Test Results

Energy & Environment Research Center at the University of North Dakota
Pilot-scale and full-scale tests on The Chem-Mod™ Solution have been conducted by Chem-Mod and its licensees in the U.S. Chem-Mod coordinated with the Energy & Environmental Research Center (EERC) at the University of North Dakota, a pre-eminent international coal research and development center, to conduct the majority of the pilot-scale testing.

Pilot tests of The Chem-Mod™ Solution were conducted for total mercury, combined mercury and nitrogen oxide control. Overall, mercury air emissions were reduced in the range of 86 to 98 percent, sulfur dioxide air emissions were reduced in the range of 40 to 75 percent and nitrogen oxide air emissions were reduced in the range of 10 to 31 percent.

Full-scale testing of the technology has been performed on several occasions at five different utility boilers. These units ranged in size from 30 to 190 megawatts (net) and included stoker, cyclone and pulverized coal burners. The tests were designed to explore the multi-pollutant effectiveness of The Chem-Mod™ Solution. Varying formulations and application rates were used during the tests to target mercury, sulfur dioxide and nitrogen oxide individually and in combination. The emission results of these full-scale commercial tests were very encouraging and mirrored reductions found in the initial testing phase. 

Testing Site

Timing of Tests

Measured Emission Reductions


Mercury (%)

Sulfur Dioxide (%)

Nitrogen Oxide (%)


Commercial Test #1

October 2005




Commercial Test #2

November 2005




Commercial Test #3

December 2005




Commercial Test #4

August 2006




Commercial Test #5

October 2006




Chem-Mod’s test results were overseen and measured by EERC personnel during five individual tests conducted at four commercial power plants.  These results are the maximum air emissions reductions that were recorded during the commercial testing period, as reflected in the listed reductions for mercury (Hg), sulfur dioxide (SO2) and nitrogen oxide (NOx).

The level of pollutant reduction achieved at a particular plant using The Chem-ModTM Solution will vary depending on the type of coal burned and other operating conditions.