Ceramic catalyst filters destroy air pollutants - Case study
Catalyst-embedded ceramic filters offer a new technological capability of removing NOx at lower temperatures, while simultaneously removing PM, SOx and HC1. The technology also removes organic hazardous air pollutants (O-HAPS) THC, dioxins and mercury, all in a single compact system.
Applications for the technology include: the Cement NESHAP; Boiler MACT for coal; incinerator CISWI MACT; Hazardous Waste MACT; regulations on glass furnaces; ceramics manufacturing, including tracking proppants, kilns of all varieties; and thermal oxidizer clean up.
As regulations proliferate and become more stringent, the filters offer a powerful straightforward approach compared to a long train of stand-alone equipment. The advantages are not in performance alone, but in capital cost and operating expense.
Typically, PM is removed to ultralow levels (less than 2 mg per Nnr*, 0.001 grains per dscf), while other pollutants can be eliminated at levels greater than 90 percent.
European Successes Jump the Pond
Low-density ceramic filters, often called 'candles' because of their solid tube shape, have been used in pollution control to remove PM and acid gases since die late 1980s. 'ITic additional capability to reduce NOx, dioxins and O-HAP THC became available in 2005 with the innovation of embedding filter walls with inicronized catalyst.
With the success of the first systems in Europe, Japan and Australia, the United States now has regulations that require use of this advanced technology. There has been a sharp up-swing of projects as the capability of these systems has become more widely known.
No comments were found for Ceramic catalyst filters destroy air pollutants - Case study. Be the first to comment!