Our know-how for new generating capacity projects continues to demonstrate the viability of our technology to meet even the most stringent air quality standards.
The Spray Drying Absorption (SDA) process is a versatile way of cleaning flue gases by the removal of acid gases and particulates generated by fossil-fuel burning, mainly coal. Because of the presence of large volumes of flue gasses, power plant installations frequently have more than one Spray Dryer Absorber module.
The end product from Spray Drying Absorption consists of the reaction products, excess absorbent and fly ash. SDA systems can be effectively retrofitted into sites with limited space and typically are brought on-line during a brief tie-in outage, thus minimizing disruption to the power generation.
Waste incinerator applications are generally characterized by relatively low gas. The smaller plant size and the composition of acid content typically favor single-pass designs. The drying properties of the absorber, high chloride content in the inlet gas, single pass mode, etc., call for a design with higher retention time in the absorber chamber, and therefore the plants are operated at high outlet temperatures.
A single, centrally located rotary atomizer minimizes the potential for wall wetting and deposition, which provides optimum reagent utilization. Its abrasion-resistant construction and flexible shaft design can tolerate imbalances and provides reliable, continuous operation between scheduled maintenance.
Our goal is to reduce the emissions of:
- Nitrogen oxides (NOx)
- Sulfur oxides (SO2 and SO3)
- Fine particulate (PM2.5)
- Mercury
- Acid gases (HCl and HF)
- And other hazardous air pollutants (HAPs)
Worldwide, more than 200 Spray Drying Absorption plants are installed at power stations, steel plants, waste incinerator plants, and at plants burning hazardous waste. They all share one common trait: They are operated in accordance with or above required performance stipulations as laid down by local authorities.
Products & Technologies
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Absorption & Gas Scrubbing
GEA supplies scrubbers for an efficient multi-pollutant cleaning of process-and-exhaust gases for various applications.
Desulphurization (DeSOx)
GEA offers three (“wet”, “semi-dry” and “dry”) Sorptive Processes for Flue Gas Desulphurization (FGD) and for other acidic compounds.
Environmental spray drying systems
Proven spray drying technologies for environmental compliance and zero liquid discharge.
InsightPartner - collecting actionable insights
Turn equipment data into actionable insights. GEA InsightPartner® helps you detect issues early, plan maintenance ahead and prevent costly downtime.
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The breakthrough that changed spray drying
In 1976, NIRO engineers responded to a competitive challenge by rethinking what spray drying could do. Their idea became the multi-stage dryer MSD. Fifty years later, the same fundamental principle helps turn liquids into the powders used in essential nutrition products and important medicines around the world. Refined through decades of engineering expertise, customer insight and continuous development, MSD is a story of innovation with lasting impact.
Beyond the machine: unlocking better plant performance
An efficient machine does not automatically make an efficient factory. Real improvement often starts by looking beyond individual equipment and understanding how processes, energy systems and operating decisions affect one another. It’s a holistic approach designed to uncover opportunities that might otherwise be missed.
How a valve reshapes the way food and drinks are made
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