Tri-Mer UltraCat Confers a Wide Range of Benefits to Biomass and WTE acilities.

Its flexible, modular approach facilitates a stepped process of meeting future emissions targets, within the same footprint.

Unlike conventional methods of multi-pollutant control, the technology delivers the highest levels of pollutant and opacity reduction, with ease of operation, and low cost of operation.

UltraCat Filtration technology is an all-dry alternative to traditional wet (or wet/dry) scrubber solutions. Operating at elevated temperatures, it also increases optimizes waste heat recovery. Here are 4 applications in the biomass/WTE space where UltraCat filtration proved highly effective.

The combustion of chicken litter demands control of NOx, acid gas and PM. A standard solution has been boiler SNCR, followed by downstream DSI and a baghouse. Since combusted chicken litter releases considerable HCl, increased ammonia slip enhances the formation of ammonium chloride upstream of DSI injection for HCl control. Ammonium chloride passes on to the stack to form a visible plume when condensing. UltraCat Filtration allows the injected sorbent to react with the HCl upstream of the ammonia injection, eliminating the telltale plume.

Sewage sludge gasification is a thermochemical treatment that converts carbonaceous material to solid ash and a clean, usable combustible gas. Here, sludge from wastewater is treated by splitting 430 tpd of Class A biosolids into bio fly ash, (which is sold as a substitute for coal fly ash to the cement industry) and a producer gas, which delivers the energy to dry the biosolids.

Downstream of separating the bio fly ash of the gasifier with a cyclone, the producer gas fuels an oxidizer to thermally decompose all combustibles, including PFAS. The heat of the oxidizer exhaust gas is recovered to feed the dryers with hot air, making the process auto-thermally self-sufficient.

A fully redundant UltraCat Filtration system with NOx slip reactor controls the emissions to SOTA standards with NOx removal efficiencies > 95 percent, SO2 > 93.5 percent, and FPM > 99.7 percent.

Tire-derived high sulfur diesel fuel has a long tradition of co-firing in cement kilns and elsewhere. Converting tires into a liquid, diesel-like high sulfur fuel, however, creates the opportunity to directly convert it to power in an engine genset. A redundant UltraCat Filtration system controls the emissions with a removal efficiency of NOx > 78 percent and SO2 > 83 percent.

Fermentation broth is typically landfilled at a considerable tipping fee. The heating value of the fermentation broth makes it a valuable fuel for steam recovery, substituting for conventional fuels such as natural gas. The fermentation broth is directly fed into a bubbling bed boiler, which has an exhaust gas temperature of < 500°F.

In comparison with circulating dry scrubber baghouse devices with re-heating for downstream SCR NOx control, the combination of a recirculating DSI reactor with UltraCat Filtration technology achieved equal performance efficiency of NOx > 87.3 percent, SO2 > 96.7 percent and FPM > 99.4 percent without re-heating the boiler exhaust gas, or air dilution for exhaust gas moisture control.