Hastelloy C-276, and proprietary alloy formulations
Custom engineering: Designs optimized for 50-1000 ktpa capacity plants
Turnkey solutions: From converters to waste heat recovery systems
Key performance metrics:
99.5% sulfur conversion efficiency
<50mg/Nm³ SO₂ emissions
92% waste heat recovery rate
Our vertical cylindrical furnaces achieve 1100-1200°C combustion temperatures with <2% excess air. Features include:
Automatic sulfur spray nozzles
Refractory lining (230mm thick)
Integrated waste heat boiler
Multi-stage converters with:
Ø4-8m catalyst beds
Inter-bed heat exchangers
98.5% SO₂ to SO₃ conversion
Packed towers designed for:
98-99% H₂SO₄ production
Countercurrent flow configuration
Demister pads with <5mg/Nm³ acid mist
Equipment for smelter gas treatment:
Gas cleaning towers (scrubbers)
Wet electrostatic precipitators
Mercury removal systems
Thermal decomposition systems featuring:
Decomposition furnaces (950-1050°C)
Catalytic converters
Acid mist eliminators
Recent installations include:
600 ktpa sulfur-burning plant (Hebei, China)
300 ktpa pyrite acid facility (Guizhou, China)
120 ktpa sulfur plant (Congo, Africa)
All projects feature:
ASME pressure vessel certification
PED compliance for European markets
18-month performance guarantees
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Capacity | 50-1000 ktpa | 1500 ktpa+ |
| Operating Pressure | 0.1-1.2 MPa | 2.5 MPa |
| Temperature Range | -40°C to 500°C | 800°C alloys |
| Material Options | 5 grades | 12 specialty alloys |
| Delivery Time | 6-8 months | Express 4 months |
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