In our last two blogs, we’ve discussed the evolving mercury abatement market, some of the challenges presented, and the technology Nol-Tec has developed – our Gen 3 system – to meet those challenges. We’ve had proven success with these new systems – proven through our on-site testing program.
Utilizing a large fleet of portable, self-contained testing equipment, Nol-Tec ran tests on site of both power plants and industrial boilers, in real-world conditions. Most tests were for mercury compliance with MATS standards. However, EGUs and IBs also wanted to control SO3 emissions that are not directly included in MATS, but necessary nonetheless for enhanced Hg removal. Many tests included injecting both alkaline products and Hg sorbents. This helped us prove not only that Nol-Tec’s systems can produce the correct levels of mercury abatement, but also provide the flexibility our customers demand.
At multiple test sites, Nol-Tec proved again and again that our Gen 3 could meet the challenges presented by powder activated carbon (PAC) and mercury abatement standards. We used a variety of PAC formulations, as well as mixing different kinds of sorbents with PAC to meet requirements. We ran systems at higher injection rates than a standard eductor system could handle. We worked with fluctuating pressures (a reality in pneumatic conveying) and long convey distances. In every case, we were able to bring mercury and other pollutant levels into compliance with EPA standards, efficiently and effectively. PAC and activated carbon injection do work for mercury abatement when used with a correctly designed pneumatic convey system.
More test result details can be found in the August 2014 issue of Air Pollution Control Magazine or on our website at this link. And you can get more information about Nol-Tec’s ACI systems at this link.