Latest Webinar Info

Using New Equipment and Sorbents to Improve Performance of Your Dry Scrubber

A DSUA Webinar

March 9th, 2021
10:00AM – 11:30AM EST

Register for the DSUA Webinar Here!

Can’t make the live recording? Register anyway and you’ll receive the recording afterwards. 

End-users in attendance will be entered into a webinar raffle to receive giveaways from DSUA 2021 sponsors!



Enhanced Hydrated Lime Fundamentals

Presented by: Curt Biehn – Mississippi Lime Company

Lime or Hydrated Lime can be one of the largest cost consumables for those operating dry SO2 control or dry sorbent injection systems. Over the past 5-10 years, the development of enhanced hydrate lime (EHL) by some lime suppliers has opened a window for end users to recognize cost savings from conversion to enhanced hydrates. Improved performance of EHLs offers saving on annual sorbent costs, reduces ash, and reduces shipments. Use of EHL also eliminates the need for a customer to operate an onsite hydrator for circulating dry scrubbers, plus other operational benefits. This presentation will outline the general differences between standard and EHL, discuss performance advantages, and provide examples of potential benefits to the end user.


JEA Northside Generating Station SDA Optimization

Presented by: Stewart McKenzie – Lechler, & Scott Sloniker – JEA

The decline of coal and other fossils fuels as preferred fuel sources is reducing the number of power plants at an accelerating pace.  This is being hastened by the current global health epidemic which is resulting in rapid development and installation of renewable fuels. Cost advantageous renewable fuels are the first choice to replace fossil fuels in the energy mix. In the interim, coal based plants are still in need of economic, robust, and reliable air pollution control systems for applications such as NOx reduction, SOx capture, and gas conditioning. Flue gas scrubbing is essential to a modern power plant. SOx emissions are well contained by lime based gas scrubbers. SOx has been identified as an acid gas precursor which results in a harmful chemical for H2SO4(i.e., sulfuric acid) to living organisms. Most coal fueled power producers utilize one of a range of lime based scrubbing of flue gases. The range extends from wet flue gas desulphurization (WFGD) for large plants to spray dry absorption (SDA) and further to dry lime injection to effect this capture.This is a case study of the upgrade and improvement of the SDA’s used at JEA Northside and provides plant data on process savings and operation.


Thank you to our 2021 Webinar Sponsors











2021 In-Person Conference Cancelled – Monthly Webinars Will Continue

The DSUA remains focused on the health and safety of our attendees, partners, and conference staff.  We all anticipate and enjoy our time sharing, learning, and socializing during conference week.  Unfortunately, due to the events related to the COVID-19 pandemic and the uncertainty of how long quarantine and social distancing guidelines will remain in place, the board has elected to cancel the in-person conference for 2021.  We will proceed with monthly webinars in 2021 similar to what DSUA did in 2020 in an effort to continue sharing dry scrubbing knowledge and experience in a virtual format until we feel it is appropriate to resume an in-person conference.  DSUA hopes that by the end of 2021 we have better clarity on our plans for 2022.  We look forward to your participation in the 2021 DSUA webinars!  Please don’t hesitate to contact us with any questions, comments, concerns.

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