Environmental protection equipment supplier
Case Study / Waste Gas Treatment
Chemical Plant VOC Emission Control System
UV photolysis + activated carbon combination system for a chemical plant, reducing VOC emissions by 95% to meet environmental standards.
30,000 m³/hAir Flow Rate
95%VOC Removal Rate
UV + CarbonCore Technology
Project Overview
Chemical Plant VOC Challenge
A chemical manufacturing plant in Jiangsu Province required an effective VOC emission control system to comply with increasingly strict air pollution regulations.
The Challenge
The plant produces specialty chemicals, generating exhaust gas containing complex VOCs including toluene, xylene, ethyl acetate, and other organic solvents. The total exhaust volume reaches 30,000 m³/h with VOC concentrations fluctuating between 200-800 mg/m³.
- Complex multi-component VOC mixture (toluene, xylene, ethyl acetate)
- High and fluctuating emission concentrations (200-800 mg/m³)
- Need to meet emission standard (< 50 mg/m³)
- Continuous 24/7 operation requirement
- Limited space for equipment installation
Solution
Two-Stage VOC Treatment Process
Soto Machinery designed a combined UV photolysis + activated carbon adsorption system for comprehensive VOC abatement.
1
Gas Collection & Pre-Treatment
Fume hoods and ducting collect VOC-laden gas. Pre-filter removes particulates and moisture droplets.
2
UV Photolysis Decomposition
High-energy UV lamps break down VOC molecular bonds, converting complex organics into simpler compounds like CO₂ and H₂O.
3
Activated Carbon Adsorption
Granular activated carbon beds adsorb residual VOCs and odorous compounds for final polishing to meet standards.
4
Stack Discharge
Cleaned gas is discharged through a 15-meter stack. Continuous emission monitoring ensures compliance.
Equipment
Key Equipment Supplied
Soto Machinery manufactured and supplied all core waste gas treatment equipment.
Waste Gas
UV Photolysis Purifier
High-energy UV decomposition system for VOC and odor treatment.
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Waste Gas
Activated Carbon Unit
Adsorption system for residual VOC and odor compound removal.
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Waste Gas
Wet Scrubber Tower
Pre-treatment scrubber for acid/alkaline gas and particulate removal.
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Waste Gas
Dust Collector
Pre-filtration dust collector for particulate matter removal.
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Results
Emission Control Performance
The system has been operating reliably since commissioning, consistently meeting emission standards.
95%VOC Removal
<30Outlet VOC (mg/m³)
24/7Continuous Operation
<65dBOperating Noise
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