Tri-mer is a manufacturer of scrubber equipment for air pollution control systems:  hot gas filtration, NOx control, catalyst filter, high temperature filter, PM2.5, ceramic filter, glass furnace emissions, submicron particulate, ESP, dioxin control.
Particulate Matter (PM) Emissions   | PM + SO2 or HCl   | PM + NOx   |   Any Combination PM, SO2, HCl, NOx, mercury, dioxins
Select by Trade Name Literature Articles Press Q&A Awards & Alliances Reps Contacts Product Catalog News Conference Talks Events Careers


Dry Compact Filters, HEPA quality by Pollutant:

- Dry Dust (Tri-Flo)

Back to Solutions
Dry Compact Filters, HEPA quality by Equipment:

- Tri-Flow Compact Filters

Back to Solutions



Tri-Mer's Ceramic Catalyst filter systems remove particulate (PM), acid gases such as SO2 and HCl, and NOx in a single all-in-one system. Ceramic catalyst filters are composed of fibrous ceramic materials that can withstand high temperatures up to 1650° F. The filter walls have nanobits of highly-efficient SCR catalyst for NOx control. Destruction of NOx is effective at temperatures as low as 350° F and up to 950° F. SO2, SO3, HCI and HF are removed in the same system with integrated dry sorbent injection of hydrated lime, SBC or Trona. Dioxins and many organic compounds are also destroyed by the proprietary catalyst.

Tri-Mer catalytic ceramic filter systems provide much higher temperature capabilities than fabric filter baghouses, and offer much better performance than ESP. Initial cost and operating costs are lower on multi-pollutant applications. In short, Ceramic Catalyst filters have unique multi-pollutant features including NOx and dioxin treatment not possible with fabric filters or ESP. Tri-Mer systems have become the technology of choice in many industries. Read the Ceramic Catalyst Filters page for details.

NOx with PM is treated by the Tri-Mer ceramic catalyst filter systems. For NOx removal on applications without PM in the gas stream, Tri-Mer offers two distinctive stand-alone solutions, both with exceptional track records. Standard SCR units from Tri-Mer come in both low-temp and high temp versions, covering a temperature range of 350°F to 1100°F.

For colder sources and/or exceptionally low removal requirements – as low as 1 ppmv – the Tri-NOx Multi-Chem system accommodates any combination of NO and NO2, and guarantees a clear stack.

For applications below 300°F, Tri-Mer's Cloud Chamber System (CCS) treats PM2.5, fine, submicron, ultrafine, and condensable particulate, as well as PM10, while simultaneously wet scrubbing soluble gases. The CCS is an attractive alternative to wet ESP on special applications. The Cloud Chamber Scrubber uses charged droplets – not charged particles – and consequently requires less energy. Acid gases and other soluble gases are scrubbed at 99% efficiency.

Tri-Mer has introduced the Laser Chiller / Dust Collector Combo Unit. Its air-cooled water chiller is engineered for heavy-service laser heads and optics, and delivers reliable ± .5° uniformity. MERV 16 filters are 99.999% efficient on 0.5 micron and larger particles by weight. more


The world's first commercial application of a ship emissions capturing system became operational at the Port of Los Angeles in April 2014. Exhaust is processed by A Catalytic Ceramic Filter System, built by Tri-Mer. Click here for details

Tri-Mer now has nine projects on glass furnace emissions in the U.S. that cover the range of glass and furnace types. The latest system controls glass furnace emissions for PM, SOx, and NOx using the Catalytic Ceramic filter system. Tri-Mer ceramic filter systems have become the technology of choice for float, container, and glassware projects, and both air-fuel and oxy-fired furnaces.

Click here for a news item on the
Saint-Gobain Dolton project.

Catalytic ceramic filter technology selected for military installation. Tri-Mer is completing a fast-track project for a boiler installation at Ft. Irwin, one of the military's premier training facilities. The Tri-Mer system will provide regulatory compliance on PM, metals, SO2, SO3, and NOx.

RTO applications are growing. Tri-Mer has completed the first of two projects for control of PM, NOx, and dioxins following existing thermal oxidation equipment. The firms are Fortune 100 and Fortune 100 Fastest Growing companies in the high tech sector. A third is in the energy recovery sector. Pending projects include cleaning the gas stream prior to thermal oxidation.

Tri-Mer has also been awarded projects by companies that treat industrial kiln emissions. The Non-Catalytic Ceramic Filter with dry sorbent injection was selected for PM, SOx, and HCl removal, with the option to upgrade a Catalytic Ceramic Filter for NOx removal in the future. A second, larger project uses UltraCat filters for PM, SOx, HCl, HF, & NOx. These projects became operational in 2012.