Dry Sorbent Injection (DSI)

Dry Sorbent Injection System

Overview

Since 2009, UCC Environmental (UCC) has pioneered dry sorbent injection technology which injects selected sorbents into the flue gas to control SO2, SO3, mercury, HF and HCI. UCC leads the industry in Dry Sorbent Injection and is recognized as the technology leader that delivers robust systems that perform. Our customers have confidence in our systems. Our experience removes the guesswork and we work closely with customers to deliver a reliable solution to each plant’s needs. We have also retrofitted 65 competitor systems that were underperforming. These systems are more efficient, using less sorbent, and are working well.

• Performance-based turnkey solutions

• Over 30,000 hours of DSI demonstration testing

• UCC VIPER® Mill Technology delivers the highest removal efficiency and greatest cost savings

• UCC’s Patented COBRA™ Lance maximizes particle dispersion in DSI and ACI systems

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Industries

Cement

Heavy

Limestone

Oil & Gas

Power

Pulp & Paper

Operational Excellence – Our commitment to innovation delivers cost-effective results in dry sorbent injection systems that achieve removal goals with minimal use of sorbent.

Splitters – UCC splitters are designed to evenly split sorbent to each splitter leg to achieve high removal efficiency while minimizing the risk of plugging.

COBRA® Lance – UCC lances are engineered to maximize particle dispersion in the ductwork without requiring power or compressed air, with minimal impact on pressure drop in DSI and ACI systems.

CFD Modeling – UCC specializes in Computational Fluid Dynamic (CFD) modeling of plant duct flows to predict and enhance sorbent dispersion in flue gas while minimizing sorbent injection usage​.

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DSI FOR LIME KILNS

COBRA™ II Lance

The COBRA™ II Lance has been engineered to maximize particle dispersion at the sorbent injection point in Dry Sorbent Injection (DSI) and Activated Carbon Injection (ACI) systems. The patented COBRA II Lance offers optimal efficiency over standard lances and can reduce sorbent use by 10 to 30%! The COBRA II Lance further improves emission removal performance and significantly reduces sorbent consumption.

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Ecopod

The ecopod™ is a compact, modular unit designed to provide cost-effective Hydrated Lime, Trona and Sodium Bicarbonate injection. Its stand-alone design is equipped with a simple legged silo or external hopper for sorbent storage. The ecopod incorporates both the sorbent metering and conveying equipment. Controls and power distribution equipment is also integral to the unit. A six door configuration allows for easy and safe access to its equipment and instrumentation. Its small footprint allows for installation on existing slabs or platforms.

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MULTI-POLLUTANT CONTROL CAPABILITY

Many plants are looking for a single, comprehensive solution for the removal of pollutants required by EPA MATS and CSAPR/CAIR regulations. Determining factors include complex chemistry, fluid dynamics, sorbent selection, injection location and interaction with existing APC equipment such as ACI systems, fuel additives and fabric filter / ESP collection. UCC has extensive experience with simultaneous SO2, SO3, HCI, HF and Hg removal to deliver comprehensive compliance strategies in a timely and economical manner.

PROVEN MILLING TECHNOLOGY

The VIPER Mill is a proven, reliable technology developed specifically for dry sorbent injection. The UCC patented VIPER Mill operates in line with the DSI system and delivers the smallest particle size, highest throughput and greatest cost savings in the industry. The result is 30 – 50% lower sorbent usage compared with as-delivered material.

• Designed for trona and sodium bicarbonate

• Capacity: 0.5 – 7 tons per hour

• Median particle size: 9 – 15 µm (trona), 15 – 19 µm (SBC)

• Reduced sorbent usage saves millions of dollars​

SKID MOUNTED INSTALLATION WITH AUTOMATED CLEANING

The VIPER Mill is equipped with an automated cleaning system to eliminate sorbent build-up. The cleaning cycle ensures consistency in particle size while balancing horsepower, temperature rise and sorbent technology throughout. The VIPER Mill uses either a simple bypass system or redundant skid for uninterrupted DSI operation.

How can we help?

Our team of experts are happy to help answer any questions you have about UCC’s air solutions.

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