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DeSOx & DeNOx Systems
Sulphur oxides (SOx) and nitrogen oxides (NOx) are major air pollutants generated by combustion processes, power plants, Waste-to-Energy facilities and industrial thermal systems.
Effective control of these emissions is essential for meeting environmental regulations, improving air quality, and supporting sustainable industrial operations.
Delmer Group provides advanced DeSOx and DeNOx systems designed to reduce sulphur oxide and nitrogen oxide emissions from industrial flue gases. Our customized emission control technologies combine chemical treatment, reagent injection, catalytic processes, and intelligent automation to deliver high pollutant removal efficiency and reliable long-term performance.
Each solution is engineered according to fuel or waste characteristics, flue gas composition, plant capacity, operating temperature, and required emission limits.
What Are DeSOx Systems?
DeSOx, or flue gas desulphurization, refers to technologies used to remove sulphur oxides from industrial exhaust gases.
SOx emissions, particularly sulphur dioxide (SOā), are commonly produced during the combustion of sulphur-containing fuels and waste materials.
Delmer Group designs DeSOx systems that capture and neutralize acidic sulphur compounds before treated flue gas is discharged into the atmosphere.
Our DeSOx solutions are suitable for continuous operation and can be integrated into new plants or existing emission control facilities.
Dry DeSOx Systems
Dry flue gas treatment systems inject alkaline reagents directly into the gas stream to neutralize acidic pollutants.
Dry Flue Gas Treatment
Common reagents include:
- Sodium bicarbonate
- Hydrated lime
- Other application-specific alkaline sorbents
The reagent reacts with sulphur compounds and other acid gases. Reaction products are then collected using high-efficiency baghouse filtration systems.
Key advantages include:
- Compact system design
- Low water consumption
- Simple plant operation
- Flexible reagent dosing
- Efficient SOx reduction
- Easy integration into existing plants
Semi-Dry Flue Gas Desulphurization
Semi-dry DeSOx systems use spray dryer absorbers or specialized reactors to introduce finely atomized alkaline solutions into the flue gas.
Semi-Dry DeSOx Technology
The process provides efficient gas-to-reagent contact, enabling effective neutralization of sulphur oxides and acidic compounds.
Benefits include:
- High SOā removal efficiency
- Optimized reagent consumption
- Reduced wastewater generation
- Stable treatment performance
- Effective acid gas control
Semi-dry systems are widely used in Waste-to-Energy and industrial combustion facilities.
Wet DeSOx Systems
Wet flue gas desulphurization systems use liquid scrubbing technologies to absorb and neutralize sulphur compounds.
Wet Scrubbing Technology
These systems are designed for applications requiring high removal efficiency and treatment of significant pollutant loads.
Wet DeSOx technologies offer:
- High SOx removal performance
- Effective treatment of variable gas loads
- Flue gas cooling capability
- Continuous process operation
- Flexible chemical treatment options
Customized scrubber configurations can be developed according to the specific industrial process.
Advanced DeNOx Systems
DeNOx systems are designed to reduce nitrogen oxide emissions generated during high-temperature combustion.
Delmer Group provides advanced NOx reduction technologies for Waste-to-Energy plants, industrial boilers, furnaces and thermal processing facilities.
Our solutions include Selective Non-Catalytic Reduction (SNCR) and Selective Catalytic Reduction (SCR) technologies.
Selective Non-Catalytic Reduction (SNCR)
SNCR technology reduces NOx emissions by injecting a controlled reagent into the high-temperature combustion zone.
SNCR Technology
Common reagents include ammonia-based solutions or urea. Under optimized temperature conditions, these reagents react with nitrogen oxides and convert them primarily into nitrogen and water.
Key advantages of SNCR systems include:
- Simple process configuration
- No catalyst requirement
- Lower capital investment
- Flexible system integration
- Reliable NOx reduction
- Suitable for plant modernization projects
Precise reagent dosing and temperature control are essential for maximizing removal efficiency and minimizing reagent consumption.
Selective Catalytic Reduction (SCR)
SCR is an advanced DeNOx technology designed to achieve high nitrogen oxide removal efficiency.
SCR Technology
In an SCR system, flue gas passes through a catalytic reactor while a controlled reducing reagent is injected into the gas stream. The catalyst promotes the chemical conversion of NOx into nitrogen and water.
Benefits of SCR technology include:
- High NOx removal efficiency
- Low final emission levels
- Controlled reagent consumption
- Reliable continuous operation
- Compliance with stringent environmental limits
SCR systems can be customized for various temperature ranges and flue gas conditions.
High-Dust & Low-Temperature SCR Systems
Different industrial processes require specialized SCR configurations.
High-Dust SCR
Installed in flue gas streams with higher particulate concentrations and designed for demanding process environments.
Low-Temperature SCR
Developed for applications where flue gas temperatures are lower, helping reduce or avoid additional gas reheating requirements.
SCR with Catalyst Regeneration
Catalyst management and regeneration solutions can help extend catalyst operating life and maintain long-term DeNOx performance.
The optimum configuration is selected according to flue gas characteristics and plant operating conditions.
Integrated DeSOx & DeNOx Solutions
For plants requiring simultaneous control of sulphur and nitrogen oxide emissions, Delmer Group develops integrated DeSOx and DeNOx treatment systems.
Complete Flue Gas Treatment Line
A complete flue gas treatment line can combine:
- Dry or semi-dry reactors
- Wet scrubbers
- Reagent injection systems
- SNCR technology
- SCR catalytic reactors
- Baghouse filters
- Activated carbon dosing
- Heat recovery systems
- Continuous emission monitoring
Integrated engineering helps optimize plant footprint, energy consumption and overall emission control performance.
Automatic Reagent Dosing & Process Control
Efficient DeSOx and DeNOx treatment depends on accurate control of operating parameters and reagent consumption.
Intelligent Process Control
Our systems can incorporate:
- PLC-based automatic control
- Real-time emission monitoring
- Automatic reagent dosing
- Temperature monitoring
- Flue gas flow measurement
- Pressure monitoring
- Process alarms and safety interlocks
- Remote monitoring capabilities
Intelligent process control automatically adjusts treatment conditions according to actual plant operation, helping maintain stable emissions and optimize operating costs.
Applications
Delmer Group DeSOx and DeNOx systems are suitable for:
Why Choose Delmer Group?
Delmer Group provides customized industrial emission control technologies designed for efficiency, reliability and long-term environmental compliance.
Customized DeSOx and DeNOx Engineering
Tailored solutions for your specific plant requirements.
Dry, Semi-Dry and Wet Treatment Technologies
Comprehensive range of desulphurization solutions.
SNCR and SCR Solutions
Advanced NOx reduction technologies for all applications.
High-Dust and Low-Temperature SCR Configurations
Specialized solutions for demanding process conditions.
Integrated Flue Gas Treatment Systems
Complete multi-pollutant control solutions.
Intelligent Reagent Dosing and Automation
Optimized control for stable emissions and reduced costs.
New Plant and Retrofit Solutions
Flexible solutions for new and existing facilities.
Complete EPC Project Capabilities
From design to commissioning, we deliver turnkey solutions.
Installation & Commissioning Support
Comprehensive technical and after-sales service.
Long-Term Technical and After-Sales Service
Reliable support for the lifetime of your system.
Reliable SOx & NOx Emission Reduction Solutions
As environmental emission requirements become increasingly stringent, industries need efficient technologies capable of maintaining reliable performance under changing operating conditions.
Delmer Group's DeSOx and DeNOx systems provide advanced sulphur oxide and nitrogen oxide reduction solutions for Waste-to-Energy plants and industrial facilities. From dry and wet desulphurization to SNCR and advanced SCR technologies, we deliver integrated emission control systems engineered for cleaner air, improved plant efficiency and sustainable industrial operations.