ENERGY TECHNOLOGY | POWER + INDUSTRIAL
AdvX®
Enable fuel switching while enhancing
efficiency and controlling corrosion.
Explore fuel switching strategies
Supporting the switch to different fuels
FUEL FLEXIBILITY
AdvX® Switch
Enabling Fuel Flexibility
Maximize Fuel Flexibility
with Advanced SO3 Removal
By streamlining operations, reducing costs, and improving emissions control, AdvX® Switch is the smart choice for power plants seeking maximum efficiency with minimal disruption.
Ljungström® Injection Technologies
Fuel flexibility enabled by the AdvX® Switch system is achieved through our SBS or LBS Injection™ technologies, which lower sulfur trioxide (SO3) concentrations in flue gas and allow for a wider fuel portfolio.
- Reduces SO3 concentrations for more fuel options
- Prevents acid mist, corrosion, and fouling
- Improves operational efficiency and reliability
- Flexible response to changing fuel markets
WHY IT WORKS
AdvX® Switch
Fuel Flexibility Explained
Efficient SO3 Reduction
for Enhanced Fuel Choices
Existing power and industrial plant operators can expand fuel flexibility to enable the use of a broader range of fuels, improving cost-efficiency, and protecting key equipment, all while ensuring regulatory compliance and operational efficiency.
SO3 Reduction Process
AdvX® Switch efficiently lowers SO3 levels in flue gas, preventing acid mist and protecting critical equipment.
- Lowers SO3 concentrations
- Prevents acid mist formation
- Comply with emissions regulations
Expanded
Fuel Options
Explore strategies to use alternative fuels, while maintaining or improving plant performance.
- Enables higher-sulfur fuel use
- Reduces fuel procurement costs
Long-Term Reliability
Corrosion and fouling is minimized to extend the life of key components and minimize maintenance.
- Prevents ABS fouling and corrosion
- Extend component lifespan
- Minimize maintenance downtime & operational disruptions
SYSTEM OPTIMIZATION
Maximizing Efficiency with AdvX® Solutions
LJUNGSTRÖM’s AdvX® HRI and AdvX® BFP systems can improve your plant’s operational efficiency and reduce costs. By leveraging innovative heat recovery and energy-saving technologies, these systems offer flexible, customizable solutions that address heat rate and feedwater preheating challenges.
AdvX® HRI
Heat Rate Improvement
LJUNGSTRÖM’s AdvX® HRI System repurposes excess heat, enhancing efficiency and reducing costs with a flexible, plant-specific design.
- Better Boiler Efficiency – Hotter combustion air saves fuel and cuts CO₂.
- Stronger Emission Control – Cooler flue gas improves ash collection and lowers emissions.
- Less Water Use – Cuts wet FGD water consumption by up to 50%.
- Smaller Equipment – High-temp recovery reduces system size.
AdvX® BFP
Boiler Feedwater Preheat
The AdvX® BFP System reduces steam consumption for feedwater preheating by using recovered energy from the APH, enhancing heat rate and cutting fuel costs.
- Lower Fuel Costs – Boosts boiler efficiency by 0.5% to 1.5%.
- Optimized Energy Use – Reduces steam extraction from the turbine.
- Enhanced System Performance – Includes bypass duct, control damper, heating upgrades, heat exchanger, and piping.
HEAT RATE IMPROVEMENT
AdvX® HRI
Smarter Heat Recovery for Greater Efficiency
LJUNGSTRÖM’s AdvX® HRI System captures and repurposes excess heat from flue gas, optimizing efficiency and lowering costs. Designed for flexibility, it adapts to your plant’s setup, improving performance while reducing emissions and resource consumption.

Original APH
Before upgrade, flue gas heat is lost, limiting efficiency and increasing fuel costs.

Upgrade Example
System enhanced with new energy source while still delivering required combustion air preheat.
Improved Boiler Efficiency
- Saves fuel and lowers operational costs
- Hotter combustion air boosts thermal performance
- Reduces overall CO₂ emissions
Enhanced Emission Control
- Cooler flue gas to ESP improves ash collection
- Lowers particulate and mercury emissions
- Helps meet stringent environmental regulations
Reduced Resource Consumption
- Cooler flue gas to wet FGD cuts water use by up to 50%
- Minimizes reliance on auxiliary heat recovery systems
- Optimizes plant-wide energy efficiency
BOILER FEEDWATER PREHEAT
AdvX® BFP
Maximizing Efficiency
Through Smarter Heat Recovery
The AdvX® BFP System optimizes boiler feedwater preheating by optimizing recovered energy from the air preheater (APH) instead of relying on steam extraction from the low-pressure turbine. This reduced steam consumption enhances unit heat rate, and improves overall plant efficiency while lowering fuel costs.
Optimized Energy Use
Enhancing Heat Rate with Reduced Steam Dependency
- Maximizes APH-recovered energy instead of turbine-extracted steam
- Reduces operational strain on the low-pressure turbine.
- Improves overall system efficiency
Lower Fuel Costs
Achieve Significant Savings with Improved Efficiency
- Boiler efficiency gains
0.5% to 1.5% - Reduces fuel consumption
for long-term cost savings - Maximizes return on investment through smarter heat utilization
Advanced System Integration
Seamlessly Designed for Plant Adaptability
- Includes bypass duct, control damper, and upgraded heating elements
- Integrated BFP heat exchanger
and optimized feedwater piping - Configurable for various plant setups and operational needs
FLEXIBILITY SOLUTION
AdvX® FLX
Operational Flexibility
With plants increasingly operating at lower loads and capacity factors, traditional systems – designed for high-load conditions – face new operational challenges, particularly in cycling generation profiles.
The AdvX® FLX system is engineered to remove these constraints, providing greater operational flexibility while delivering significant cost savings in both the short and long term. This low-cost, high-impact solution eliminates efficiency losses when paired with an APH upgrade, allowing power plants to operate more flexibly and efficiently.
Typical Plant Operational Constraints
- SDA/CDS: SO2 removal, Wastewater evaporation capacity, Minimum load/temperature
- Steam Generator: Coal moisture/mill temp, APH average cold-end temperatures, Acid dewpoint corrosion
System Benefits
- Increases dry scrubber inlet temperature for improved performance
- Optimizes mill temperature to enhance combustion efficiency
- Raises APH average cold-end temperature (ACET) to minimize corrosion and fouling
The system features a high-efficiency APH element configuration, paired with an advanced X-ratio management system, adaptable to air or gas bypass duct arrangements. Custom optimization ensures seamless integration tailored to your plant’s needs.
Example Project
A utility customer was forced into operating and maintaining a costly, temporary wastewater treatment system due to low capacity factors resulting in reduced evaporation capacity in their SDA. LJUNGSTRÖM’s AdvX® FLX solution incorporated an upgrade to the air preheater that will improve wastewater evaporation and eliminate the costs of additional wastewater treatment.
- Increase SDA inlet temperature by 20°F
- Increase ACET by 10°F
- Increase mill temp by 10°F
- Improve heat rate at high loads
ZERO LIQUID DISCHARGE
AdvX® ZLD
Zero Liquid Discharge
AdvX® ZLD introduces breakthrough technology that makes Zero Liquid Discharge (ZLD) both practical and cost-effective. By recovering energy for wastewater evaporation without impacting boiler heat rate, it significantly reduces or often eliminates wastewater treatment in FGD systems, optimizing efficiency while minimizing environmental impact.
Our state-of-the-art Zero Liquid Discharge System leverages excess heat to enhance operational efficiency, cut costs, and reduce waste. By integrating advanced Ljungström® Air Preheater technology, a compact spray dryer system, interconnecting ductwork, and smart controls, it delivers a seamless, low-disruption solution for your plant.
Non-Disruptive
Recover energy for wastewater evaporation without impacting boiler heat rate.
- No impact on boiler heat rate
- Significant energy recovery
- Ideal for wastewater treatment systems
Cost-Effective Wastewater Evaporation
Use existing heat sources to optimize efficiency and cost.
- Reduce or even eliminate FGD wastewater treatment costs
- Cost-effective evaporation solutions
- Reduces chloride levels in FGD systems
Fast ROI + Operational Improvements
Experience rapid payback and substantial long-term savings with waste energy reinvestment.
- Payback periods as short as 1–3 years
- Boosts boiler efficiency
- Reduces environmental impact
STACK GAS REHEAT
AdvX® SGR
Stack Gas Reheat
The AdvX® Stack Gas Reheat system captures and utilizes excess heat from flue gas, significantly improving operational efficiency while delivering substantial cost savings. Designed for minimal installation and maintenance, this system provides a high-impact solution with little hassle.
Leveraging LJUNGSTRÖM’s advanced air preheater technology, the system efficiently recovers excess heat from flue gas and repurposes it for stack gas reheat after a wet flue gas desulfurization (WFGD) system. Additionally, it can be tailored to enhance boiler efficiency by supplying hotter air for combustion, improving heat rate, and reducing fuel consumption. By lowering flue gas temperature, the system also significantly reduces particulate emissions and increases mercury capture for improved environmental compliance.
High-efficiency APH element configuration for enhanced heat recovery
X-ratio management system with optimized airflows matched to plant operations
Proprietary gas mixer for uniform distribution and improved reheat efficiency.
By streamlining operations, reducing costs, and improving emissions control, AdvX® Stack Gas Reheat is the smart choice for power plants seeking maximum efficiency with minimal disruption.
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