Sulfuric acid manufacturing line
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Keywords:
ENGINEERING CASE
Raw Material Chemical Industry
Sulfuric Acid Plant
Product details
Asia Chemical Engineering Co., Ltd. is one of the most reliable manufacturers and suppliers of sulphuric acid plant in China. Please rest assured to wholesale cost-efficient sulphuric acid plant from our factory. Good service and reasonable price are available.
Custom sulfuric acid production line adopting 3+1 DCDA technology, high SO₂ conversion rate ≥99.8%, full waste heat recovery for steam generation. Complete EPC service for fertilizer, metallurgy, chemical industries, output standard 98% concentrated sulfuric acid.
We provide customized sulfur burning sulfuric acid plants with capacity from 10kt/a to 300kt/a (100kt/a standard model). The whole set includes sulfur melting unit, sulfur furnace & conversion unit, dry-absorption section, waste heat recovery system, DCS automatic control and finished acid storage.
Raw material: ≥99.9% solid bright sulfur; Finished product: 98.1–98.5% industrial sulfuric acid complying with GB534-2014, optional oleum & liquid SO₃ units.
Annual running time: 8000 hours (3-shift continuous operation).
Core Process Technology
Adopt mature integrated process: dynamic sulfur melting + liquid sulfur pressure filtration + 3+1 four-bed double contact double absorption (DCDA) + fan arranged behind drying tower + full waste heat steam recovery.
Sulfur Melting & Purification: Low-energy rapid melting tank with filter to remove impurities, stable liquid sulfur supply at 135–148℃.
Complete Sulfur Combustion: Dual atomization (mechanical + hot air) via sulfur gun for full sulfur burning.
High Conversion Unit: Two-stage 3+1 conversion design, SO₂ conversion ≥99.8%, ultra-low tail gas emission.
Advanced Dry-Absorption: Three-tank two-circuit acid cycle, medium-high temperature absorption restrains acid mist, reduces SO₂ in acid and exhaust.
Max Waste Heat Utilization: Waste heat boiler, high/low temperature superheaters & heat pipe economizers produce up to 15t/h 3.82MPa superheated steam for heating or power generation.
Post-drying-tower Fan Layout: Boost heat recovery and improve workshop environment.
Key Advantages
1、Eco-friendly & Low Emission
Tail gas SO₂ ≤400mg/Nm³, far below international standards; only 50 tons sulfur slag generated yearly for recycling; nearly zero wastewater under normal operation. Noise controlled below 85dB(A) with silencers and isolation design.
2、Significant Energy Saving
Full waste heat recovery system self-generates large amount of steam, greatly cuts power and fuel consumption. Power consumption: 70 kWh per ton 100% sulfuric acid.
3、Anti-corrosion & Long Service Life
Drying tower, absorption tower and acid coolers lined with acid-resistant brick, 316L & C276 alloy to resist strong acid corrosion, low maintenance cost.
4、DCS Intelligent Control
Centralized monitoring of temperature, pressure, acid concentration and flow with safety interlock alarms, fewer operators required.
5、Customized Layout
Adjust equipment layout, water & power matching according to local altitude, raw material and factory land conditions.
6、Complete Safety Protection
Full fire prevention, explosion-proof, anti-corrosion, dust and poison protection design with professional labor protection configuration.
Application Industries
Our Full Service Scope
- Engineering: Process PFD, civil, electrical and instrument design
- Procurement: All core towers, heat exchangers, alloy pumps, DCS control system
- Construction: Overseas equipment installation, piping welding
- Commissioning: Cold & hot test run, formal production handover
- After-sales: Operator training, 2-year warranty for main equipment, lifelong spare parts supply
FAQ
Q1 What raw material does this plant use?
High-purity solid bright sulfur with S ≥99.9%, low ash and moisture.
Q2 What concentration sulfuric acid can be produced?
Standard 98% concentrated sulfuric acid; oleum and liquid SO₃ devices optional.
Q3 Can the plant recover waste heat to produce steam?
Yes, max 15t/h 3.82MPa superheated steam for factory use.
Q4 Is the production line environmentally compliant?
DCDA high conversion reduces sulfur dioxide discharge, waste slag can be recycled comprehensively.
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