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EnviroScrub’s 97% Removal Rate for Oxidized Mercury Verified by Joint Testing with DOE, EERC and DTE Energy
18 August, 2003
Minneapolis, Minnesota
EnviroScrub Technologies Corporation's revolutionary dry Pahlman™ Process
Multi-Pollutant Control (MPC) technology has received independent, third-party
verification from the Energy & Environmental Research Center (EERC) of the University
of North Dakota in Grand Forks, North Dakota. The Pilot Unit testing trials were
jointly sponsored by the EERC, DTE Energy, and the United States Department of
Energy’s (DOE) National Energy Technology Laboratory. The purpose of the joint
testing project was to verify and document the mercury (Hg) removal efficiency
of EnviroScrub's Pahlman™ Process technology at DTE Energy’s coal-fired River
Rouge Power Station in River Rouge, Michigan.
The EERC’s testing results documented that EnviroScrub's Pahlman™ Process technology
removed up to 97% of oxidized mercury (Hg2+) while simultaneously removing 98% of NOX
and 100% of SO2. A slipstream of River Rouge’s Unit #3, a 290-megawatt boiler
operating on a blend of sub-bituminous Powder River Basin (PRB) and Eastern bituminous
coals and equipped with low NOX burners, was diverted from the main exhaust duct and
routed to EnviroScrub’s Mobile Pilot Unit for target pollutant removal. The EERC
conducted simultaneous inlet and outlet sampling from EnviroScrub’s Mobile Pilot
Unit using both the EPA-approved Ontario Hydro (OH) method and mercury semi-continuous
emission monitors (Hg SCEMs).
“Having the Pahlman™ Process’ oxidized mercury removal verified by the EERC, a
recognized governmental and industry authority on mercury measurement, independently
confirms EnviroScrub’s ability to capture oxidized mercury. We are currently working
with the EERC to conduct testing specifically designed to document EnviroScrub’s
ability to achieve the same industry-leading removal rates for elemental mercury,”
commented Richard M. Boren, EnviroScrub's Director of Emissions and Environmental
Operations.
These exceptional capture percentages were achieved using a single-stage, dry Pahlman™
Process technology system; which can essentially replace three separate Emissions
Reduction Technology (ERT) systems -- wet FGD for SOX-scrubbing, SCR for NOX-scrubbing,
and Activated Carbon injection for mercury-reduction. The test results highlight the
competitive Capital and Operating & Maintenance cost structures possible with
implementation of the Pahlman™ Process technology in lieu of traditional wet FGD,
SCR, and Activated Carbon systems. The Pahlman™ Process can save power generation
companies tens of millions of dollars in Emissions Reduction Technology costs at a
single coal-fired power generation plant.
EnviroScrub, a privately-held deployment-stage company based in Minneapolis, Minnesota,
licenses its patented and proprietary dry Pahlman™ Process NOX / SOX / Hg / PM 2.5 /
HCl / H2S scrubbing technology to power generation and industrial plants worldwide.
EnviroScrub plans to compete in the multi-billion dollar U.S. Emissions Reduction
Technology market with its first commercial-scale projects in 2004.
For more information, contact:
EnviroScrub Technologies Corporation
Suite 650
1650 West 82nd Street
Minneapolis, MN 55431
Phone: 952-884-7337
FAX: 952-884-4911
E-mail: info@enviroscrub.com
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