Novel Process for Enhancement of Removal of Mercury in Coal-Combustion Flue Gas

EPA Contract Number: 68D00258
Title: Novel Process for Enhancement of Removal of Mercury in Coal-Combustion Flue Gas
Investigators: Senior, Constance L.
Small Business: Physical Sciences Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 2000 through March 1, 2001
Project Amount: $69,926
RFA: Small Business Innovation Research (SBIR) - Phase I (2000) RFA Text |  Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)


Mercury from coal-fired utilities has been identified as the most hazardous air pollutant and the greatest potential public health concern. Coal-fired utilities in the United States were responsible for one-third of anthropogenic emissions of mercury (51 tons of mercury per year) into the air during 1994 to 1995. If regulations are imposed at the federal level, utility plants will want to have available the least expensive control technology. Physical Sciences, Inc. (PSI), in collaboration with Reaction Engineering International (REI) and the University of Connecticut, proposes an alternative novel route to enhance the effectiveness of mercury control technology applied to coal-fired power plants. The proposed mercury process involves oxidation of elemental mercury in flue gas using inexpensive reagents that do not contain or produce any toxic compounds. The oxidized mercury will be captured efficiently by pollution control systems, thus lowering the cost per pound of mercury removal. A two-phase program is proposed in which PSI will demonstrate feasibility of the proposed process, from laboratory-scale experimentation to pilot-scale testing. The objective of this effort is to prepare for an integrated test of the process at a utility site after the conclusion of the Phase II program. PSI will work with an established equipment supplier to develop and demonstrate the process at a utility site.

Supplemental Keywords:

small business, SBIR, air emissions, pollution control, mercury, engineering, chemistry, EPA., RFA, Scientific Discipline, Air, Toxics, Waste, Ecosystem Protection/Environmental Exposure & Risk, particulate matter, Chemical Engineering, air toxics, mercury transport, Environmental Chemistry, HAPS, VOCs, exploratory air chemistry and physics, Incineration/Combustion, Engineering, 33/50, Engineering, Chemistry, & Physics, Environmental Engineering, Nox, particulates, flue gas , mercury, coal fired utility boiler , pollution control technologies, Sulfur dioxide, powdered activated carbon (PAC), PAC, emissions, flue gas, sorbents, mercury & mercury compounds, Mercury Compounds, combustion, coal combustion, coal fired power plants, Volatile Organic Compounds (VOCs), control technologies, flue gases, removal

Progress and Final Reports:

  • Final