Western U.S. low-rank coals contain up to 40 percent moisture.  Their high moisture content and resultant low heating value affect both boiler efficiency and transportation costs.  Upgrading enhances power plant efficiency, increases coal energy density, and reduces emissions of regulated substances, including mercury and sulfur.

WRI has a long history in coal upgrading.  We work with private clients such as Fuels Management Inc. and Headwaters Inc. to develop and demonstrate proprietary coal upgrading technologies, and we develop our own upgrading technologies with industrial partners.